Patent ID: 7180752

Claim:
An electronic printed circuit board structure for implementing enhanced reliability for printed circuit board high power dissipation applications, said electronic printed circuit board structure comprising: a printed circuit board including a plurality of electrical contact pads on a first surface and an opposite second surface; an electronic module including a bottom surface; said bottom surface including a plurality of contact sites, some of said plurality of contact sites correspond to the pads on said first surface of the printed circuit board; an associated stiffener; said associated stiffener including a stiffener cavity; a first interposer positioned between said first surface of the printed circuit board and said bottom surface of the module; said first interposer comprising a first interposer insulator and a plurality of electrically conductive elements, each said electrically conductive element adapted to electrically connect one of a plurality of electrical contact pads of the printed circuit board to a respective one of the contact sites on the surface of the module; a second interposer positioned between said opposite second surface of the printed circuit board and said associated stiffener; said second interposer comprises a second interposer insulator and a plurality of electrically conductive elements, each of said plurality of electrically conductive elements adapted to electrically connect one of a sub-plurality of return current electrical contact pads of the printed circuit board to an external return current member; and said external return current member providing a return current path outside of the printed circuit board, thereby minimizing power dissipation within the printed circuit board.