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June 2005

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Subject:
PCB thickness measurement method
From:
Kathy <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Kathy <[log in to unmask]>
Date:
Thu, 9 Jun 2005 20:58:24 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (29 lines) 
Dear Technetters:



I am looking for an IPC guideline for measuring the overall thickness of a
bare PCB. Several independent customer specs I have read list the
measurement to be taken over the metal surface (metal to metal or mask to
mask), and that is certainly what I am familiar with. But I have been
challenged. I have searched and been unable to find a method or requirement
in my IPC A-600, 6012, and Test Methods. Also, I wonder if I could get your
inputs on how you all would measure bare board thickness.



Thank you,

K. Bergman


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