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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2142. Отображено 100.
14-03-2013 дата публикации

Nanostructured dielectric materials for high energy density multilayer ceramic capacitors

Номер: US20130063858A1
Автор: Alan Devoe, Fatih Dogan, Ian Burn
Принадлежит: Alan Devoe, Fatih Dogan, Ian Burn

A multilayer ceramic capacitor, having a plurality of electrode layers and a plurality of substantially titanium dioxide dielectric layers, wherein each respective titanium dioxide dielectric layer is substantially free of porosity, wherein each respective substantially titanium dioxide dielectric layer is positioned between two respective electrode layers, wherein each respective substantially titanium dioxide dielectric layer has an average grain size of between about 200 and about 400 nanometers, wherein each respective substantially titanium dioxide dielectric layer has maximum particle size of less than about 500 nanometers. Typically, each respective substantially titanium dioxide dielectric layer further includes at least one dopant selected from the group including P, V, Nb, Ta, Mo, W, and combinations thereof, and the included dopant is typically present in amounts of less than about 0.01 atomic percent.

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Номер записи: 1
13-06-2013 дата публикации

Shapeable short circuit resistant capacitor

Номер: US20130148255A1
Автор: John D. Myers, Ralph S. Taylor, William J. Baney
Принадлежит: Delphi Technologies Inc

A ceramic short circuit resistant capacitor that is bendable and/or shapeable to provide a multiple layer capacitor that is extremely compact and amenable to desirable geometries. The capacitor that exhibits a benign failure mode in which a multitude of discrete failure events result in a gradual loss of capacitance. Each event is a localized event in which localized heating causes an adjacent portion of one or both of the electrodes to vaporize, physically cleaning away electrode material from the failure site. A first metal electrode, a second metal electrode, and a ceramic dielectric layer between the electrodes are thin enough to be formed in a serpentine-arrangement with gaps between the first electrode and the second electrode that allow venting of vaporized electrode material in the event of a benign failure.

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Номер записи: 2
13-06-2013 дата публикации

LAMINATED CERAMIC ELECTRONIC COMPONENT

Номер: US20130148256A1
Автор: Banno Koichi, Kanzaki Taisuke, NAKAMURA Masanori, Otsuka Masahiro, Shiota Akihiro, Suzuki Shoichiro
Принадлежит: MURATA MANUFACTURING CO., LTD.

A laminated ceramic electronic component includes a laminated body including a plurality of stacked ceramic layers and a plurality of internal electrodes arranged along interfaces between the ceramic layers, and an external electrode located on an outer surface of the laminated body. In the laminated ceramic electronic component, the ceramic layers have a composition including a main constituent of a barium titanate-based compound and BiO, and the internal electrodes have a main constituent of Al. 1. A laminated ceramic electronic component comprising:a laminated body including a plurality of stacked ceramic layers and a plurality of internal electrodes arranged along interfaces between the ceramic layers; andan external electrode located on an outer surface of the laminated body; wherein{'sub': 2', '3, 'the ceramic layers have a composition including a main constituent of a barium titanate-based compound and BiO; and'}the internal electrodes have a main constituent of Al.2. The laminated ceramic electronic component according to claim 1 , wherein a content of the BiOwith respect to 100 parts by weight of the main constituent in the ceramic layers is about 1 part by weight or more and about 20 parts by weight or less.3. The laminated ceramic electronic component according to claim 1 , wherein the ceramic layers further include CuO at about 0.01 parts by weight or more and about 1 part by weight or less with respect to 100 parts by weight of the main constituent.4. The laminated ceramic electronic component according to claim 2 , wherein the ceramic layers further include CuO at about 0.01 parts by weight or more and about 1 part by weight or less with respect to 100 parts by weight of the main constituent.5. The laminated ceramic electronic component according to claim 1 , wherein an oxide layer containing Al and Bi is located at interfaces between the ceramic layers and the internal electrodes.6. The laminated ceramic electronic component according to claim 2 , ...

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Номер записи: 3
01-08-2013 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME

Номер: US20130194715A1
Автор: KIM Chang Hoon, Kim Hyo Jung, KWON Sang Hoon, LEE Byoung Hwa, Yoon Seok Hyun
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

There are provided a multilayer ceramic electronic component and a method of manufacturing the same. Here, an average diameter (D) of ceramic grains in a cover area is smaller than an average diameter (D) of ceramic grains in the active area, and when a thickness of the cover area is expressed by Tc, 9 um≦Tc≦25 um and Tc/Dc≧55 are satisfied. A multilayer ceramic capacitor having excellent moisture-resistance properties may be obtained. 1. A multilayer ceramic electronic component , comprising:a ceramic body;external electrodes formed on outer surfaces of the ceramic body; andinternal electrodes laminated with ceramic layers each interposed therebetween in the ceramic body,wherein the ceramic body includes an active area from an uppermost internal electrode to a lowermost internal electrode and a cover area formed above or below the active area,{'sub': c', 'a, 'an average diameter (D) of ceramic grains in the cover area formed above or below the active area is smaller than an average diameter (D) of ceramic grains in the active area, and'}{'sub': c', 'c', 'c', 'c, 'when a thickness of the cover area is expressed by T, 9 um≦T≦25 um and T/D≧55 are satisfied.'}2. The multilayer ceramic electronic component of claim 1 , wherein the average diameter (D) of ceramic grains in the cover area is an average diameter of the ceramic grains in the cover area in a thickness direction of the ceramic body.31. The multilayer ceramic electronic component of claim claim 1 , wherein 1.1≦D/D≦4.4 is satisfied.4. The multilayer ceramic electronic component of claim 1 , wherein the ceramic body includes a dielectric material.5. The multilayer ceramic electronic component of claim 4 , wherein the dielectric material includes barium titanate or strontium titanate.6. The multilayer ceramic electronic component of claim 1 , wherein the number of the internal electrodes laminated in the ceramic body is 250 or greater.7. The multilayer ceramic electronic component of claim 1 , wherein the ...

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Номер записи: 4
29-08-2013 дата публикации

Laminated Ceramic Electronic Component and Manufacturing Method Therefor

Номер: US20130222973A1
Автор: Hiramatsu Takashi, Hirata Yosuke, SAITO Yoshito, Tsuji Hideaki, UKAI Hiroyuki, Wada Hiroyuki
Принадлежит: MURATA MANUFACTURING CO., LTD.

A laminated ceramic capacitor including a laminated body having a plurality of stacked ceramic layers and internal electrodes located between the ceramic layers. The internal electrodes have a plurality of ceramic columnar members formed therein, which project into the internal electrodes from interfaces between the ceramic layers and the internal electrodes, but do not penetrate in the thickness direction of the internal electrodes. 1. A laminated ceramic electronic component comprising:a laminated body having a plurality of stacked ceramic layers and internal electrode layers between the ceramic layers,wherein the internal electrode layers have a plurality of ceramic columnar members contained therein, the columnar members having base ends located at an interface between the ceramic layers and the internal electrode layers, and having tips located within the internal electrode layers, andwhen an observation is made with the use of an electron microscope while focusing on a polished cross section of the laminated body in a stacking direction, with the internal electrode layers exposed at the cross section and then dissolved and removed by chemical etching,(1) the columnar members have the base ends joined with the ceramic layers, and have the tips located in a range of 20% or more and 90% or less of a thickness of the internal electrode layers,(2) the columnar members have a width of 0.8 μm or less in 50% or more from the base end to the tip, and(3) the columnar members are present at a rate of one or more per 10 μm in length of the internal electrode layers.2. The laminated ceramic electronic component according to claim 1 , further comprising ceramic penetrating members penetrating through the internal electrode layers claim 1 , and a ratio of an area occupied by the penetrating members to an area occupied by the internal electrode layers is 3% or less.3. The laminated ceramic electronic component according to claim 2 , wherein a main constituent of the columnar ...

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Номер записи: 5
29-08-2013 дата публикации

Method for producing slurry composition

Номер: US20130225741A1
Автор: Kenichi Ootsuki
Принадлежит: Sekisui Chemical Co Ltd

The present invention provides a method for producing a slurry composition which realizes excellent dispersibility through simple steps and can maintain high dispersibility over a long term. In addition, the present invention provides a slurry composition produced using this method. The present invention provides s method for producing a slurry composition containing an inorganic powder, a polyvinyl acetal resin, and an organic solvent, the method comprising the steps of: mixing an inorganic powder, a mixed polyvinyl acetal resin (A) and an organic solvent for inorganic dispersion to prepare an inorganic dispersion; mixing a polyvinyl acetal resin (B) and an organic solvent for resin solution to prepare a resin solution; and adding the resin solution to the inorganic dispersion, the mixed polyvinyl acetal resin (A) including a polyvinyl acetal resin (a1) having a hydroxy group content of 20 to 40 mol % and a polyvinyl acetal resin (a1) having a hydroxy group content of 28 to 60 mol %, the polyvinyl acetal resin (a1) and the polyvinyl acetal resin (a2) being in a relation represented by the following formula (1): Y−X ≧5   (1) wherein X represents the hydroxy group content (mol %) in the polyvinyl acetal resin (a1), and Y represents the hydroxy group content (mol %) in the polyvinyl acetal resin (a2), the polyvinyl acetal resin (B) having a polymerization degree of 800 to 4200, and an amount of the mixed polyvinyl acetal resin (A) used in the step of preparation of the inorganic dispersion being 0.1 to 20 parts by weight relative to 100 parts by weight of the inorganic powder.

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Номер записи: 6
07-11-2013 дата публикации

Electronic component

Номер: US20130294009A1
Автор: Syunsuke TAKEUCHI, Yutaka Ota
Принадлежит: Murata Manufacturing Co Ltd

In an electronic component, a body includes top and bottom surfaces, first and second end surfaces, and first and second lateral surfaces. A first outer electrode partially extends over the bottom surface and the first end surface without being disposed on the top surface, the second end surface, and both the lateral surfaces. A second outer electrode partially extends over the bottom surface and the second end surface without being disposed on the top surface, the first end surface, and both the lateral surfaces. An area of a first end surface portion of the first outer electrode disposed on the first end surface and area of a second end surface portion of the second outer electrode disposed on the second end surface are in a range of about 6.6% to about 35.0% of area of the first and second end surfaces, respectively.

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Номер записи: 7
26-12-2013 дата публикации

DIELECTRIC CERAMIC, METHOD OF MANUFACTURING DIELECTRIC CERAMIC, AND MULTILAYER CERAMIC CAPACITOR

Номер: US20130342957A1
Автор: HIROI Kazumichi, KONISHI Yukihiro, KOWASE Yusuke, MIZUNO Kotaro, Sato Ayumu
Принадлежит:

A dielectric ceramic whose primary component is an ABOcompound (A contains Ba and B contains Ti) has a per-layer thickness of approx. 0.5 μm or less, where the volume ratio to all dielectric sintered grains of those whose grain size is in a range of 0.02 μm to 0.15 μm is adjusted to a grain size distribution of 1% to 10%. High dielectric constant and high reliability can be achieved at the same time with the dielectric ceramic. 1. A dielectric ceramic whose primary component is an ABOcompound (A contains Ba (barium) and B contains Ti (titanium)) and which is constituted by dielectric sintered grains , where a volume ratio to total dielectric sintered grains of those whose grain size is in a range of 0.02 μm to 0.15 μm is 1% to 10%.2. A dielectric ceramic according to claim 1 , wherein an average grain size of total sintered grains is in a range of 0.13 μm to 0.25 μm.3. A method of manufacturing a dielectric ceramic claim 1 , comprising:{'sub': '3', 'preparing dielectric green sheets by adding an auxiliary component of 0.1 μm or less in grain size to a material powder for primary component constituted by an ABOcompound (A contains Ba (barium) and B contains Ti (titanium)) and having a grain size of 0.05 μm to 0.12 μm; and'}sintering the dielectric green sheets so that a volume ratio to total dielectric sintered grains of those whose grain size is in a range of 0.02 μm to 0.15 μm becomes 1% to 10%.4. A method of manufacturing a dielectric ceramic according to claim 3 , wherein an average grain size of total sintered grains constituting the dielectric ceramic is in a range of 0.13 μm to 0.25 μm.5. A multilayer ceramic capacitor formed by alternately stacking dielectric layers constituted by dielectric sintered grains claim 3 , and electrode layers claim 3 , wherein:a thickness of each dielectric layer is 0.5 μm or less; and{'sub': '3', 'a primary component of the dielectric layer is an ABOcompound (A contains Ba (barium) and B contains Ti (titanium)) and a volume ratio ...

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Номер записи: 8
09-01-2014 дата публикации

LAMINATED CERAMIC CAPACITOR

Номер: US20140009864A1
Автор: Takashima Kenji, TAKEOKA Shinsuke
Принадлежит: TAIYO YUDEN CO., LTD.

A laminated ceramic capacitor has multiple layered dielectric ceramic layers of a dielectric ceramic constituted by primary phase grains whose primary component is BaTiO, secondary phase grains containing at least Re (Re represents at least one of Eu, Gd, Dy, Ho, Er, Yb, and Y), Ba, and Ti, and grain boundary phase containing at least one of B and Li or both; and internal electrodes which are made of Cu or Cu alloy. When a thickness of the dielectric ceramic layer is given by t, and when grain sizes at cumulative 20%, cumulative 50%, and cumulative 95% points of a cumulative count distribution of the primary phase grains are given by D20, D50, and D95, respectively, D20≦D50×70%, D50≦t/4, D95≦t/2, and CV value ((standard deviation between D20 and D95)/D50)<40% are satisfied. 1. A laminated ceramic capacitor having: a ceramic laminate of roughly rectangular solid shape constituted by multiple layered dielectric ceramic layers which in turn are constituted by a dielectric ceramic constituted by primary phase grains whose primary component is BaTiO , secondary phase grains containing at least Re (Re represents at least one of Eu , Gd , Dy , Ho , Er , Yb , and Y) , Ba , and Ti , and grain boundary phase containing at least one of B (boron) and Li (lithium) or both; internal electrodes which are made of Cu or Cu alloy and formed in a manner opposing each other via the dielectric ceramic and lead out alternately to different end faces; and external electrodes which are formed on both end faces of the dielectric ceramic layers and connected electrically to the internal electrodes led out to the end faces ,wherein when a thickness of the dielectric ceramic layer sandwiched between the internal electrodes is given by t, and when grain sizes at cumulative 20%, cumulative 50%, and cumulative 95% points of a cumulative count distribution obtained by measuring sizes of the primary phase grains in the dielectric ceramic layer are given by D20, D50, and D95, respectively, D20≦D50× ...

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Номер записи: 9
06-02-2014 дата публикации

DIELECTRIC CERAMIC, MULTI-LAYER CERAMIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME

Номер: US20140036407A1
Автор: SHIMURA Tetsuo, TANIGUCHI Katsuya
Принадлежит: TAIYO YUDEN CO., LTD.

A dielectric ceramic is formed with sintered grains constituting the dielectric have an average grain size of 0.2 to 1.0 gm and an oxygen defect concentration of 0.2 to 0.5%. An acceptor element is added to the dielectric ceramic by no more than 0.5 mol per 100 mol of the primary component of BaTiO. The oxygen defect concentration is temporarily increased by reduction and sintering, after which the oxygen defect concentration is reduced through the subsequent re-oxidization process. Crystal strain generated in the re-oxidization process increases the dielectric constant. 1. A dielectric ceramic whose sintered grains constituting dielectric have an average grain size of 0.2 to 1.0 μm and an oxygen defect concentration of 0.2 to 0.5%.2. A dielectric ceramic according to claim 1 , wherein the dielectric contains ABO(A represents an element containing Ba claim 1 , while B represents an element containing Ti) as a primary component claim 1 , where an acceptor element is contained by p mol per 100 mol of ABOand p representing p mol number of the acceptor element is in a range of 0 Подробнее

Номер записи: 10
20-02-2014 дата публикации

LAMINATED CERAMIC CAPACITOR

Номер: US20140049876A1
Автор: YAO TAKAYUKI
Принадлежит: MURATA MANUFACTURING CO., LTD.

Provided is a laminated ceramic capacitor that can suppress the decrease in insulation resistance after a moisture-resistance loading test. It contains ceramic layers which include: main-phase grains that have a perovskite-type compound containing Ba and Ti and optionally containing Ca, Sr, Zr, and Hf; and secondary-phase grains that have an average grain size of 100 nm or more and have a Si content of 50 mol % or more per grain, the average grain boundary number, represented by (Average Thickness for Ceramic Layers )/(Average Grain Size for Main Phase Grains)−1, is greater than 0 and 3.0 or less, and the average grain size for the secondary-phase grains is 1/4 or more of the average thickness for the ceramic layers 1. A laminated ceramic capacitor comprising: a laminate comprising a plurality of stacked ceramic layers and a plurality of internal electrodes disposed at interfaces between the ceramic layers; and a plurality of external electrodes on an outer surface of the laminate and electrically connected to the internal electrodes , main-phase grains having a perovskite-type compound containing Ba and Ti and optionally containing one or more of Ca, Sr, Zr, and Hf; and', 'secondary-phase grains having an average grain size of 100 nm or more and having a Si content (calculated after excluding oxygen) of 50 mol % or more per grain,, 'wherein the ceramic layers comprisethe average grain boundary number, (Average Thickness for Ceramic Layers)/(Average Grain Size for Main Phase Grains)−1, is greater than 0 and 3.0 or less, andthe average grain size of the secondary-phase grains is ¼ or more of the average thickness for the ceramic layers.2. The laminated ceramic capacitor according to claim 1 , wherein the perovskite-type compound is barium titanate.3. The laminated ceramic capacitor according to claim 2 , wherein the secondary-phase grains having an average grain size of 200 to 320 nm claim 2 , the average grain boundary number is at least 0.8 claim 2 , and the ...

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Номер записи: 11
10-04-2014 дата публикации

DIELECTRIC COMPOSITION AND MULTILAYER CERAMIC ELECTRONIC COMPONENT MANUFACTURED USING THE SAME

Номер: US20140098455A1
Автор: CHOI Du Won, KANG Sung Hyung, SONG Min Sung
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectirc composition including dielectric grains having a perovskite structure represented by ABO, a portion of the dielectric grains having a core-shell structure, wherein dielectric grains having an average length of a core equal to or less than 250 nm and a ratio of the average length of the core to an average length of the dielectric grain below 0.8 may be 50% or more of the portion of dielectric grains having a core-shell structure, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant. 1. A dielectric composition , comprising dielectric grains having a perovskite structure represented by ABO , a portion of the dielectric grains having a core-shell structure , wherein dielectric grains having an average length of a core equal to or less than 250 nm and a ratio of the average length of the core to an average length of the dielectric grain below 0.8 are 50% or more of the portion of dielectric grains having a core-shell structure.2. The dielectric composition of claim 1 , wherein the portion of the dielectric grains having the core-shell structure is less than 80% of all of the dielectric grains.3. The dielectric composition of claim 1 , wherein the A includes one or more selected from a group consisting of barium (Ba) claim 1 , strontium (Sr) claim 1 , lead (Pb) claim 1 , and calcium (Ca).4. The dielectric composition of claim 1 , wherein the B includes one or more selected from a group consisting of titanium (Ti) and zirconium (Zr).5. The dielectric composition of claim 1 , wherein in the core-shell structure claim 1 , a content of rare earth elements included in a shell is 0.4 to 4.0 at % based on 100 at % of a B-site ion.6. The dielectric composition of claim 5 , wherein the rare earth elements include one or more selected ...

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Номер записи: 12
07-01-2021 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20210005389A1
Автор: JO Ji Hong, Joo Jin Kyung, JUNG Jin Man, LEE Min Gon, Lee Taek Jung, NA Do Heung
Принадлежит:

A multilayer ceramic capacitor includes a body including dielectric layers and first and second internal electrodes disposed with respective dielectric layers interposed therebetween to be point-symmetrical to each other, first and second connection electrodes penetrating through the body in a direction perpendicular to the dielectric layer, and connected to the first internal electrode, third and fourth connection electrodes penetrating through the body in the direction perpendicular to the dielectric layer, and connected to the second internal electrode, first and second external electrodes disposed on both external surfaces of the body and connected to the first and second connection electrodes, and third and fourth external electrodes spaced apart from the first and second external electrodes and connected to the third and fourth connection electrodes. Each of the first and second internal electrodes includes an electrode-unformed region. 1. A multilayer ceramic capacitor comprising:a body including dielectric layers and first and second internal electrodes disposed with respective dielectric layers interposed therebetween to be point-symmetrical to each other;first and second connection electrodes penetrating through the body in a direction perpendicular to the dielectric layer, and connected to the first internal electrode;third and fourth connection electrodes penetrating through the body in the direction perpendicular to the dielectric layer, and connected to the second internal electrode;first and second external electrodes disposed on both external surfaces of the body and connected to the first and second connection electrodes; andthird and fourth external electrodes spaced apart from the first and second external electrodes and connected to the third and fourth connection electrodes,wherein the second internal electrode has first and second via holes, and the first internal electrode has third and fourth via holes.2. The multilayer ceramic capacitor of ...

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Номер записи: 13
07-01-2021 дата публикации

CAPACITOR COMPONENT

Номер: US20210005391A1
Автор: Hong Ki Pyo, Lee Jong Ho, PARK Yong, Shin Woo Chul
Принадлежит:

A capacitor component includes a body including a layered portion having alternately stacked first and second internal electrodes laminated with dielectric layers interposed therebetween in a first direction, and first and second connecting portions disposed on two opposing surfaces of the layered portion, respectively, in a second direction perpendicular to the first direction and electrically connected to the first and second internal electrodes, respectively. The first and second connecting portions each include a metal layer disposed on the layered portion, a ceramic layer disposed on the metal layer, and an exposed portion penetrating through the ceramic layer to be in contact with the metal layer. 1. A capacitor component , comprising: a layered portion including alternately stacked first internal electrodes and second internal electrodes laminated with dielectric layers interposed therebetween in a first direction; and', 'first and second connecting portions disposed on two opposing surfaces of the layered portion, respectively, in a second direction perpendicular to the first direction and electrically connected to the first and second internal electrodes, respectively,, 'a body comprisingwherein the first and second connecting portions each include a metal layer disposed on the layered portion, a ceramic layer disposed on the metal layer, and an exposed portion penetrating through the ceramic layer to be in contact with the metal layer.2. The capacitor component of claim 1 , wherein an average thickness of the first and second internal electrodes is 0.4 μm or less.3. The capacitor component of claim 1 , wherein a thickness of each metal layer is within a range of 1 μm to 10 μm.4. The capacitor component of claim 1 , wherein a thickness of each ceramic layer is within a range of 3 μm to 15 μm.5. The capacitor component of claim 1 , wherein a ratio of an area claim 1 , A claim 1 , of each exposed portion in contact with the metal layer to an area claim 1 , B ...

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Номер записи: 14
07-01-2021 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20210005392A1
Автор: CHOI Jea Yeol, Joo Jin Kyung, JUNG Jin Man, LEE Min Gon, Lee Taek Jung
Принадлежит:

A multilayer ceramic capacitor includes a body including a dielectric layer and first and second internal electrodes disposed with the dielectric layer interposed therebetween and disposed in point-symmetry with each other; first and second connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the first internal electrode; third and fourth connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the second internal electrode; first and second external electrodes disposed on both surfaces of the body and connected to the first and second connection electrodes; and third and fourth external electrodes spaced apart from the first and second external electrodes and connected to the third and fourth connection electrodes, and the first and second internal electrodes include a region in which an electrode is not disposed. 1. A multilayer ceramic capacitor , comprising:a body including a dielectric layer and first and second internal electrodes disposed with the dielectric layer interposed therebetween and disposed in point-symmetry with each other;first and second connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the first internal electrode;third and fourth connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the second internal electrode;first and second external electrodes disposed on both surfaces of the body opposing each other in a stacking direction of the first and second internal electrodes and connected to the first and second connection electrodes; andthird and fourth external electrodes spaced apart from the first and second external electrodes and connected to the third and fourth connection electrodes,wherein the first and second internal electrodes include a region in which an electrode is not disposed.2. The multilayer ...

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Номер записи: 15
03-01-2019 дата публикации

HIGH ENERGY DENSITY CAPACITOR WITH MICROMETER STRUCTURES AND NANOMETER COMPONENTS

Номер: US20190006108A1
Автор: Andrakin James W.
Принадлежит:

A high density energy storage system including a giant-colossal dielectric thin film material electrically insulating between two electrodes configured to have increased overlapping surface area. 2. (canceled)3. The system of claim 1 , wherein the through-holes are defined by one or more sets of a hub claim 1 , one or more spokes extending from the hub and one or more rims surrounding the hub and coupled to the hub via the spokes.4. The system of claim 3 , wherein the rims claim 3 , the spokes and the protrusions each have a width of between 0.1976 and 100 micrometers and the hubs each have a radius of between 0.1976 and 100 micrometers.5. The system of claim 4 , wherein the hubs claim 4 , the rims claim 4 , the spokes and the protrusions each have a height of between 0.025 and 10 centimeters.6. The system of claim 1 , wherein the non-conductive film has a thickness of between 10 and 5000 nanometers.7. The system of claim 6 , wherein the non-conductive film is a compound dielectric material of two or more dielectric materials.8. The system of claim 6 , wherein the non-conductive film is a complex dielectric material of two or more dielectric materials.9. The system of claim 6 , wherein the non-conductive film comprises at least one giant-colossal dielectric material and at least one material having a non-giant-colossal dielectric constant.10. The system of claim 6 , wherein the non-conductive film covers the entirety of the first electrode or the second electrode.11. The system of claim 1 , wherein two or more of the capacitor modules are electrically coupled together in series claim 1 , in parallel or both.13. (canceled)14. The capacitor of claim 12 , wherein the through-holes are defined by one or more sets of a hub claim 12 , one or more spokes extending from the hub and one or more rims surrounding the hub and coupled to the hub via the spokes.15. The capacitor of claim 14 , wherein the rims claim 14 , the spokes and the protrusions each have a width of between ...

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Номер записи: 16
12-01-2017 дата публикации

Dielectric ceramic composition and multilayer ceramic capacitor containing the same

Номер: US20170011851A1
Автор: Chan Hee Nam, Dong Hun Kim, Jung Deok PARK, Jung Wook Seo, Seok Hyun Yoon, Sung Kwon Wi
Принадлежит: Samsung Electro Mechanics Co Ltd

A dielectric ceramic composition and a multilayer ceramic capacitor containing the same are provided. The dielectric ceramic composition contains a base material powder represented by (1−x)BaTiO 3 −xPbTiO 3 containing a first main ingredient represented by BaTiO 3 and a second main ingredient represented by PbTiO 3 , wherein x satisfies 0.0025≦x≦0.4. The multilayer ceramic capacitor includes a ceramic body in which dielectric layers containing the dielectric ceramic composition are alternately stacked with first and second internal electrodes, and first and second external electrodes formed on both end portions of the ceramic body and respectively electrically connected to the first and second internal electrodes.

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Номер записи: 17
11-01-2018 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20180012703A1
Автор: MASHIMO Yasuyuki, MOCHIGI Masaki, NAKADA Yousuke, TSUNODA Shinichi
Принадлежит:

A multilayer ceramic capacitor includes: a multilayer structure having an internal electrode and a dielectric layer alternately stacked; external electrodes provided on a first and second faces of the multilayer structure, wherein t1×L1/N is equal to or more than 0.1, when a distance between a first edge positioned at outermost of edges of the plurality of internal electrodes that are not connected to the first external electrode or the second external electrode in an array direction of the first external electrode and the second external electrode and a second edge positioned at innermost of edges of the plurality of internal electrodes that are not connected to the first external electrode or the second external electrode in the array direction is L1 (mm), each thickness of the plurality of dielectric layers is t1 (μm), and a stack number of the plurality of dielectric layers is N. 1. A multilayer ceramic capacitor comprising:a multilayer structure in which each of a plurality of internal electrodes and each of a plurality of dielectric layers are alternately stacked;a first external electrode that is provided on a first face of the multilayer structure and is connected to a subset of the plurality of internal electrodes; anda second external electrode that is provided on a second face of the multilayer structure and is connected to another subset of the plurality of internal electrodes, the second face facing the first face,{'b': 1', '1', '1', '1, 'sup': '2', 'wherein t×L/N is equal to or more than 0.1, when a distance between a first edge that is an outermost edge of edges of the plurality of internal electrodes that is not connected to the first external electrode or the second external electrode in an array direction of the first external electrode and the second external electrode and a second edge that is an innermost edge of edges of the plurality of internal electrodes that is not connected to the first external electrode or the second external electrode ...

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Номер записи: 18
10-01-2019 дата публикации

Dielectric Ceramic Composition, Method for the Production and Use Thereof

Номер: US20190013149A1
Автор: Pavol Dudesek
Принадлежит: TDK Electronics AG

A dielectric ceramic composition, a method for producing a dieelctric composition and the use of the dielectric composition are disclosed. In an embodiment a ceramic composition includes a main component with a quantity ratio Mg(1+x)(1−y)O3+xA(1+x)ySi(1−z)Dz and a remainder comprising contaminants, wherein 0.01×0.30, wherein 0.00≤y≤0.20, and wherein 0.00≤z≤1.00.

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Номер записи: 19
14-01-2021 дата публикации

CAPACITOR COMPONENT

Номер: US20210012965A1
Автор: CHOI Hye Young, GU Hyun Hee, JO Ji Hong, LEE Jae Hyun, LEE Jang Yeol, Lee Jong Ho, LEE Yoo Jeong, PARK Myung Jun
Принадлежит:

A capacitor component includes a body including dielectric layers, first and second internal electrodes, laminated in a first direction, facing each other, and first and second cover portions, disposed on outermost portions of the first and second internal electrodes, and first and second external electrodes, respectively disposed on both external surfaces of the body in a second direction, perpendicular to the first direction, and respectively connected to the first and second internal electrodes. An indentation is disposed at at least one of boundaries between the first internal electrodes and the first external electrode or one of boundaries between the second internal electrodes and the second external electrode. 1. A capacitor component comprising:a body including dielectric layers, first and second internal electrodes, laminated in a first direction, facing each other, and first and second cover portions, disposed on outermost portions of the first and second internal electrodes; andfirst and second external electrodes, respectively disposed on both external surfaces of the body in a second direction, perpendicular to the first direction, and respectively connected to the first and second internal electrodes,wherein an indentation is disposed at at least one of boundaries between the first internal electrodes and the first external electrode or one of boundaries between the second internal electrodes and the second external electrode.2. The capacitor component of claim 1 , wherein the indentation is disposed at outermost boundaries of the body in the first direction claim 1 , among the boundaries between the first internal electrodes and the first external electrode and the boundaries between the second internal electrodes and the second external electrode.3. The capacitor component of claim 1 , wherein the indentation is disposed at boundaries between the first internal electrodes and the first external electrode and boundaries between the second internal ...

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Номер записи: 20
14-01-2021 дата публикации

CAPACITOR COMPONENT

Номер: US20210012967A1
Автор: CHOI Hye Young, GU Hyun Hee, JO Ji Hong, LEE Jae Hyun, LEE Jang Yeol, Lee Jong Ho, LEE Yoo Jeong, PARK Myung Jun
Принадлежит:

A capacitor component includes a body including a dielectric layer, a first electrode and a second internal electrode, laminated in a first direction, opposing each other, and a first cover portion and a second cover portion, disposed on outermost surfaces of the first and second internal electrodes, each having a thickness of 25 μm or less, a first electrode layer and a second electrode layer, respectively disposed on both external surfaces of the body in a second direction perpendicular to the first direction and respectively, and plating layers, respectively disposed on the first and second electrode layers. A metal oxide is disposed on a boundary between the first electrode layer and the plating layer and a boundary between the second electrode layer and the plating layer. 1. A capacitor component comprising:a body including a dielectric layer, a first electrode and a second internal electrode, laminated in a first direction, opposing each other, and a first cover portion and a second cover portion, disposed on outermost surfaces of the first and second internal electrodes, each having a thickness of 25 μm or less;a first electrode layer and a second electrode layer, respectively disposed on both external surfaces of the body in a second direction perpendicular to the first direction and respectively connected to the first and second internal electrodes; andfirst plating layer disposed on the first electrode layer, second plating layer disposed on the second electrode layerwherein a metal oxide is disposed on a boundary between the first electrode layer and the first plating layer and a boundary between the second electrode layer and the second plating layer.2. The capacitor component of claim 1 , wherein the metal oxide has at least one of an island claim 1 , a plurality of metal oxide deposits claim 1 , an amorphous metal oxide claim 1 , and a metal oxide powder.3. The capacitor component of claim 1 , wherein each of the first and second electrode layers ...

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Номер записи: 21
14-01-2021 дата публикации

CERAMIC ELECTRONIC DEVICE AND MANUFACTURING METHOD OF THE SAME

Номер: US20210012968A1
Автор: TANIGUCHI Katsuya
Принадлежит: TAIYO YUDEN CO., LTD.

A ceramic electronic device includes: a multilayer structure; and a cover layer, wherein a concentration of Mn of the cover layer with respect to a main component ceramic is larger than a concentration of Mn of the dielectric layers with respect to a main component ceramic in a capacity section, wherein an average crystal grain diameter of a first dielectric layer is smaller than that of a second dielectric layer, and a concentration of Mn of the first dielectric layer with respect to the main component ceramic is larger than a concentration of Mn of the second dielectric layer with respect to the main component ceramic, in the capacity section. 1. A ceramic electronic device comprising:a multilayer structure in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, the multilayer structure having a rectangular parallelepiped shape, the plurality of internal electrode layers being alternately exposed to a first edge face and a second edge face of the multilayer structure, the first edge face facing with the second edge face; anda cover layer that is provided at least on an upper face and a lower face of the multilayer structure in a stacking direction of the multilayer structure, a main component of the cover layer being ceramic,wherein a concentration of Mn of the cover layer with respect to a main component ceramic of the cover layer is larger than a concentration of Mn of the dielectric layers with respect to a main component ceramic of the dielectric layers in a capacity section in which a set of internal electrode layers exposed to the first edge face of the multilayer structure face with another set of internal electrode layers exposed to the second edge face of the multilayer structure,wherein an average crystal grain diameter of a first dielectric layer is smaller than that of a second dielectric layer, and a concentration of Mn of ...

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Номер записи: 22
19-01-2017 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20170018358A1
Автор: Hirata Tomotaka, Izumi Tatsuya, lsota Shinya, NISHISAKA Yasuhiro
Принадлежит:

A multilayer ceramic capacitor that includes a laminate which has a plurality of dielectric layers and a plurality of internal electrode layers respectively laminated. The dielectric layers are a perovskite type structure containing Ba, Sr, Zr, Ti and Hf, and optionally Ca, and further include V, wherein (number of moles of Sr)/(number of moles of Ba+number of moles of Ca+number of moles of Sr) is 0.6 to 0.95, (number of moles of Zr)/(number of moles of Zr+number of moles of Ti+number of moles of Hf) is 0.9 to 0.98, thicknesses of the dielectric layers are 1 μm or less, and an average particle size of dielectric particles constituting the dielectric layers is 0.8 μm or less. 1. A multilayer ceramic capacitor comprising: (number of moles of Sr)/(number of moles of Ba+number of moles of Sr) is 0.6 to 0.95,', '(number of moles of Zr)/(number of moles of Zr+number of moles of Ti+number of moles of Hf) is 0.9 to 0.98,', 'a thickness of the dielectric layers is 1 μm or less, and', 'an average particle size of dielectric particles of the dielectric layer is 0.8 μm or less;, 'a laminate having a plurality of dielectric layers and a plurality of internal electrode layers respectively laminated, and having a first main surface and a second main surface opposed to each other in a lamination direction, a first side surface and a second side surface opposed to each other in a width direction orthogonal to the lamination direction, and a first end surface and a second end surface opposed to each other in a length direction orthogonal to the lamination direction and the width direction, the dielectric layers comprising a perovskite type structure containing Ba, Sr, Zr, Ti, Hf, and V, wherein'}a first external electrode covering the first end surface and extending from the first end surface onto the first and second main surfaces and the first and second side surfaces; anda second external electrode covering the second end surface and extending from the second end surface onto the ...

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Номер записи: 23
19-01-2017 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20170018363A1
Автор: FUKUNAGA Daiki, MORIYAMA Koji, Tanaka Hideaki
Принадлежит:

A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode. 1. A multilayer ceramic capacitor comprising:a laminated body including a plurality of dielectric layers laminated and a plurality of internal electrodes; anda plurality of external electrodes electrically connected to the internal electrodes; whereinthe laminated body includes a first principal surface and a second principal surface opposed in a laminating direction, a first side surface and a second side surface opposed in a width direction perpendicular or substantially perpendicular to the laminating direction, and a first end surface and a second end surface opposed in a length direction perpendicular or substantially perpendicular to both the laminating direction and the width direction;the plurality of internal electrodes includes first internal electrodes exposed at the first end surface, and second internal electrodes exposed at the second end surface to be opposed to the first internal electrodes with the dielectric layers interposed therebetween;the plurality of external electrodes includes a first external electrode covering the first end surface and electrically connected to the first internal electrodes, and a second external electrode covering the second end surface and connected to the second internal electrodes; andregions where the first internal electrodes or the second internal electrodes are not present are regarded as side margin ...

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Номер записи: 24
03-02-2022 дата публикации

Manufacturing method of ceramic powder

Номер: US20220037088A1
Автор: Chie Kawamura, Kazumichi HIROI, Osamu Hattori
Принадлежит: TAIYO YUDEN CO LTD

A manufacturing method of ceramic powder includes mixing a barium carbonate having a specific surface are of 15 m2/g or more, a titanium dioxide having a specific surface area of 20 m2/g or more, a first compound of a donor element having a larger valence than Ti, and a second compound of an acceptor element having a smaller valence than Ti and having a larger ion radium than Ti and the donor element, and synthesizing barium titanate powder by calcining the barium carbonate, the titanium dioxide, the first compound and the second compound until a specific surface area of the barium titanate powder becomes 4 m2/g or more and 25 m2/g or less.

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Номер записи: 25
03-02-2022 дата публикации

CAPACITOR COMPONENT

Номер: US20220037089A1
Автор: Hong Ki Pyo, Lee Jong Ho, PARK Yong, Shin Woo Chul
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A capacitor component includes a body including a layered portion having alternately stacked first and second internal electrodes laminated with dielectric layers interposed therebetween in a first direction, and first and second connecting portions disposed on two opposing surfaces of the layered portion, respectively, in a second direction perpendicular to the first direction and electrically connected to the first and second internal electrodes, respectively. The first and second connecting portions each include a metal layer disposed on the layered portion, a ceramic layer disposed on the metal layer, and an exposed portion penetrating through the ceramic layer to be in contact with the metal layer. 1. A capacitor component , comprising: a layered portion including alternately stacked first internal electrodes and second internal electrodes laminated with dielectric layers interposed therebetween in a first direction; and', 'first and second connecting portions disposed on two opposing surfaces of the layered portion, respectively, in a second direction perpendicular to the first direction and electrically connected to the first and second internal electrodes, respectively,, 'a body comprisingwherein the first and second connecting portions each include a metal layer disposed on the layered portion, a ceramic layer disposed on the metal layer, and an exposed portion penetrating through the ceramic layer to be in contact with the metal layer.2. The capacitor component of claim 1 , wherein the ceramic layer does not overlap the metal layer in a third direction perpendicular to the first and second directions.3. The capacitor component of claim 1 , further comprisingfirst and second external electrodes disposed on the first and second connecting portions, respectively.4. The capacitor component of claim 3 , wherein the first and second external electrodes extend onto at least a portion of two opposing surfaces of the body claim 3 , respectively claim 3 , in the ...

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Номер записи: 26
18-01-2018 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20180019060A1
Автор: KITANO Shota, SUGITA Hiroaki
Принадлежит:

A multilayer ceramic capacitor includes a body and at least two outer electrodes. The body includes first and second main surfaces, an inner layer portion and first and second outer layer portions. In the inner layer portion, dielectric layers and conductive layers are alternately stacked on each other. The second outer layer portion includes an outer portion and an inner portion. A boundary region adjacent to the inner portion in the outer portion inclines toward the first main surface. 1. A multilayer ceramic capacitor comprising:a body that includes a plurality of dielectric layers and a plurality of conductive layers stacked on each other in a stacking direction and that includes first and second main surfaces opposing each other in the stacking direction, first and second end surfaces opposing each other in a length direction and connecting the first and second main surfaces, and first and second side surfaces opposing each other in a width direction and connecting the first and second main surfaces and the first and second end surfaces; andfirst and second outer electrodes that are disposed on portions of a surface of the body; whereinthe plurality of conductive layers include first conductive layers connected to the first outer electrode and second conductive layers connected to the second outer electrode;the body includes a first outer layer portion including a first of the plurality of dielectric layers defining the first main surface, a second outer layer portion including a second of the plurality of dielectric layers defining the second main surface, and an inner layer portion adjacent to both of the first outer layer portion and the second outer layer portion, the inner layer portion includes a portion extending from a first outermost conductive layer positioned closest to the first main surface among the plurality of conductive layers through a second outermost conductive layer positioned closest to the second main surface among the plurality of ...

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Номер записи: 27
16-01-2020 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20200020483A1
Автор: FUKUNAGA Daiki, MORIYAMA Koji, Tanaka Hideaki
Принадлежит:

A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode. 1. A multilayer ceramic capacitor comprising:a laminated body including a plurality of dielectric layers and a plurality of internal electrodes laminated in a lamination direction; anda plurality of external electrodes electrically connected to respective ones of the internal electrodes; whereinthe laminated body includes a first principal surface and a second principal surface opposed in the lamination direction, a first side surface and a second side surface opposed in a width direction perpendicular or substantially perpendicular to the lamination direction, and a first end surface and a second end surface opposed in a length direction perpendicular or substantially perpendicular to both the lamination direction and the width direction;the laminated body includes rounded ridges;Si is included along the ridges;the plurality of internal electrodes include first internal electrodes exposed at the first end surface, and second internal electrodes exposed at the second end surface;the laminated body includes outer layer portions provided at a top and a bottom of the laminated body in the lamination direction, and an inner layer portion between the outer layer portions;the plurality of external electrodes include a first external electrode covering the first end surface and electrically connected to the first internal electrodes, and a second external electrode ...

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Номер записи: 28
21-01-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20210020372A1
Автор: JUNG In Kyung, Kang Jeong Mo, Kim Do Yeon, Kim Je Jung
Принадлежит:

A multilayer ceramic electronic component includes a ceramic body including a dielectric layer, and first and second internal electrodes disposed to oppose each other with the dielectric layer therebetween; first and second external electrodes having first electrode layers electrically connected to the first and second internal electrodes, respectively, and second electrode layers disposed on the first electrode layers, respectively; and an auxiliary electrode disposed between an end portion of each of the first electrode layers and an inflection point of the ceramic body. A width of the auxiliary electrode is in a range of 20 to 70% of a width of a margin portion of the first or second internal electrode. 1. A multilayer ceramic electronic component comprising:a ceramic body including a dielectric layer, and first and second internal electrodes disposed to oppose each other with the dielectric layer therebetween, and including first and second surfaces opposing each other in a stacking direction of the first and second internal electrodes, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first and second surfaces, connected to the third and fourth surfaces, and opposing each other;first and second external electrodes having first electrode layers connected to the first and second internal electrodes, respectively, and second electrode layers disposed on the first electrode layers, respectively; andan auxiliary electrode disposed between an end portion of the first electrode layers and an inflection point of the ceramic body,wherein a width of the auxiliary electrode is in a range of 20 to 70% of a width of a margin portion of the first or second internal electrode.2. The multilayer ceramic electronic component according to claim 1 , wherein the auxiliary electrode comprises a first auxiliary electrode and a second auxiliary electrode.3. The multilayer ceramic electronic ...

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Номер записи: 29
21-01-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20210020373A1
Автор: Kim Do Yeon, Kim Je Jung, KIM Min Hyang
Принадлежит:

A multilayer ceramic electronic component includes a ceramic body including a dielectric layer, and first and second internal electrodes disposed to oppose each other with the dielectric layer therebetween; first and second external electrodes having first electrode layers connected to the first and second internal electrodes, respectively, and second electrode layers disposed on the first electrode layers, respectively; and an auxiliary electrode disposed between an end portion of each of the second electrode layers and an inflection point of the ceramic body, wherein a width of the auxiliary electrode is in a range of 20 to 70% of a width of a margin portion of the first or second internal electrode. 1. A multilayer ceramic electronic component comprising:a ceramic body including a dielectric layer, and first and second internal electrodes disposed to oppose each other with the dielectric layer therebetween, and including first and second surfaces opposing each other in a stacking direction of the first and second internal electrodes, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first and second surfaces, connected to the third and fourth surfaces, and opposing each other;first and second external electrodes having first electrode layers connected to the first and second internal electrodes, respectively, and second electrode layers disposed on the first electrode layers, respectively; andan auxiliary electrode disposed between an end portion of the second electrode layers and an inflection point of the ceramic body,wherein a width of the auxiliary electrode is in a range from 20% to 70% of a width of a margin portion of the first or second internal electrode.2. The multilayer ceramic electronic component according to claim 1 , wherein the auxiliary electrode comprises a first auxiliary electrode and a second auxiliary electrode.3. The multilayer ceramic electronic ...

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Номер записи: 30
21-01-2021 дата публикации

MULTI-LAYERED CERAMIC CAPACITOR

Номер: US20210020374A1
Автор: JO Ji Hong, KIM Hwi Dae, PARK Sang Soo, Shin Woo Chul, YOON Chan
Принадлежит:

A multilayer ceramic capacitor includes a body including a dielectric layer and first and second internal electrodes having different sizes to each other, and having first and second surfaces of the first and second internal electrodes, opposing each other in a stacking direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first and second surfaces and connected to the third and fourth surfaces, and opposing each other; and first and second external electrodes. When a margin of the first internal electrode in a longitudinal direction is b, and a margin of the first internal electrode in a width direction is d, a margin of the second internal electrode in a longitudinal direction is a, and a margin of the second internal electrode in a width direction is c, a ratio (a/b) of the margin (a) of the second internal electrode in the longitudinal direction to the margin (b) of the first internal electrode in the longitudinal direction is 0.33 or more (where, a>0 and b>0) or a ratio (c/d) of the margin (c) of the second internal electrode in the width direction to the margin (d) of the first internal electrode in the width direction is 0.33 or more (where, c>0 and d>0). 1. A multilayer ceramic capacitor , comprising:a body including a dielectric layer and first and second internal electrodes having different sizes to each other, and having first and second surfaces opposing each other in a stacking direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first and second surfaces and connected to the third and fourth surfaces, and opposing each other; andfirst and second external electrodes,wherein when a margin of the first internal electrode in a longitudinal direction is b, and a margin of the second internal electrode in a longitudinal direction is a, a ratio (a/b) is 0.33 or more ( ...

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Номер записи: 31
26-01-2017 дата публикации

High energy density capacitor with high aspect micrometer structures and a giant colossal dielectric material

Номер: US20170025225A1
Автор: James W. Andrakin
Принадлежит: Smart Hybird Systems Inc

A high density energy storage system including a giant-colossal dielectric thin film material electrically insulating between two electrodes configured to have increased overlapping surface area.

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Номер записи: 32
10-02-2022 дата публикации

Thin film capacitor

Номер: US20220044875A1
Автор: Junki NAKAMOTO, Kazuhiro Yoshikawa, Kenichi Yoshida, Michihiro Kumagae, Norihiko Matsuzaka
Принадлежит: TDK Corp

Provided is a manufacturing method of a thin film capacitor comprising a capacitance portion in which at least one dielectric layer is sandwiched between a pair of electrode layers included in a plurality of electrode layers, the manufacturing method including a lamination process of alternately laminating the plurality of electrode layers and a dielectric film and forming a laminated body which will be the capacitance portion, a first etching process of forming an opening extending in a laminating direction with respect to the laminated body and exposing the dielectric film laminated directly on one of the plurality of electrode layers on a bottom surface of the opening, and a second etching process of exposing the one electrode layer at the bottom surface of the opening. In the second etching process, an etching rate of the one electrode layer is lower than an etching rate of the dielectric film.

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Номер записи: 33
29-01-2015 дата публикации

Composite Laminated Ceramic Electronic Component

Номер: US20150030830A1
Автор: Hiroshige ADACHI, Kazuhiro Kaneko, Sadaaki Sakamoto, Satoru Adachi, Seiji Fujita
Принадлежит: Murata Manufacturing Co Ltd

A composite laminated ceramic electronic component that includes co-fired low dielectric-constant ceramic layers and high dielectric-constant ceramic layers. The low dielectric-constant ceramic layers and the high dielectric-constant ceramic layers are each composed of a glass ceramic containing: a first ceramic composed of MgAl 2 O 4 and/or Mg 2 SiO 4 ; a second ceramic composed of BaO, RE 2 O 3 (where RE is a rare-earth element), and TiO 2 ; glass containing each of 44.0 to 69.0 weight % of RO (where R is an alkaline-earth metal), 14.2 to 30.0 weight % of SiO 2 , 10.0 to 20.0 weight % of B 2 O 3 , 0.5 to 4.0 weight % of Al 2 O 3 , 0.3 to 7.5 weight % of Li 2 O, and 0.1 to 5.5 weight % of MgO; and MnO. The content ratios of the glass, etc. are varied between the low dielectric-constant ceramic layers and the high dielectric-constant ceramic layers.

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Номер записи: 34
02-02-2017 дата публикации

DIELECTRIC COMPOSITION, DIELECTRIC ELEMENT, ELECTRONIC COMPONENT AND LAMINATED ELECTRONIC COMPONENT

Номер: US20170029337A1
Автор: Hirose Masakazu, Imura Tomoya, Tauchi Goushi
Принадлежит:

The problem addressed lies in providing a dielectric composition having a relatively high dielectric constant of 900 or greater when a DC bias of at least 8 V/ym is applied, and also in providing a dielectric element employing said dielectric composition, an electronic component, and a laminated electronic component. 2. The dielectric composition as claimed in claim 1 , wherein a claim 1 , b claim 1 , c and d satisfy the following: 0.27≦a≦0.48 claim 1 , 0.18≦b≦0.38 claim 1 , 0.20≦c≦0.60 claim 1 , 0.02≦d≦0.05 claim 1 , and 0.95≦a+b+c≦1.05.3. A dielectric element comprising the dielectric composition as claimed in .4. An electronic component provided with a dielectric layer comprising the dielectric composition as claimed in .5. A laminated electronic component having a laminated portion formed by alternately laminating an internal electrode layer and a dielectric layer comprising the dielectric composition as claimed in . The present invention relates to a dielectric composition and a dielectric element employing same, and to an electronic component and a laminated electronic component; more specifically, the present invention relates to a dielectric composition and a dielectric element which are advantageously used for medium- and high-voltage applications with a relatively high rated voltage.In recent years there has been a great demand for miniaturization of dielectric elements as electronic circuits reach higher densities, and miniaturization of electronic components such as laminated ceramic capacitors together with increased capacity are rapidly progressing, while the applications thereof are also expanding. Various characteristics are required as this takes place.For example, medium- and high-voltage capacitors which are used in devices such as ECMs (engine electronic computer modules), fuel injection devices, electronic control throttles, inverters, converters, HID headlamp units, hybrid engine battery control units and digital still cameras have a rated ...

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Номер записи: 35
28-01-2021 дата публикации

Multi-layered ceramic electronic component and manufacturing method thereof

Номер: US20210027943A1
Автор: Hye Ji Jang, Hyun Soo Oh, Kyoung Jin CHA, Woo Chul Shin
Принадлежит: Samsung Electro Mechanics Co Ltd

A multilayer ceramic electronic component includes a ceramic body including first and second internal electrodes disposed to face each other and a dielectric layer interposed therebetween. When an average thickness of the dielectric layer is denoted as ‘td,’ an average thickness of the first and second internal electrodes is denoted as ‘te,’ and a standard deviation of thicknesses of an internal electrode, measured at a plurality of points in a predetermined region of the internal electrode, is denoted as ‘σte,’ a ratio of the standard deviation of thicknesses of the internal electrode to the average thickness of the dielectric layer, which is denoted as ‘σte/td,’ satisfies 0.12≤σte/td≤0.21.

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Номер записи: 36
28-01-2021 дата публикации

CAPACITOR COMPONENT

Номер: US20210027949A1
Автор: ISHITOBI Satoshi, KOBAYASHI Yuji, OYAMA Daisuke, SASAKI Tomohiro, TANAKA Yuichiro
Принадлежит:

A capacitor component includes a laminate including dielectric layers and internal electrode layers, first and second external electrodes respectively provided on first and second end surfaces of the laminate, and a third external electrode provided on at least one of first and second lateral surfaces of the laminate. The internal electrode layers include a first internal electrode layer connected to the first external electrode and not connected to either the second or the third external electrode; a second internal electrode layer connected to the second external electrode and not connected to either the first or the third external electrode; a third internal electrode layer not connected to any of the first, the second, or the third external electrode; and a fourth internal electrode layer connected to the third external electrode and not connected to either the first or the second external electrode. 1. A capacitor component comprising:a laminate including dielectric layers and internal electrode layers alternately laminated in a first direction;a first external electrode and a second external electrode respectively provided on a first end surface and a second end surface of the laminate, the first and second end surfaces provided as a pair opposing each other in a second direction perpendicular or substantially perpendicular to the first direction; anda third external electrode provided on at least one of a first lateral surface and a second lateral surface of the laminate, the first and second lateral surfaces provided as a pair opposing each other in a third direction perpendicular or substantially perpendicular to the first direction and the second direction; wherein a first internal electrode layer connected to the first external electrode and not connected to either the second external electrode or the third external electrode;', 'a second internal electrode layer connected to the second external electrode and not connected to either the first external ...

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Номер записи: 37
17-02-2022 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20220051854A1
Автор: AHN Young Ghyu, KWON Yeong Lim, LEE SEUNG YONG, Park Jung Min, PARK Se Hun, SHIN Yu Ra, SON Soo Hwan
Принадлежит:

A multilayer ceramic electronic component includes a ceramic body including a dielectric layer and first and second internal electrodes with the dielectric layer interposed therebetween, the dielectric layer and the first and second internal electrodes arranged to be stacked, and a first cover portion disposed on the capacitance portion, and a second cover portion disposed on the capacitance portion, a first external electrode connected to the first internal electrode, and a second external electrode connected to the second internal electrode. The first cover portion and the second cover portion include a cover reinforcing layer including graphene. 1. A multilayer ceramic electronic component comprising:a ceramic body including a dielectric layer and first and second internal electrodes disposed to face each other with the dielectric layer interposed therebetween;a first external electrode connected to the first internal electrode; anda second external electrode connected to the second internal electrode,wherein the ceramic body includesfirst and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, and fifth and sixth surfaces opposing each other in a third direction andthe ceramic body includesa capacitance portion including the first and second internal electrodes stacked in the third direction to form capacitance,a first cover portion disposed on the fifth surface, anda second cover portion disposed on the sixth surface,wherein the first cover portion and/or the second cover portion include a cover reinforcing layer including graphene, andan average thickness of the cover reinforcing layer is 5% or more of an average thickness of the first cover portion or the second cover portion.2. The multilayer ceramic electronic component of claim 1 , whereinthe ceramic body includes:a first margin portion disposed on the third surface, anda second margin portion disposed on the fourth surface,wherein ...

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Номер записи: 38
04-02-2021 дата публикации

Multilayer ceramic capacitor

Номер: US20210035739A1
Автор: Byeong Chan KWON, Ji Hong Jo, Jin Kyung JOO, Taek Jung Lee
Принадлежит: Samsung Electro Mechanics Co Ltd

A multilayer ceramic capacitor includes a body including a dielectric layer, and first and second internal electrodes with the dielectric layer interposed therebetween, and a first through-electrode passing through the body and connected to the first internal electrode; a second through-electrode passing through the body and connected to the second internal electrode; first and second external electrodes formed on the first and second surfaces and connected to the first through-electrode; and third and fourth external electrodes spaced apart from the first and second external electrodes and connected to the second through-electrode, wherein the first to fourth external electrodes are sintered electrodes including nickel, and each comprises a first plating layer and a second plating layer sequentially stacked on the sintered electrodes.

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Номер записи: 39
04-02-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF

Номер: US20210035740A1
Автор: KIM Tae Sung, Lee Joon Woon, Shin Woo Chul, Yun Hyeong Sik
Принадлежит:

The multilayer ceramic electronic component includes a ceramic body including a dielectric layer; and first and second internal electrodes disposed inside the ceramic body, and disposed to oppose each other with the dielectric layer interposed therebetween. When an average thickness of the dielectric layer is referred to as td and a standard deviation of a thickness of the dielectric layer in each position is referred to as σtd, while an average thickness of the first and second internal electrodes is referred to as to and a standard deviation of a thickness of a pre-determined region of any layer of the internal electrodes in each position is referred to as σte, a ratio (σte/σtd) of the standard deviation of the internal electrodes in each position to the standard deviation of the thickness of the dielectric layer in each position satisfies 1.10≤σte/σtd≤1.35. 1. A multilayer ceramic electronic component , comprising:a ceramic body comprising a dielectric layer; andfirst and second internal electrodes disposed inside the ceramic body and disposed to oppose each other with the dielectric layer interposed therebetween,wherein, when an average thickness of the dielectric layer is referred to as td and a standard deviation of a thickness of the dielectric layer in each position is referred to as σtd, while an average thickness of the first and second internal electrodes is referred to as to and a standard deviation of a thickness of a pre-determined region of any layer of the internal electrodes in each position is referred to as σte, a ratio (σte/σtd) of the standard deviation of the internal electrodes in each position to the standard deviation of the thickness of the dielectric layer in each position satisfies 1.10≤σte/σtd≤1.35.2. The multilayer ceramic electronic component of claim 1 , wherein the average thickness of the dielectric layer and the first and second internal electrodes is an average thickness of the ceramic body in a length-thickness (L-T) direction ...

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Номер записи: 40
04-02-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20210035741A1
Автор: CHO Min Jung, Kang Su Ji, KIM Byung Kun, OH Yu Hong
Принадлежит:

A multilayer electronic component includes a body including a dielectric layer and an internal electrode alternately stacked therein in a stacking direction; and an external electrode disposed on the body and connected to the internal electrode. The internal electrode includes 94.0 to 99.6 wt % of Ni and 0.4 to 6.0 wt % of Cu. 1. A multilayer electronic component , comprising:a body including a dielectric layer and an internal electrode alternately stacked therein in a stacking direction; andan external electrode disposed on the body and connected to the internal electrode,wherein the internal electrode includes 94.0 to 99.6 wt % of Ni and 0.4 to 6.0 wt % of Cu.2. The multilayer electronic component of claim 1 , wherein the external electrode is connected to the internal electrode in a length direction of the body perpendicular to the stacking direction.3. The multilayer electronic component of claim 2 , wherein the internal electrode includes one or more electrode portions spaced apart from each other in a cross-sectional view of the body in parallel with the length and stacking directions.4. The multilayer electronic component of claim 3 , wherein claim 3 , when a ratio of a total length of the one or more electrode portions in the length direction to an overall length of the internal electrode in the length direction is defined as an internal electrode connectivity claim 3 , the internal electrode connectivity of the multilayer electronic component is 90% or higher.5. The multilayer electronic component of claim 1 , wherein an electrode thickness deviation of the internal electrode is 15% or lower.6. The multilayer electronic component of claim 1 , wherein Cu is uniformly distributed in the internal electrode.7. The multilayer electronic component of claim 1 , wherein a deviation between an amount of Cu at a ½ point of the internal electrode in the stacking direction and an amount of Cu at a ⅛ point of the internal electrode in the stacking direction is 0.1 wt % ...

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Номер записи: 41
04-02-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC DEVICE AND COMPONENT MOUNTING SUBSTRATE

Номер: US20210035743A1
Автор: FUKUOKA Tetsuhiko, NAKAMURA Tomoaki, SUGA Yasutomo, TAHARA Mikio
Принадлежит: TAIYO YUDEN CO., LTD.

A multilayer ceramic electronic device includes a ceramic main body and a pair of external electrodes respectively covering a pair of end surfaces of the ceramic main body, wherein the ceramic main body includes a laminated body including a plurality of internal electrodes laminated vertically therein, and a pair of side margin parts respectively covering a pair of side surfaces of the laminated body, and wherein a distance between a bottom surface of the ceramic main body and the bottommost internal electrode is greater than a distance between the top surface of the ceramic main body and the topmost internal electrode. 1. A multilayer ceramic electronic device , comprising:a ceramic main body having a first main surface facing a first direction, a second main surface facing a direction opposite to the first direction, a pair of side surfaces respectively facing a second direction that is perpendicular to the first direction and a direction opposite to the second direction, and a pair of end surfaces respectively facing a third direction that is perpendicular to the first and second directions and a direction opposite to the third direction; anda pair of external electrodes respectively covering the pair of end surfaces, the pair of external electrodes respectively extending from the end surfaces to the second main surface, a laminated body having a first cover part forming the first main surface, a second cover part forming the second main surface, and a plurality of internal electrodes laminated in the first direction, disposed between the first cover part and the second cover part; and', 'a pair of side margin parts respectively covering a pair of side surfaces of the laminated body that respectively face the second direction and the direction opposite to the second direction, the pair of side margin parts forming the pair of side surfaces of the ceramic main body, and, 'wherein the ceramic main body includeswherein a distance, along the first direction, between ...

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Номер записи: 42
04-02-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC DEVICE

Номер: US20210035744A1
Автор: ATSUMI Teruo, IWAZAKI Yoshiki
Принадлежит: TAIYO YUDEN CO., LTD.

A multilayer ceramic device includes a ceramic main body including a plurality of internal electrodes laminated in a first direction, the ceramic main body having a pair of end surfaces respectively facing a second direction perpendicular to the first direction and a direction opposite to the second direction; a pair of protective layers covering respective entire areas of said pair of end surfaces, the protective layers each including at least one of Al, Si, Cr, Zn, Ga, Ge, In, Sn, W, Pt, Au and Bi as a main component thereof; and a pair of external electrodes respectively covering the pair of end surfaces through the pair of protective layers, respectively. 1. A multilayer ceramic device , comprising:a ceramic main body including a plurality of internal electrodes laminated in a first direction, the ceramic main body having a pair of end surfaces respectively facing a second direction perpendicular to the first direction and a direction opposite to the second direction;a pair of protective layers covering respective entire areas of said pair of end surfaces, the protective layers each including at least one of Al, Si, Cr, Zn, Ga, Ge, In, Sn, W, Pt, Au and Bi as a main component thereof; anda pair of external electrodes respectively covering the pair of end surfaces through the pair of protective layers, respectively.2. The multilayer ceramic device according to claim 1 , wherein each of the external electrodes includes at least one plated film.3. The multilayer ceramic device according to claim 2 , wherein each of the external electrodes includes at least one sputtered film next to and contacting the protective layer.4. The multilayer ceramic device according to claim 1 , wherein each of the external electrodes is made of a multilayer film that includes at least one plated film and at least one sputtered film.5. The multilayer ceramic device according to claim 1 , wherein each of the external electrodes includes at least one of Ni claim 1 , Cu claim 1 , Pd and Ag ...

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Номер записи: 43
12-02-2015 дата публикации

Multilayer Component and Method for Producing a Multilayer Component

Номер: US20150042212A1
Автор: Dieter Somitsch, Franz Rinner
Принадлежит: EPCOS AG

A method can be used for producing a fully active stack. A stack has the sides A, B, C and D running along the stacking direction. The method includes combining and temporarily making contact with the internal electrodes that make contact with the respective side on one of the sides B or D, such that the internal electrodes that make contact with the respective side can be electrically driven selectively. The electrically driven internal electrodes are electrochemically coated on the sides A and C. The stack is singulated to form a fully active stack with the electrochemically coated internal electrodes on the sides A′ and C′. A method for producing a multilayer component comprising the fully active stack and a fully active multilayer component producible according to the method are furthermore proposed.

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Номер записи: 44
06-02-2020 дата публикации

DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20200039887A1
Автор: ARIIZUMI Takuma, Ito Yasuhiro, Kaneko Toshihiko, MORIGASAKI Nobuto
Принадлежит: TDK Corporation

The object of the present invention is to provide a dielectric ceramic composition having even improved insulation specific resistance and highly accelerated lifetime. A dielectric ceramic composition comprising a dielectric particle having a core-shell structure including a main component expressed by a general formula ABO(A is Ba and the like; and B is Ti and the like) and a rare earth element component R, in which 1. A dielectric ceramic composition comprising a dielectric particle having a core-shell structure including a main component expressed by a general formula ABO(A is at least one selected from Ba , Sr , and Ca; and B is at least one selected from Ti , Zr , and Hf) and a rare earth element component R (R is at least one selected from Sc , Y , La , Ce , Pr , Nd , Pm , Sm , Eu , Gd , Tb , Dy , Ho , Er , Tm , Yb , and Lu) , in whicha shell part of the core-shell structure has an average rare earth element concentration C of 0.3 atom % or more, anda rare earth element concentration gradient S is −0.010 atom %/nm≤S≤0.009 atom %/nm which is calculated from a rare earth element concentration at 10 nm towards inner side from an outermost surface of the dielectric particle and a rare earth element concentration at 10 nm towards a shell side from a core-shell interface of the dielectric particle.2. A dielectric ceramic composition comprising a dielectric particle having a core-shell structure including a main component expressed by a general formula ABO(A is at least one selected from Ba , Sr , and Ca; and B is at least one selected from Ti , Zr , and Hf) and a rare earth element component R (R is at least one selected from Sc , Y , La , Ce , Pr , Nd , Pm , Sm , Eu , Gd , Tb , Dy , Ho , Er , Tm , Yb , and Lu) , in whicha shell part of the core-shell structure has an average rare earth element concentration C of 0.3 atom % or more, anda standard deviation σ of a rare earth element concentration satisfies σ/C≤0.15 at an area between 10 nm towards inner side from an ...

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Номер записи: 45
07-02-2019 дата публикации

CERAMIC POWDER

Номер: US20190043668A1
Автор: HATTORI Osamu, HIROI Kazumichi, KAWAMURA Chie
Принадлежит:

Ceramic powder includes: barium titanate as a main component, wherein: a donor element having a larger valence than Ti is solid-solved in the barium titanate; an acceptor element having a smaller valence than Ti and larger ion radius than Ti and the donor element is solid-solved in the barium titanate, a solid solution amount of the donor element with respect to the barium titanate is 0.05 mol or more and 0.3 mol or less; a solid solution amount of the accepter element with respect to the barium titanate is 0.02 mol or more and 0.2 mol or less; and relationships y≥−0.0003x+1.0106, y≤−0.0002x+1.0114, 4≤x≤25 and y≤1.0099 are satisfied when a specific surface area of the ceramic powder is “x” and an axial ratio c/a of the ceramic powder is “y”. 1. Ceramic powder comprising:barium titanate as a main component,wherein:a donor element having a larger valence than Ti is solid-solved in the barium titanate;an acceptor element having a smaller valence than Ti and larger ion radius than Ti and the donor element is solid-solved in the barium titanate,a solid solution amount of the donor element with respect to the barium titanate is 0.05 mol or more and 0.3 mol or less on a presumption that an amount of the barium titanate is 100 mol and the donor element is converted into an oxide;a solid solution amount of the accepter element with respect to the barium titanate is 0.02 mol or more and 0.2 mol or less on a presumption that the amount of the barium titanate is 100 mol and the acceptor element is converted into an oxide; andrelationships y≥−0.0003x+1.0106, y≤−0.0002x+1.0114, 4≤x≤25 and y≤1.0099 are satisfied when a specific surface area of the ceramic powder is “x” and an axial ratio c/a of the ceramic powder is “y”.2. The ceramic powder as claimed in claim 1 , wherein the donor element is at least one of Mo and W.3. The ceramic powder as claimed in claim 1 , wherein the acceptor element is Mn. This application is a continuation of application Ser. No. 15/623,253, filed Jun. ...

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Номер записи: 46
06-02-2020 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20200043657A1
Автор: ARIIZUMI Takuma, Ito Yasuhiro, Kaneko Toshihiko, MORIGASAKI Nobuto
Принадлежит: TDK Corporation

The object of the present invention is to provide a multilayer ceramic electronic component having improved highly accelerated lifetime and specific permittivity. A multilayer ceramic electronic component comprising a multilayer body in which an internal electrode layer and a dielectric layer are stacked in alternating manner, wherein the dielectric layer comprises a dielectric ceramic composition having a main component expressed by a general formula ABO(A is Ba and the like, and B is Ti and the like) and a rare earth component R, a segregation phase including the rare earth component R exists in the dielectric layer, an area ratio of the segregation phases in a cross section along a stacking direction is 104 ppm to 961 ppm, and 96% or more of a total area of the segregation phases contact with the internal electrode layer. 1. A multilayer ceramic electronic component comprising a multilayer body in which an internal electrode layer and a dielectric layer are stacked in alternating manner , wherein{'sub': '3', 'the dielectric layer comprises a dielectric ceramic composition having a main component expressed by a general formula ABO(A is at least one selected from the group consisting of Ba, Sr, and Ca; and B is at least one selected from the group consisting of Ti, Zr, and Hf) and a rare earth component R (R is at least one selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu),'}a segregation phase including the rare earth component R exists in the dielectric layer,an area ratio of segregation phases in a cross section along a stacking direction is 104 ppm to 961 ppm, and96% or more of a total area of the segregation phases contacts with the internal electrode layer.2. The multilayer ceramic electronic component according to claim 1 , wherein a maximum length of the segregation phase in the stacking direction is 100% or less with respect to an average thickness of the internal electrode layer.3. The multilayer ...

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Номер записи: 47
18-02-2021 дата публикации

Multilayer capacitor and board having the same mounted thereon

Номер: US20210050155A1
Автор: Ki Pyo Hong, Sim Chung KANG, Woo Chul Shin, Yong Park
Принадлежит: Samsung Electro Mechanics Co Ltd

A multilayer capacitor includes a capacitor body including dielectric layers and first and second internal electrodes, the capacitor body having first to sixth surfaces, the first internal electrode being exposed through the third, fifth, and sixth surfaces, and the second internal electrode being exposed through the fourth, fifth, and sixth surfaces, a first side portion and a second side portion, respectively disposed on the fifth surface and the sixth surface of the capacitor body, and a first external electrode and a second external electrode, respectively be connected to the first internal electrode and the second internal electrode. The first and second side portions comprise an acicular second phase including a glass comprising aluminum (Al) and silicon (Si), manganese (Mn), and phosphorus (P), and a volume of the second phase is 30% or more with respect to the entire first and second side portions.

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Номер записи: 48
18-02-2016 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20160049245A1
Автор: KATSUYAMA Takanobu, KITANO Shota, SUGITA Hiroaki
Принадлежит:

A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, length-direction first and second outer layer sections, and width-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A boundary portion between the outer portion and the inner portion has a larger Si content than the outer portion. The inner portion has a higher composition ratio of Mn to Ti than the outer portion. Each of minimum dimensions in the length direction of the length-direction first and second outer layer sections is greater than both dimensions in the width direction of the width-direction first and second outer layer sections. 1. A multilayer ceramic capacitor comprising:a body including conductive layers and ceramic dielectric layers alternately stacked on each other in a thickness direction; anda plurality of outer electrodes disposed on portions of the body; whereinthe body includes first and second principal surfaces opposing each other in the thickness direction, first and second end surfaces opposing each other in a length direction, and first and second side surfaces opposing each other in a width direction;the plurality of outer electrodes includes a first outer electrode covering at least the first end surface and a second outer electrode covering at least the second end surface;some of the conductive layers include a first effective portion and a first extension portion extending from the first effective portion toward the first end surface and connecting to the first outer electrode, and others of the conductive layers include a second effective portion ...

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Номер записи: 49
18-02-2016 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20160049246A1
Автор: KATSUYAMA Takanobu, KITANO Shota, SUGITA Hiroaki
Принадлежит:

A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and length-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. The inner portion has a higher composition ratio of Mn to Ti than the outer portion. Both of minimum dimensions in the length direction of the length-direction first and second outer layer sections are greater than a dimension in the thickness direction of the thickness-direction first outer layer section. 1. A multilayer ceramic capacitor comprising:a body including conductive layers and ceramic dielectric layers alternately stacked on each other in a thickness direction; anda plurality of outer electrodes disposed on portions of the body; whereinthe body includes first and second principal surfaces opposing each other in the thickness direction, first and second end surfaces opposing each other in a length direction, and first and second side surfaces opposing each other in a width direction;the plurality of outer electrodes includes a first outer electrode covering at least the first end surface and a second outer electrode covering at least the second end surface;some of the conductive layers include a first effective portion and a first extension portion extending from the first effective portion toward the first end surface and connecting to the first outer electrode, and others of the conductive layers include a second effective portion and a second extension portion extending from the second effective portion ...

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Номер записи: 50
18-02-2016 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20160049247A1
Автор: KATSUYAMA Takanobu, KITANO Shota, SUGITA Hiroaki
Принадлежит:

A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and width-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. A relationship expressed by T/(W−W)≦6.95 is satisfied when a minimum dimension in the width direction of the body is denoted by W, a minimum dimension in the thickness direction of the multilayer unit is denoted by T, and a minimum dimension in the width direction of the multilayer unit is denoted by W 1. A multilayer ceramic capacitor comprising:a body including conductive layers and ceramic dielectric layers alternately stacked on each other in a thickness direction; anda plurality of outer electrodes disposed on portions of the body; whereinthe body includes first and second principal surfaces opposing each other in the thickness direction, first and second end surfaces opposing each other in a length direction, and first and second side surfaces opposing each other in a width direction;the plurality of outer electrodes includes a first outer electrode covering at least the first end surface and a second outer electrode covering at least the second end surface;some of the conductive layers include a first effective portion and a first extension portion extending from the first effective portion toward the first end surface and connecting to the first outer electrode, and others of the conductive layers include a second effective portion and a second extension portion extending from the second effective portion toward ...

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Номер записи: 51
18-02-2016 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20160049255A1
Автор: KITANO Shota, SUGITA Hiroaki
Принадлежит:

A multilayer ceramic capacitor includes a body and at least two outer electrodes. The body includes first and second main surfaces, an inner layer portion and first and second outer layer portions. In the inner layer portion, dielectric layers and conductive layers are alternately stacked on each other. The second outer layer portion includes an outer portion and an inner portion. A boundary region adjacent to the inner portion in the outer portion inclines toward the first main surface. 1. A multilayer ceramic capacitor comprising:a body that includes a plurality of dielectric layers and a plurality of conductive layers stacked on each other in a stacking direction and that includes first and second main surfaces opposing each other in the stacking direction, first and second end surfaces opposing each other in a length direction and connecting the first and second main surfaces, and first and second side surfaces opposing each other in a width direction and connecting the first and second main surfaces and the first and second end surfaces; andfirst and second outer electrodes that are disposed on portions of a surface of the body; whereinthe plurality of conductive layers include first conductive layers connected to the first outer electrode and second conductive layers connected to the second outer electrode;the body includes a first outer layer portion including a first of the plurality of dielectric layers defining the first main surface, a second outer layer portion including a second of the plurality of dielectric layers defining the second main surface, and an inner layer portion adjacent to both of the first outer layer portion and the second outer layer portion, the inner layer portion includes a portion extending from a first outermost conductive layer positioned closest to the first main surface among the plurality of conductive layers through a second outermost conductive layer positioned closest to the second main surface among the plurality of ...

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Номер записи: 52
25-02-2021 дата публикации

MULTILAYER AND FLEXIBLE CAPACITORS WITH METAL-ION DOPED TIO2 COLOSSAL PERMITTIVITY MATERIAL/POLYMER COMPOSITES

Номер: US20210054168A1
Автор: HAO Jianhua, TSE Mei-Yan
Принадлежит: The Hong Kong Polytechnic University

Disclosed is polymer-ceramic composite material with colossal permittivity, comprising polymer matrix and ceramic powders embedded in the polymer matrix, wherein a part of the polymer matrix is exposed and adsorbed to the surface of the ceramic powders, and the polymer is electrically insulating. This invention simultaneously achieves large dielectric constant, negligible dielectric loss and high energy density in flexible composite capacitors based on metal-ion co-doped colossal permittivity materials. The host oxides used in this CP system is friendly to the environment, non-toxic and abundant. Additionally, the process developed is relatively simple, low cost and suitable for mass production-scale. Therefore, these composite capacitors have great technological potential for many applications. Compared to the conventional ceramic materials, composites of this invention are lightweight, scalable and easily fabricated into complex shapes towards miniaturization of the compact systems. The additional flexibility feature also possesses broad application prospects in modern electronic and energy storage devices. 1. A polymer-ceramic composite material with colossal permittivity , comprising polymer matrix and ceramic powders embedded in the polymer matrix , wherein a part of the polymer matrix is exposed and adsorbed to the surface of the ceramic powders , and the polymer is electrically insulating.2. The polymer-ceramic composite material according to claim 1 , wherein the ceramic powders comprise or essentially consisting of metal-ion doped TiOceramic powders.3. The polymer-ceramic composite material according to claim 1 , wherein the polymer is a fluoropolymer.4. The polymer-ceramic composite material according to claim 1 , which is in the form of a flexible sheet with one or more layers claim 1 , such as 1 claim 1 , 2 claim 1 , 3 claim 1 , 4 claim 1 , 5 claim 1 , 6 claim 1 , 7 claim 1 , 8 claim 1 , 9 claim 1 , 10 layers or more.5. The polymer-ceramic composite ...

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Номер записи: 53
03-03-2022 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20220068562A1
Автор: TOGO Kenichi
Принадлежит:

A multilayer ceramic capacitor includes a multilayer body, a first outer electrode on a first main surface closer to a first end surface, a second outer electrode on the first main surface closer to a second end surface, a third outer electrode on the first main surface between the first outer electrode and the second outer electrode, a first inner electrode layer connected to the first outer electrode and the second outer electrode via a first lead electrode and a second lead electrode, and a second inner electrode layer connected to the third outer electrode via a third lead electrode. When a length of the first lead electrode and a length of the second lead electrode in the width direction are each denoted by a, and a length of the third lead electrode in the width direction is denoted by b, b/a is about 0.5 to about 0.83.

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Номер записи: 54
03-03-2022 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING THE SAME

Номер: US20220068566A1
Автор: IKEBE Syouta, NISHISAKA Yasuhiro, TAKAHASHI Takefumi
Принадлежит:

A multilayer ceramic electronic component includes a multilayer body and an outer electrode on each end surfaces of the multilayer body. The outer electrode includes an underlying electrode layer and a plating layer on the underlying electrode layer. Void portions inside the underlying electrode layer are each filled with a barrier film. The barrier film is formed by an atomic layer deposition method. 1. A multilayer ceramic electronic component , comprising: multiple ceramic layers and multiple inner electrode layers that are laminated;', 'a first main surface and a second main surface opposite to each other in a height direction;', 'a first side surface and a second side surface opposite to each other in a width direction perpendicular or substantially perpendicular to the height direction; and', 'a first end surface and a second end surface opposite to each other in a length direction perpendicular or substantially perpendicular to the height direction and the width direction;, 'a multilayer body includinga first outer electrode on the first end surface; anda second outer electrode on the second end surface; whereineach of the first outer electrode and the second outer electrode includes an underlying electrode layer and a plating layer on the underlying electrode layer; andmultiple void portions inside the underlying electrode layer are each filled with a barrier film.2. The multilayer ceramic electronic component according to claim 1 , wherein the barrier film is on a portion of a surface of the underlying electrode layer.3. The multilayer ceramic electronic component according to claim 1 , wherein the barrier film covers the surfaces of the multilayer body excluding regions where the first outer electrode and the second outer electrode are disposed.4. The multilayer ceramic electronic component according to claim 1 , wherein the barrier film is a thin alumina film.5. The multilayer ceramic electronic component according to claim 1 , wherein the underlying ...

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Номер записи: 55
14-02-2019 дата публикации

CERAMIC ELECTRONIC COMPONENT AND METHOD FOR PRODUCING CERAMIC ELECTRONIC COMPONENT

Номер: US20190051458A1
Автор: TAKEMORI Yuki, TANAKA Hiromichi
Принадлежит:

A ceramic electronic component that includes a ceramic insulator and an inner conductor layer disposed in the ceramic insulator. The inner conductor layer contains a metal and a metal oxide containing at least one first metal element selected from Ti, Mg, and Zr, first insulator regions that contain at least one second metal element selected from Ti, Mg, and Zr and that are discontinuous from the ceramic insulator and present in a dispersed state in the inner conductor layer, and a second insulator region containing a third metal element the same as the second metal element contained in the first insulator regions and present around the inner conductor layer. 1. A ceramic electronic component comprising:a ceramic insulator; andan inner conductor layer disposed in the ceramic insulator, wherein the inner conductor layer contains a metal and a metal oxide containing at least one first metal element selected from a group consisting of Ti, Mg, and Zr;first insulator regions that contain at least one second metal element selected from a group consisting of Ti, Mg, and Zr, the first insulator regions being discontinuous from the ceramic insulator and present in a dispersed state in the inner conductor layer; anda second insulator region containing a third metal element that is the same as the second metal element contained in the first insulator regions, the second insulator region located around the inner conductor layer.2. The ceramic electronic component according to claim 1 , wherein the ceramic insulator contains a fourth metal element that is the same as the second metal element contained in the first insulator regions and the third metal element contained in the second insulator region.3. The ceramic electronic component according to claim 2 , wherein a first concentration of the fourth metal element contained in the ceramic insulator is lower than a second concentration of the second metal element in the first insulator regions and a concentration of the third ...

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Номер записи: 56
25-02-2021 дата публикации

Multilayer ceramic capacitor

Номер: US20210057158A1
Автор: Ji Hong Jo, Jin Kyung JOO, Jin Man Jung, Min Gon Lee, Taek Jung Lee
Принадлежит: Samsung Electro Mechanics Co Ltd

A multilayer ceramic capacitor includes a body including a dielectric layer and first and second internal electrodes disposed with the dielectric layer interposed therebetween; first and second through electrodes penetrating the body, connected to the first and second internal electrodes, respectively, and including nickel; first and second external electrodes, and connected to the first through electrode; and third and fourth external electrodes spaced apart from the first and second external electrodes, and connected to the second through electrode. Each of the first to fourth external electrodes includes a sintered electrode including nickel, and a first plating layer and a second plating layer stacked on the sintered electrode in order.

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Номер записи: 57
25-02-2021 дата публикации

MULTILAYER CAPACITOR AND BOARD HAVING THE SAME MOUNTED THEREON

Номер: US20210057160A1
Автор: CHOI Chang Hak, Kang Hae Sol, Kim Jun Hyeon, Kim Jung Min, Koo Bon Seok, Kyeong San, YI Jae Seok
Принадлежит:

A multilayer capacitor includes a capacitor body including a dielectric layer and a plurality of internal electrodes, and external electrodes disposed on both ends of the capacitor body and connected to exposed portions of the plurality of internal electrodes, respectively. Each of the external electrodes includes a conductive layer disposed on the capacitor body to be connected to one or more of the plurality of internal electrodes, a conductive resin layer covering the conductive layer, and including a plurality of metal particles, a plurality of elastic fine powder particles each having an elastic powder particle and a metal film plated on a surface of the elastic powder particle, and a conductive resin surrounding the plurality of metal particles and the plurality of elastic fine powder particles and contacting the conductive layer, and a plating layer covering the conductive resin layer. 1. A multilayer capacitor comprising:a capacitor body including a dielectric layer and a plurality of internal electrodes; andexternal electrodes disposed on both ends of the capacitor body and connected to exposed portions of the plurality of internal electrodes, respectively,wherein each of the external electrodes includes:a conductive layer disposed on the capacitor body to be connected to one or more of the plurality of internal electrodes;a conductive resin layer covering the conductive layer, and including a plurality of metal particles, a plurality of elastic fine powder particles each having an elastic powder particle and a metal film disposed on a surface of the elastic powder particle, and a conductive resin surrounding the plurality of metal particles and the plurality of elastic fine powder particles and contacting the conductive layer; anda plating layer covering the conductive resin layer.2. The multilayer capacitor of claim 1 , wherein the metal particles of the conductive resin layer include a spherical or flake type powder particles.3. The multilayer capacitor ...

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Номер записи: 58
25-02-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20210057162A1
Автор: YAMAMOTO Takayoshi
Принадлежит:

A multilayer ceramic electronic component includes a stacked body, and an external electrode including an underlying electrode layer containing a conductive metal and a glass component, a resin layer containing a thermosetting resin and no metal component, and a plating layer. The underlying electrode layer extends from a first or second end surface, and covers a portion of each of first and second main surfaces and first and second lateral surfaces. The resin layer covers the underlying electrode layer on the second main surface adjacent to the first or second end surface. The plating layer covers a portion of the surface of the underlying electrode layer that is not covered with the resin layer, and covers the surface of the resin layer. 1. A multilayer ceramic electronic component comprising:a stacked body including a plurality of ceramic layers and a plurality of internal electrode layers which are stacked, the stacked body including a first main surface and a second main surface opposite to each other in a stacking direction, a first end surface and a second end surface opposite to each other in a length direction orthogonal to or substantially orthogonal to the stacking direction, and a first lateral surface and a second lateral surface opposite to each other in a width direction orthogonal to or substantially orthogonal to the stacking direction and the length direction;a first external electrode disposed on the first end surface; anda second external electrode disposed on the second end surface; whereinthe second main surface of the stacked body defines and functions as a mounting surface; a first underlying electrode layer including a conductive metal;', 'a first resin layer including a resin and no metal component; and', 'a first plating layer;, 'the first external electrode includes a second underlying electrode layer including a conductive metal;', 'a second resin layer including a resin and no metal component; and', 'a second plating layer;, 'the second ...

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Номер записи: 59
25-02-2021 дата публикации

MULTILAYER CERAMIC CAPACITOR, CIRCUIT SUBSTRATE AND MANUFACTURE METHOD THEREFOR

Номер: US20210057163A1
Автор: Sasaki Takashi, ZAIMA Tomohiko
Принадлежит: TAIYO YUDEN CO., LTD.

A multilayer ceramic capacitor includes a ceramic main including first internal electrodes each drawn out to and reaching a pair of end surfaces and second internal electrodes each drawn out to and reaching a pair of side surfaces. A pair of end-surface external electrodes are respectively provided on the pair of end surfaces to be connected to the first internal electrodes, and a pair of side-surface external electrodes are respectively provided on the pair of side surfaces to be connected to the second internal electrodes. Each of the second internal electrodes has drawn-out parts that extend from an electrode main part and reach the pair of side surfaces, and with respect to each of the pair of side surfaces, two or more of the drawn-out parts are provided to extend from the electrode main part and reach the side surface. 1. A multilayer ceramic capacitor , comprising:a ceramic main body having a pair of end surfaces respectively facing a first direction and a direction opposite to the first direction and a pair of side surfaces respectively facing a second direction that is perpendicular to the first direction and a direction opposite to the second direction, the ceramic main body including first internal electrodes each drawn out to and reaching the pair of end surfaces and second internal electrodes each drawn out to and reaching the pair of side surfaces, the first internal electrodes and the second internal electrodes being laminated alternately in a third direction that is perpendicular to the first and second directions;a pair of end-surface external electrodes respectively provided on the pair of end surfaces, the pair of end-surface external electrodes being each connected to the first internal electrodes; anda pair of side-surface external electrodes respectively provided on the pair of side surfaces, the pair of side-surface external electrodes being each connected to the second internal electrodes,wherein each of the second internal electrodes has an ...

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Номер записи: 60
13-02-2020 дата публикации

MULTILAYER CERAMIC CAPACITOR WITH DIELECTRIC LAYERS INCLUDING DIELECTRIC GRAINS HAVING A CORE-SHELL STRUCTURE

Номер: US20200051742A1
Автор: PARK Kum Jin
Принадлежит:

A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with each of the dielectric layers interposed therebetween; and first and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrode, respectively, wherein the dielectric layer includes dielectric grains having a core-shell structure including a core and a shell, and a domain wall is disposed in the shell. 1. A multilayer ceramic capacitor comprising:a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with each of the dielectric layers interposed therebetween; andfirst and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrode, respectively,wherein the dielectric layer includes: dielectric grains having a core-shell structure including a core and a shell; and dielectric grains having a shell structure including only a shell,at least one domain wall is disposed in the core and the shell of the core-shell structure and the shell structure including only a shell,the dielectric grains having a core-shell structure and the dielectric grains having a shell structure including only the shell are intermixed throughout the entire thickness of the dielectric layer, anda direction in which the domain wall in the core extends is substantially parallel to that of the domain wall in the shell in the core-shell structure.2. The multilayer ceramic capacitor of claim 1 , wherein each of the dielectric grains includes one or more base material main components selected from the group consisting of BaTiO(0.995≤m≤1.010) claim 1 , (BaCa)(TiZr)O(0.995≤m≤1.010 claim 1 , 0≤x≤0.10 claim 1 , and 0≤y≤0.20) claim 1 , and Bam(TiZr)O(0.995≤m≤1.010 and x≤0.10) and accessory components.3. The multilayer ceramic ...

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Номер записи: 61
13-02-2020 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20200051746A1
Автор: JI Gu Won, PARK Heung Kil, PARK Se Hun
Принадлежит:

A multilayer electronic component includes a capacitor body including a plurality of dielectric layers and a plurality of first and second internal electrodes, and having first to sixth surfaces; first and second external electrodes including first and second connection portions and first and second band portions, respectively; and first and second connection terminals disposed on the first and second band portions on the first surface of the capacitor body. The first and second connection terminals are each provided with a solder receiving portion to have a symmetrical shape in a direction connecting the third and fourth surfaces and a direction connecting the fifth and sixth surfaces. 1. A multilayer electronic component comprising:a capacitor body including a plurality of dielectric layers and a plurality of first and second internal electrodes alternately disposed with the dielectric layer therebetween, and having first and second surfaces opposing each other, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first and second surfaces, connected to the third and fourth surfaces and opposing each other, one ends of the first and second internal electrodes being exposed through the third and fourth surfaces, respectively;first and second external electrodes including first and second connection portions disposed on the third and fourth surfaces of the capacitor body, respectively, and first and second band portions extending from the first and second connection portions to a portion of the first surface of the capacitor body, respectively; andfirst and second connection terminals disposed on the first and second band portions on the first surface of the capacitor body, respectively,wherein the first and second connection terminals have at least one solder receiving portions having a symmetrical shape in a direction connecting the third and fourth surfaces and a direction ...

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Номер записи: 62
10-03-2022 дата публикации

MULTILAYER ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME

Номер: US20220076891A1
Автор: Han Jun Tae, KIM Jeong Ryeol, OH Young Joon, Park Seul A, YOON Sun Ho, You Myung Hwa
Принадлежит:

A multilayer electronic component includes a body including a plurality of dielectric layers and having first and second surfaces opposing each other, third and fourth surfaces connected to the first surface and the second surface and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other, a plurality of internal electrodes disposed inside of the body, exposed to the first surface and the second surface, and having one ends exposed to the third or fourth surfaces, side margin portions disposed on the first surface and the second surface, and external electrodes disposed on the third surface and the fourth surface. The side margin portions and the plurality of dielectric layers include a metal, and a total amount of the metal included in the side margin portions is greater than that of the plurality of dielectric layers. 1. A multilayer electronic component comprising:a body including a plurality of dielectric layers and having a first surface and a second surface opposing each other, a third surface and a fourth surface connected to the first surface and the second surface and opposing each other, and a fifth surface and a sixth surface connected to the first to fourth surfaces and opposing each other;a plurality of internal electrodes disposed inside of the body, exposed to the first surface and the second surface, and having one ends exposed to the third surface or the fourth surface;side margin portions disposed on the first surface and the second surface; andexternal electrodes disposed on the third surface and the fourth surface,wherein the side margin portions and the plurality of dielectric layers include a metal, and a total amount of the metal included in the side margin portions is greater than a total amount of the metal included in the plurality of dielectric layers.2. The multilayer electronic component of claim 1 , wherein the side margin portions include a plurality of dielectric grains and ...

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Номер записи: 63
10-03-2022 дата публикации

Multilayer capacitor and board having the same mounted thereon

Номер: US20220076893A1
Автор: Ki Pyo Hong, Sim Chung KANG, Woo Chul Shin, Yong Park
Принадлежит: Samsung Electro Mechanics Co Ltd

A multilayer capacitor includes a capacitor body including dielectric layers and first and second internal electrodes, the capacitor body having first to sixth surfaces, the first internal electrode being exposed through the third, fifth, and sixth surfaces, and the second internal electrode being exposed through the fourth, fifth, and sixth surfaces, a first side portion and a second side portion, respectively disposed on the fifth surface and the sixth surface of the capacitor body, and a first external electrode and a second external electrode, respectively be connected to the first internal electrode and the second internal electrode. The first and second side portions comprise an acicular second phase including a glass comprising aluminum (Al) and silicon (Si), manganese (Mn), and phosphorus (P), and a volume of the second phase is 30% or more with respect to the entire first and second side portions.

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Номер записи: 64
10-03-2022 дата публикации

CAPACITOR COMPONENT

Номер: US20220076894A1
Автор: CHOI Hye Young, GU Hyun Hee, JO Ji Hong, LEE Jae Hyun, LEE Jang Yeol, Lee Jong Ho, LEE Yoo Jeong, PARK Myung Jun
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A capacitor component includes a body including a dielectric layer, a first electrode and a second internal electrode, laminated in a first direction, opposing each other, and a first cover portion and a second cover portion, disposed on outermost surfaces of the first and second internal electrodes, each having a thickness of 25 μm or less, a first electrode layer and a second electrode layer, respectively disposed on both external surfaces of the body in a second direction perpendicular to the first direction and respectively, and plating layers, respectively disposed on the first and second electrode layers. A metal oxide is disposed on a boundary between the first electrode layer and the plating layer and a boundary between the second electrode layer and the plating layer. 1. A capacitor component comprising:a body including a dielectric layer, a first electrode and a second internal electrode, laminated in a first direction of the body, opposing each other, and a first cover portion and a second cover portion, disposed on outermost surfaces of the first and second internal electrodes, each having a thickness of 25 μm or less;a first electrode layer and a second electrode layer, respectively disposed on both external surfaces of the body in a second direction of the body different from the first direction and respectively connected to the first and second internal electrodes; andfirst plating layer disposed on the first electrode layer, second plating layer disposed on the second electrode layerwherein a metal oxide is disposed on a boundary between the first electrode layer and the first plating layer and a boundary between the second electrode layer and the second plating layer,wherein in a cross-section perpendicular to the first direction, a plurality of indentations are disposed a boundary between the first internal electrode and the first electrode layer or a boundary between the second internal electrode and the second electrode layer.2. The capacitor ...

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Номер записи: 65
04-03-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING MULTILAYER ELECTRONIC COMPONENT

Номер: US20210065978A1
Автор: FUJII Hisashi, MASUDA Masaki, SAITO Yoshito, TAMURA Hidekazu
Принадлежит:

A multilayer electronic component includes a multilayer body including dielectric layers and inner electrode layers, the multilayer body including an electrode facing portion in which the inner electrode layers are laminated to face each other with the dielectric layers interposed therebetween. The multilayer body has a thickness of at least about 1.5 mm in a lamination direction, a length of at least about 3.0 mm, and a width of at least about 1.5 mm. Each of the dielectric layers includes Ba, Ti, and Cl. A Cl concentration Cin the entire electrode facing portion satisfies about 10 wtppm≤C≤about 50 wtppm. On an imaginary central axis line, a Cl concentration Cin a central portion of the electrode facing portion and a Cl concentration Cin both end portions of the electrode facing portion satisfy about 0.5C≤C Подробнее

Номер записи: 66
04-03-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20210065985A1
Автор: JO Ji Hong, Kim Dong Yeong, Shin Woo Chul
Принадлежит:

A multilayer electronic component includes a silicon (Si) organic compound layer having a body cover portion disposed in a region in which an electrode layer and a conductive resin layer are not disposed, of external surfaces of a body, and an extending portion disposed to extend from the body cover portion between a conductive resin layer and a plating layer of an external electrode, and thus, may improve bending strength and moisture resistance reliability. 1. A multilayer electronic component comprising:a body including dielectric layers, and first and second internal electrodes alternately stacked with respective dielectric layers interposed therebetween, the body having first and second surfaces opposing each other in a stacking direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other;a first external electrode including a first electrode layer connected to the first internal electrode, a first conductive resin layer disposed on the first electrode layer, and a first plating layer disposed on the first conductive resin layer, and each having a first connection portion disposed on the third surface of the body and a first band portion extending from the first connection portion to a portion of each of the first, second, fifth, and sixth surfaces;a second external electrode including a second electrode layer connected to the second internal electrode, a second conductive resin layer disposed on the second electrode layer, and a second plating layer disposed on the second conductive resin layer, and each having a second connection portion disposed on the fourth surface of the body and a second band portion extending from the second connection portion to a portion of each of the first, second, fifth, and sixth surfaces; anda silicon (Si) organic compound layer having a body cover portion disposed on a region of external ...

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Номер записи: 67
04-03-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20210065986A1
Автор: JO Ji Hong, Kim Dong Yeong, Shin Woo Chul
Принадлежит:

A multilayer electronic component includes a silicon (Si) organic compound layer having a body cover portion disposed in a region, in which electrode layers are not disposed, of external surfaces of a body, and an extending portion disposed to extend from the body cover portion between an electrode layer and a conductive resin layer of an external electrode, and thus, may improve bending strength and humidity resistance reliability. 1. A multilayer electronic component comprising:a body including dielectric layers, and first and second internal electrodes alternately stacked with respective dielectric layers interposed therebetween, the body having first and second surfaces opposing each other in a stacking direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other;a first external electrode including a first electrode layer connected to the first internal electrode and a first conductive resin layer disposed on the first electrode layer, the first external electrode having a first connection portion disposed on the third surface of the body and a first band portion extending from the first connection portion to a portion of each of the first, second, fifth, and sixth surfaces;a second external electrode including a second electrode layer connected to the second internal electrode and a second conductive resin layer disposed on the second electrode layer, the second external electrode having a second connection portion disposed on the fourth surface of the body and a second band portion extending from the second connection portion to a portion of each of the first, second, fifth, and sixth surfaces; anda silicon (Si) organic compound layer having a body cover portion disposed on a region of external surfaces of the body between the first and second electrode layers, a first extending portion extending from the body cover ...

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Номер записи: 68
04-03-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20210065988A1
Автор: Kim Je Jung, Lee Ji Won, Lee Seung Ryeol
Принадлежит:

A multilayer electronic component includes a body, a protrusion disposed on at least one surface of the body, and an external electrode having an electrode layer disposed on a side surface of the body and extending to be in contact with a side surface of the protrusion and a conductive resin layer disposed on the electrode layer and extending to cover a portion of the protrusion. 1. A multilayer electronic component comprising:a body including dielectric layers, and first and second internal electrode layers alternately stacked with respective dielectric layers interposed therebetween, and having first and second surfaces opposing each other in a stacking direction of the dielectric layers, third and fourth surfaces connected to the first and second surfaces and opposing each other in a length direction of the body, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a width direction of the body;a protrusion disposed on at least one of the first, second, fifth, and sixth surfaces and spaced apart from the third and fourth surfaces in the length direction;a first external electrode including a first electrode layer disposed on the third surface and extending to be in contact with a first side surface of the protrusion with respect to the length direction, the first external electrode further including a first conductive resin layer disposed on the first electrode layer and extending to cover a portion of the protrusion; anda second external electrode including a second electrode layer disposed on the fourth surface and extending to cover a second side surface of the protrusion with respect to the length direction, the second external electrode further including a second conductive resin layer disposed on the second electrode layer and extending to cover a portion of the protrusion.2. The multilayer electronic component of claim 1 , wherein the protrusion has a thickness ranging from 30 μm to 100 μm.3. The multilayer ...

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Номер записи: 69
17-03-2022 дата публикации

CERAMIC ELECTRONIC DEVICE AND MANUFACTURING METHOD OF THE SAME

Номер: US20220084752A1
Автор: Kato Yoichi
Принадлежит: TAIYO YUDEN CO., LTD.

A ceramic electronic device includes a multilayer structure having a parallelepiped shape in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked in a vertical direction, the plurality of internal electrode layers being alternately exposed to two end faces of the parallelepiped shape. A side margin section is a section covering edges of the plurality of internal electrode layers in an extension direction toward two side faces of the parallelepiped shape. The side margin section has a structure in which a plurality of dielectric layers, each containing a ceramic as a main component, and a plurality of conductive layers, each containing a metal as a main component, are alternately stacked in the vertical direction. The plurality of conductive layers are respectively spaced and separated from the plurality of internal electrode layers. 1. A ceramic electronic device comprising;a multilayer structure having a parallelepiped shape in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked in a vertical direction, the plurality of internal electrode layers being alternately exposed to two end faces of the parallelepiped shape, a main component of the plurality of dielectric layers being a ceramic,wherein a side margin section is a section covering edges of the plurality of internal electrode layers in an extension direction toward two side faces of the parallelepiped shape,wherein the side margin section has a structure in which a plurality of dielectric layers, each containing a ceramic as a main component, and a plurality of conductive layers, each containing a metal as a main component, are alternately stacked in the vertical direction, andwherein the plurality of conductive layers are respectively spaced and separated from the plurality of internal electrode layers.2. The ceramic electronic device as claimed in claim 1 ,wherein the plurality of conductive layers ...

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Номер записи: 70
17-03-2022 дата публикации

ELECTRONIC COMPONENT AND ELECTRONIC COMPONENT DEVICE

Номер: US20220084753A1
Автор: ITO Koki, Kaneko Hideki, ONODERA Shinya
Принадлежит: TDK Corporation

An element body includes a principal surface arranged to constitute a mounting surface and a first side surface adjacent to the principal surface. An external electrode includes a first electrode portion disposed on the principal surface and a second electrode portion disposed on the first side surface. The first electrode portion includes a sintered metal layer, a conductive resin layer formed on the sintered metal layer, and a plating layer formed on the conductive resin layer. The second electrode portion includes a first region and a second region. The first region includes a sintered metal layer and a plating layer formed on the sintered metal layer. The second region includes a sintered metal layer, a conductive resin layer formed on the sintered metal layer, and a plating layer formed on the conductive resin layer. The second region is located closer to the principal surface than the first region. 1. An electronic component comprising:an element body of a rectangular parallelepiped shape including a first principal surface arranged to constitute a mounting surface, a second principal surface opposing the first principal surface in a first direction, a pair of side surfaces opposing each other in a second direction, and a pair of end surfaces opposing each other in a third direction;a plurality of internal electrodes in the element body, the plurality of internal electrodes opposing each other in the second direction and each of the plurality of internal electrodes including one end exposed to a corresponding end surface of the pair of end surfaces; andexternal electrodes at both end portions of the element body in the third direction, each of the external electrodes being coupled to a corresponding internal electrode of the plurality of internal electrodes, whereinthe each of the external electrodes includes a conductive resin layer covering a portion of the corresponding end surface of the pair of end surfaces near the first principal surface, andthe each of ...

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Номер записи: 71
28-02-2019 дата публикации

CAPACITOR COMPONENT AND METHOD OF MANUFACTURING THE SAME

Номер: US20190066923A1
Автор: CHANG Ik Hwan, Cho Sung Hyun, Choi Jae Yeol, Joo Jin Kyung, JUNG Jin Man, Kwon Byeong Chan, NA Do Heung, Park Ji Hyun
Принадлежит:

A capacitor component includes a body including first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween to be exposed to the third and fourth surfaces of the body, respectively; first and second conductive layers covering the third and fourth surfaces and connected to the first and second internal electrodes, respectively; first and second insulating layers covering the first and second conductive layers, respectively; first and second band portions spaced apart from each other on the second surface of the body; first and second external electrodes covering a portion of the first and second band portions and the first insulating layer, respectively; and third and fourth external electrodes covering a portion of the first and second insulating layers and a portion of the first surface of the body, respectively; and a method of manufacturing the same. 1. A capacitor component comprising: first and second surfaces opposing each other and third and fourth surfaces connected to the first and second surfaces and opposing each other, and', 'a structure in which a plurality of dielectric layers are stacked and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween to be exposed to the third and fourth surfaces respectively;, 'a body includingfirst and second conductive layers covering the third and fourth surfaces respectively and connected to the first and second internal electrodes respectively;first and second insulating layers covering the first and second conductive layers respectively;first and second band portions spaced apart from each other on the second surface;a first external electrode covering a portion of the first band portion and the first insulating layer;a second external electrode covering a portion of the second band portion and the second insulating layer;a third external electrode covering a portion of the first insulating layer and ...

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Номер записи: 72
11-03-2021 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20210074478A1
Автор: CHA Berm Ha, JO Soo Kyong, KIM Hwi Dae, Lee Jong Ho
Принадлежит:

A multilayer ceramic capacitor include: a ceramic body including first and second surfaces opposing each other and third and fourth surfaces connecting the first and second surfaces; a plurality of internal electrodes disposed inside the ceramic body and exposed to the first and second surfaces, the plurality internal electrodes each having one end exposed to the third or fourth surface; and first and second side margin portions disposed on sides of the internal electrodes exposed to the first and second surfaces. A dielectric composition of the first and second side margin portions is different from a dielectric composition of the ceramic body, and a dielectric constant of the first and second side margin portions is lower than a dielectric constant of the ceramic body. 1. A multilayer ceramic capacitor comprising:a ceramic body including first and second surfaces opposing each other and third and fourth surfaces connecting the first and second surfaces;a plurality of internal electrodes disposed inside the ceramic body and exposed to the first and second surfaces, the plurality of internal electrodes each having one end exposed to the third or fourth surface; andfirst and second side margin portions disposed on sides of the internal electrodes exposed to the first and second surfaces, wherein:the first and second side margin portions and the ceramic body include a base material main component including barium (Ba) and titanium (Ti) and a subcomponent,a dielectric composition of the first and second side margin portions is different from a dielectric composition of the ceramic body,wherein the first and second side margin portions comprise at least one of sodium (Na) and lithium (Li) as a subcomponent, andwherein a content of manganese (Mn) included in the first and second side margin portions is higher than a content of manganese (Mn) included in the ceramic body,2. The multilayer ceramic capacitor of claim 1 , wherein the first and second side margin portions and ...

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Номер записи: 73
11-03-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20210074481A1
Автор: CHOI Chang Hak, KANG Byung Woo, Kang Hae Sol, Kim Jung Min, Koo Bon Seok, Kyeong San, LEE Il Ro, YI Jae Seok
Принадлежит:

A multilayer electronic component has a body and a non-conductive resin layer. The non-conductive resin layer includes a body cover portion disposed in a region of an external surface of the body in which an electrode layer of an external electrode is not disposed, and an extending portion extending from the body cover portion between the electrode layer and a conductive resin layer of the external electrode, to thereby suppress arc discharge, improve bending strength, and improve moisture resistance. 1. A multilayer electronic component comprising:a body including dielectric layers, and first internal electrodes and second internal electrodes alternately laminated with respective dielectric layers interposed therebetween, and having first and second surfaces opposing each other in a lamination direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other;a first external electrode including a first electrode layer connected to the first internal electrodes and a first conductive resin layer disposed on the first electrode layer, and having a first connection portion disposed on the third surface of the body and a first band portion extending from the first connection portion to a portion of each of the first, second, fifth, and sixth surfaces;a second external electrode including a second electrode layer connected to the second internal electrodes and a second conductive resin layer disposed on the second electrode layer, and having a second connection portion disposed on the fourth surface of the body and a second band portion extending from the second connection portion to a portion of each of the first, second, fifth, and sixth surfaces; anda non-conductive resin layer having a body cover portion disposed in a region of external surfaces of the body in which the first and second electrode layers are not disposed, a first ...

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Номер записи: 74
24-03-2022 дата публикации

Electronic component, circuit board, and method of mounting electronic component on circuit board

Номер: US20220093334A1
Автор: Eiji TERAOKA, Hirokazu Takashima
Принадлежит: Murata Manufacturing Co Ltd

An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.

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Номер записи: 75
24-03-2022 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME

Номер: US20220093339A1
Автор: KIM Jong Yun, Lee Eun Jung, Lim Ji Hyuk, Noh Jung Eun
Принадлежит:

A multilayer ceramic electronic component includes a ceramic body including a laminate body including first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, and fifth and sixth surfaces opposing each other in a third direction, and including a dielectric layer, and a first internal electrode and a second internal electrode stacked in the third direction with the dielectric layer interposed therebetween, a first and a second margin portion; a first connection portion and a second connection portion. The first connection portion includes a first lead electrode connected to the first internal electrode, and the second connection portion includes a second lead electrode connected to the second internal electrode. 1. A multilayer ceramic electronic component comprising:a ceramic body including a laminate body including first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, and fifth and sixth surfaces opposing each other in a third direction, and including a dielectric layer, and a first internal electrode and a second internal electrode stacked in the third direction with the dielectric layer interposed therebetween, a first margin portion disposed on the third surface of the laminate body, and a second margin portion disposed on the fourth surface of the laminate body;a first connection portion disposed on the first surface of the laminate body; anda second connection portion disposed on the second surface of the laminate body,wherein the first connection portion includes a first lead electrode connected to the first internal electrode and a first ceramic layer disposed on the first lead electrode,the second connection portion includes a second lead electrode connected to the second internal electrode and a second ceramic layer disposed on the second lead electrode, andthe first lead electrode is led out to ...

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Номер записи: 76
24-03-2022 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20220093340A1
Автор: MATSUI Togo, NISHIMURA Yukito
Принадлежит:

A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrodes alternately laminated therein, and external electrodes respectively on a first end surface and a second end surface of the multilayer body in a length direction intersecting a lamination direction. The internal electrodes each include an opposing portion, a thick portion extending from the opposing portion to one of the first end surface or the second end surface and coupled to one of the external electrodes, and is thicker than the opposing portion in the lamination direction, and a thin portion extending from the opposing portion to another of the first end surface or the second end surface and uncoupled with the external electrodes, and is thinner than the opposing portion in the lamination direction. 1. A multilayer ceramic capacitor comprising:a multilayer body including dielectric layers and internal electrodes alternately laminated therein; andexternal electrodes respectively on a first end surface and a second end surface, which are respectively on both ends of the multilayer body in a length direction intersecting a lamination direction; wherein an opposing portion;', 'a thick portion extending from the opposing portion to one of the first end surface or the second end surface and coupled to one of the external electrodes, and is thicker than the opposing portion in the lamination direction; and', 'a thin portion extending from the opposing portion to another of the first end surface or the second end surface and uncoupled with the external electrodes, and is thinner than the opposing portion in the lamination direction., 'each of the internal electrodes includes2. The multilayer ceramic capacitor according to claim 1 , wherein claim 1 , in adjacent internal electrodes in the lamination direction claim 1 , the thin portion of one of the adjacent internal electrodes is opposed to the thick portion of another one of the adjacent internal electrodes.3. ...

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Номер записи: 77
05-03-2020 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20200075243A1
Автор: LEE Jang Yeol, Lee Jong Ho, PARK Myung Jun
Принадлежит:

A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and a plurality of internal electrodes disposed to face each other with each of the dielectric layers interposed therebetween; and external electrodes disposed on external surfaces of the ceramic body and electrically connected to the internal electrodes, respectively, in which the external electrode each include an electrode layer electrically connected to the internal electrodes and a plating layer disposed on the electrode layer, and a thickness of the electrode layer in a cross section of the ceramic body in first and second directions is μm or more. 1. A multilayer ceramic electronic component comprising:a ceramic body including dielectric layers and a plurality of internal electrodes disposed to face each other with each of the dielectric layers interposed therebetween, and having first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction and connected to the first and second surfaces, and fifth and sixth surfaces opposing each other in a third direction and connected to the first to fourth surfaces; andexternal electrodes disposed on the third and fourth surfaces of the ceramic body in the second direction and electrically connected to the plurality of internal electrodes, respectively,wherein the ceramic body includes an active portion in which capacitance is formed by including the plurality of internal electrodes and cover portions disposed on upper and lower surfaces of the active portion, respectively,wherein a distance from the first surface of the ceramic body to an uppermost layer of the plurality of internal electrodes, or a distance from the second surface of the ceramic body to a lowermost layer of the plurality of internal electrodes, is 20 μm or less,wherein the external electrodes each include an electrode layer electrically connected to the plurality of internal electrodes ...

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Номер записи: 78
18-03-2021 дата публикации

Multilayer electronic component

Номер: US20210082620A1
Автор: Sun Cheol Lee
Принадлежит: Samsung Electro Mechanics Co Ltd

A multilayer electronic component includes a body comprising dielectric layers, and first and second internal electrode layers alternately stacked in a stacking direction with respective dielectric layers interposed therebetween. The first internal electrode layer includes first and second internal electrodes arranged with a first spacer interposed therebetween, and the second internal electrode layer includes third and fourth internal electrodes arranged with a second spacer interposed therebetween.

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Номер записи: 79
18-03-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20210082624A1
Автор: Kim Do Yeon
Принадлежит:

A multilayer electronic component includes a body including dielectric layers and a capacitance forming portion and upper and lower cover portions respectively disposed on and below the capacitance forming portion, and including first and second surfaces opposing each other in a layering direction, an external electrode disposed on the third or fourth surface, connected to the first or second internal electrode, and including an electrode layer extending to a portion of each of the first and second surfaces and a conductive resin layer covering the electrode layer. Tp/Rmax is 30 or higher, in which Rmax is defined as a maximum surface roughness of each of the first and second surfaces on an end of the conductive resin layer, and Tp is defined as a thickness of each of the upper and lower cover portions. 1. A multilayer electronic component , comprising:a body including dielectric layers and a capacitance forming portion including first and second internal electrodes alternately layered in a layering direction with a respective one of the dielectric layers interposed therebetween and upper and lower cover portions respectively disposed on and below the capacitance forming portion, the body including first and second surfaces opposing each other in the layering direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other;a first external electrode disposed on the third surface, connected to the first internal electrode, and including a first electrode layer extending to a portion of each of the first, second, fifth, and sixth surfaces and a first conductive resin layer covering the first electrode layer; anda second external electrode disposed on the fourth surface, connected to the second internal electrode, and including a second electrode layer extending to a portion of each of the first, second, fifth, and sixth surfaces and a ...

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Номер записи: 80
23-03-2017 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20170084392A1
Автор: An Sung Yong, CHOI Kang Ryong, KIM Jae Yeong, Li Yong Hui, Moon Byeong Cheol, YEO Jeong Gu
Принадлежит:

A multilayer ceramic capacitor includes an active region including a plurality of dielectric layers, and first and second internal electrodes alternately disposed with each of the dielectric layers interposed therebetween; and upper and lower cover regions including at least one ferromagnetic layer and disposed on and below the active region, respectively. 1. A multilayer ceramic capacitor comprising:an active region including a plurality of dielectric layers, and first and second internal electrodes alternately disposed with one of the dielectric layers interposed therebetween; andupper and lower cover regions including at least one ferromagnetic layer and disposed on and below the active region, respectively.2. The multilayer ceramic capacitor of claim 1 , further comprising third and fourth internal electrodes alternately disposed in at least one of the upper and lower cover regions with one of the ferromagnetic layers interposed therebetween.3. The multilayer ceramic capacitor of claim 1 , further comprising first and second external electrodes disposed on a body including the active region and the upper and lower cover regions to be electrically connected to the first and second internal electrodes claim 1 , respectively.4. The multilayer ceramic capacitor of claim 1 , wherein the dielectric layer contains at least one of BaTiO claim 1 , CaTiO claim 1 , SrTiO claim 1 , CaCuTiO claim 1 , SrFeMoO claim 1 , (LaCa)MnO claim 1 , (LaSr)MnO claim 1 , (LaBa)MnO claim 1 , (PrCa)MnO claim 1 , SrNbO claim 1 , LaMnO claim 1 , BiMnO claim 1 , YMnO claim 1 , TbMnO claim 1 , BiNiMnO claim 1 , LaFeCrO claim 1 , BiFeCrO claim 1 , CuCrSe claim 1 , CdCrSe claim 1 , CdCrS claim 1 , LaNiMnO claim 1 , and BiNiMnO.5. The multilayer ceramic capacitor of claim 1 , wherein the ferromagnetic layer contains at least one of Fe claim 1 , Co claim 1 , Ni claim 1 , FePt claim 1 , CoPt claim 1 , FeCoNi claim 1 , NdFeB claim 1 , BaFeO claim 1 , SrFeO claim 1 , SmCo claim 1 , and SmFe.6. The ...

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Номер записи: 81
23-03-2017 дата публикации

CAPACITOR STRUCTURE WITH ACOUSTIC NOISE SELF-CANCELING CHARACTERISTICS

Номер: US20170084395A1
Автор: Arnold Shawn X., Martinez Paul A., Sauers Jason C.
Принадлежит:

This application relates to capacitors that resist deformation because of the configuration of their conductive and dielectric layers. The capacitors are multilayer capacitors that include multiple dielectric and conductive layers. The dielectric layers can be arranged in a way that creates a rigid barrier or dead zone, which can resist mechanical deformation when the multilayer capacitor is charged. In some embodiments, two or more multilayer capacitors are stacked together in an arrangement that causes each of the multilayer capacitors to cancel any deformations of the other when the multilayer capacitors are charged. In this way, noise exhibited by the multilayer capacitors can be reduced. 1. A multilayer capacitor , comprising:conductive layers connected to terminals of the multilayer capacitor; anddielectric layers disposed between adjacent conductive layers, wherein a portion of the dielectric layers forms a dielectric barrier that extends through the conductive layers and resists deformation of the multilayer capacitor caused by the multilayer capacitor receiving a charge.2. The multilayer capacitor of claim 1 , wherein the conductive layers are monolithically bonded to corresponding adjacent dielectric layers.3. The multilayer capacitor of claim 1 , wherein the dielectric barrier is cross shaped.4. The multilayer capacitor of claim 1 , wherein the dielectric layers include barium or titanium.5. The multilayer capacitor of claim 1 , wherein the terminals include a first terminal and a second terminal claim 1 , and the conductive layers are connected to the first terminal in an arrangement that is different than a connection of the conductive layers to the second terminal.6. The multilayer capacitor of claim 1 , wherein the dielectric barrier extends from an edge of at least one of the conductive layers to a region between the terminals.7. The multilayer capacitor of claim 1 , wherein the dielectric barrier defines a wall that bisects at least two adjacent ...

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Номер записи: 82
31-03-2022 дата публикации

Multilayer ceramic capacitor

Номер: US20220102075A1
Автор: Akito Mori, Keita KITAHARA, Masahiro Wakashima, Noriyuki Ookawa, Riyousuke AKAZAWA, Takefumi Takahashi, Yuta KUROSU, Yuta Saito
Принадлежит: Murata Manufacturing Co Ltd

A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers alternately laminated therein, base electrode layers respectively provided on both end surfaces of the multilayer body in a length direction intersecting a lamination direction, and each connected to the internal electrode layers and each including glass and copper, and plated layers respectively provided on an outer side of the base electrode layers. A protective layer including sulfur is provided between the glass included in the base electrode layers and the plated layers.

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Номер записи: 83
31-03-2022 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20220102077A1
Автор: AKAZAWA Riyousuke, KITAHARA Keita, KUROSU Yuta, MORI Akito, OOKAWA Noriyuki, Saito Yuta, TAKAHASHI Takefumi, WAKASHIMA Masahiro
Принадлежит:

In a multilayer ceramic capacitor, a positional deviation in a lamination direction between end portions in a width direction intersecting the lamination direction and a length direction, of two of internal electrode layers adjacent to each other in the lamination direction, is about 5 μm or less. A connection ratio N1/N0 at the middle portion thereof, and a connection ratio N2/N0 at the end portion thereof are about 90% or more, respectively, and a difference between N1/N0 and N2/N0 is about 10% or less. 1. A multilayer ceramic capacitor comprising:a multilayer body including dielectric layers and internal electrode layers alternately laminated therein; andexternal electrodes respectively provided on both end surfaces of the multilayer body in a length direction intersecting a lamination direction, and each connected to the internal electrode layers; whereina positional deviation in the lamination direction between end portions in a width direction intersecting the lamination direction and the length direction, of two of the internal electrode layers adjacent to each other in the lamination direction, is about 5 μm or less; andwhen a number of all of the internal electrode layers extending to one of the external electrodes is defined as N0, a number of the internal electrode layers connected to the one of the external electrodes in a cross-section extending in the length direction and the lamination direction and passing through a middle portion thereof in the width direction is defined as N1, and a number of the internal electrode layers connected to the one of the external electrodes in a cross-section extending in the length direction and the lamination direction and passing through an end portion thereof in the width direction is defined as N2:a connection ratio N1/N0 at the middle portion thereof, and a connection ratio N2/N0 at the end portion thereof are about 90% or more, respectively; anda difference between the connection ratio N1/N0 and the connection ...

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Номер записи: 84
31-03-2022 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20220102078A1
Автор: AKAZAWA Riyousuke, KITAHARA Keita, KUROSU Yuta, MORI Akito, OOKAWA Noriyuki, Saito Yuta, TAKAHASHI Takefumi, WAKASHIMA Masahiro
Принадлежит:

A multilayer ceramic capacitor includes a multilayer body including an inner layer portion including dielectric layers and internal electrode layers alternately laminated therein, two outer layer portions respectively provided on both sides of the inner layer portion in a lamination direction, and two side gap portions respectively provided on both side surfaces of the inner layer portion and the outer layer portions, in a width direction intersecting the lamination direction, and external electrodes respectively provided on both end surfaces of the multilayer body in a length direction intersecting the lamination direction and the width direction, and each connected to the internal electrode layers, wherein nickel and magnesium are segregated between the side gap portions and the outer layer portions. 1. A multilayer ceramic capacitor comprising:{'claim-text': ['an inner layer portion including dielectric layers and internal electrode layers alternately laminated therein;', 'two outer layer portions respectively provided on both sides of the inner layer portion in a lamination direction; and', 'two side gap portions respectively provided on both side surfaces of the inner layer portion and the outer layer portions, in a width direction intersecting the lamination direction; and', 'external electrodes respectively provided on both end surfaces of the multilayer body in a length direction intersecting the lamination direction and the width direction, and each connected to the internal electrode layers; wherein'], '#text': 'a multilayer body including:'}nickel and magnesium are segregated between the side gap portions and the outer layer portions.2. The multilayer ceramic capacitor according to claim 1 , wherein nickel is segregated in the outer layer portions.3. The multilayer ceramic capacitor according to claim 1 , wherein magnesium is segregated in both side portions of the internal electrode layers in the width direction.4. The multilayer ceramic capacitor ...

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Номер записи: 85
31-03-2022 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20220102079A1
Автор: AKAZAWA Riyousuke, KITAHARA Keita, KUROSU Yuta, MORI Akito, OOKAWA Noriyuki, Saito Yuta, TAKAHASHI Takefumi, WAKASHIMA Masahiro
Принадлежит:

A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers alternately laminated therein, and external electrode layers respectively provided on both end surfaces of the multilayer body in a length direction intersecting a lamination direction, and each connected to the internal electrode layers, the external electrode layers each further including a base electrode layer including a first region, a second region, and a third region divided therein, in order from the multilayer body. The first region includes a metal included in the internal electrode layers in a higher amount than the second region and the third region, the second region includes glass in a higher amount than the first region and the third region, and the third region includes copper in a higher amount than the first region and the second region. 1. A multilayer ceramic capacitor comprising:a multilayer body including dielectric layers and internal electrode layers alternately laminated therein; andexternal electrode layers respectively provided on both end surfaces of the multilayer body in a length direction intersecting a lamination direction, and each connected to the internal electrode layers, the external electrode layers each further including a base electrode layer including a first region, a second region, and a third region divided therein, in order from the multilayer body; whereinthe first region includes a metal included in the internal electrode layers in a higher amount than the second region and the third region;the second region includes glass in a higher amount than the first region and the third region; andthe third region includes copper in a higher amount than the first region and the second region.2. The multilayer ceramic capacitor according to claim 1 , wherein the metal of the internal electrode layers is included in a higher density on a side in a vicinity of the internal electrode layers of one of the external ...

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Номер записи: 86
31-03-2022 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20220102080A1
Автор: CHOI Jea Yeol, Joo Jin Kyung, JUNG Jin Man, LEE Min Gon, Lee Taek Jung
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A multilayer ceramic capacitor includes a body including a dielectric layer and first and second internal electrodes disposed with the dielectric layer interposed therebetween and disposed in point-symmetry with each other; first and second connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the first internal electrode; third and fourth connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the second internal electrode; first and second external electrodes disposed on both surfaces of the body and connected to the first and second connection electrodes; and third and fourth external electrodes spaced apart from the first and second external electrodes and connected to the third and fourth connection electrodes, and the first and second internal electrodes include a region in which an electrode is not disposed. 1. A multilayer ceramic capacitor , comprising:a body including a dielectric layer and first and second internal electrodes disposed with the dielectric layer interposed therebetween in a stacking direction and disposed in point-symmetry with each other;first and second connection electrodes penetrating the body in the stacking direction and connected to the first internal electrode;third and fourth connection electrodes penetrating the body in the stacking direction and connected to the second internal electrode;first and second external electrodes disposed on both surfaces of the body opposing each other in the stacking direction and connected to the first and second connection electrodes; andthird and fourth external electrodes spaced apart from the first and second external electrodes and connected to the third and fourth connection electrodes,wherein at least one of the first, second, third or fourth external electrodes has a length in a direction perpendicular to the stacking direction which is greater than a maximum length of at least ...

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Номер записи: 87
25-03-2021 дата публикации

MULTILAYER ELECTRONIC COMPONENT

Номер: US20210090806A1
Автор: JO Ji Hong, LEE Jae Hyun, PARK Chae Min, SEUNG Hyun Woo, Shin Woo Chul, SHIN Woong
Принадлежит:

A multilayer electronic component includes a body including dielectric layers and first and second internal electrodes alternately laminated with respective dielectric layers interposed therebetween, and first and second surfaces opposing each other in a direction by which the internal electrodes are laminated, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other; a moisture-proof layer disposed on at least one surface of anyone of the first, second, fifth, or sixth surface and containing a rare-earth oxide; a first external electrode disposed on the third surface and connected to the first internal electrodes; and a second external electrode disposed on the fourth surface and connected to the second internal electrodes. 1. A multilayer electronic component , comprising:a body comprising dielectric layers and first and second internal electrodes alternately laminated with respective dielectric layers interposed therebetween, and first and second surfaces opposing each other in a direction by which the first and second internal electrodes are laminated, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other;a moisture-proof layer disposed on at least one surface of any one of the first, second, fifth or sixth surface and comprising a rare-earth oxide;a first external electrode disposed on the third surface and connected to the first internal electrodes; anda second external electrode disposed on the fourth surface and connected to the second internal electrodes.2. The multilayer electronic component of claim 1 , wherein the rare-earth oxide is at least one selected from dysprosium oxide (DyO) claim 1 , cesium oxide (CeO) claim 1 , praseodymium oxide (PrO) claim 1 , neodymium oxide (NdO) claim 1 , ...

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Номер записи: 88
05-05-2022 дата публикации

CERAMIC ELECTRONIC DEVICE AND MANUFACTURING METHOD OF THE SAME

Номер: US20220139630A1
Автор: Kato Yoichi, MASUDA Hidetoshi, MIZUNO Kotaro, YAMADA Kazuki
Принадлежит:

A ceramic electronic device includes a multilayer chip in which a plurality of dielectric layers of which a main component is ceramic and a plurality of internal electrode layers are stacked. The plurality of internal electrode layers include Ni, Sn and Au.

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Номер записи: 89
05-05-2022 дата публикации

MULTILAYER CAPACITOR

Номер: US20220139632A1
Автор: CHOI Ho Sam, JEONG Jong Suk, KANG Sim Chung, Kim Jin Woo, Kim Tae Hyung, Lee Eun Jung, Seo Chun Hee, YOO Jong Hoon
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A multilayer capacitor includes a body including a plurality of dielectric layers and a plurality of internal electrodes stacked in a first direction, and external electrodes, wherein the body includes an active portion, a side margin portion covering at least one of a first surface and a second surface of the active portion opposing each other in a second direction, and a cover portion covering the active portion in the first direction, respective dielectric layers among the plurality of dielectric layers include a barium titanate-based composition, the dielectric layer of the side margin portion includes Sn, and a content of Sn in the dielectric layer of the side margin portion is different from that of Sn in the dielectric layer of the active portion, and the dielectric layer of the side margin portion includes at least some grains having a core-shell structure.

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Номер записи: 90
07-04-2016 дата публикации

CONDUCTIVE PASTE FOR EXTERNAL ELECTRODE, MULTILAYER CERAMIC ELECTRONIC COMPONENT USING THE SAME, AND MANUFACTURING METHOD THEREOF

Номер: US20160099110A1
Автор: CHOI Chang Hak, Kim Jin Woo, LEE Chi Hwa, PARK Kum Jin, YOUN Sang Min
Принадлежит:

A conductive paste for an external electrode, a multilayer ceramic electronic component using the same, and a manufacturing method of a multilayer ceramic electronic component are provided. The conductive paste for an external electrode includes first conductive particles containing a metal, second conductive particles formed of ceramic particles coated with silver (Ag), and a thermosetting resin. 1. A conductive paste for an external electrode comprising:first conductive particles containing a metal;second conductive particles formed of ceramic particles coated with silver (Ag); anda thermosetting resin.2. The conductive paste for an external electrode of claim 1 , wherein the ceramic particles are formed of Tio.3. The conductive paste for an external electrode of claim 1 , wherein the ceramic particles have an average particle size of 0.003 μm to 2.0 μm.4. The conductive paste for an external electrode of claim 1 , wherein shapes of the ceramic particles are one or more of a spherical shape claim 1 , a rod shape claim 1 , and a tube shape.5. The conductive paste for an external electrode of claim 1 , wherein a coating content of the silver (Ag) is 1 to 30 wt % based on a content of the ceramic particles.6. The conductive paste for an external electrode of claim 1 , wherein contents of the second conductive particles and the thermosetting resin are 0.5 to 10 parts by weight and 5 to 30 parts by weight claim 1 , respectively claim 1 , based on 100 parts by weight of the first conductive particles.7. The conductive paste for an external electrode of claim 1 , wherein the first conductive particles are formed of one or more selected from the group consisting of copper (Cu) claim 1 , nickel (Ni) claim 1 , silver (Ag) claim 1 , and silver-palladium (Ag—Pd).8. A multilayer ceramic electronic component comprising:a ceramic body including dielectric layers;first and second internal electrodes disposed in the ceramic body to face each other with respective dielectric layers ...

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Номер записи: 91
01-04-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20210098193A1
Автор: MISHIMA Yasuhiro
Принадлежит:

A multilayer ceramic electronic component includes a stacked body and external electrodes provided on two end surfaces of the stacked body. Each external electrode includes an underlying electrode layer including a conductive metal, a resin electrode layer including a resin and metal component, a resin layer including a resin and no metal component, and a metal layer. The underlying electrode layers extend from the two end surfaces to cover a portion of two main surfaces and two lateral surfaces. The resin electrode layers cover the underlying electrode layers provided on the two end surfaces. The resin layers are connected to the resin electrode layers and provided on the underlying electrode layers located on a portion of the two main surfaces and two lateral surfaces. The metal layers cover the surfaces of the resin electrode layers and resin layers. 1. A multilayer ceramic electronic component comprising: a plurality of ceramic layers and a plurality of internal electrode layers which are stacked;', 'a first main surface and a second main surface opposite to each other in a stacking direction;', 'a first end surface and a second end surface opposite to each other in a length direction orthogonal or substantially orthogonal to the stacking direction; and', 'a first lateral surface and a second lateral surface opposite to each other in a width direction orthogonal or substantially orthogonal to the stacking direction and the length direction;, 'a stacked body includinga first external electrode provided on the first end surface; anda second external electrode provided on the second end surface; wherein a first underlying electrode layer including a conductive metal;', 'a first resin electrode layer including a resin and metal component;', 'a first resin layer including a resin and no metal component; and', 'a first metal layer including plating;, 'the first external electrode includes a second underlying electrode layer including a conductive metal;', 'a second ...

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Номер записи: 92
01-04-2021 дата публикации

METHOD FOR MANUFACTURING MULTILAYER CERAMIC ELECTRONIC COMPONENT, AND MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20210098195A1
Автор: Otani Shinji, TANAKA Hidehiko
Принадлежит:

A method for manufacturing a multilayer ceramic electronic component includes preparing a ceramic green sheet, forming a plurality of internal electrode patterns on a main surface of the ceramic green sheet, applying a ceramic paste above the main surface of the ceramic green sheet, stacking a plurality of the ceramic green sheets, pressing the plurality of stacked ceramic green sheets, and cutting the plurality of pressed ceramic green sheets. The ceramic paste at least partially overlaps end portions of the internal electrode patterns, and a stepped region is provided on the ceramic green sheet. When cutting the ceramic green sheets in a first direction, the cutting is performed at a position of the stepped region between two of the internal electrode patterns adjacent to each other in a second direction. 1. A method for manufacturing a multilayer ceramic electronic component , the method comprising:preparing a ceramic green sheet;forming a plurality of internal electrode patterns on a main surface of the ceramic green sheet;applying a ceramic paste above the main surface of the ceramic green sheet;stacking a plurality of the ceramic green sheets on which the internal electrode patterns have been formed and to which the ceramic paste has been applied;pressing the plurality of stacked ceramic green sheets; andcutting the plurality of pressed ceramic green sheets, whereinthe forming of the plurality of internal electrode patterns and the applying of the ceramic paste are performed such that the ceramic paste at least partially overlaps end portions of the plurality of internal electrode patterns, and a stepped region, in which the plurality of internal electrode patterns are not formed and to which the ceramic paste is not applied, is provided on the main surface of the ceramic green sheet; andin the cutting of the plurality of ceramic green sheets, when cutting the plurality of ceramic green sheets in a first direction, the cutting is performed at a position of the ...

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Номер записи: 93
12-05-2022 дата публикации

MULTILAYER CAPACITOR AND BOARD HAVING THE SAME

Номер: US20220148813A1
Автор: LEE Seung Jun, LEE Su Hyoung
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A multilayer capacitor includes: a capacitor body including dielectric layers and first and second internal electrodes, and having first to six surfaces; first and second side portions disposed on the fifth and sixth surfaces of the capacitor body, respectively, and having roughnesses on surfaces thereof; a first external electrode disposed on the third surface of the capacitor body and parts of the first and second side portions and connected to the first internal electrodes; and a second external electrode disposed on the fourth surface of the capacitor body and parts of the first and second side portions and connected to the second internal electrodes. 1. A multilayer capacitor comprising:a capacitor body including dielectric layers and first and second internal electrodes, and having first and second surfaces opposing each other, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first and second surfaces, connected to the third and fourth surfaces, and opposing each other;first and second side portions disposed on the fifth and sixth surfaces of the capacitor body, respectively, and having roughnesses on surfaces thereof; anda first external electrode disposed on the third surface of the capacitor body and parts of the first and second side portions and connected to the first internal electrodes, and a second external electrode disposed on the fourth surface of the capacitor body and parts of the first and second side portions and connected to the second internal electrodes.2. The multilayer capacitor of claim 1 , wherein the first and second side portions have the roughnesses on surfaces thereof in contact with the first and second external electrodes claim 1 , respectively.3. The multilayer capacitor of claim 1 , wherein the first and second side portions have the roughnesses on portions thereof in contact with the first and second external electrodes claim 1 , ...

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Номер записи: 94
12-05-2022 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20220148814A1
Автор: ITOGAWA Masaki
Принадлежит:

A multilayer ceramic capacitor includes first and second external electrodes, each including a Ni-plated layer and a Sn-plated layer on the Ni-plated layer. The Sn-plated layer includes an intermetallic compound that penetrates the Sn-plated layer in a thickness direction, and allows hydrogen to pass therethrough more easily than Sn. 1. A multilayer ceramic capacitor comprising:a multilayer body including a plurality of laminated dielectric layers, a first main surface and a second main surface opposing each other in a height direction, a first side surface and a second side surface opposing each other in a width direction perpendicular or substantially perpendicular to the height direction, and a first end surface and a second end surface opposing each other in a length direction perpendicular or substantially perpendicular to the height direction and the width direction;first internal electrode layers on the plurality of dielectric layers and exposed at the first end surface;second internal electrode layers on the plurality of dielectric layers and exposed at the second end surface;a first external electrode connected to the first internal electrode layers and provided on the first end surface; anda second external electrode connected to the second internal electrode layers and provided on the second end surface; whereinthe first external electrode and the second external electrode each include a Ni-plated layer and a Sn-plated layer on the Ni-plated layer; andthe Sn-plated layer includes an intermetallic compound that penetrates through the Sn-plated layer in a thickness direction and allows hydrogen to pass therethrough more easily than Sn.2. The multilayer ceramic capacitor according to claim 1 ,wherein the first external electrode and the second external electrode each include a base electrode layer between the multilayer body and the Ni-plated layer.3. The multilayer ceramic capacitor according to claim 1 , wherein the intermetallic compound includes Ni and ...

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Номер записи: 95
28-03-2019 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20190096586A1
Автор: FUKUNAGA Daiki, MORIYAMA Koji, Tanaka Hideaki
Принадлежит:

A multilayer ceramic capacitor includes a laminated body and first and second external electrodes respectively on both end surfaces of the laminated body. When regions where first internal electrodes or second internal electrodes are not present are regarded as side margin portions in a cross section of the laminated body as viewed from the laminating direction, the side margin portions include multiple side margin layers, and the content of Si in the side margin layer closest to the internal electrode is lower than that in the side margin layer other than the side margin layer closest to the internal electrode. 1. A multilayer ceramic capacitor comprising:a laminated body including a plurality of dielectric layers and a plurality of internal electrodes; anda plurality of external electrodes electrically connected to the plurality of internal electrodes; whereinthe laminated body includes a first principal surface and a second principal surface opposed in a laminating direction, a first side surface and a second side surface opposed in a width direction perpendicular or substantially perpendicular to the laminating direction, and a first end surface and a second end surface opposed in a length direction perpendicular or substantially perpendicular to both the laminating direction and the width direction;the plurality of internal electrodes includes first internal electrodes exposed at the first end surface, and second internal electrodes exposed at the second end surface and opposed to the first internal electrodes with the dielectric layers interposed therebetween;the laminated body includes outer layer portions provided at a top and a bottom of the laminated body in the laminating direction, and an inner layer portion between the outer layer portions;the plurality of external electrodes includes a first external electrode covering the first end surface and electrically connected to the first internal electrodes, and a second external electrode covering the second ...

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Номер записи: 96
13-04-2017 дата публикации

DIELECTRIC MATERIAL AND ELECTRONIC COMPONENT

Номер: US20170101344A1
Автор: FURUUCHI Fumito, Hirahara Seiichirou, NAGAYOSHI Maiko, Ono Tomoyuki, SEKI Youji
Принадлежит: KYOCERA CORPORATION

A dielectric material having a rutile crystalline structure includes Ti as a major constituent metal element, and, as metal elements other than Ti, a metal element M1 which includes at least one selected from among Ni, Co, and elements belonging to Group 2 according to a periodic table, and a metal element M2 which includes at least one selected from among elements belonging to Group 5 and Group 6 in the periodic table, and, on a basis of a total amount of Ti, the metal element M1, and the metal element M2, a molar ratio x of the metal element M1 is in a range of 0.005 to 0.025 and a molar ratio y of the metal element M2 is in a range of 0.010 to 0.050. 1. A dielectric material having a rutile crystalline structure , comprising:Ti as a major constituent metal element; andas metal elements other than Ti, a metal element M1 which includes at least one selected from among Ni, Co, and elements belonging to Group 2 according to a periodic table, and a metal element M2 which includes at least one selected from among elements belonging to Group 5 and Group 6 in the periodic table,on a basis of a total amount of Ti, the metal element M1, and the metal element M2, a molar ratio x of the metal element M1 being in a range of 0.005 to 0.025 and a molar ratio y of the metal element M2 being in a range of 0.010 to 0.050.2. The dielectric material according to claim 1 ,wherein, in a cathode luminescence spectrum, an intensity I1 of a peak which appears at wavelengths ranging from 400 to 600 nm is greater than an intensity I2 of a peak which appears at wavelengths ranging from 700 to 1000 nm.3. The dielectric material according to claim 1 ,wherein the metal element M1 includes at least one of Mg, Ni, and Co, and the metal element M2 includes at least one of Nb and Ta.4. The dielectric material according to claim 1 ,wherein the metal element M1 is Ca, and the metal element M2 is W.5. The dielectric material according to claim 3 ,wherein the molar ratio x falls in a range of 0.008 to ...

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Номер записи: 97
04-04-2019 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20190100465A1
Автор: Kim Dong Hun, Nam Chan Hee, PARK Jung Deok, Yoon Seok Hyun
Принадлежит:

A multilayer ceramic capacitor includes: a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; and first and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively. In a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, and a thickness of the dielectric layer is 0.8 μm or less. 1. A multilayer ceramic capacitor comprising:a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; andfirst and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively,wherein when, in a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, anda thickness of the dielectric layer is 0.8 μm or less.2. The multilayer ceramic capacitor of claim 1 , wherein the dielectric layer is formed of a dielectric ceramic composition containing a barium titanate based base material main ingredient and an accessory ingredient claim 1 ,the accessory ingredient including:a first accessory ingredient containing one or more selected from the group consisting of oxides and carbonates of one or more variable-valence acceptor elements among Mn, V, Cr, Fe, Ni, Co, Cu, and Zn;a second accessory ingredient containing one or more of oxides and carbonates of fixed-valence acceptor elements including Mg;a third accessory ingredient containing one ...

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Номер записи: 98
03-07-2014 дата публикации

DIELECTRIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR USING THE SAME

Номер: US20140185183A1
Автор: KIM Chang Hoon, Kim Doo Young, LIM Jong Bong, Nam Chan Hee, Park Jae Sung, Yoon Seok Hyun
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

There is provided a multilayer ceramic capacitor, including: a ceramic body including dielectric layers; first and second internal electrodes disposed to face each other with the dielectric layer interposed therebetween within the ceramic body; a first external electrode electrically connected to the first internal electrodes; and a second external electrode electrically connected to the second internal electrodes, wherein the dielectric layer includes 40 to 99 wt % of barium titanate (BaTiO) powder having an average grain size of 0.1 μm to 0.8 μm and 1 to 60 wt % of barium titanate zirconate (Ba(TiZr)O) having an average grain size of 0.2 to 2.0 μm. 1. A multilayer ceramic capacitor , comprising:a ceramic body including dielectric layers;first and second internal electrodes disposed to face each other with the dielectric layer interposed therebetween within the ceramic body;a first external electrode electrically connected to the first internal electrodes; anda second external electrode electrically connected to the second internal electrodes,{'sub': 3', '1-x', 'x', '3, 'wherein the dielectric layer includes 40 to 99 wt % of barium titanate (BaTiO) having an average grain size of 0.1 μm to 0.8 μm and 1 to 60 wt % of barium titanate zirconate (Ba (TiZr)O) having an average grain size of 0.2 to 2.0 μm.'}2. The heat radiant paint composition of claim 1 , wherein the dielectric layer further includes at least one first subcomponent selected from the group consisting of manganese (Mn) claim 1 , vanadium (V) claim 1 , chrome (Cr) claim 1 , iron (Fe) claim 1 , nickel (Ni) claim 1 , cobalt (Co) claim 1 , copper (Cu) claim 1 , and zinc (Zn).3. The heat radiant paint composition of claim 2 , wherein the first subcomponent is included in a content of 0.1 to 1 part by weight based on 100 parts by weight of a barium titanate-based base material composed of barium titanate (BaTiO) and barium titanate zirconate (Ba(TiZr)O).4. The heat radiant paint composition of claim 1 , ...

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Номер записи: 99
08-04-2021 дата публикации

MULTILAYER CERAMIC CAPACITOR

Номер: US20210104364A1
Автор: OKUDA Hikaru
Принадлежит:

When internal electrode layers are viewed in a stacking direction, the internal electrode layers include an internal electrode main body portion defining an effective region, and an internal electrode lead-out portion that leads to a first or second end surface of a stacked body, and a length of the internal electrode lead-out portion in a width direction of the stacked body is less than or equal to about ½ of a length of the internal electrode main body portion. The internal electrode layer includes a first region having relatively high continuity of a conductive component defining the internal electrode layer, and a second region having relatively continuity of the conductive component. A central portion of the internal electrode main body portion is defined by the first region, and a portion of the internal electrode lead-out portion is defined by the second region. 1. A multilayer ceramic capacitor comprising:a stacked body including a plurality of dielectric layers and a plurality of internal electrode layers stacked alternately, and having a first main surface and a second main surface opposite to each other in a stacking direction, a first end surface and a second end surface opposite to each other in a length direction orthogonal or substantially orthogonal to the stacking direction, and a first side surface and a second side surface opposite to each other in a width direction orthogonal or substantially orthogonal to the stacking direction and the length direction; andexternal electrodes provided on the surfaces of the stacked body and electrically connected with the internal electrode layers; whereinthe dielectric layers have an average thickness of less than or equal to about 0.5 μm;when the internal electrode layers are viewed in plan view from the stacking direction, the internal electrode layers each include an internal electrode main body portion that defines and functions as an effective region, and an internal electrode lead-out portion that leads ...

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Номер записи: 100