Patent ID: 7982284
Filing Date: 2011-07-19
Classification: H01L

Abstract:
1. A semiconductor component, with a semiconductor body, comprising: a substrate of a first conduction type; a buried semiconductor layer arranged on the substrate; and a functional unit semiconductor layer arranged on the buried semiconductor layer, in which at least two semiconductor functional units arranged laterally alongside one another are provided, the functional unit semiconductor layer having a surface that does not adjoin the buried semiconductor layer and forms a surface of the semiconductor component; wherein the conduction type of the substrate is opposite to the conduction type of the buried semiconductor layer and/or the functional unit semiconductor layer; wherein the buried semiconductor layer is a part of the at least one semiconductor functional unit, and the semiconductor functional units are electrically insulated from one another by an isolation structure which permeates the functional unit semiconductor layer, the buried semiconductor layer and the substrate; and wherein the isolation structure comprises at least one trench and an electrically conductive contact to the substrate, the electrically conductive contact to the substrate being electrically insulated from the functional unit semiconductor layer and the buried layer by the at least one trench, the sidewalls of which are at least partly covered with an insulating layer and the interior of which is completely filled with an electrically conductive material which makes electrical contact with the substrate and extends as far as the surface of the semiconductor component.