Patent ID: 8629049
Filing Date: 2014-01-14
Classification: H01L

Abstract:
1. A fabrication method of an electrically programmable fuse, the method comprising: depositing a polysilicon layer on a substrate; patterning an anode contact region, a cathode contact region and a fuse link conductively connecting the cathode contact region with the anode contact region, which is programmable by applying a programming current; depositing a silicide layer on the polysilicon layer; and forming a plurality of anisometric contacts on the silicide layer of the cathode contact region and the anode contact region in a predetermined configuration, respectively, wherein a width of the anode and cathode contact regions is less than a length of each anisometric contact in a longitudinal direction of the electrically programmable fuse, and wherein the width of the anode and cathode contact regions refers to a dimension perpendicular to the longitudinal direction and also parallel to a plane of the substrate.