Patent ID: 7456476

Claim:
A nonplanar semiconductor device comprising: a semiconductor body having a top surface opposite a bottom surface formed above an insulating substrate, wherein said semiconductor body has a pair of laterally opposite sidewalls; a gate dielectric formed on said top surface of said semiconductor body, on only a portion of said bottom surface of said semiconductor body, and on said laterally opposite sidewalls of said semiconductor body; a gate electrode formed on said gate dielectric on said top surface of said semiconductor body, adjacent to said gate dielectric on said laterally opposite sidewalls of said semiconductor body, and beneath said gate dielectric on said portion of said bottom surface of said semiconductor body, wherein said gate electrode has a pair of laterally opposite sidewalls oriented perpendicularly to said laterally opposite sidewalls of said semiconductor body, said gate electrode having a top portion and a bottom portion, and wherein said bottom portion of said gate electrode undercuts said top portion of said gate electrode along said pair of laterally opposite sidewalls of said gate electrode; and a pair of source/drain regions formed in said semiconductor body on opposite sides of said gate electrode.