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February 1998

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DesignerCouncil <[log in to unmask]>
Date:
Wed, 18 Feb 1998 07:57:40 -0600
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"DesignerCouncil E-Mail Forum." <[log in to unmask]>, [log in to unmask]
Subject:
Re: FR4 Material Part Number -Reply
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From:
Davis Ben <[log in to unmask]>
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Larry Campbell wrote:
>
> I'm still waiting to hear an answer to the original question.  If
> MIL-S-13949 is not called out on your fab drawing, then what
> replacement spec should be called out.
>
> Larry
>


Larry...

We call out ANSI/IPC-L-108  for laminates and ANSI/IPC-L-109 for prepreg
material.  Both have class and type designations.  We still have some
programs that call out the MIL-S-13949, but I suppose that is because
the contract pre-dates the spec obsolete date.

Ben Davis
Systems & Electronics, Inc.
[log in to unmask]

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