Patent ID: 7583513

Claim:
A device forms a printed circuit board, said printed circuit board comprising: a first major exterior surface; a second major exterior surface, at least one of the first major exterior surface and the second major exterior surface including a plurality of component mounting pads; a signal carrying plated through hole terminating at the at least one of the first major surface and the second major exterior surface; a pad between the first major surface and the second major surface, the signal carrying plated through hole connected to the pad; an antipad element substantially surrounding the pad; a plane metallization layer within the device substantially surrounding the pad and the antipad; a plated through hole attached to the plane metallization layer and terminating at the at least one of the first major exterior surface and the second major exterior surface including the plurality of component mounting pads, the plated through hole attached to the plane metallization layer, and electrically isolated from the plurality of component mounting pads; and a circuit tester to determine if a current will flow between the pad and the signal carrying via, and the plane metallization layer to test the spacing of the plane metallization layer from the signal through hole that passes through the plane metallization layer.