Patent ID: 7554137
Filing Date: 2009-06-30
Classification: H01L

Abstract:
1. A semiconductor component with charge compensation structure, comprising, in a semiconductor body, a drift path between two electrodes, and the drift path having drift zones of a first conduction type, which provide a current path between the electrodes in the drift path, and charge compensation zones of a complementary conduction type, which constrict the current path of the drift path, the drift zones comprising two alternately arranged, epitaxially grown drift zone types of the first conduction type, a first drift zone type having monocrystalline semiconductor material on a monocrystalline substrate, and a second drift zone type having monocrystalline semiconductor material in a trench structure with complementarily doped walls, the complementarily doped walls forming the charge compensation zones, wherein the ratio v between the width b K of the charge compensation zones transversely with respect to the current path and the width b D of the drift zones transversely with respect to the current path is b K /b D =v≦0.1.