Patent ID: 7393718
Filing Date: 2008-07-01
Classification: H01L,H05K

Abstract:
1. A method comprising: obtaining a substrate comprising a first side and a second side; attaching a semiconductor die comprising a periphery to the first side of the substrate, the semiconductor die comprising a first surface comprising a drain, and a second surface opposite the first surface, wherein the second surface comprises source and gate regions; attaching conductive structures to the substrate outside of the periphery of the semiconductor die, wherein the conductive structures are substantially coplanar with the semiconductor die; and attaching the substrate to a printed circuit board using the conductive structures, wherein there is no underfill material between the substrate and the printed circuit board, wherein after attaching the substrate to the printed circuit board, the source and gate regions of the semiconductor die at the second surface are electrically coupled to the substrate, and wherein the conductive structures provide communication between source and gate regions at the second surface of the semiconductor die and the printed circuit board, and wherein the drain at the first surface of the semiconductor die is electrically coupled to the printed circuit board.