Patent ID: 8372716
Filing Date: 2013-02-12
Classification: H01L

Abstract:
1. A method for forming a semiconductor device comprising the steps of: providing a body of semiconductor material having a major surface; forming a vertical charge compensated structure in the body of semiconductor material extending from the major surface, where the vertical charge compensated structure includes at least one conduction layer of a first conductivity type and at least one compensation layer of a second conductivity type opposite the first conductivity type; forming a trench control structure in the body of semiconductor material; forming a doped region of the first conductivity type in the body of semiconductor material; forming a body region of the second conductivity type in the body of semiconductor material, where the body region overlies the doped region; and forming a source region of the first conductivity type adjacent the body region, where the source region is interposed between the trench control structure and the vertical charge compensated structure, and where the trench control structure is configured to form a channel region within the body region, and where the doped region extends between a drain end of the channel region and the conduction layer.