Error recovery storage along a nand-flash string

Details Error recovery storage along a nand-flash string Error recovery storage along a nand-flash string

2007-07-06

2011-11-01

Trimmings, John (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S746000, C714S752000, C714S751000, C714S753000, C714S756000, C714S773000, C714S774000, C714S786000, C714S791000, C714S795000, C714S792000, C365S185090

Reexamination Certificate

active

08051358

ABSTRACT:
Apparatus and methods store error recovery data in different dimensions of a memory array. For example, in one dimension, block error correction codes (ECC) are used, and in another dimension, supplemental error correction codes, such as convolutional codes, are used. By using separate dimensions, the likelihood that a defect affects both error recovery techniques is lessened, thereby increasing the probability that error recovery can be performed successfully. In one example, block error correction codes are used for data stored along rows, and this data is stored in one level of multiple-level cells of the array. Supplemental error correction codes are used for data stored along columns, such as along the cells of a string, and the supplemental error correction codes are stored in a different level than the error correction codes.

REFERENCES:
patent: 5942004 (1999-08-01), Cappelletti
patent: 5956743 (1999-09-01), Bruce et al.
patent: 6023781 (2000-02-01), Hazama
patent: 6279133 (2001-08-01), Vafai
patent: 6591394 (2003-07-01), Lee et al.
patent: 6731538 (2004-05-01), Noda
patent: 6732322 (2004-05-01), Miyauchi et al.
patent: 6839870 (2005-01-01), Fanfelle
patent: 6871303 (2005-03-01), Halter
patent: 6895543 (2005-05-01), Hazama
patent: 7184356 (2007-02-01), Noguchi et al.
patent: 7643342 (2010-01-01), Litsyn et al.
patent: 7844879 (2010-11-01), Ramamoorthy et al.
patent: 7904780 (2011-03-01), Brandman
patent: 2002/0120820 (2002-08-01), Higuchi et al.
patent: 2005/0114587 (2005-05-01), Chou et al.
patent: 2006/0221752 (2006-10-01), Fasoli et al.
patent: 2007/0171714 (2007-07-01), Wu et al.
patent: 2007/0171730 (2007-07-01), Ramamoorthy et al.
patent: 2007/0266296 (2007-11-01), Conley
patent: 2008/0137414 (2008-06-01), Park et al.
patent: 2008/0163023 (2008-07-01), Hong et al.
patent: 2008/0168319 (2008-07-01), Lee et al.
patent: 2008/0320361 (2008-12-01), Fukuda et al.
patent: 2009/0013234 (2009-01-01), Radke
patent: 2009/0100307 (2009-04-01), Lee
patent: 2010/0023800 (2010-01-01), Harari et al.
patent: 2010/0115376 (2010-05-01), Shalvi et al.
patent: 2011/0060969 (2011-03-01), Ramamoorthy et al.
patent: 2000149592 (2000-05-01), None
patent: 100766042 (2007-10-01), None
patent: WO 2006070668 (2006-07-01), None
Korean Intellectual Property Office; “Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration”, “Written Opinion of the International Searching Authority”, and “International Search Report” of related PCT application PCT/US/2008/081475, filed Oct. 28, 2008; mailed Feb. 18, 2009; Daejeon, Republic of Korea.
Korean Intellectual Property Office; “Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration”, “Written Opinion of the International Searching Authority”, and “International search report” of related International Application PCT/US2008/081743, filed Oct. 28, 2008; Dated Feb. 19, 2009; Daejeon, Republic of Korea.
The International Bureau of WIPO; International Preliminary Report on Patentability of related PCT Application No. PCT/US2008/068236, filed Jun. 25, 2008; mailing date Jan. 21, 2010; Geneva, Switzerland.
The International Bureau of WIPO; International Preliminary Report on Patentability of related PCT Application No. PCT/US2008/068240, filed Jun. 25, 2008; mailing date Jan. 21, 2010; Geneva, Switzerland.
International search report mailed Dec. 29, 2008 in PCT Application No. PCT/US2008/068240.
International search report mailed Jan. 20, 2009 in PCT Application No. PCT/US2008/068236.
USPTO; Office Action dated Sep. 9, 2010, from related U.S. Appl. No. 11/944,023, filed Nov. 21, 2007.
USPTO; Office Action dated Dec. 9, 2010, from related U.S. Appl. No. 11/944,023, filed Nov. 21, 2007.
USPTO; Office Action dated Jan. 11, 2011, from related U.S. Appl. No. 11/774,377, filed Jul. 6, 2007.
USPTO; Office Action dated May 16, 2011, from related U.S. Appl. No. 11/774,377, filed Jul. 6, 2007.

Affiliated with

Also associated with

Rating

Error recovery storage along a nand-flash string does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Error recovery storage along a nand-flash string, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error recovery storage along a nand-flash string will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4297637