Patent ID: 8119931

Claim:
A multilayer substrate for reducing differential loss comprising: a plurality of alternating electrically conductive and insulating layers disposed over first and second opposing surfaces of a core layer; a plurality of pairs of plated through holes extending through the core layer and operable to provide corresponding differential signals between an integrated circuit and a printed circuit board, the plurality of pairs of plated through holes operable to provide electrical communication between conductive layers of the plurality of alternating electrically conductive and insulating layers; and a plurality of plated through holes extending through the core layer and operable to provide ground from the printed circuit board to the integrated circuit, wherein one of the plurality of plated through holes providing ground is situated between through holes of each pair of plated through holes such that a center of the one of the plurality of plated through holes and centers of the each pair of plated through holes are aligned in a substantially collinear configuration.