Patent ID: 7608888

Claim:
A field effect transistor comprising: a first semiconductor layer of a first conductivity type; a first dielectric layer disposed upon said first semiconductor layer; a second semiconductor layer of a second conductivity type disposed upon said first dielectric layer wherein said first semiconductor layer and said second semiconductor layer are disposed on two opposite surfaces of said first dielectric layer; a second dielectric layer disposed upon said second semiconductor layer wherein said first dielectric layer and said second dielectric layer are disposed on two opposite surfaces of said second semiconductor layer; and a third semiconductor layer of said first conductivity type disposed upon said first semiconductor layer, wherein a first portion of the third semiconductor layer of said first conductivity type is between a first and a second portion of said first dielectric layer, a second portion of the third semiconductor layer of said first conductivity type is between a first and a second portion of said second semiconductor layer and a third portion of the third semiconductor layer of said first conductivity type is between a first and a second portion of said second dielectric layer.