Semiconductor memory device having a redundancy circuit

Details Semiconductor memory device having a redundancy circuit Semiconductor memory device having a redundancy circuit

1985-08-07

1987-10-20

Fears, Terrell W.

Static information storage and retrieval

Read/write circuit

Bad bit

365210, 365189, G11C 1140

Patent

active

047018879

ABSTRACT:
A semiconductor memory device includes a random-access memory which has at least one redundancy column for replacing a defective column; a serial output circuit receives data read out in parallel from the random-access memory and serially outputs the received data redundancy circuit replaces data of the defective column with data from the redundancy column.

REFERENCES:
patent: 4571706 (1986-02-01), Iwahashi
patent: 4577294 (1986-03-01), Brown et al.
patent: 4604730 (1986-08-01), Yoshida

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