Patent ID: 7223643
Filing Date: 2007-05-29
Classification: H01L,Y10S

Abstract:
1. A method of manufacturing a semiconductor device, the method comprising: forming a conductive film over a semiconductor with an insulating film therebetween; forming a resist pattern over the conductive film by using one of a photomask having a light shielding portion and a translucent film and a reticle having a light shielding portion and a translucent film, wherein the translucent film is adjacent to the one of the photomask and the reticle, and wherein a thickness of an edge portion of the resist pattern is smaller than a thickness of a middle portion of the resist pattern; forming a gate electrode by etching using the resist pattern, wherein a thickness of an edge portion of the gate electrode is smaller than a thickness of a middle portion of the gate electrode; and introducing an impurity element into the semiconductor with the gate electrode as a mask to form a first impurity region and a second impurity region in the semiconductor, wherein the first impurity region is not overlapped with the gate electrode and the second impurity region is overlapped with the edge portion of the gate electrode.