Patent ID: 7504678

Claim:
A tri-gate transistor comprising: a single crystalline silicon body on a substrate, said single crystalline silicon body having a top surface and a pair of laterally opposite sidewalls; a continuous gate dielectric formed on said top surface of said single crystalline silicon body and on said laterally opposite sidewalls of said single crystalline silicon body; a gate electrode formed on said gate dielectric on said top surface of said single crystalline silicon body and adjacent to said gate dielectric on said laterally opposite sidewalls of said single crystalline silicon body, said gate electrode having a pair of laterally opposite sidewalls separated by a first distance that run perpendicular to the laterally opposite sidewalls of the semiconductor body, and wherein the gate electrode provides a first gate adjacent to the top surface of the single crystalline silicon body, a second gate adjacent to one of the laterally opposite sidewalls of the single crystalline silicon body, and a third gate adjacent to the other of the laterally opposite sidewalls of the single crystalline silicon body; and a pair of source/drain regions formed in said single crystalline silicon body on opposite sides of said gate electrode wherein a channel region is located between said pair of source/drain regions and beneath said gate electrode, wherein said channel region has a first concentration of a first conductivity type and wherein said channel region has a doped region of a second concentration of said first conductivity type said second concentration greater than said first concentration.