Patent ID: 7902606

Claim:
A semiconductor structure comprising: a first shallow trench isolation (STI) portion and a second STI portion embedded in a semiconductor substrate comprising a semiconductor material and separated from each other; a gate dielectric contacting a top surface of said semiconductor substrate, wherein a portion of a top surface of said semiconductor substrate is located between said first STI portion and said second STI portion; a body layer comprising a first portion of said semiconductor material and contacting said gate dielectric and a bottom surface of said second STI portion and a pair of sidewalls of said second STI portion directly adjoined to opposite ends of said bottom surface of said second STI portion, wherein said body layer contiguously extends between said first STI portion and said second STI portion; a bottom electrode layer comprising a second portion of said semiconductor material, vertically contacting said body layer, located in said semiconductor substrate, and having a doping of a first conductivity type, wherein said body layer has a doping of a second conductivity type that is the opposite of said first conductivity type; a source region comprising a third portion of said semiconductor material, having a doping of said second conductivity type, contacting said first STI portion; a drain region comprising a fourth portion of said semiconductor material, having a doping of said second conductivity type, and contacting said second STI portion and a surface of said semiconductor substrate; and a top gate electrode contacting said gate dielectric.