I have an FR4 board with possibility of short between mounting screws and
+5V plane. The board manufacturer neglected to leave clearance around
drilled hole. 1% burned up at start up. Anyone have any ideas how to
assess the risk of the others having latent failures? How likely are they
to create a sustained burn (that is, does FR4 self extinguish?).
Help
Kevin Stokes
Senior Reliability Engineer
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