Purpose |
A clearance that is replaced by a thermal pad or omitted altogether can become a nightmare for the fabricator. It causes a direct short between a power plane and a ground plane with the usual disastrous results. Detecting shorts between two different P&G layers is crucial, even though sometimes false alarms are reported. |
Function |
Reports drills that touch large copper nets (not NFP) of
more than two P&G layers. The logic is that if a drill is drilled thru thermal pads
of two different P&G layers, it shorts the planes. |
Activation |
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