You did not mention if your solder has been analyzed for contaminates.  The 
most troublesome contaminants are copper and gold.  The following limits 
should apply:
.25% for copper and .08% for gold.  The combined total should not exceed 
.30%.

Jan Satterfield
Edo Corp
Salt Lake City, UT
[log in to unmask]
 ----------
From: Terry Huddeston
To: dabonz; jasatt; Tech Net
Subject: ASSY: Gold contamination after wave sold

Original Subject:
ASSY: Gold contamination after wave soldering?


Could anyone out there help with the explaination of why after wave
soldering that there will appear a gold film mainly on top of the PWB?
Some of our inspectors are concerned and question what this substance
is?

Thanks for any help on this subject.

Terry Huddleston
Teledyne Lewisburg

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