Auxiliary decoder for semiconductor memory device

Details Auxiliary decoder for semiconductor memory device Auxiliary decoder for semiconductor memory device

1984-02-16

1987-02-03

Moffitt, James W.

Static information storage and retrieval

Addressing

365200, 307463, G11C 800

Patent

active

046412867

ABSTRACT:
A semiconductor memory device in which at least a line decoder or a column decoder in multiplex form is provided to select one line selection signal or column selection signal. When the line decoder or column decoder is defective, or when the word line or bit line associated with the line decoder or column decoder involves a defective bit, the defective line decoder, column decoder, word line or bit line is inactivated. The inactivated line decoder or column decoder is replaced with an auxiliary line decoder or column decoder.

REFERENCES:
patent: 4228528 (1980-10-01), Cenker et al.
patent: 4281398 (1981-07-01), McKenny et al.
patent: 4365319 (1982-12-01), Takemae
patent: 4485459 (1984-11-01), Venkateswaran
patent: 4494220 (1985-01-01), Dumbri et al.

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