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by ipc.org (Smail3.1.28.1 #2)
id m0v63Rf-0000QBC; Wed, 25 Sep 96 18:32 CDT |
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Wed, 25 Sep 1996 19:41:21 -0400 |
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| From [log in to unmask] Wed Sep 25 19: |
09:08 1996 |
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<"IcyCg1.0.liB.U4SIo"@ipc> |
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Lou,
I can only think of problems associated with a black oxide coating on outer
layers of a PWB. I have heard of a bronze oxide outer layer coating which
would be a very thin oxide coating & there are major process control issues
with this coating. It is obvious to me that your supplyer has adhesion
problems with their soldermask and are looking at an A#1 kludge fix for this
problem. I would say NO!.
Dave Sullivan
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