Semiconductor storage device and operating method therefor

Details Semiconductor storage device and operating method therefor Semiconductor storage device and operating method therefor

2007-10-02

2007-10-02

Elms, Richard T. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S227000, C365S229000

Reexamination Certificate

active

11360593

ABSTRACT:
A semiconductor storage device according to an embodiment of the present invention includes: a plurality of word lines; a plurality of memory cells corresponding to the plurality of word lines; and a refresh circuit for sequentially driving the plurality of word lines to refresh each of the plurality of memory cells based on a timer period, which sets the timer period in accordance with a disturb amount in an active mode upon shift from the active mode to the standby mode.

REFERENCES:
patent: 6879536 (2005-04-01), Lee
patent: 6967886 (2005-11-01), Huang et al.
patent: 7054223 (2006-05-01), Takahashi et al.
patent: 7061818 (2006-06-01), Sunaga et al.
patent: 2002/0001247 (2002-01-01), Kim et al.
patent: WO 02/82454 (2002-03-01), None

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