Patent ID: 8008714
Filing Date: 2011-08-30
Classification: H01L

Abstract:
1. A semiconductor device including a MOSFET, comprising: a semiconductor substrate having a main surface and a back surface opposite to the main surface; a plurality of transistor cell regions disposed in the semiconductor substrate, each of the plurality of transistor cell regions including: a source electrode of the MOSFET disposed over the main surface of the semiconductor substrate and being in contact with a top surface of the source region in each of the plurality of transistor cell regions, a drain electrode of the MOSFET disposed over the back surface of the semiconductor substrate and electrically connected to the semiconductor substrate; and a Schottky cell region disposed between the plurality of transistor cell regions in the semiconductor substrate, the source electrode being in contact with a part of the main surface of the semiconductor substrate so as to form a Schottky junction in the Schottky cell region, and the Schottky junction being located lower than a top surface of the source region.