Patent ID: 8482067

Claim:
A field effect transistor comprising: a semiconductor body having a first side and a second side opposite said first side, said semiconductor body comprising: a channel region; a drain drift region positioned laterally adjacent to said channel region; and a drain region positioned laterally adjacent to said drain drift region opposite said channel region; an isolation region positioned laterally immediately adjacent to said channel region, said drain drift region, and at least three sides of said drain region within said semiconductor body; and a gate structure comprising extensions adjacent to said drain drift region on said first side and said second side, each extension being above said isolation region and extending laterally from said channel region toward said drain region, and each extension further having a sidewall that is angled relative to said semiconductor body such that a portion of said isolation region between said extension and said semiconductor body has a continuously increasing width along a length of said drain drift region from said channel region to said drain region.