Hi Rudy - ya gotta love Technet - I have never understood how I could get 
a layer of copper on top of immersion tin and now I do! I always knew what 
the impact was on soldering but never had a root cause for where the 
copper originated.  Your explanation fills in a knowledge gap for me.

Davee



R Sedlak <[log in to unmask]> 
09/18/2009 12:52 PM

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Re: [TN] Black Pad







Dave:

It appears that Linda Langley's experience backs up your comment 
completely.
Rudy Sedlak
RD Chemical Company


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