Patent ID: 7411266
Filing Date: 2008-08-12
Classification: H01L

Abstract:
1. A semiconductor device comprising: a region of semiconductor material having a first major surface; a trench compensation region formed in the region of semiconductor material extending from the first major surface, wherein the trench compensation region comprises a plurality of opposite conductivity type semiconductor layers; a body region formed in the region of semiconductor material; a source region formed in the body region and laterally spaced apart from the trench compensation region; a gate structure formed between the source region and trench compensation region, wherein the gate structure includes a conductive gate region configured to establish a channel region in the body region when the device is in operation; a channel connecting region formed at an upper portion of the trench compensation region configured to electrically connect the channel region to the trench compensation region when the device is in operation; and a doped region extending laterally from the trench compensation region into the region of semiconductor material and below the body region, wherein the doped region and body region comprise a first conductivity type, and wherein the channel connecting region comprises a second and opposite conductivity type.