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June 1997

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Subject:
Re: Assy: Au/Pd/Ni/Cu PCB Finish
From:
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Date:
Thu, 12 Jun 1997 15:22:06 -0400 (EDT)
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John,

The palladium/gold  acts as a good solderable surface and will retain
solderability for  a long time.  For example 8 micorinches of palladium with
an overplate of 6-8 micoinches of gold will retain solderability much better
than any of the single platings such as 15 microinches of gold over nickel.
 It also eliminates that worry about gold embrittlement.  

Phil Hinton 
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