Patent ID: 8421186
Filing Date: 2013-04-16
Classification: G11C,H01L

Abstract:
1. A structure comprising an electrically programmable fuse (eFuse), said eFuse comprising an integral assembly of a metal strip, a first metal line portion, and a second metal line portion without an interface thereamongst, wherein said integral assembly is embedded in a wiring level dielectric material layer, a first end of said metal strip is adjoined to said first metal line portion, a second end of said metal strip is adjoined to said second metal line portion, said first metal line portion and said second metal line portion have widths that are greater than a strip width of said metal strip, and said first metal line portion and said second metal line portion collectively block all line-of-sight horizontal directions from an entirety of sidewalls of said metal strip, wherein sidewalls of said metal strip are parallel to a first sidewall of said first metal line portion and a second sidewall of said second metal line portion, and an entirety of a first volume between one of said sidewalls of said metal strip and said first sidewall consists of a first portion of said wiring level dielectric material layer, and an entirety of a second volume between another of said sidewalls of said metal strip and said second sidewall consists of a second portion of said wiring level dielectric layer.