Patent ID: 8466501

Claim:
An asymmetric junction field effect transistor structure comprising: a first gate on an insulator layer above a semiconductor substrate, said first gate having a first conductivity type; a single channel region having a bottom surface adjacent to said first gate, said channel region further having a top surface, a first side, a second side opposite said first side, and a second conductivity type different from said first conductivity type; a source region on said top surface of said channel region at said first side, said source region having said second conductivity type; a drain region on said top surface of said channel region at said second side, said drain region having said second conductivity type; a second gate on said top surface of said channel region and positioned laterally between said source region and said drain region, said second gate having said first conductivity type; a trench isolation structure laterally surrounding said channel region and said first gate, extending vertically to said insulator layer, and being in contact with said first side of said channel region; and, a gate contact positioned laterally between said second side of said channel region and said trench isolation structure such that said second side of said channel region is physically separated from said trench isolation structure and, thereby such that said asymmetric junction field effect transistor is asymmetric, said gate contact extending vertically down to said insulator layer and said gate contact having said first conductivity type.