Patent ID: 7566594

Claim:
A fabricating method of a semiconductor device comprising: defining a fuse region and a wiring region on a base to form a fuse in the fuse region of the base; forming a first insulation film on the base and the fuse; forming a first contact opening through the first insulation film in the wiring region; forming a second insulation film on a first plug and the first insulation film; forming a second contact opening and a stopper opening through the second insulation film so as to respectively expose a surface of the first plug, and a surface of the first insulation film over the fuse region; filling, with a conductive material, the second contact opening to form a second plug, and the stopper opening to form a stopper film, the second plug being stacked directly on the first plug to form a single plug; forming a wiring pattern on the second insulation film in the wiring region; forming an interlayer insulation film on the stopper film, the wiring pattern and the second insulation film; exposing the stopper film by removing the interlayer insulation film in the fuse region by etching; and removing the stopper film by etching.