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June 1997

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>From willli Mon Jun 16 13:
59:50 1997
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Re: Gold Finger Touch Up
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The only way to remove solder from gold (assuming it is fully wetted) is to 
strip all the underlying gold off the finger and replate. The solder will have 
dissolved much of the gold (if not all) under the joint, forcing replating of 
the finger anyway.

There are commercial strippers and plating solutions available (I saw some adds 
a few years ago) that can strip and replate that one finger and avoid scrapping 
the panel..

______________________________ Reply Separator _________________________________
Subject: Gold Finger Touch Up
Author:  Denis Meloche <[log in to unmask]> at INTERNET
Date:    6/16/97 1:50 PM


Does anyone have information on how to repair gold edge connectors which 
have solder on them?  I remember a product or service from the late 70's or 
early 80's which purported to fix this.  Can anyone shed some light on the 
subject?  I have seen the defect repaired by reflowing with Au80/Sn20 but I 
am unsure of the long term reliability of this method.
Thanks,
Denis Meloche
Heraeus Inc
610-825-6050
     
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