Semiconductor memory and manufacturing method thereof

Details Semiconductor memory and manufacturing method thereof Semiconductor memory and manufacturing method thereof

2011-03-08

2011-03-08

Dinh, Son (Department: 2824)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S189070, C365S201000, C365S203000

Reexamination Certificate

active

07903484

ABSTRACT:
A semiconductor memory is provided which performs redundancy on a memory cell by a given bit unit, the semiconductor memory includes: a comparator circuit that compares an input address and a redundancy address; a judgment circuit that judges whether to perform the redundancy based on a compared result, wherein the judgment circuit outputs a plurality of redundancy judgment signals that indicates whether to perform redundancy for each portion obtained by dividing the given bit unit by n which is an integer equal to or greater than two.

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