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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