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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 28. Отображено 28.
01-02-2016 дата публикации

BACK SHEET FOR LIGHT MODULE AND LIGHT MODULE INCLUDING SAME

Номер: KR1020160011478A
Автор: PARK, HYO SOON, KIM, HYUN CHEOL, KO, HYUN SEONG
Принадлежит:

The present invention provides a back sheet for a light module including a glass fiber layer and a light module including the same. The glass fiber layer comprises a glass fiber sheet and a fluorine based resin. According to the present invention, the back sheet has excellent flame retardancy by having resistance strong against a flame and has a good bonding force and a good insulation property. COPYRIGHT KIPO 2016 ...

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Номер записи: 1
06-07-2017 дата публикации

PHOTOVOLTAIC CELL MODULE

Номер: KR1020170077463A
Автор: LEE, JUNG YOUN, KIM, HYUN CHEOL, PARK, HYO SOON, JUNG, JE SIK
Принадлежит:

The present application relates to a photovoltaic module, a filler or uses thereof. The present application can provide a photovoltaic module having excellent durability and capable of stably maintaining durability even under prolonged exposure to severe conditions such as high-temperature conditions or ultraviolet irradiation conditions, etc., and a filler for manufacturing the same. The photovoltaic module includes a back sheet and a photovoltaic battery or a photovoltaic battery array protected by the filler between the back sheet and a receiving substrate. COPYRIGHT KIPO 2017 ...

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Номер записи: 2
17-05-2016 дата публикации

Manufacturing Method of Thermoelectric Film

Номер: KR0101621750B1
Автор: 전상기, 정수희, 이연근, 박효순, 최경수, 조정호, 신동목
Принадлежит: 주식회사 엘지화학

... 본 발명은 (1) 기재의 상면에 전극층을 형성하는 단계; (2) 상기 전극층의 상면에 베리어층을 형성하는 단계; (3) 상기 베리어층의 상면에 N형 열전소자층 또는 P형 열전소자층을 형성하는 단계; (4) 상기 열전소자층의 상면에, 최종적으로 목적하는 전극층, 베리어층 및 열전소자층의 적층 형상에 상응하는 패턴 및 두께를 가진 의사-형상층(pseudo-forming layer)를 형성하는 단계; (5) 상기 단계들에서 얻어진 적층체를 상면으로부터 의사-형상층이 완전히 제거될 때까지 식각하는 단계; 및 (6) 상기 단계들에서 제조된 N형 열전필름과 P형 열전필름을 상호 접합하여 열전필름을 제조하는 단계;로 이루어진 열전필름 제조방법을 제공한다.

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Номер записи: 3
14-04-2017 дата публикации

백시트

Номер: KR0101727366B1
Автор: 고현성, 김현철, 박효순, 강성욱
Принадлежит: 주식회사 엘지화학

... 본 출원은 백시트 및 이를 포함하는 광전지 모듈에 관한 것으로, 본 출원에 따른 백시트는 광전지 셀의 아래 부분에만 반사층을 포함하도록 하여 광전지 모듈 내로 유입되는 빛 중 가시광선 및 근적외선 영역의 파장의 빛을 상기 반사층에 의하여 반사시키고 상기 반사된 빛을 상기 광전지 셀에 재입사시킴으로써, 상기 광전지 모듈의 광전 변환 효율을 높일 수 있는 광전지 모듈을 제공할 수 있다.

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Номер записи: 4
25-01-2017 дата публикации

BACK SHEET AND METHOD FOR MANUFACTURING SAME

Номер: KR1020170009292A
Автор: PARK, HYO SOON, KIM, HYUN CHEOL
Принадлежит:

The present application relates to a back sheet, a method for manufacturing the same, and a photovoltaic module comprising the same. The present invention provides excellent reliability and adhesion force to heat-resistant and/or humidity-resistant conditions to provide a back sheet with improved weather resistance and durability. The back sheet can be applied to, for example, a photovoltaic module or the like. COPYRIGHT KIPO 2017 ...

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Номер записи: 5
11-03-2016 дата публикации

BACK SHEET

Номер: KR1020160028101A
Автор: KO, HYUN SEONG, KIM, HYUN CHEOL, PARK, HYO SOON, KANG, SEONG WOOK
Принадлежит:

The present invention relates to a back sheet and a photovoltaic cell module comprising the same. According to the present invention, the back sheet is configured to comprise a reflective layer only on a lower portion of a photovoltaic cell to reflect light, having wavelength ranges close to visible light and near infrared, through the reflective layer among light entering the photovoltaic cell module and make the photovoltaic cell receive the reflected re-incident light in order to improve photoelectric conversion efficiency of the photovoltaic cell module. The back sheet comprises: a multi-layered body including a substrate layer and the reflective layer formed on at least one surface of the substrate layer; and a black pattern layer formed to be spaced apart from a portion of a surface of the multi-layered body. COPYRIGHT KIPO 2016 ...

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Номер записи: 6
10-07-2017 дата публикации

BLACK BACK SHEET FOR SOLAR CELL, SOLAR CELL MODULE COMPRISING SAME AND MANUFACTURING METHOD THEREOF

Номер: KR1020170079951A
Автор: PARK, HYO SOON, KIM, HYUN CHEOL, KANG, SEONG WOOK, KO, HYUN SEONG, LEE, JUNG YOUN, JUNG, JE SIK
Принадлежит:

The present invention relates to a black back sheet for a solar cell, a solar cell module including the same, and a manufacturing method thereof. The black back sheet is an encapsulant integral type and comprises a substrate; an infrared reflecting black pigment layer formed on the substrate; and an encapsulant layer formed on the infrared reflecting black pigment layer. The present application also provides a solar cell module including the black back sheet and a method of manufacturing the same. According to the present application, the energy efficiency of the solar cell module can be improved and the productivity can be increased. COPYRIGHT KIPO 2017 ...

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Номер записи: 7
07-05-2015 дата публикации

ROPE CONNECTING APPARATUS FOR INDUSTRIAL SAFETY CONNECTION RING

Номер: WO2015064872A1
Автор: PARK, Hyo-Sun
Принадлежит:

A rope connecting apparatus for an industrial safety connection ring according to the present invention disclosed herein comprises: a rope support connected to a supporting device of a working site in a detachable manner to allow a rope to be supported at a predetermined height; and a ring connection plate placed on an upper side of an inner circumference side of the rope supported by the rope support to allow the rope support to pass through a rear side of a main body which is opened at a predetermined height while the rope support slides along the rope, wherein a connection ring is connected to a ring holder formed at a front side.

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Номер записи: 8
19-10-2016 дата публикации

BACK SHEET FOR PHOTOVOLTAIC MODULES

Номер: KR1020160120949A
Автор: KANG, SEONG WOOK, KIM, HYUN CHEOL, KO, HYUN SEONG, PARK, HYO SOON
Принадлежит:

The present invention provides a back sheet for photovoltaic modules, and a photovoltaic module including the same. The back sheet for photovoltaic modules comprises a first resin layer including a first and a second wavelength conversion material; and a second resin layer for reflecting equal to or more than 40% of light in a wavelength range of 400 to 1200 nm. Therefore, the back sheet for photovoltaic modules of the present invention is capable of increasing a visible ray reflection rate in a direction of a photovoltaic cell, and absorbing light having a wavelength of an area having low reactivity, from reflected light so as to re-discharge the absorbed light as light having a wavelength of an area having high reactivity. Since the strength of discharging the light of an area having high reactivity is high by generally increasing the degree of converting the wavelength, the back sheet for photovoltaic modules has excellent effects of improving weather resistance of the photovoltaic modules ...

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Номер записи: 9
18-10-2016 дата публикации

BACK SHEET FOR PHOTOVOLTAIC MODULE

Номер: KR1020160120483A
Автор: KANG, SEONG WOOK, KIM, HYUN CHEOL, PARK, HYO SOON, KO, HYUN SEONG
Принадлежит:

Provided are a back sheet for a photovoltaic module and a photovoltaic module comprising the same. The back sheet for a photovoltaic module comprises: a first resin layer including a wavelength conversion material; and a second resin layer of which a reflection rate with respect to a light of a wavelength range of 400 to 1200 nm is 40% or higher. A visible ray reflection rate is increased in a photovoltaic cell direction and a light having a wavelength of an area having low reactivity among reflected lights is simultaneously absorbed to re-emit a light having a wavelength of an area having high reactivity, thereby improving a waterproof feature and photoelectric transformation efficiency of the photovoltaic module. COPYRIGHT KIPO 2016 ...

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Номер записи: 10
23-05-2019 дата публикации

FOAM COMPOSITION AND FOAM TAPE INCLUDING FOAM LAYER INCLUDING CURED PRODUCT THEREOF

Номер: WO2019098727A1
Автор: SEO, Beom Doo, SONG, Heon Sik, PARK, Hyo Soon, LEE, Nam Jeong, JUNG, Je Sik, JEONG, Hun
Принадлежит:

The present invention relates to: a foam composition; and a foam tape including a foam layer including a cured product thereof.

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Номер записи: 11
17-07-2017 дата публикации

ENCAPSULATION MATERIAL SHEET

Номер: KR1020170082781A
Автор: JUNG, JE SIK, KIM, HYUN CHEOL, PARK, HYO SOON, LEE, JUNG YOUN
Принадлежит:

The present invention relates to an encapsulation material sheet, a production method thereof, and an optoelectronic device comprising an encapsulation material sheet and, more specifically, to an encapsulation material sheet capable of increasing power generation efficiency of an optoelectronic device, for example a solar cell module, by minimizing decrease in a total reflection effect when being stacked with a backsheet, and to a production method thereof. COPYRIGHT KIPO 2017 ...

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Номер записи: 12
10-07-2017 дата публикации

BLACK BACKSHEET FOR SOLAR CELL, SOLAR CELL MODULE INCLUDING SAME AND MANUFACTURING METHOD THEREOF

Номер: KR1020170079945A
Автор: PARK, HYO SOON, KIM, HYUN CHEOL, KANG, SEONG WOOK, KO, HYUN SEONG, LEE, JUNG YOUN, JUNG, JE SIK
Принадлежит:

The present invention relates to a black backsheet for a solar cell, a solar cell module including the same, and a manufacturing method thereof. The present application provides a black backsheet for a solar cell, and a method of manufacturing the same, wherein the black backsheet is an encapsulant integrated type and comprises a substrate; an infrared ray transmitting black pigment layer formed on the substrate; and an encapsulant layer formed on the infrared ray transmitting black pigment layer. The present application also provides a solar cell module including the black backsheet and a method of manufacturing the same. According to the present application, the energy efficiency of the solar cell module can be improved and the productivity can be increased. COPYRIGHT KIPO 2017 ...

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Номер записи: 13
01-06-2017 дата публикации

광전지 모듈용 봉지재

Номер: KR0101742865B1
Автор: 박효순, 김현철, 정재식
Принадлежит: 주식회사 엘지화학

... 본 출원은 광전지 모듈용 봉지재 및 이의 제조 방법과 상기 봉지재를 포함하는 광전지 모듈에 관한 것이다. 본 출원의 봉지재는 유리 섬유를 포함하는 층을 포함하여 우수한 난연성을 확보할 수 있다. 또한, 상기 봉지재의 유리 섬유를 포함하는 층이 백시트와 부착될 경우에도 우수한 접착력을 확보할 수 있는 동시에 광전지 모듈로 제조될 경우 양호한 외관을 나타낼 수 있다.

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Номер записи: 14
25-07-2016 дата публикации

광 모듈용 백시트 및 이를 포함하는 광 모듈

Номер: KR0101642580B1
Автор: 박효순, 김현철, 고현성
Принадлежит: 주식회사 엘지화학

... 본 발명은 유리 섬유층을 포함하는 광 모듈용 백시트, 및 이를 포함하는 광 모듈을 제공한다. 유리 섬유층은 유리 섬유 시트와 불소계 수지를 포함할 수 있다. 본 발명에 따르면, 화염(flame)에 강한 저항력을 가져 난연성이 우수하면서, 이와 함께 양호한 접착력 및 절연성 등을 갖는다.

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Номер записи: 15
17-03-2023 дата публикации

복수 종의 호스트 재료 및 이를 포함하는 유기 전계 발광 소자

Номер: KR20230037756A
Автор: 박효순, 길준형, 박경진, 조상희, 박소미
Принадлежит:

... 본원은 1종 이상의 제1 호스트 화합물 및 1종 이상의 제2 호스트 화합물을 포함하는 복수 종의 호스트 재료 및 이를 포함하는 유기 전계 발광 소자에 관한 것이다. 본원에 따른 특정 조합의 화합물을 호스트 재료로 포함함으로써, 낮은 구동 전압, 높은 발광 효율, 및 긴 수명 특성을 갖는 유기 전계 발광 소자를 제조할 수 있다.

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Номер записи: 16
18-05-2012 дата публикации

MULTILAYER FILM, AND PHOTOVOLTAIC MODULE COMPRISING SAME

Номер: WO2012064082A3
Автор: KIM, Hyun Cheol, KWON, Yoon Kyung, KO, Hyun Seong, PARK, Hyo Soon, AHN, Do Won
Принадлежит:

The present invention relates to a multilayer film, to a backing sheet for a photovoltaic cell, to a method for manufacturing same, and to a photovoltaic module. The multilayer film of the present invention is configured such that a resin layer is formed on a base, wherein the resin layer contains a fluorinated polymer and a reactive function group having an equivalent of 30,000 or less, thus enabling the resin layer containing the fluorinated polymer to have excellent durability and weather resistance, and superior interfacial adhesion with the base. In addition, a process for manufacturing the multilayer film of the present invention enables a drying process to be performed at a low temperature, thus reducing manufacturing costs, improving productivity, and preventing degradation in the quality of a product caused by thermal deformations or thermal shocks. The above-described multi-layer film of the present invention may be effectively used, for example, as a backing sheet for a variety ...

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Номер записи: 17
01-06-2017 дата публикации

광전지 모듈용 백시트

Номер: KR0101742864B1
Автор: 강성욱, 김현철, 고현성, 박효순
Принадлежит: 주식회사 엘지화학

... 광전지 모듈용 백시트, 및 이를 포함하는 광전지 모듈을 제공한다. 상기 광전지 모듈용 백시트는 제1 및 제2 파장변환물질을 포함하는 제1 수지층과 400 내지 1200 nm 파장 범위의 광을 40% 이상 반사시키는 제2 수지층을 포함하여 광전지 셀 방향으로의 가시광선 반사율을 증가시킴과 동시에, 반사된 광 중에서 반응성이 낮은 영역의 파장을 갖는 빛을 흡수하여 반응성이 높은 영역의 파장을 갖는 빛으로 재방출하되 전체적으로 파장이 변환되는 정도를 증가시킴으로써 반응성이 높은 영역의 광을 방출 강도가 높으므로 광전지 모듈의 내후성 및 광전 변환 효율을 향상시키는 효과가 우수하다.

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Номер записи: 18
18-05-2012 дата публикации

MULTILAYER FILM, AND PHOTOVOLTAIC MODULE COMPRISING SAME

Номер: KR2012064082A2
Автор: KIM, Hyun Cheol, KWON, Yoon Kyung, KO, Hyun Seong, PARK, Hyo Soon, AHN, Do Won
Принадлежит:

The present invention relates to a multilayer film, to a backing sheet for a photovoltaic cell, to a method for manufacturing same, and to a photovoltaic module. The multilayer film of the present invention is configured such that a resin layer is formed on a base, wherein the resin layer contains a fluorinated polymer and a reactive function group having an equivalent of 30,000 or less, thus enabling the resin layer containing the fluorinated polymer to have excellent durability and weather resistance, and superior interfacial adhesion with the base. In addition, a process for manufacturing the multilayer film of the present invention enables a drying process to be performed at a low temperature, thus reducing manufacturing costs, improving productivity, and preventing degradation in the quality of a product caused by thermal deformations or thermal shocks. The above-described multi-layer film of the present invention may be effectively used, for example, as a backing sheet for a variety ...

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Номер записи: 19
19-10-2016 дата публикации

ENCAPSULATION MATERIAL FOR PHOTOCELL MODULE

Номер: KR1020160120950A
Автор: PARK, HYO SOON, KIM, HYUN CHEOL, JUNG, JE SIK
Принадлежит:

The present invention relates to an encapsulation material for a photocell module, a manufacturing method thereof, and a photocell module including an encapsulation material. The encapsulation material of the present invention includes a layer including a glass fiber to obtain an excellent fire retardant. In addition, even when a layer including the glass fiber of the encapsulation material is attached to a back sheet, the encapsulation material can obtain an excellent adhesion force and represent a favorable appearance when manufactured into the photocell module. COPYRIGHT KIPO 2016 ...

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Номер записи: 20
29-10-2009 дата публикации

EPOXY-BASED COMPOSITION, ADHESIVE FILM, DICING DIE-BONDING FILM AND SEMICONDUCTOR DEVICE

Номер: WO2009131405A3
Автор: YOO, Hyun Jee, KHO, Dong Han, KIM, Jang Soon, PARK, Hyo Soon, HONG, Jong Wan, JOO, Hyo Sook
Принадлежит:

The present invention relates to an epoxy-based composition, an adhesive film, a dicing die-bonding film and a semiconductor device employing the same. More specifically, it relates to an epoxy-based composition having a gel content of from 5% to 20% when measured under specific conditions and to an application therefor. The epoxy-based composition according to the present invention can minimise the incidence of burrs during processing while at the same time exhibiting outstanding high-temperature adhesive properties and displaying superior resilience characteristics even when a low glass-transition temperature is set when it is made into an adhesive. Consequently, when the present invention is employed, it can prevent die-pushing defects during high-temperature wire bonding or moulding processing, and it allows the production of outstandingly reliable semiconductor devices due to the superior adhesiveness and workability of the adhesive.

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Номер записи: 21
10-11-2011 дата публикации

MULTILAYERED SHEET, AND METHOD FOR PREPARING SAME

Номер: WO2011139052A3
Автор: KIM, Hyun Cheol, KO, Hyun Seong, PARK, Hyo Soon, KWON, Yoon Kyung, AHN, Do Won
Принадлежит:

The present invention relates to a multilayered sheet, to a backing sheet for a photovoltaic cell, to a method for preparing same, and to a photovoltaic module. The present invention relates to a multilayered sheet, comprising a resin layer containing fluorine resins that exhibits superior durability and weather resistance, as well as superior interfacial adhesion to a base or to a polymer coating layer. In addition, according to the present invention, a drying process for preparing the multilayered sheet can be conducted at a low temperature, to thereby reduce preparation costs, improve productivity, and prevent deterioration in product quality caused by thermal deformation, thermal shocks, or the like. The above-described multilayered sheet of the present invention can be effectively used, for example, as a backing sheet for a variety of photovoltaic cells.

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Номер записи: 22
10-11-2011 дата публикации

MULTILAYERED SHEET, AND METHOD FOR PREPARING SAME

Номер: WO2011139052A2
Автор: KIM, Hyun Cheol, KO, Hyun Seong, PARK, Hyo Soon, KWON, Yoon Kyung, AHN, Do Won
Принадлежит:

The present invention relates to a multilayered sheet, to a backing sheet for a photovoltaic cell, to a method for preparing same, and to a photovoltaic module. The present invention relates to a multilayered sheet, comprising a resin layer containing fluorine resins that exhibits superior durability and weather resistance, as well as superior interfacial adhesion to a base or to a polymer coating layer. In addition, according to the present invention, a drying process for preparing the multilayered sheet can be conducted at a low temperature, to thereby reduce preparation costs, improve productivity, and prevent deterioration in product quality caused by thermal deformation, thermal shocks, or the like. The above-described multilayered sheet of the present invention can be effectively used, for example, as a backing sheet for a variety of photovoltaic cells.

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Номер записи: 23
27-07-2017 дата публикации

광전지 모듈용 수지 조성물, 다층 필름 및 이를 포함하는 광전지 모듈

Номер: KR0101762455B1
Автор: 고현성, 김현철, 권윤경, 박효순, 안도원
Принадлежит: 주식회사 엘지화학

... 본 발명은 광전지 모듈용 수지 조성물, 다층 필름, 그 제조 방법, 광전지 모듈용 이면 시트 및 광전지 모듈에 관한 것이다. 본 발명의 광전지 모듈용 수지 조성물은, 불소계 수지 및 블록화된 가교제를 포함하고 있어, 바니쉬의 가사 시간(pot life)이 향상되고, 이에 따라 공정 조건의 변경에 제약이 없으며, 경화 반응이 급격히 이루어지지 않기 때문에 본 발명의 수지 조성물을 기재에 코팅 후 건조할 시에 핀 홀(pin hole) 또는 보이드(void)의 발생이 적고, 기재와의 접착력도 우수하게 유지할 수 있다. 또한, 본 발명의 광전지 모듈용 수지 조성물은 1액형 방식으로 기재 상에 코팅할 수 있어, 2액형 방식에 따른 별도의 추가 설비를 요하지 않기 때문에 제조 비용을 절감할 수 있다.

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Номер записи: 24
06-07-2017 дата публикации

PHOTOVOLTAIC CELL MODULE

Номер: KR1020170077465A
Автор: JUNG, JE SIK, PARK, HYO SOON, LEE, JUNG YOUN, KIM, HYUN CHEOL
Принадлежит:

The present application relates to a photovoltaic module, a filler or uses thereof. The present application can provide a photovoltaic module having excellent durability and capable of stably maintaining durability even under prolonged exposure to severe conditions such as high-temperature conditions or ultraviolet irradiation conditions, etc., and a filler for manufacturing the same. The photovoltaic module includes a back sheet, a receiving substrate facing to the back sheet, and a photovoltaic cell or a photovoltaic cell array protected by the filler between the back sheet and the receiving substrate. COPYRIGHT KIPO 2017 ...

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Номер записи: 25
21-04-2011 дата публикации

DIE ATTACH FILM

Номер: KR2011046238A1
Автор: JOO, Hyo Sook, CHANG, Suk Ky, PARK, Hyo Soon, HONG, Jong Wan, CHO, Hyun Ju, KIM, Jang Soon
Принадлежит:

The present invention relates to a die attach film, a semiconductor wafer, and a semiconductor packaging method. The invention provides a die attach film, which can prevent chip scattering or generation of burrs or the like during a dicing process and shows excellent expandability and pickup effect when a die bonding process is performed. Further, according to the present invention, the die attach film is capable of preventing chips from being detached, pushed out or deflected during a wire bonding or molding process. Thus, the invention improves the embedding property, suppresses the warpage of a wafer or a wiring substrate, and enhances productivity during a semiconductor package process.

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Номер записи: 26
18-05-2017 дата публикации

광전지 모듈용 백시트

Номер: KR0101737685B1
Автор: 강성욱, 김현철, 박효순, 고현성
Принадлежит: 주식회사 엘지화학

... 광전지 모듈용 백시트, 및 이를 포함하는 광전지 모듈을 제공한다. 상기 광전지 모듈용 백시트는 파장변환물질을 포함하는 제1 수지층과 400 내지 1200 nm 범위 파장의 광에 대한 반사율이 40% 이상인 제2 수지층을 포함하여 광전지 셀 방향으로의 가시광선 반사율을 증가시킴과 동시에 반사된 광 중에서 반응성이 낮은 영역의 파장을 갖는 빛을 흡수하여 반응성이 높은 영역의 파장을 갖는 빛으로 재방출함으로써 광전지 모듈의 내후성 및 광전 변환 효율을 향상시키는 효과가 우수한 이점이 있다.

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Номер записи: 27
15-03-2016 дата публикации

ENCAPSULATION SHEET

Номер: KR0101603842B1
Автор: 김현철, 정재식, 이정연, 허용준, 박효순
Принадлежит: 주식회사 엘지화학

... 본 출원은 봉지재 시트에 관한 것으로, 에틸렌-알파올레핀 공중합체에 라디칼 중합으로 알콕시 실란계 화합물을 그라프팅시켜 실란 그라프트 변성 에틸렌-알파올레핀 공중합체를 포함하는 봉지재 시트를 제공한다. 구체적으로, 상기 봉지재 시트의 에틸렌-알파올레핀 공중합체와 실란 그라프트 변성 에틸렌-알파올레핀 전체 공중합체에서의 그라프트된 알콕시 실란기의 개수가 탄소수 100 내지 4,000 당 1개일 수 있다. 본 출원에서는 수분투과율이 낮고 투명도가 높은 봉지재 시트 및 그 봉지재 시트로 봉지된 소자를 포함하는 구조를 제공할 수 있다.

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Номер записи: 28