Patent ID: 7538410

Claim:
A fuse structure with a fuse window wherein a thickness-wise direction is perpendicular to the fuse window, comprising: a first fuse unit, comprising a first portion and a second portion coplanar therewith; a second fuse unit, comprising a third portion and a fourth portion non-coplanar therewith, wherein the third portion overlaps the first portion essentially in the thickness-wise direction, and the third portion connects the fourth portion through a first plug; a third fuse unit, comprising a fifth portion and a sixth portion coplanar therewith; and a fourth fuse unit, comprising a seventh portion and a eighth portion non-coplanar therewith, wherein the eighth portion overlaps the sixth portion essentially in the thickness-wise direction, and the eighth portion connects the seventh portion through a second plug; wherein the fourth portion and the seventh portion are arranged between the first fuse unit and the third fuse unit wherein the first, fifth and seventh portions are coplanar with each other.