欧美日韩不卡合集视频-国产精品网站在线观看免费传媒-亚洲熟妇av日韩熟妇在线-亚洲成av人片无码天堂下载-日产精品高潮呻吟av久久

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: lzd@dglzd.com
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: 黑人大战亚洲人精品一区| 久久这里只有是精品23| 欧美又大又色又爽aaaa片| 日本三级吃奶头添泬无码苍井空 | av无码av高潮av喷吹免费| 国产在线精品一区二区三区直播 | 久久综合丝袜日本网| 国产成人精品无码短视频| 男女又爽?又黄?3D免费| 欧美老妇bbbwwbbbww| 大帝a∨无码视频在线播放| 亚洲最大日夜无码中文字幕| 永久免费看一区二区看片| 无码人妻丰满熟妇片毛片| 一夲道无码人妻精品一区二区| 亚洲国产成人综合在线观看| 免费无遮挡无码视频在线观看 | 男人的天堂av网站| 国产无遮挡又黄又爽高潮| 麻豆精品久久久久久久99蜜桃| 中文人妻av久久人妻18| 爆爽久久久一区二区又大又黄又嫩| 妺妺窝人体色www看人体 | 久久亚洲中文字幕精品有坂深雪| 国产成人午夜福利在线观看视频| 欧美人体一区二区视频| 国自产偷精品不卡在线| 国产精品一久久香蕉国产线看观看| 暖暖 免费 高清 日本 在线 | 开心久久婷婷综合中文字幕| 男人和女人在床的app| 免费人妻无码不卡中文字幕18禁| 日韩精品人妻系列无码专区| 理论片午午伦夜理片久久| 性色欲情网站iwww九文堂| 日产一区日产2区| 国产av永久精品无码| 午夜福利片国产精品| 欧美变态口味重另类在线视频| 日韩av无码一区二区三区无码| 日本成本人片免费网站|