Patent ID: 7952177

Claim:
A semiconductor device comprising: a lead frame having a plurality of inner leads; a heat sink isolated from the lead frame, the heat sink being adhered to an underside of one end of each inner lead in an upper surface thereof; a semiconductor element mounted on the upper surface of the heat sink; a plurality of metallic wires electrically connecting the inner leads with corresponding electrode pads of the semiconductor element; and a sealing resin that seals the inner leads, the semiconductor element and the metallic wires, wherein: the semiconductor element is adhered to the upper surface of the heat sink in a plurality of bonded points by die bond, a plurality of openings are provided in the heat sink, at least one of the plurality of openings being configured to extend to the semiconductor element and being arranged to overlap at least a central portion of the semiconductor element, and when the heat sink is viewed in planar view, one of the bonded points is between at least one pair of the openings.