Patent ID: 9082847
Filing Date: 2015-07-14
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first semiconductor layer of the first conduction type; a second semiconductor layer of the first conduction type provided above the first semiconductor layer; a plurality of gate electrodes respectively having one end located at the second semiconductor layer and other end located at the first semiconductor layer, the gate electrodes extending at a first direction; a plurality of gate dielectric films respectively provided between the first semiconductor layer and the gate electrodes; a plurality of first insulating films provided between the second semiconductor layer and the gate electrodes, respectively, the first insulating films being thicker than the gate dielectric film; a first electrode provided at a shallower position than the other end between adjacent ones of the gate electrodes and contacting the first semiconductor layer, the second semiconductor layer and one of the first insulating films; and a second electrode provided at an opposite side of the first semiconductor layer against to the second semiconductor layer.