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The Knowledge and Know-how Connection
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June 19, 2013
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Views: 5683
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There were some talks few years back about gold directly over bare copper surface finish. Where soldering will be done directly to copper and the gold is acting as a corrosion resistance. I believe Macdermid was involved with such process. What happened to this finish? Is anyone in the industry using it?
Sherif Refaat, TRCI, Canada
SnCu is being proposed as an alternate to SAC materials because they are cheaper and supposedly process better. Why shouldn't I convert all my SAC PCBA to SnCu if it's so good. There have to be negatives.
Timothy Holder, GE Consumer & Industrial
Did I miss the answer to the question? Is there an acceptable level of exposed copper on flex and rigid boards?
Michael Schulz