Patent ID: 7656029

Claim:
A semiconductor package structure, comprising: a substrate, the substrate having conductive traces, the traces having pad landings; an integrated circuit device (IC) mounted on the substrate, the IC having bonding pads; a plurality of conductive wires connecting the IC bonding pads with the pad landings connected to the traces; a heat slug having a predetermined height disposed on the surface of the substrate, the heat slug including a plurality of mounting feet the mounting feet providing mechanical attachment of the heat slug to the substrate, a cavity to accommodate the IC device, a plurality of first-size openings, the plurality of first-size openings surrounding the IC device; a second-size opening, the second size opening constructed from one of the first-size openings the second-size opening being larger than the first-size opening, the second-size opening facilitating the introduction of molding compound into the cavity of the heat slug.