Category:PCB PCB Pad

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Pad cratering is a mechanically induced fracture in the resin between copper foil and outermost layer of fiberglass of a printed circuit board (PCB). It may be within the resin or at the resin to fiberglass interface. Do you have ever problems about pcb pads? please talk here.

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ENIG-BLACK PAD Reply 2017-02-27 22:40:55
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Daniel

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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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Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

Daniel Gilbert

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What you share on your post is quite useful.

Kermit

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

Bradley

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

Earl

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