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April 10, 2007

Plating thickness for lead-free HASL

Is there a typical plating thickness that we have to abide to for Lead Free HASL PCB for a large exposed area? What will be the impact if the plating thickness is thicker or thinner than the recommended thickness?

N.Y.

Expert Panel Responses

While I cannot provide a specification, thicker would be better as the high tin content in the lead free solder will dissolve the plating during the soldering process.

image
Edward Zamborsky
Regional Sales Manager
OK International Inc.
Mr. Zamborsky serves as one of OK's technology advisers to the Product Development group. Ed has authored articles and papers on topics such as; Low Volume SMT Assembly, Solder Fume Extraction, SMT Rework, BGA Rework, Lead Free Hand Soldering, Lead Free Visual Inspection and Lead Free Array Rework.
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