Patent ID: 8030145

Claim:
A method of forming a semiconductor structure comprising: forming a doped semiconductor region in an upper portion of a first semiconductor layer of a first substrate by implanting dopant ions through a portion of a first oxide cap layer on said first semiconductor layer; forming a layer of hydrogen atoms in a second semiconductor layer of a second substrate by implanting hydrogen ions through an entirety of a second oxide cap layer on said second semiconductor layer; forming a bonded substrate by bonding said first substrate and said second substrate at an interface of said first oxide cap layer and said second oxide cap layer, wherein said first and second oxide cap layers form a buried oxide layer, and a portion of said second semiconductor layer on one side of said layer of hydrogen atoms constitute a semiconductor-on-insulator (SOI) layer; and forming a dual gate field effect transistor on said bonded substrate, wherein said doped semiconductor region constitutes a back gate electrode and a front gate electrode overlies an entirety of said back gate electrode.