Patent ID: 9171919
Filing Date: 2015-10-27
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising steps of: forming a first insulating film over a semiconductor region; forming a gate electrode over the semiconductor region with the first insulating film interposed therebetween; forming a second insulating film over the gate electrode; forming a sidewall covering a side face of the gate electrode with the second insulating film interposed therebetween; etching a portion of the second insulating film by using the sidewall as a mask; forming a first conductive film covering the gate electrode, the sidewall and the semiconductor region; forming a second conductive film over the first conductive film; forming a resist mask over the second conductive film; etching portions of the second conductive film and the first conductive film to expose at least a portion of the sidewall by using the resist mask; etching the etched second conductive film to form at least one of a source and drain electrodes, wherein the at least one of the source and drain electrodes is electrically connected to the semiconductor region with the first conductive film interposed therebetween.