You're wrong. You need to allow for drill oversizing at fab.

-----Original Message-----
From: Ted Tontis, C.I.D. [mailto:[log in to unmask]] 
Sent: Tuesday, December 09, 2003 8:12 AM
To: [log in to unmask]
Subject: [DC] Manufacture adjusting Gerber's


We recently sent out a design that is in the Alpha stage. We received an
e-mail back from the assembly house and they had complained that we
called out for a hole that had a finished diameter 118 mils with a
clearance opening of 126 mils. They are now getting shorts in the board,
there response was "That for a finished 118 mil hole we drill a 124 mil
hole so there is most certainly going to be a short."  I was under the
understanding that the board manufacture knows that if he is going to
need to drill a hole larger to meet the finished requirements they
automatically increases the clearance to compensate for the drill hole
needed. Am I wrong?

Regards,

Ted Tontis CID
Engage Networks Inc.
1320 N. Dr. Martin Luther King Drive
River Level
Milwaukee, WI 53212
PH 414-918-4267
FX 414-273-7601




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