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March 1998

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TechNet <[log in to unmask]>
Subject:
Electroless Nickel / gold
From:
COwEv <[log in to unmask]>
Date:
Tue, 10 Mar 1998 17:22:03 EST
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"TechNet E-Mail Forum." <[log in to unmask]>, COwEv <[log in to unmask]>
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Hi

Has anyone any information on barrel cracking associated with the use of
electroless  nickel (EN) under a gold finish. We have a problem with 0.3 mm
via's in FR4 multilayer boards cracking after thermal shock at 260°C. We have
other problems with this board but is there any information on what effect EN
has under these conditions ?

Any comments ?


Thanks
Chris
 


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