ENIG-BLACK PAD

2017/2/27 22:40:55

It is very common to relate ENIG pad surface finishing with BLACK PAD defect. However, is anyone know why BLACK PAD defect only happen on fine pitch pad areas such as BGA, QFP? Why this defect did not or seldom happen on capacitor or resistor pad?

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Daniel Gilbert

2017/3/1 22:40:55

What you share on your post is quite useful.

Kermit

2017/3/1 22:40:55

I have share it with my classmates. They all appreciate it a lot.

Bradley

2017/3/1 22:40:55

Nice sharing. What you share in this article is very useful. I will follow you and keep reading your posts.

Earl

2017/3/1 22:40:55

Your sharing is quite useful to my new project. Thanks a lot.

ENIG-BLACK PAD

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