Page — EXE erase algorithm for flash memory

Details Page — EXE erase algorithm for flash memory Page — EXE erase algorithm for flash memory

2004-09-22

2008-08-19

Trimmings, John P (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C714S030000, C714S718000, C714S719000, C714S721000, C714S734000, C714S745000, C714S723000, C714S799000, C324S765010, C365S185220, C365S201000, C365S185010, C365S185240, C365S185300, C365S185330

Reexamination Certificate

active

07415646

ABSTRACT:
Methods of performing a sector erase of flash memory devices incorporating built-in self test circuitry are provided. The present invention employs an interactive verification and sector erase algorithm to verify and repeatedly erase the sector until a portion of the groups of each page of the sector are erased or a first maximum number of erase pulses is achieved. The algorithm further includes a word verification and erase operation that sequentially verifies and erases each word of the sector until each word is erased or a second maximum number of erase pulses is achieved. The second maximum number of erase pulses may be based on a function of the first maximum number of erase pulses. The second maximum number of erase pulses may be input to the sector erase algorithm as a multi-bit code. The second maximum number of erase pulses and conversion of the multi-bit code may be based on a binary multiple of the first maximum number of erase pulses.

REFERENCES:
patent: 6512702 (2003-01-01), Yamamura et al.
patent: 6618293 (2003-09-01), Keays
patent: 6618294 (2003-09-01), Keays
patent: 6651202 (2003-11-01), Phan
patent: 6665214 (2003-12-01), Cheah et al.
patent: 6687862 (2004-02-01), Martinez
patent: 6981188 (2005-12-01), Galzur et al.
patent: 7117402 (2006-10-01), Di Zenzo et al.
patent: 7161835 (2007-01-01), Shiga
patent: 2002/0031026 (2002-03-01), Kobayashi
patent: 2002/0126539 (2002-09-01), Roohparvar
patent: 2002/0154547 (2002-10-01), Hirano
patent: 2003/0002347 (2003-01-01), Seki et al.
patent: 2003/0067805 (2003-04-01), Roohparvar
patent: 2003/0076125 (2003-04-01), McCord
patent: 2005/0219909 (2005-10-01), Futatsuyama et al.

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