Semiconductor memory for relieving a defective bit

Details Semiconductor memory for relieving a defective bit Semiconductor memory for relieving a defective bit

2006-04-06

2009-11-24

Hoang, Huan (Department: 2827)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S185090, C365S210100

Reexamination Certificate

active

07623399

ABSTRACT:
A semiconductor memory has a memory unit including a regular cell array having a plurality of memory cells and a decoder for decoding an input address and selecting a memory cell corresponding to the input address in the regular cell array, in which an access operation is performed to the selected memory cell; a defective address storage section which stores a defective address corresponding to a defective bit in the regular cell array; and a replacement address storage section which stores a replacement address corresponding to a replacement bit in the regular cell array. When a supply address supplied to the memory unit matches the defective address, the replacement address, in place of the supply address, is supplied to the memory unit as the input address, according to which the access operation is performed.

REFERENCES:
patent: 5657281 (1997-08-01), Rao
patent: 6202180 (2001-03-01), Nose
patent: 6212118 (2001-04-01), Fujita
patent: 6414885 (2002-07-01), Nagamatsu et al.
patent: 2-206286 (1990-08-01), None
patent: 5-189327 (1993-07-01), None
patent: 11-7761 (1999-01-01), None
patent: 2001-189094 (2001-07-01), None
patent: 57-064395 (2002-04-01), None
patent: 2002-298596 (2002-10-01), None

Affiliated with

Also associated with

Rating

Semiconductor memory for relieving a defective bit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor memory for relieving a defective bit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory for relieving a defective bit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4092920