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Reply To: | TechNet E-Mail Forum. |
Date: | Fri, 13 Mar 1998 09:00:06 -0500 |
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We used to spec the same tolerance. Never heard a peep of complaint from
most fab houses, the only one who complained was known by engineering to do
a poor job generally (but loved by our tight-fisted purchasing agent).
Jay DeKing
EMA Mid-Atlantic, Inc.
(716)334-2970 voice
(716)334-3481 fax
[log in to unmask]
-----Original Message-----
From: Richard G Smith [SMTP:[log in to unmask]]
Sent: Friday, March 13, 1998 8:26 AM
To: [log in to unmask]
Subject: [TN] PTH Positional Hole Tolerance
Hi All,
Here's the issue:
We specify in our fab spec that all holes are to be within .003" of
their corresponding pad center (true position of .006"). We are being
told by our fab house that this tolerance is unreasonably tight.
Any comments???
Thanks,
Rick
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