Memory redundancy with programmable non-volatile control

Details Memory redundancy with programmable non-volatile control Memory redundancy with programmable non-volatile control

2005-03-01

2005-03-01

Ton, David (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

C714S718000

Reexamination Certificate

active

06862700

ABSTRACT:
A redundancy scheme for a memory is disclosed that is programmable both before and after the memory device is packaged and/or installed in a system. This is preferably accomplished by using programmable non-volatile memory elements to control the replacement circuitry. Because the programmable memory elements are non-volatile, the desired replacement configuration is not lost during shipping, or if power is lost in a system. By allowing post-packaging replacement of defective memory elements, the overall yield of the device may be improved. By allowing post system installation replacement of defective memory elements, the reliability of many systems may be improved. In addition, the disclosed redundancy scheme allows two or more defective memory elements from different rows or columns to be replaced with memory elements from a single redundant low or column. This provides added flexibility during the replacement process.

REFERENCES:
patent: 4837520 (1989-06-01), Golke et al.
patent: 5146571 (1992-09-01), Logan
patent: 5406565 (1995-04-01), MacDonald
patent: 5495447 (1996-02-01), Butler et al.
patent: 5644529 (1997-07-01), Pascucci et al.
patent: 5677917 (1997-10-01), Wheelus et al.
patent: 5680354 (1997-10-01), Kawagoe
patent: 5796653 (1998-08-01), Gaultier
patent: 5808944 (1998-09-01), Yoshitake et al.
patent: 5841709 (1998-11-01), McClure
patent: 6317846 (2001-11-01), Higgins et al.
patent: 6397349 (2002-05-01), Higgins et al.

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