Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 4. Отображено 4.
27-10-2010 дата публикации

Positioning device and alignment method for exposure alignment of PCB (Polychlorinated Biphenyl) board green oil

Номер: CN0101872131A
Автор: SAIHUA CUI, XIAOTAO WANG, CUI SAIHUA, WANG XIAOTAO
Принадлежит:

The invention discloses a positioning device and a corresponding alignment method for exposure alignment of PCB board green oil. The device is characterized by being formed by the combination of two cylinders with different diameters, wherein the cylinder the upper end diameter of which is greater is a cap body, and the cylinder the lower end diameter of which is smaller is a nail body. The invention has the advantages that: 1. the positioning device has simple structure and convenient manufacture; 2. the frequencies of aligning and regulating a film can be greatly reduced by adopting the positioning device to assist positioning, and thereby, the efficiency of manual alignment is greatly improved and the operation difficulty is lowered; and 3. the device and a positioning hole on the PCB board are in small tolerance fit. Therefore, the accuracy of the exposure manual alignment can be greatly improved.

Подробнее
Номер записи: 1
16-03-2011 дата публикации

Singlechip-based low-power consumption networking positioning instrument

Номер: CN0101986765A
Автор: WEIWEI LI, LIZHI CUI, SHAOHUA WANG, ZHUANG MIAO, JIXING XUE, YUKAI WANG, SAIHUA CUI, WENJUAN ZHANG, LI WEIWEI, CUI LIZHI, WANG SHAOHUA, MIAO ZHUANG, XUE JIXING, WANG YUKAI, CUI SAIHUA, ZHANG WENJUAN
Принадлежит:

The invention relates to a singlechip-based low-power consumption networking positioning instrument, which comprises a control module, a global positioning system (GPS) module, a wireless data transmission module, a sensor module and a display and alarm module. The control module is any singlechip in 51 series and is externally connected with the GPS module, the wireless data transmission module, the sensor module and the display and alarm module; the wireless data transmission module is a multi-channel micropower embedded wireless data transmission module; the sensor module comprises a micro-electromechanical system (MEMS) pressure sensor and a terrestrial magnetic sensor; the GPS module, the MEMS pressure sensor and the terrestrial magnetic sensor acquire air pressure, temperature and terrestrial magnetic information to transmit the information to the control module; and a core processor comprehensively processes the acquired information, transmits the information to each node equipment ...

Подробнее
Номер записи: 2
21-04-2010 дата публикации

Method for detecting positional deviation among layers of multilayer printed circuit board

Номер: CN0101697001A
Автор: Cui Saihua
Принадлежит:

The invention discloses a method for detecting positional deviation among layers of a multilayer printed circuit board, which comprises the following steps: A, selecting an even layer or an odd layer in the printed circuit board, and setting a plurality of circular alignment marks of which the diameters are in equidifferent and progressive increase on the selected layers; B, etching the circular alignment marks on the layers to form substrates, and overlying and pressing the layers in the printed circuit board into a whole according to the circular alignment marks; C, drilling holes on the circular alignment marks from the outermost layer of the printed circuit board, wherein the bore diameters of drilling holes are the minimum bore diameter in the circular alignment marks; D, etching copper materials around the drilling holes at the outermost layer of the printed circuit board to form circular rings so as to enable the drilling holes to be independent mutually; and E, measuring the short-circuit ...

Подробнее
Номер записи: 3
13-07-2011 дата публикации

Method for detecting positional deviation among layers of multilayer printed circuit board

Номер: CN0101697001B
Автор: CUI SAIHUA, SAIHUA CUI
Принадлежит:

The invention discloses a method for detecting positional deviation among layers of a multilayer printed circuit board, which comprises the following steps: A, selecting an even layer or an odd layer in the printed circuit board, and setting a plurality of circular alignment marks of which the diameters are in equidifferent and progressive increase on the selected layers; B, etching the circular alignment marks on the layers to form substrates, and overlying and pressing the layers in the printed circuit board into a whole according to the circular alignment marks; C, drilling holes on the circular alignment marks from the outermost layer of the printed circuit board, wherein the bore diameters of drilling holes are the minimum bore diameter in the circular alignment marks; D, etching copper materials around the drilling holes at the outermost layer of the printed circuit board to form circular rings so as to enable the drilling holes to be independent mutually; and E, measuring the short-circuit ...

Подробнее
Номер записи: 4