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May 2015

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From:
Syed Ahmad <[log in to unmask]>
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TechNet E-Mail Forum <[log in to unmask]>, Syed Ahmad <[log in to unmask]>
Date:
Mon, 18 May 2015 14:09:00 +0000
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Wyko. OGP.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Louis Hart
Sent: Friday, May 15, 2015 12:24 PM
To: [log in to unmask]
Subject: [TN] measuring bump heights

Technetters, how can one measure solder or copper bump heights on an IC or PC board?  Heights and spacings I am interested in are in the range of 100-200 microns and 300-400 microns, respectively.

Thanks for any help.

Maybe someone in the foil business is on technet. At EXPO, there have been discussions of foil roughness measurement techniques.  My problem is, I think, an easy one by comparison.   Louis Hart

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