Patent ID: 9013005
Filing Date: 2015-04-21
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor layer having a first conductivity type; a first control electrode extending within the semiconductor layer from a surface of the semiconductor layer; a first insulating layer provided between the first control electrode and the semiconductor layer; a second control electrode provided on the semiconductor layer, and electrically connected to the first control electrode; a second insulating layer provided between the second control electrode and the semiconductor layer; a first semiconductor region of a second conductivity type selectively provided in the semiconductor layer at the surface of the semiconductor layer except for a portion of the semiconductor layer under the second control electrode; a second semiconductor region of the first conductivity type provided selectively in the first semiconductor region at a surface of the first semiconductor region and in contact with the first insulating layer; a third semiconductor region of the second conductivity type and provided selectively in the first semiconductor region at the surface of the first semiconductor region and adjacent to the second semiconductor region, part of the third semiconductor region being provided between the second semiconductor region and the portion of the semiconductor layer under the second control electrode; a first electrode connected electrically to the semiconductor layer; and a second electrode connected electrically to the second semiconductor region and the third semiconductor region.