午夜国产大片免费观看-午夜国产在线视频-午夜国产视频-午夜国产福利在线-黑人操日本妞-黑人干亚洲

Welcome to the official website of Legret Metal Company
Focus on electronic welding for 20 yearsDONGGUAN LEGRET METAL.,LTD
National consultation hotline:135-2799-2739
Contact US
mobile phone: 135-2799-2739
Service hotline: 0769-38893080
Email: [email protected]
Address: Dongguan lvzhidao Metal Co., Ltd
Contact person: Manager Zeng
Industry information

What are the factors that affect the thickness of the laser steel mesh of the red paste used in the placement process?

作者:Lvzhidao solder factory 2021-04-24 0

What are the usual considerations for the thickness of laser wire mesh with red glue solder paste?


The thickness of the paste wire mesh is considered by the precision of the welding layer of electronic components. High precision electronic components are made of thin steel sheet, and large welding layer components are made of thick steel sheet. The thickness of solder paste mesh is usually between 0.08-0.18mm, and that of red glue mesh is between 0.15-0.3mm. Which components are high precision?


Generally, 0201 components can use 0.08mm thin steel plate, 0402 components can use 0.1mm thin steel plate, 0603 components can use 0.12mm thin steel plate... It is based on the size of resistance and capacitance components to judge, then a PCB board is not only such, but also IC, BGA and other components, in this case, it must be based on the minimum IC interval to judge the thickness of wire mesh, Otherwise, too thin will be less tin, too thick will be more tin. The thickness of steel wire mesh is one of the most important factors affecting the quality of steel wire mesh.

er=http___i03.c.aliimg.jpg

主站蜘蛛池模板: 成人精品 | 精品手机在线视频 | 天堂中文资源在线8 | 久久精品免视着国产成人 | 日本三级久久 | 综合 欧美 国产 视频二区 | 一级啪啪片 | 欧美日韩一区二区在线 | 国产成人久久精品二区三区 | 超级乱淫视频aⅴ播放视频 超级碰碰碰在线观看 | 久草在线免费福利视频 | 亚洲视频 欧美视频 | 国产精品久久久久久网站 | 天天操夜夜噜 | 日本www视频在线观看 | 欧美综合成人网 | 一区二区欧美视频 | 久久久久久久久一次 | 68久久久久欧美精品观看 | 久久精品九九 | 日本成人免费在线视频 | 国产乱子伦露脸对白在线小说 | 午夜67194 | 日韩一区二区在线观看 | 久久精品网站免费观看 | 美国的毛片免费的 | 久久99精品视频在线在线观看 | 国产永久在线视频 | 99在线观看精品视频 | 国产成人久久综合热 | 一级做a爰片性色毛片小说 一级做a爰片性色毛片中国 | 亚洲精品影院一区二区 | 成人久久网站 | 亚洲男人的天堂网 | 成人交性视频免费看 | 精品国产精品国产 | 精品成人 | 亚洲国产一 | 国产激情久久久久久影院 | 91精品久久久久含羞草 | 一级毛片国产 |