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Date: | Fri, 27 Oct 95 16:13:36 EST |
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Thad,
While 0.01" is a good number for an absolute minimum, a good
number for "typical recommended minimum" for high volume
multilayer boards is 0.025"
This number should be increased if scoring is specified as
the means of depanelization/tab removal.
Routing or punching through holes is not recommended.
(Although specialized plating/hard tooling has yielded
acceptable half-barrels. Remember the Datakey dies, Joe F.?)
Mark Orzech
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Does anyone have any comments regarding how close a plated or
non-plated hole can be to the routed edge of a PCB.
What is the typical recommended minimum. I've been told that a plated
via and associated copper can be down to .010" to a routed edge.
I have personal concerns about how close a via can be before the
routing process may damage a via. Additionally the slop associated
with the routed edge location.
I'd appreciate any feedback.
Thanks,
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