Patent ID: 7276766

Claim:
A lateral IGFET device comprising: a semiconductor substrate; a first region of a first conductivity type formed as part of the semiconductor substrate, wherein the semiconductor substrate and the first region are in physical contact without an intervening insulating layer between them; a body region of a second conductivity type formed in the semiconductor substrate adjacent the first region; a source region of the first conductivity type formed in the body region; a drain contact region of the first conductivity type formed in the first region to provide a lateral IGFET device configuration; a gate structure formed adjacent to the body region; and a super junction structure formed in the first region and laterally spaced apart from the body region so that a portion of the first region is between the super junction structure and the body region, the super junction structure including a pair of spaced apart filled striped trenches, a first striped doped region of the first conductivity type and a second striped doped region of the second conductivity type between the pair of spaced apart filled striped trenches, wherein the first striped doped region has a higher doping concentration than the first region, and wherein the pair of spaced apart filled striped trenches terminate within the first region thereby leaving another portion of the first region between lower surfaces of the pair of spaced apart filled striped trenches and the substrate, and wherein the first and second striped doped regions do not wrap entirely around the lower surfaces of the pair of spaced apart filled striped trenches.