Patent ID: 11587641

Abstract:
A fuse fault repair circuit includes a fuse array, a signal storage module, and a scan repair module. The fuse array includes a redundant fuse array and a non-redundant fuse array. When the fuse array is not faulty, the redundant fuse array has no signal output, and the non-redundant fuse array outputs S first logic signals. Each storage unit in the signal storage module is configured to store a first logic signal sent by one fuse unit connected thereto. The scan repair module is configured to scan the storage units in the signal storage module, determine, when a faulty storage unit is scanned, that a first fuse unit connected to the faulty storage unit is faulty, and replace the first fuse unit with a first redundant fuse unit corresponding to the first fuse unit. The first logic signal corresponding to the first redundant fuse unit is a normal signal.