Redundancy circuit

Details Redundancy circuit Redundancy circuit

2006-12-26

2006-12-26

Le, Thong Q. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S225700, C365S189070

Reexamination Certificate

active

07154791

ABSTRACT:
A redundancy circuit for use with a semiconductor memory device is provided. The redundancy circuit includes input address buffers for storing input address bits; fuse boxes for storing repair address bits; a comparator for comparing the input address bits stored in the input address buffers with the repair address bits stored in the fuse boxes; and a redundancy enable determiner for determining whether a redundant memory cell is to be applied to the memory device according to a comparison result of the comparator.

REFERENCES:
patent: 6094382 (2000-07-01), Choi et al.
patent: 6097645 (2000-08-01), Penney et al.
patent: 6118712 (2000-09-01), Park et al.
patent: 6426901 (2002-07-01), Wada
patent: 6536002 (2003-03-01), Kim
patent: 6538934 (2003-03-01), Sakata
patent: 6707730 (2004-03-01), Mori et al.

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