Flexible row redundancy system

Details Flexible row redundancy system Flexible row redundancy system

2008-07-22

2008-07-22

Lamarre, Guy J (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

Reexamination Certificate

active

07404113

ABSTRACT:
A row redundancy system is provided for replacing faulty wordlines of a memory array having a plurality of banks. The row redundancy system includes a remote fuse bay storing at least one faulty address corresponding to a faulty wordline of the memory array; a row fuse array for storing row fuse information corresponding to at least one bank of the memory array; and a copy logic module for copying at least one faulty address stored in the remote fuse bay into the row fuse array; the copy logic module is programmed to copy the at least one faulty address into the row fuse information stored in the row fuse array corresponding to a predetermined number of banks in accordance with a selectable repair field size.

REFERENCES:
patent: 4598388 (1986-07-01), Anderson
patent: 6154851 (2000-11-01), Sher et al.
patent: 6163489 (2000-12-01), Blodgett
patent: 6505314 (2003-01-01), Daehn

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