Patent ID: 7122911

Claim:
A semiconductor device package comprising: a substrate having a top surface and a bottom surface; a semiconductor die mounted on the top surface of the substrate; a plurality of bonding wires used for electrically connecting the substrate and the semiconductor die, each of the bonding wires having a highest portion; a heat spreader comprising a heat spreader body, a supporting portion and an annular base, wherein the heat spreader body has at least one groove on a bottom surface thereof in the position corresponding to the highest portion of the bonding wires to prevent the bonding wires from touching the heat spreader body, the supporting portion extends outwardly and downwardly from the heat spreader body to form a cavity to accommodate the semiconductor die and the bonding wires, and the annular base has an opening, a bottom surface, a plurality of protrusions and an outer rim, the opening is defined by an inner rim, a bottom of the supporting portion is connected to the annular base, the protrusions are on the bottom surface of the annular base and are in contact with the top surface of the substrate, the protrusions extend outwardly and downwardly from the outer rim of the annular base so as to form a step configuration; and a molding compound used for encapsulating the substrate, the semiconductor die, the bonding wires and the heat spreader, wherein a top side of the heat spreader body is exposed.