Patent ID: 7728416
Filing Date: 2010-06-01
Classification: H01L

Abstract:
1. A semiconductor device comprising: (a) a semiconductor chip having a main surface and a back surface opposite to the main surface, the semiconductor chip including a MOSFET, the semiconductor chip having a source electrode and a gate electrode of the MOSFET on the main surface thereof and a drain electrode of the MOSFET on the back surface thereof; (b) a resin sealing member covering the semiconductor chip, the resin sealing member having an upper surface and a lower surface opposite to the upper surface, the resin sealing member having a first side surface and a second side surface opposite to the first side surface, the first and second side surfaces intersecting the upper and lower surfaces; (c) a source lead electrically connected to the source electrode via a plurality of salient electrodes, the source lead comprising a first portion, a second portion and a third portion, the first portion being positioned over the source electrode and partially exposed from the upper surface of the resin sealing member, the first portion having grooves on a surface which confronts the main surface of the semiconductor chip, the second portion being formed integrally with the first portion and bent from the first portion toward the lower surface of the resin sealing member, the second portion being covered with the resin sealing member, the third portion being formed integrally with the second portion and being partially exposed from the lower surface of the resin sealing member; (d) a gate lead electrically connected to the gate electrode, the gate lead comprising a first portion, a second portion and a third portion, the first portion being positioned over the gate electrode, the first portion being covered with the resin sealing member and not being exposed from the upper surface of the resin sealing member, the second portion being formed integrally with the first portion and bent from the first portion toward the lower surface of the resin sealing member, the second portion being covered with the resin sealing member, the third portion being formed integrally with the second portion and partially exposed from the lower surface of the resin sealing member; and (e) a header electrically connected to the drain electrode,