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| From [log in to unmask] Wed Oct 23 14: |
53:30 1996 |
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This morning, I was looking at some boards that had pads covered with
copper bumps, blisters, pimples, or whatever you want to call them. I've
been told this was a product of copper "burning", resulting when boards
are plated with current too high. Is this burnt copper unacceptable? I
didn't see any pictures in IPC-A-600 to suggest it wasn't, but don't like
the looks of the plating. Any comments? Thoughts from assemblers would
be welcome, too.
Lou Hart
Compunetics Quality Assurance
412-858-6117
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