Patent ID: 8471354

Claim:
An e-fuse structure of a semiconductor device, the e-fuse structure comprising: an anode and a cathode; a fuse part having a depletion region, and an accumulation region bordering the depletion region at a location closer to the anode than the cathode, the fuse part extending longitudinally between and connecting the anode with the cathode, and the atomic flux of the fuse part being maximal at the border between the depletion region and the accumulation region; and a dielectric stressor comprising at least one of: a first dielectric film in contact with the depletion region of the fuse part, terminating on the fuse part at a boundary extending substantially along the border between the depletion region and the accumulation region, and applying a compressive stress to the depletion region, and a second dielectric film in contact with the accumulation region of the fuse part, terminating on the fuse part at a boundary extending substantially along the border between the depletion region and the accumulation region, and applying a tensile stress to the depletion region, wherein the second dielectric film is in direct contact with the first dielectric film and the accumulation region.