Patent ID: 7585731

Claim:
A method of manufacturing a semiconductor integrated circuit device, comprising steps of: providing a substrate with projecting island regions formed in stripes, with first regions of a main surface of the substrate adjacent to the projecting island regions and with a conductive film covering the projecting island regions and the first regions, wherein an insulating film is formed between the projecting island regions and the conductive film, and wherein the projecting island regions extend in a first direction in a stripe, respectively; performing anisotropic etching of the conductive film by using a mask covering portions of the conductive film so as to form conductive lines on side surfaces of the projecting island regions and the portions of the conductive film integrated with the conductive lines; and removing parts of the conductive lines in each of the projecting island regions, wherein the conductive lines are adapted to serve as a common gate electrode for MISFETs arranged, in the first direction, adjacent to each other.