Semiconductor memory

Details Semiconductor memory Semiconductor memory

2005-02-01

2005-02-01

Moazzami, Nasser (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S005000, C365S185250, C365S222000

Reexamination Certificate

active

06851017

ABSTRACT:
The present invention provides a semiconductor memory capable of shortening a refresh cycle time and reducing power consumption at refresh. The semiconductor memory includes an address input circuit for generating each of internal address signals, a redundant judgement circuit for receiving the internal address signal therein and determining whether the corresponding address corresponds to an address for a defective word line of a plurality of normal word lines, and an address counter for generating refresh address signals for sequentially refreshing the plurality of normal word lines and redundant word lines. The redundant judgment circuit is deactivated upon refresh.

REFERENCES:
patent: 6115302 (2000-09-01), Proebsting
patent: 6134176 (2000-10-01), Proebsting
patent: 6212118 (2001-04-01), Fujita
patent: 61-71491 (1984-09-01), None

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