Patent ID: 7880200
Filing Date: 2011-02-01
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first electrode located on a front surface of a semiconductor body; a second electrode, located on a rear surface of the semiconductor body; an insulated gate electrode; a via on the semiconductor body in an intermediate oxide layer for the first electrode; wherein the semiconductor body comprises: an edge region of a source connection zone with a highly doped zone of a first conduction type, wherein the highly doped zone extends to a channel region of a body zone with a conduction type complementary to the first conduction type, a central region of the source connection zone with the complementary conduction type a monolithically integrated free wheeling diode; a highly doped region of the complementary conduction type outside of the channel region of the body zone which is located below the highly doped zone of the first conduction type and laterally adjacent to the central region of the source connection zone such that the central region of the source connection zone directly contacts a low doped region of the body zone, wherein the central region has a net concentration of doping material of the complementary conduction type which is lower than the concentration of doping material of the highly doped region, wherein the highly doped region is an anode of the monolithically integrated free wheeling diode; and a highly doped connecting region in a rear region located on the second electrode has a highly doped collector zone of the complementary conduction type, wherein the highly doped collector zone of the complementary conduction comprises an opening, wherein a highly doped emitter zone of said first conduction type is arranged in the opening, wherein the highly doped emitter zone covers a smaller area than the highly doped collector zone, and wherein the emitter zone is a cathode of said monolithically integrated free wheeling diode.