SEMICONDUCTOR MEMORY DEVICE AND OPERATION METHOD THEREOF

摘要

A semiconductor memory device includes a memory cell array including a plurality of memory cells and a plurality of redundancy memory cells, a fuse array to be programmed with information of a defective memory cell among the memory cells of the memory cell array, and a control unit suitable for setting up a program operation section for programming the fuse array in response to an external command, wherein when the control unit sets up the program operation section, the control unit sets up a refresh operation section for refreshing the memory cell array, which is terminated before the program operation section ends without overlapping with the program operation section.

主权项

1. A semiconductor memory device, comprising:
a memory cell array including a plurality of memory cells and a plurality of redundancy memory cells; a fuse array to be programmed with information of a defective memory cell among the memory cells of the memory cell array; and a control unit suitable for setting up a program operation section for programming the fuse array in response to an external command, wherein when the control unit sets up the program operation section, the control unit sets up a refresh operation section for refreshing the memory cell array, which is to be terminated before the program operation section ends without overlapping with the program operation section.