Memory having redundancy circuit

Details Memory having redundancy circuit Memory having redundancy circuit

1987-04-16

1989-07-11

Miller, Stanley D.

Static information storage and retrieval

Read/write circuit

Bad bit

3072021, 307219, 307303, 307449, 307463, 3072001, 371 10, G11C 700, H03K 19094, H03K 19082

Patent

active

048478105

ABSTRACT:
In a semicondutor IC device such as a memory device with circuits to be selected and circuits to select one of these circuits to be selected in response to an input signal, each circuit to be selected is divided into parts but a fuse is provided corresponding to each of the parts such that each of the defective parts can be replaced by redundancy circuit without invalidating the other parts of the same circuit that is replaced.

REFERENCES:
patent: 4613959 (1986-09-01), Jiang
patent: 4701636 (1987-10-01), Millhollan et al.
IBM Tech. Disc. Bul. "Redundant Bit Line Decode Circuit", vol. 18, No. 6, 11/75.

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