Bill,

What about HASL with a lead-free solder?

This process has been running successfully at a number of PCB shops in Europe
for more than a year now.   The demand for lead-free boards is still fairly
limited but the indications are that lead-free HASL is a viable process that
delivers a finish that is as good as tin-lead HASL in terms of appearance,
coplanarity and solderable shelf life.

Keith Sweatman
Nihon Superior Co., Ltd

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