Patent ID: 6613612
Filing Date: 2003-09-02
Classification: H01L

Abstract:
A method of fabricating a fuse in semiconductor device comprising the steps of:forming a device-isolating layer surrounding an active area on a semiconductor substrate of a first conductive type; forming a MOS transistor having a source and a drain of a second conductive type in the active area; forming a groove on the device-isolating layer to a predetermined depth; forming an insulating interlayer on the substrate including the groove wherein the insulating interlayer replicates a pattern of the groove; depositing barrier metal for a fuse on the insulating interlayer including the replicated groove by sputtering; depositing Al on the barrier metal; forming a wire consisting of the Al and barrier metal by patterning the Al and barrier metal; and forming a fuse layer consisting of the barrier metal by removing the Al of the wire corresponding to the groove.