Patent ID: 7322239
Filing Date: 2008-01-29
Classification: B81C,G01P,H01L

Abstract:
1. A semiconductor device comprising: a lead frame including a chip mounting section and a plurality of leads, the chip mounting section having a base section, an insulation film, a plurality of inter-connect section, and a chip mounting area, the base section having a surface and a plurality of edges, the insulation film covering the surface of said base section, the plurality of inter-connect sections being arrayed on said insulation film along the plurality of edges of said base section, the chip mounting area being disposed inside the array of said plurality of inter-connect sections, and the plurality of leads being spaced from said chip mounting section to surround said chip mounting section; a first semiconductor chip having a plurality of first electrode pads mounted on said chip mounting area of said lead frame; first bonding wires for electrically connecting said first electrode pads to said inter-connect sections; a second semiconductor chip having a cavity, a plurality of second electrode pads, a first main surface and a second main surface opposite said first main surface, the second semiconductor chip being mounted on said chip mounting section with a part of said plurality of inter-connect sections exposed, the cavity being formed from said second main surface, the plurality of second electrode pads being exposed from said first main surface and being formed along edges of said first main surface, and said first semiconductor chip and said first bonding wires being received in said cavity; second bonding wires for electrically connecting said exposed part of said inter-connect sections to said leads; third bonding wires for electrically connecting said second electrode pads to said leads; and a sealing section for sealing said second and third bonding wires, said second semiconductor chip, and said leads, with a part of said leads left as an exposed section, and using the exposed section of said leads as external terminals.