Apparatus for dynamically repairing a semiconductor memory

Details Apparatus for dynamically repairing a semiconductor memory Apparatus for dynamically repairing a semiconductor memory

2005-04-12

2005-04-12

Phung, Anh (Department: 2824)

Static information storage and retrieval

Read/write circuit

Testing

C365S200000

Reexamination Certificate

active

06879530

ABSTRACT:
An architecture for dynamically repairing a semiconductor memory, such as a Dynamic Random Access Memory (DRAM), includes circuitry for dynamically storing memory element remapping information. Memory is tested for errors by writing, then reading a plurality of memory blocks, such as rows or columns, in parallel. Memory is dynamically reprogrammed in order to remap unused spare memory elements for failed memory elements when errors are detected. Unused spare memory elements are remapped utilizing a circuit that overrides unblown fuses or antifuses.

REFERENCES:
patent: 4459685 (1984-07-01), Sud et al.
patent: 4523313 (1985-06-01), Nibby, Jr. et al.
patent: 4598388 (1986-07-01), Anderson
patent: 4601019 (1986-07-01), Shah et al.
patent: 4686737 (1987-08-01), Fortune
patent: 5031151 (1991-07-01), Fifield et al.
patent: 5257229 (1993-10-01), McClure et al.
patent: 5268866 (1993-12-01), Feng et al.
patent: 5270976 (1993-12-01), Tran
patent: 5287310 (1994-02-01), Schreck et al.
patent: 5293383 (1994-03-01), Knefel
patent: 5355340 (1994-10-01), Coker et al.
patent: 5396124 (1995-03-01), Sawada et al.
patent: 5422850 (1995-06-01), Sukegawa et al.
patent: 5471426 (1995-11-01), McClure
patent: 5471482 (1995-11-01), Byers et al.
patent: 5502674 (1996-03-01), Griffus et al.
patent: 5506959 (1996-04-01), Cockburn
patent: 5511028 (1996-04-01), Nam
patent: 5544106 (1996-08-01), Koike
patent: 5572470 (1996-11-01), McClure et al.
patent: 5572471 (1996-11-01), Proebsting
patent: 5574732 (1996-11-01), Hsieh et al.
patent: 5583463 (1996-12-01), Merritt
patent: 5748543 (1998-05-01), Lee et al.
patent: 5764577 (1998-06-01), Johnston et al.
patent: 5835504 (1998-11-01), Balkin et al.
patent: 5940335 (1999-08-01), Kirihata
patent: 5946246 (1999-08-01), Jun et al.
patent: 5963489 (1999-10-01), Kirihata et al.
patent: 5978297 (1999-11-01), Ingalls
patent: 5978931 (1999-11-01), Kirihata et al.
patent: 6005813 (1999-12-01), Waller et al.
patent: 6064617 (2000-05-01), Ingalls
patent: 6125067 (2000-09-01), Waller et al.
patent: 6182257 (2001-01-01), Gillingham
patent: 6199177 (2001-03-01), Blodgett
patent: 6216241 (2001-04-01), Fenstermaker et al.
patent: 6243301 (2001-06-01), Agata et al.
patent: 6300769 (2001-10-01), Phan
patent: 6330696 (2001-12-01), Zorian et al.
patent: 6343366 (2002-01-01), Okitaka
patent: 6351837 (2002-02-01), Huang et al.

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