Patent ID: 9087727
Filing Date: 2015-07-21
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor body including a conductive film partially filling the groove with an intervention of an insulating film therebetween such that the conductive film terminates at a first intermediate portion of the first side surface between the first upper surface and the bottom surface and at a second intermediate portion of the second side surface between the second upper surface and the bottom surface, a first impurity diffusion region adjacent the first upper surface; a second impurity diffusion region adjacent the second upper surface; and an interlayer dielectric film over the gate electrode in the groove, wherein the gate electrode includes a first gate electrode upper surface, a second gate electrode upper surface, and a step between the first gate electrode upper surface and the second gate electrode upper surface, wherein the second impurity diffusion region does not overlap with the gate electrode, and wherein a top surface of at least a portion of the interlayer dielectric film is lower than a top surface of the first impurity diffusion region.