Patent ID: 8564088
Filing Date: 2013-10-22
Classification: H01L

Abstract:
1. A semiconductor device with a semiconductor body, comprising: an active region with a vertical drift section of a first conduction type and with a near-surface lateral well of a second, complementary conduction type; an edge region surrounding the active region with a variably laterally doped doping material zone (VLD zone) of the second conduction type, which adjoins the lateral well and the concentration of doping material of which decreases to the concentration of doping material of the drift section along the VLD zone towards a semiconductor chip edge; and wherein at least one zone of complementary doping, which is located in the semiconductor body at a vertically lower point than the lateral well, is provided in a transitional region below a boundary between the lateral well to the VLD zone, and wherein the zone of complementary doping projects from a front sided surface of the semiconductor body more deeply into the semiconductor body than the lateral well of the complementary conduction type; wherein the zone of complementary doping has a doping material dose D