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March 1999

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Subject:
From:
Rob Watson <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 22 Mar 1999 12:00:18 -0500
Content-Type:
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We have a CyberSentry automatic paste inspection system for our SMT lines.  I am
trying to establish warning & failure limits for each of our boards.

I would like to know if anyone has any recommendations in percentage of the
paste height, volume, and area for limits they set.  The engineer said he has
used 20% for the warning limits. ( i.e. on a 6 mil stencil, 6.5 mils nominal +/-
1.3 mils (20%) )
Does this sound like a fair number?

I would like to get a feel for what other manufacturers are using for their
limits.

Thanks in advance,
Rob Watson
Sanmina Corp.
Plant 10

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