午夜三级在线-午夜湿-午夜湿影院-午夜视频www-操你啦网站-操你啦在线播放

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: 欧美日韩一区二区亚洲 | 福利一二区 | 日本国产精品 | pornh日本xxxxhd| 亚洲欧美日韩综合一区 | 亚洲欧美日韩精品久久亚洲区 | 亚洲经典千人经典日产 | 欧美成人一级片 | 91亚洲国产在人线播放午夜 | 色综合久久六月婷婷中文字幕 | 男女做羞羞的网站视频 | 久久亚洲国产视频 | 欧美香蕉 | 怡红院在线视频精品观看 | 一级午夜免费视频 | 美国俄罗斯毛片一区二区 | 97婷婷狠狠成为人免费视频 | 在线播放 你懂的 | 欧美一区二区三区在线播放 | 欧美国产亚洲精品a第一页 欧美国产在线观看 | 14一15sexvideo日本 | 一本大道香蕉大无线视频 | 风流放荡的艳妇小说 | 黄色在线免费网站 | 一级毛片毛片毛片毛毛片 | 妞干在线 | 国产高清在线不卡 | 天天插日日操 | 999yy成年在线视频免费看 | www.欧美成人 | 欧美日韩一区不卡 | 一级a毛片免费观看 | 在线观看免费大黄网站 | 国产成人在线小视频 | 26uuu另类亚洲欧美日本一 | 欧美综合区| 国产亚洲一区呦系列 | 欧美笫一页| 激情视频亚洲 | 一个人看的www视频免费观看 | 黄网站色视频免费观看 |