亚洲女同在线观看-亚洲女同在线-亚洲女同视频-亚洲女同精品中文字幕-美国激情ap毛片-美国黄色一级毛片

您好!歡迎訪問Beijing Le Si Ruirong hung Electronics Co. Ltd.的網站!阿里巴巴官方旗艦店 中文 ENGLISH
News Center
Your location:Homepage -> News Center -> Detail

Analysis of glass and metal packaging


Glass and metal package with graphite sintered plate. Drawing a single crystal with a graphite heater. Ion implantation and plasma etching with graphite components and Shi Momo by drawing the fiber; - EDM with graphite electrode; - mechanical carbon graphite (such as mechanical seal with graphite ring. Vacuum pump and compressor blade with graphite and graphite bearing rotary vane etc.); - Electrical carbon graphite (such as carbon and conductive contact materials); - graphite crystallizer for continuous casting; graphite products by powder metallurgy and hard alloy and electric furnace; melting metal (alloy) by graphite crucible; - other carbon graphite processing. Some people say that the glass metal package is a component of the trunk and limbs, some people say that the shell and chip is the relationship between the lips and teeth, skin and meat. In short, the consensus is that the shell is not only the package of the coat of the chip, it has a support (electrical connection, heat transfer, mechanical protection, etc.), but also components of the component. The quality of the shell is closely related to the quality and reliability of the components. As everyone knows, air tightness is the shell is one of the important indicators of the components, the cavity air tightness is not good to the outside water vapor, harmful ions or gas into the components of the resulting surface leakage, "knot" changes, as well as the failure mode parameters (according to reports, due to moisture content in the cavity due to component failure rate for more than 26% of the total failure rate). In the 1014A GJB548A sealing method, air tightness of the shell does not cover provisions for A4 test conditions, the failure criterion: unless otherwise specified, if the measurement of the leakage rate of more than 1 "Rl * 10-3 Pa? Cm3/s (helium), device (shell) should be regarded as a failure.
[Go back]   


主站蜘蛛池模板: 日韩欧美国产精品| 国产成人精品一区二区三在线观看 | 中国老人倣爱视频| 大学生一级片| 青草国产精品久久久久久| 扁豆传媒在线入口| 男人把女人桶爽30分钟一| 搞逼视频免费看| 啊灬啊灬啊灬喷出来了| 久久成人国产精品一区二区| 久久精品国产99久久99久久久 | 久久精品视频亚洲| 日本漂亮人妖megumi| 色妞网| 99在线精品免费视频| 正在播放pppd| 波多野结衣家庭教师奇优| 天天干天天射天天操| 野花社区视频www| 男男污网站| 777奇米四色米奇影院在线播放| 高n车多肉多| 一进一出抽搐呻吟| 波多野结衣加勒比| 旧里番洗濯屋1一2集无删减| 欧美人与动欧交视频| 中文字幕亚洲一区二区三区| 午夜精品久久久久久中宇| 影音先锋男人站| v片免费在线观看| 18av黄动漫在线观看| 嫩草视频在线免费观看| 国产大片黄在线观看| 色妞网站| 久久久久九九精品影院| 亚洲第一永久在线观看| 在线国产欧美| 好骚导航| 欧美香蕉在线| 男人j进美女p动态图片| 视频在线免费观看资源|