Patent ID: 9666710
Date: 2017-05-30
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a semiconductor substrate having a first conductivity type, a first surface, and an opposed second surface; a gate structure supported by the first surface of the semiconductor substrate; a first current carrying region disposed in the semiconductor substrate at the first surface, wherein the first current carrying region is laterally separated from the gate structure; a drift region of a second conductivity type disposed in the semiconductor substrate at the first surface, wherein the second conductivity type is opposite the first conductivity type, and the drift region extends laterally from the first current carrying region to the gate structure; and a first buried region of the second conductivity type disposed in the semiconductor substrate below the first current carrying region, wherein the first buried region is vertically aligned with the first current carrying region, the first buried region does not extend into any portion of the semiconductor substrate directly underlying the gate structure, and a first portion of the semiconductor substrate with the first conductivity type is present between the first buried region and the first current carrying region.