Patent ID: 7888772

Claim:
A semiconductor device comprising: a fuse transistor for fuse programming; and a fuse block connected to the fuse transistor, wherein the fuse block comprises a fuse line and a heat spreading structure connected to the fuse line wherein the fuse line includes a fuse link disposed between a first node and a second node, and comprises a first end connected to the first node and a second end connected to the second node, wherein a length of the fuse link extends from the first node to the second node and a width of the fuse link extends in a direction perpendicular to the length of the fuse link, wherein the heat spreading structure is connected to the fuse link and comprises at least a first portion and a second portion, wherein the first portion of the heat spreading structure is connected to the fuse link, and extends in the direction perpendicular to the length of the fuse link and beyond a first surface and an opposite surface of the fuse link from a location Corresponding to a midpoint between the first and second ends of the fuse link, wherein the first portion of the heat spreading structure includes a first end and a second end, and wherein the second portion of the heat spreading structure connects to the first portion at the first end of the first portion and extends in a direction perpendicular to the first portion, and wherein the heat spreading structure comprises a ring structure surrounding the fuse line.