Semiconductor memory device having redundant memory cells and ci

Details Semiconductor memory device having redundant memory cells and ci Semiconductor memory device having redundant memory cells and ci

1993-09-29

1995-06-13

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

Bad bit

36518904, 371 103, G11C 700

Patent

active

054249872

ABSTRACT:
The semiconductor memory device includes at least one pair of redundant digit lines (RD,RDb), first input/output lines (IO,IOb) connected to a pair of digit lines (D,Db) via a respective sense amplifier (SA) and a switch (SW), second input/output lines (IO',IOb')connected to the redundant digit line pair (RD,RDb) via a sense amplifier (RSA) and switch (RSW), and selective amplifier means (IOSW, IOSW', RIOSW, RIOSW') for amplifying second input/output lines when redundant digit lines are selected.
With this configuration, even when the redundant digit line pair is substituted for the digit line pair, it is possible to execute the redundancy operation by mere translation between these input/output line pairs.

REFERENCES:
patent: 4601019 (1986-07-01), Shah et al.
patent: 4603404 (1986-07-01), Yamauchi
patent: 4691300 (1987-09-01), Pelley
patent: 4829480 (1989-05-01), Seo
patent: 4833652 (1989-05-01), Isobe
patent: 4914632 (1990-04-01), Fujishima
patent: 5021944 (1991-06-01), Sasaki et al.
patent: 5083294 (1992-01-01), Okajima
patent: 5113374 (1992-05-01), Matsui
patent: 5134585 (1992-07-01), Murakami
patent: 5293348 (1994-03-01), Abe

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