Method and apparatus for in-system redundant array repair on...

Static information storage and retrieval – Read/write circuit – Multiplexing

Reexamination Certificate

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Details

C365S189050, C365S200000, C365S201000, C365S225700, C326S009000, C326S010000, C326S016000, C714S006130

Reexamination Certificate

active

11872088

ABSTRACT:
Disclosed is a method of repairing an integrated circuit of the type comprising of a multitude of memory arrays and a fuse box holding control data for controlling redundancy logic of the arrays. The method comprises the steps of providing the integrated circuit with a control data selector for passing the control data from the fuse box to the memory arrays; providing a source of alternate control data, external of the integrated circuit; and connecting the source of alternate control data to the control data selector. The method comprises the further step of, at a given time, passing the alternate control data from the source thereof, through the control data selector and to the memory arrays to control the redundancy logic of the memory arrays.

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