Patent ID: 9305879
Filing Date: 2016-04-05
CPC Classification: H01L

Claim Text:
1. An e-fuse structure comprising: a fuse link having a first region made of a first conductor and a first liner, and a second region made of a second conductor and a second liner, the first conductor and the second conductor are separated by both the first liner and the second liner such that a distance between the first conductor and the second conductor is approximately equal to a wall thickness of the first liner plus a wall thickness of the second liner, wherein the first conductor and the second conductor are in the same wiring level, wherein the first conductor has a higher electrical resistance than the second conductor, wherein the first conductor has a higher resistance to electromigration than the second conductor, wherein the second conductor is a metal alloy, wherein the first region and the second region have a common width, and wherein the length of the first region is longer than the length of the second region.