Patent ID: 7499288

Claim:
A surface mounting semiconductor device, comprising: at least one semiconductor element having at least one electrode; a recess having an outer bottom surface and an outer circumferential surface, the recess being composed of a metal and configured to receive the semiconductor element adjacent thereto; a bonding wire having one end connected to the at least one electrode on the semiconductor element; at least one wiring conductor connected to the other end of the bonding wire; a sealing resin arranged to seal over the semiconductor element and the bonding wire; a molded member formed one of integrally with the sealing resin and separately from the sealing resin, to support the wiring conductor and the recess, the molded member including a bottom surface; and a groove having a certain width and depth and formed in the bottom surface of the molded member, wherein the outer bottom surface of the recess is exposed from the molded member, and at least part of the outer circumferential surface of the recess is exposed from the molded member into the groove, and wherein the semiconductor element is mounted on the recess.