the present invention provides a fuse structure . the fuse structure comprises a substrate , a plurality of conductive layers , a dielectric layer and a plurality of conductive plugs . the fuse structure includes a plurality of fuse units , with increased the pitch between the fuse units . this structure prevents the fuse structure from failing when both misalignment of the laser beam or thermal scattering of the laser beam damage the second layer of the fuse structure in the laser blow process , which raises reliability and yield .