Patent ID: 7705419

Claim:
A fuse box of a semiconductor device, comprising: a plurality of metal fuses formed on a first interlayer dielectric of a semiconductor substrate, each of the metal fuses including a blowing region and a portion of each of the metal fuses being removed in the blowing region thereof, wherein the blowing region is a region where the metal fuse would be blown and wherein the portion of the metal fuse is removed prior to any blowing of the metal fuse, wherein each metal fuse includes a conductive oxide layer covering the portion of the metal fuse removed in the blowing region so as to form an electrical connection between remaining portions of the metal fuse prior to any blowing, the conductive oxide layer comprising an RuOx layer or an IrOx layer; a second interlayer dielectric formed on the first interlayer dielectric including the conductive oxide layer; and a plurality of plugs formed in the second interlayer dielectric to be respectively brought into contact with remaining portions of the metal fuses that are removed in the blowing regions thereof.