Patent ID: 9637834
Date: 2017-05-02
CPC Classifications: C25D,H01H,H01L

Claim:
1. A method for fabricating an electrically programmable fuse structure, comprising: providing a substrate; forming an anode and a cathode on the substrate; forming a fuse between the anode and the cathode and having an anode-connecting-end connecting with the anode and a cathode-connecting-end connecting with the cathode over the substrate, wherein the fuse includes a first material layer on the substrate, and a second material layer on the first material layer; and forming a compressive stress region in the second material layer of the cathode-connecting-end, wherein the second material layer of the anode-connecting-end has a tensile stress region, a doping concentration of the compressive stress region is greater than a doping concentration of the tensile stress region and a doping concentration difference between the compressive stress region and the tensile stress region is in a range of approximately 1E15 atom/cm