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April 10, 2007 - Updated
July 4, 2007 - Originally Posted

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.

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Edward Zamborsky
Regional Sales Manager
OK International Inc.
Ed Zamborsky is a Regional Sales & Technical Support Manager for Thermaltronics, located in New York. His position requires frequent customer visits throughout North America and the Caribbean and his position encompasses not only sales but the role of trainer and master applications engineer for all of Thermaltronics products. His expertise includes such specialties as hand soldering, convection and conduction reflow techniques, array rework, fluid dispensing equipment, and fume extraction. Ed has authored many articles and has presented many papers on topics such as; Low Volume SMT Assembly, Solder Fume Extraction, SMT Rework, BGA Rework, Lead-Free Hand Soldering, High Thermal Demand Hand Soldering, Lead Free Visual Inspection and Lead Free Array Rework.
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