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December 2005

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Subject:
(PCB fabrication) Lam Voids
From:
Eddie Rocha <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Eddie Rocha <[log in to unmask]>
Date:
Wed, 28 Dec 2005 13:45:51 -0700
Content-Type:
text/plain
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text/plain (22 lines) 
I'm getting "LAM VOIDS" on a 16 layer board that we build.
The board is .140" thick and has 2 oz copper on layers 2,
8, 9, and 15. Any ideas on what might be causing these "LAM
VOIDS". The "lam voids" are about .004" x .010" in size and
x-sections show them between different layers such as the
surface of layers 2, 6, and 11.

I just began looking into this issue so I'll appreciate any
ideas.

Thank you,

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