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May 1997

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Subject:
ASSY:Au/Ni Coated Boards
From:
"Raich, Zoran" <[log in to unmask]>
Date:
Thu, 29 May 97 12:00:00 PDT
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Dear Technetters
We have some printed circuit boards with gold over nickel coating which   
are experiencing solderability problems, ie very poor wetting. I have   
heard that this may be due to nickel migration through the gold over   
time. The boards are approximately 6 Months old. Is there a particular   
shelf life for this type of coating before we need to dump the boards?.

Regards
Zoran Raich
Process Engineer
NetComm (Aus) Ltd
(+612) 9878 7394
[log in to unmask]  

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