Either ENIG or immersion silver will give you a very flat finish.



Ken Kirby
Applications Engineer
Speedline Technologies
573-317-3062
cell 817-946-3357



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             11/15/05 06:28 PM         [TN] best plated surface finish


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If somebody wants an extra smooth plating finish using lead free plating
what material would they use...and what would be the finishing process?
I've heard HASL is sort of rough...and it really doesn't apply using
silver solder because of the melting temps.
Is ENIG (electroless nickel immersion gold) the way to go to get a
smooth finish?

thanks!

John Babcock
PCB Designer III
Isothermal Systems Research (ISR)
2218 N. Molter Rd
Liberty Lake, WA 99019
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P: (509) 241-4641
F: (509) 444-1082

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