Patent ID: 7910410
Filing Date: 2011-03-22
Classification: H01L

Abstract:
1. A method of forming a diode having an anode and a cathode comprising: forming a metal portion of a Schottky barrier junction that is coupled to said anode or said cathode; forming an insulated gate having one side thereof adjacent said metal portion and having an electrode electrically coupled to said metal portion; forming a concave-shaped conduction channel under said insulated gate; forming a first end of a drift region adjacent an opposite side of said gate with a second end of said drift region coupled to said cathode if said metal portion is connected to said anode, and to said anode if said metal portion is connected to said cathode; forming a first layer of a first conductivity type under a gate oxide of said gate; forming a second layer of a second conductivity type under, and in contact with, said first layer wherein said first layer and said second layer form a RESURF structure; forming a first region of said second conductivity type in contact with said metal portion and said first layer; forming a well of said second conductivity type in contact with said first region; and forming a second region in contact with said well and said second layer.