Patent ID: 7825441

Claim:
A semiconductor structure comprising: a gate of a first conductivity type, wherein said gate is located directly beneath a top surface of a semiconductor substrate; a source of a second conductivity type, wherein said source is located directly beneath said top surface and abuts said gate, and said second conductivity type is the opposite of said first conductivity type; a drain of said second conductivity type, wherein said drain is located directly beneath said top surface, abuts said gate, and is disjoined from said source; a hyperabrupt junction layer of said second conductivity type, wherein said hyperabrupt junction layer includes an upper portion and a lower portion, and said upper portion is located directly beneath said gate, and said lower portion is located directly beneath said upper portion, said source, and said drain; and a body of said first conductivity type, wherein said body is located directly beneath said hyperabrupt junction layer and is disjoined from said gate, said source, and said drain.