Hi Happy,
 
I can't help you with the lead free HASL but be careful with acronyms. A lot of people use the acronym PCB for assemblies and PWB for printed wire board. I'll bet your customer is really requesting totally lead free assemblies.
 
Just my thoughts,
 
KennyB
 
-----Original Message-----
From: Happy Holden [mailto:[log in to unmask]]
Sent: Thursday, October 30, 2003 7:02 AM
To: [log in to unmask]
Subject: [TN] Lead-free HASL


We have a customer asking for Pb-free HASL.  I am not familiar with this finish.  The temperature for Pb-free solder would be quite high and the effects on a board, as well as the HASL equipment might be detrimental.  The customer says it is used in Japan, he quotes a Matsushita Electric news release.  The release seems to indicate that they are using a lead-free solder paste but  that word is not used, just "PCBs with lead-free solder".  Does anyone know of a Pb-free HASL process?

Happy Holden
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