Method of constructing a fuse for a semiconductor device and circuit using same

摘要

A method for providing a fuse apparatus for a semiconductor device includes providing at least one fuse portion of the fuse apparatus with at least two fuses connected in series. A circuit, such as a redundancy decoder, is adapted to utilize a fuse apparatus including at least one fuse portion having a plurality of fuses connected in series. The fuse apparatus is preferably provided with polysilicon fuses which are cut using a laser beam cutting device. The fuse apparatus provides an increased probability of accurately cutting a fuse portion of a fuse means necessary to effect a proper repair of the circuit and to improve the semiconductor circuit operational reliability.