Patent ID: 7273785
Filing Date: 2007-09-25
Classification: H01L

Abstract:
1. A method of fabricating a silicon-on-insulator (SOI) metal oxide field effect transistor (MOSFET) device comprising: providing an initial SOI wafer which includes at least a first Si-containing layer located atop a buried oxide region, said first Si-containing layer having an implanted back-gate region located therein, said implanted back-gate region is laterally confined by deep isolation trench regions which extend to said buried oxide region; providing a second SOI wafer having at least an oxide layer formed atop a second Si-containing layer; bonding said SOI wafers together to provide a bonded structure in which the oxide layer of the second wafer is bonded to at least the implanted back-gate region of said first Si-containing layer of the initial SOI wafer; exposing the second Si-containing layer of the bonded structure; converting a portion of said exposed second Si-containing layer into a body region; and forming a gate dielectric and a polysilicon gate atop said body region.