Patent ID: 9245960
Filing Date: 2016-01-26
CPC Classification: H01L

Claim Text:
1. A field effect transistor comprising: an insulator layer; a semiconductor body on said insulator layer, said semiconductor body being essentially rectangular in shape and having a bottom surface immediately adjacent to said insulator layer, a top surface opposite said bottom surface, opposing sidewalls, a first end and a second end opposite said first end, and said semiconductor body comprising: dielectric field plates on said insulator layer positioned laterally immediately adjacent to said opposing sidewalls, respectively, such that said drain drift region is positioned between and immediately adjacent to said dielectric field plates; conductive field plates on said insulator layer positioned laterally immediately adjacent to said dielectric field plates such that each dielectric field plate is between said drain drift region and a conductive field plate, a dielectric cap layer above and immediately adjacent to top surfaces of said conductive field plates and said semiconductor body, said dielectric cap layer further extending laterally over and covering said cavity.