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Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 23 May 2001 10:12:10 -0700 |
Content-Type: | text/plain |
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Dear Technetters,
Thanks in advance for any insight you can offer on this issue ...
The issue is discoloration of LPI solder mask (ENPLATE DSR-3241 (MD)) that
corresponds to areas that were selectively wave soldered I believe using OA
flux. There are pictures at the link below ...
http:\\www.eskimo.com\~ehare\EH_516
The discoloration does not map with ground planes or other internal
circuitry in the PWB.
What might cause this type of discoloration?
Thanks,
Ed Hare
SEM Lab, Inc.
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