Input/output selection circuit of column repair

Details Input/output selection circuit of column repair Input/output selection circuit of column repair

1992-12-29

1996-06-04

Beausoliel, Jr., Robert W.

Excavating

G11C 2900

Patent

active

055241158

ABSTRACT:
An Input/Output selection circuit of column repair which selects only one Input/Output piece from an n-piece Input/Output decoder circuit according to the state of an m-piece selective Input/Output fuse from a selective Input/Output circuit and which selects only the failed Input/Output from n-pieces of Input/Output with one spare column, where m, n are integers, and n=2.sup.m. Only 0-3 piece(s) of fuse is cut in the case where there are 8 pieces of Input/Output.

REFERENCES:
patent: 4566081 (1986-01-01), Ochii
patent: 4773046 (1988-09-01), Akaogi et al.
patent: 5134585 (1992-07-01), Murakami et al.
patent: 5224071 (1993-07-01), O'Connell et al.
patent: 5227997 (1993-07-01), Kikuda et al.

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