I wanted to know what is the consensus on White Tin finish for replacement of tin lead HASL.  Is it compatible with today's component finishes and the Lead free finishes of tomorrow.

I was told Nickel Gold is preferred but I've had issues with gold embattlement, and the cost is also a factor.  The gold we have on some of our assemblies has about 5 micro inches and I still do not get as nice of a solder joint as tin lead.

Scott Lefebvre
Process Engineer

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