Patent ID: 7812464
Filing Date: 2010-10-12
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor chip including a MOSFET, the semiconductor chip having a first major surface and a second major surface opposite to the first major surface, and the semiconductor chip having a gate electrode pad and a source electrode pad of the MOSFET disposed on the first major surface and a drain electrode pad of the MOSFET disposed on the second major surface; a gate lead disposed over the first major surface of the semiconductor chip and electrically connected to the gate electrode pad; a source lead disposed over the first major surface of the semiconductor chip and electrically connected to the source electrode pad; a header disposed over the second major surface of the semiconductor chip and electrically connected to the drain electrode pad; and a resin member sealing the semiconductor chip, the resin member having a top surface and a bottom surface opposite the top surface, the first major surface of the semiconductor chip facing toward the top surface, and the second major surface of the semiconductor chip facing toward the bottom surface, wherein the resin member has a first pair of opposed side surfaces extending in a first direction and a second pair of opposed side surfaces extending in a second direction perpendicular to the first direction; wherein the header has an exposed surface exposed from the bottom surface of the resin member; wherein the header has a first portion which a part thereof is covered with the resin member and a second portion which is exposed from the resin member; wherein the second portion of the header protrudes outwardly from one of the second pair of opposed side surfaces of the resin member and extends in the first direction: wherein a width in the second direction of an outside edge portion of the second portion of the header is wider than that of the first portion of the header; wherein the first portion of the header has a step portion provided on the periphery thereof; and wherein the step portion of the first portion of the header is covered with the resin body.