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April 1998

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Subject:
Re: Copper thickness measuring
From:
JB <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 2 Apr 1998 15:50:15 +0800
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text/plain
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text/plain (29 lines) 
Hi!

CMI and Fischer do make such devices. Both are using 'eddy current'.

Jens Behrens


>I am in need of a non-destructive method/device with which to measure
>copper thickness in a finished hole from .010" to .080" diameter in
>substrates from .020" to .060" thick.
>
>Resolution should be .0001".  Any ideas?
>
>Thanks, in advance for the guidance.
>
>TC

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