Patent ID: 6835999
Filing Date: 2004-12-28
Classification: H01L

Abstract:
A semiconductor device comprising:a semiconductor substrate; a first metal wiring and a fuse, both being formed as the same level above said semiconductor substrate; a first insulating film deposited above said semiconductor substrate to cover said first metal wiring and said fuse, said first insulating film having a first pad opening arriving at said first metal wiring; a second metal wiring formed at least within said first pad opening, said second metal wiring not extending above said fuse and being formed of a material which is higher in resistance to oxidation or corrosion than that of said first metal wiring; a stopper film formed on said first insulating film as well as on said second metal wiring; and a second insulating film formed above said stopper film; wherein a second pad opening is formed to expose a portion of said second metal wiring by removing said second insulating film and said stopper film, a fuse opening is formed above at least said fuse by removing said second insulating film and said stopper film, and by removing said first insulating film to intermediate in thickness.