Semiconductor memory device capable of relieving defective...

Details Semiconductor memory device capable of relieving defective... Semiconductor memory device capable of relieving defective...

2007-09-12

2010-11-16

Hur, J. H. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S230030, C714S710000, C714S711000

Reexamination Certificate

active

07835206

ABSTRACT:
A semiconductor memory device includes plural banks, defect relief circuits individually provided for these banks, a defective-address storing circuit that stores defective addresses, and a comparing circuit that compares an access-requested address with a defective address. The defective-address storing circuit and the comparing circuit are allocated in common to two banks, respectively. With this arrangement, a chip area can be decreased.

REFERENCES:
patent: 6055196 (2000-04-01), Takai
patent: 2002/0141264 (2002-10-01), Mori et al.
patent: 10-334690 (1998-12-01), None
patent: 2004-158069 (2004-06-01), None
patent: 2006-108394 (2006-04-01), None

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