Patent ID: 7960781

Claim:
A semiconductor device comprising: a body of semiconductor material having a major surface and formed with a vertical charge compensation structure, wherein the vertical charge compensation structure includes at least one conduction layer of a first conductivity type semiconductor material and at least one compensation layer of a second conductivity type semiconductor material, wherein the second conductivity type is opposite to the first conductivity type; a body region of the second conductivity type formed in the body of semiconductor material adjacent to the vertical charge compensation structure; a source region of the first conductivity type formed adjacent the body region; a trench control structure formed adjacent the source and body regions, wherein the source region is interposed between the trench control structure and the vertical charge compensation structure, wherein the trench control structure is configured to form a channel region within the body region; and a doped region of the first conductivity type formed spaced apart from the major surface and underlying the body region and extending from a drain end of the channel region to the at least one conduction layer.