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October 2001

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Subject:
Copper Invar Copper and BGA's
From:
Jim Kittel <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 31 Oct 2001 10:37:09 -0700
Content-Type:
text/plain
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text/plain (19 lines) 
Dear TechNet,
We have a requirement to design a CIC board using a 31mm x 31mm BGA.  I am
concerned that if we design such a monster, we will not be able to replace
the BGA at a rework station because of the high thermal mass of the core.
Is anyone using BGA's on Copper Invar Copper boards?  Help!

Jim Kittel
L-3 Communications

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