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March 2001

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Subject:
Re: Cam & Au
From:
Anil Kher <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 22 Mar 2001 09:22:53 +0530
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Mipl1Dear Earl

Good ductile additive/P  free Nickel base covered by a flash ~
0.05 microns of Gold should provide a very cost effective finish
competeitive with HASL and others.

The key component for solderability and shelf life is the Nickel undercoat.
~ 5 microns is adequate if ductile etc as above.

Under proper controlled condition this finish should give all advantages as
1. Longer shelf life - ( Nickel is critical.)
2. Flat surface profile

what more - economic and looks good too.

Anil Kher



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