Patent ID: 9391195
Filing Date: 2016-07-12
CPC Classification: H01L

Claim Text:
1. A semiconductor device, comprising: a drift region having a first doping polarity formed in a substrate; a doped extension region formed in the drift region and having a second doping polarity opposite the first doping polarity, the doped extension region including a laterally-extending component; a dielectric structure formed over the drift region, the dielectric structure being separated from the doped extension region by a portion of the drift region; a gate structure formed over a portion of the dielectric structure and a portion of the doped extension region, the gate structure including a gate dielectric component that is separate from the dielectric structure; and a doped isolation region having the second doping polarity, wherein the doped isolation region at least partially surrounds the drift region and the doped extension region in a top view; wherein the laterally-extending component is disposed below, but not in direct contact with, the dielectric structure.