Erase verification method of flash memory by selectively...

Details Erase verification method of flash memory by selectively... Erase verification method of flash memory by selectively...

2010-01-19

2011-10-25

Tran, Andrew Q (Department: 2824)

Static information storage and retrieval

Floating gate

Disturbance control

C365S185220, C365S185330, C365S185290, C365S185120, C365S185110

Reexamination Certificate

active

08045374

ABSTRACT:
A suitable erase verification (ERSV) method of a flash memory apparatus is provided, which is different from the conventional ERSV method. That is, by managing the ERSV operation on the flash memory after at least once of erase operation, a flash memory controller in the flash memory apparatus selectively assigns at least one of de-selected sectors instead of all of the de-selected sectors to perform the ERSV. Therefore, by managing the ERSV operation on the flash memory, the time for the ERSV operation thereon is reduced.

REFERENCES:
patent: 5359558 (1994-10-01), Chang et al.
patent: 7468916 (2008-12-01), Chen
patent: 7835201 (2010-11-01), De Sandre et al.
patent: 2007/0279999 (2007-12-01), Watanabe et al.

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