Phase-change random access memory

Details Phase-change random access memory Phase-change random access memory

2011-06-14

2011-06-14

Elms, Richard (Department: 2824)

Static information storage and retrieval

Systems using particular element

Amorphous

C365S046000, C365S148000, C365S225700

Reexamination Certificate

active

07961508

ABSTRACT:
A phase-change random access memory includes a memory block including a plurality of memory columns corresponding to the same column address and using different input/output paths; a redundancy memory block including a plurality of redundancy memory columns using different input/output paths; and an input/output controller repairing at least one of the plurality of memory columns using at least one of the plurality of redundancy memory columns, and controlling the number of memory columns simultaneously repaired using redundancy memory columns in response to an input/output repair mode control signal.

REFERENCES:
patent: 5837564 (1998-11-01), Sandhu et al.
patent: 5901105 (1999-05-01), Ong et al.
patent: 5999480 (1999-12-01), Ong et al.
patent: 2002/0000837 (2002-01-01), Keeth et al.
patent: 2003/0115518 (2003-06-01), Kleveland et al.

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