Patent ID: 8110868
Filing Date: 2012-02-07
Classification: H01L

Abstract:
1. A semiconductor component having a semiconductor body comprising: a drift zone of a first conductivity type; a drift control zone composed of a semiconductor material which is at least partly arranged adjacent to the drift zone; a body zone which is arranged adjacent to the drift zone; a storage capacitance coupled between the drift control zone and the body zone; an accumulation dielectric which is arranged between the drift zone and the drift control zone; with a quotient of a net dopant charge in the entire volume of the drift control zone, which is adjacent to the accumulation dielectric in a direction at right angles to the accumulation dielectric, divided by the area of the accumulation dielectric being less than the breakdown charge of the semiconductor material in the drift control zone; a first connecting zone of the first conductivity type which is more heavily doped than the drift zone, wherein the drift control zone is connected to the first connecting zone, and the drift zone is arranged between the body zone and a drain zone; and wherein the drift control zone is coupled to the drain zone via a diode that is configured to prevent a discharge of the storage capacitance to the drain zone when the semiconductor component is in an on state.