hjcvg黄金城会员登录-首页 | hjc黄金城集团-官网

SZSE:002741
Surface Finishing
Information
Application:

Through the change of chemical potential of copper ion, Sn2+ in plating solution is in replacement reaction with copper surface of PCB to generate silver white tin layer with thickness of about 1μm on copper surface; it is the most ideal process to substitute tin spraying. Immersion tin applies to fine-circuit and dense-circuit PCB as well as Press-fit plug-in technique, and is suitable for lead-free SMT, and meets the requirements for multiple welding. The process applies to horizontal and vertical line.

Advantage introduction:

No electromigration effect, no branch in tin layer, control whisker growth effectively;
Uniform surface color;
Good densification and antioxidant performance;
Excellent stability of PIM value.
 
 
 
 

Related Products

Copyright © Guangdong Guanghua Sci-Tech Co., Ltd. GuangDong ICP No. 14033791-1
Baidu
sogou