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July 2008

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Subject:
From:
Lenny at ERG <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Lenny at ERG <[log in to unmask]>
Date:
Mon, 21 Jul 2008 22:09:23 -0400
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How does the rest of the world measure scores on pcbs?  We order pcbs in one of 3 different thicknesses: .031", .047" or .062" thick.  We typically spec our scores to be to a .012" +/- .004" web thickness.  We have had arrays come in flimsy, and even been able to see light through the scores, causing the assemblies to nearly fall apart, and other times we have received them underscored and are difficult to separate.
We have no tools to measure other than verniers (and that doesnt work)  How do you folks measure scores on similar pcbs?
thanks, Lenny Carter.  ERG, Inc.   www.ergpower.com

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