Ask the Experts
November 14, 2011 - Updated
November 14, 2011 - Originally Posted

Electroplating Over Solder Joints

We have a need to electroplate a nickel passivationlayer over soldered joints. Do you know which type of solder would havebetter electroplating properties? 60/40? 63/37? Pure tin?

J. H.

Expert Panel Responses

I would go withpure tin as it would be the most conductive and also cut out the risk of issueswith different plating thickness on tin versus lead, the solder joint is a mixof metals so areas will be tin or lead rich. How ever I have to ask why wouldyou nickel plate over a solder joint?

Richard Boyle
Global Product Champion
Henkel Electronics
Richard Boyle is a Global Product Champion at Henkel Electronics. He has over 25 years experience in the electronics assembly industry and is responsible for the global technical service of all of Henkel's solder materials.
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