Patent ID: 7268068

Claim:
A method for manufacturing a semiconductor device, comprising; forming elements on a substrate; forming stacked interconnection structure on said elements by sequentially forming interlayer insulating film, interconnection layer and antioxidant layer and repeating these forming at least two times; forming a first protective insulating film on a top antioxidant layer; removing said first protective insulating film and said top antioxidant layer at lead out region of a top interconnection region and fuse blowing region of a top interconnection layer to form a interconnection lead out opening and a fuse blowing opening; forming a lead out electrode in said lead out opening; forming a second protective insulating film having an opening on said first protective insulating film, said opening corresponding to a said fuse blowing opening; and forming a window for fuse blowing by removing a part of said interlayer insulating film using said second protective insulating film as a mask.