Patent ID: 9450026
Filing Date: 2016-09-20
CPC Classification: H01L

Claim Text:
1. A semiconductor device, comprising: a first semiconductor layer; at least two control electrodes each extending in a first direction the first semiconductor layer being provided between the at least two control electrodes and extending in a second direction crossing the first direction, the first semiconductor layer being disposed between the at least two control electrodes in a third direction, the third direction crossing a plane that includes the first direction and the second direction; an insulating film disposed between the at least two control electrodes in the third direction and covering a side surface of the first semiconductor layer, the side surface of the first semiconductor layer including at least one curved surface swelling in a direction from a center of the first semiconductor layer to the insulating film; a first wiring extending in the third direction, the first semiconductor layer being provided on the first wiring and electrically connected to the first wiring; a second wiring provided on the first semiconductor layer and extending in the second direction, the second wiring electrically connected to the first semiconductor layer; and a second semiconductor layer provided between the at least two control electrodes and arranged in the first direction with the first semiconductor layer, wherein the insulating film includes a first portion provided between the first semiconductor layer and each of the at least two control electrodes, and a second portion provided between the first semiconductor layer and the second semiconductor layer.