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id m0vCsdh-0000UfC; Mon, 14 Oct 96 14:25 CDT |
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Mon, 14 Oct 1996 11:12:59 -0700 |
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| From [log in to unmask] Tue Oct 15 08: |
44:12 1996 |
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If you are using a photo defined solder mask, you can control which
pads are covered/filled and which pads are cleared.
Bob Metcalf
Morton Electronic Materials
>>> Barry Darnell <[log in to unmask]> 10/14/96 11:41am >>>
I have run into a problem with a board that has vias in smt pads. We
need all of the vias plugged, and I am told that solder mask is the best
way to do that. This is to ensure that a good vacuum is maintained for
our ATE equipment. That is the problem. I can not have a via covered
with solder mask on top of an smt pad. The board house I am using says
this is difficult for them because they have to determine which vias are
plugged and which are not. Anyone out there with any suggestions?
Thanks,
Barry Darnell
(864)627-8800 Ext. 231 [log in to unmask]
CD Electronics, Inc.
Printed Circuit Board Designer
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