Redundancy circuit for NAND flash memory device

Details Redundancy circuit for NAND flash memory device Redundancy circuit for NAND flash memory device

2007-06-26

2007-06-26

Hur, J. H. (Department: 2824)

Static information storage and retrieval

Floating gate

Particular connection

C365S200000, C365S189050, C365S185170, C365S049130

Reexamination Certificate

active

11010515

ABSTRACT:
A redundancy circuit for a NAND flash memory device reduces a test time and production time of the device, by performing a redundancy operation through a repair select unit using a cam cell. In addition, the redundancy circuit employs a repair method using a redundancy cam which can perform the repair operation much faster than a general repair method using fuse cutting.

REFERENCES:
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patent: 5347484 (1994-09-01), Kwong et al.
patent: 5434814 (1995-07-01), Cho et al.
patent: 6307787 (2001-10-01), Al-Shamma
patent: 6813184 (2004-11-01), Lee
patent: 2003/0133340 (2003-07-01), Lee
patent: 2002-0069731 (2002-09-01), None
patent: 2003-0020410 (2003-03-01), None
Office action for Korean patent application No. 2004-33199 filed May 11, 2004.

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