中文字幕亚洲欧美日本懂色,亚洲视频一区在线色婷婷,天天干天天干天天日天天操,麻豆国产精品777777在线,欧美一区二区三区另,中文字幕丰满人妻日本了,熟妇人妻av中文字幕在线,最新福利免费视频一区二区,伊人少妇精品在线观看视频

SZSE:002741
Surface Finishing
Information
Application:

Immersion silver, as a lead-free PCB finished surface treatment process, serves for depositing a layer of silver with thickness of 6~16μ inch on copper surface through replacement reaction to ensure flat surface; it has good conductivity and solderability.

Advantage introduction:

Smooth surface, suitable for package of SMD and BGA;
Standard surface for Au-wire & Al-wire bond, can replace electroplating nickel/gold or ENIG;
Can replace electroplating nickel or silver for bonding, good reflexes as surface;
Good electroconductivity for contact conduction application;
Low risk of electromigration and low galvanic effect.
 
 
 

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1