Patent ID: 7217998
Filing Date: 2007-05-15
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor element; a circuit board electrically connected to the semiconductor element; a heat dissipation member fixed to a first surface of the circuit board and thermally coupled to the semiconductor element; and an interposer provided to a second surface of the circuit board facing away from the heat dissipation member, the interposer being electrically connected to the circuit board, the interposer comprising a base material having at least one through hole formed therethrough, wherein the top of each through hole has formed thereon an upper electrode, and the bottom of each through hole has formed thereon a lower electrode; and a conductor material provided between the interposer and the circuit board, the conductive material mechanically fixing and electrically connecting the interposer and the circuit board, wherein an opening is formed in the circuit board and the interposer so that the semiconductor element is thermally coupled directly to the heat dissipation member through the opening.