Patent ID: 6166421
Filing Date: 2000-12-26
Classification: H01L

Abstract:
A semiconductor fuse formed on a first layer of isolation material, the fuse comprising:a strip of conductive material formed on the first layer of isolation material;a second layer of isolation material formed on the strip of conductive material, the second layer of isolation material having a plurality of openings at each end of the strip of conductive material, the plurality of openings at a first end of the strip of conductive material including a large opening and a plurality of smaller openings;a plurality of contacts that are formed in the plurality of openings to be electrically connected to the strip of conductive material, the plurality of contacts at the first end including a plurality of sidewall contacts formed along the sidewalls of the large opening and a plurality of plug contacts formed in the smaller openings;a first conductive line formed on the second layer of isolation material to be electrically connected to the contacts at the first end of the strip of conductive material;a second conductive line formed on the second layer of isolation material to be electrically connected to the contacts at a second end of strip of conductive material, the second conductive line being spaced apart from the first conductive line; anda first cavity formed between the sidewall contacts in the large opening, and below the first conductive line.