Patent ID: 8963244
Filing Date: 2015-02-24
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a transistor, the transistor comprising a body region, a drift zone, a source region and a drain region in a first semiconductor layer having a first main surface, the body region and the drift zone being disposed between the source region and the drain region, the source region, the body region, the drift zone and the drain region being disposed along a first direction, the first direction being parallel to the first main surface; trenches in the first semiconductor layer and extending in the first direction, the transistor further comprising a dielectric layer, a gate electrode adjacent to the body region, and a drift control region adjacent to the drift zone, the drift control region and the gate electrode being disposed in the trenches, the dielectric layer being disposed between the drift region and the drift control region, wherein the drift control region comprises a monocrystalline semiconductor material.