Hi Happy,

Could this customer mean the Ni-stabilised Sn-0.7 Cu?  A presentation
about this leadfree HASL was given at the IPC conference in Brussels
earlier this year. Although the melting point of this patented alloy is
about 40 degrees Celcius higher than for 63/37, the processing
temperature is the same, and it was presented almost as a drop-in
replacement.

Daan Terstegge
Thales Communications
Unclassified mail
Personal Website: http://www.smtinfo.net


>>> [log in to unmask] 10/30/03 04:01pm >>>
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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