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In a message dated 1/6/99 10:57:32 AM Pacific Standard Time, [log in to unmask]
writes:
<< Ken,
OSP coated boards are tested electrically before the coating is
applied by fab houses. The coating is applied at last fabrication
process step just before packaging and shipping.
Matthew
Norsat International Inc. >>
Yep Matthew, that's the way it's SUPPOSED to be done. However, I have received
OSP coated fabs from shops where you could see where the probes have broken
thru the OSP. I've always understood that the coating must stay intact and
unbroken. But when I questioned the marks I observed, I was told that people
complain when they DON'T see probe marks because they think the board wasn't
tested. I really didn't buy that...sounded too much like a tap-dance to me...
-Steve Gregory-
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