Patent ID: 9064943
Filing Date: 2015-06-23
Classification: H01L

Abstract:
1. A field effect transistor comprising: an insulator layer having a top surface and a cavity at said top surface; a semiconductor body on said top surface, said semiconductor body having a bottom, a top opposite said bottom and opposing sides, said semiconductor body comprising source/drain regions and a channel region positioned laterally between said source/drain regions, and said semiconductor body traversing said cavity such that said channel region is aligned above said cavity; and, a gate having a lower portion within said cavity adjacent to said bottom of said semiconductor body at said channel region and an upper portion adjacent to said top and said opposing sides of said semiconductor body at said channel region, said lower portion extending a first distance below said bottom of said semiconductor body, said upper portion extending a second distance above said top of said semiconductor body, and said second distance being less than said first distance.