Flash memory data correction and scrub techniques

Details Flash memory data correction and scrub techniques Flash memory data correction and scrub techniques

2010-11-12

2011-11-01

Luu, Pho M (Department: 2824)

Static information storage and retrieval

Floating gate

Particular connection

C365S185230, C365S230030

Reexamination Certificate

active

08050095

ABSTRACT:
In order to maintain the integrity of data stored in a flash memory that are susceptible to being disturbed by operations in adjacent regions of the memory, disturb events cause the data to be read, corrected and re-written before becoming so corrupted that valid data cannot be recovered. The sometimes conflicting needs to maintain data integrity and system performance are balanced by deferring execution of some of the corrective action when the memory system has other high priority operations to perform. In a memory system utilizing very large units of erase, the corrective process is executed in a manner that is consistent with efficiently rewriting an amount of data much less than the capacity of a unit of erase.

REFERENCES:
patent: 4139911 (1979-02-01), Sciulli et al.
patent: 4218764 (1980-08-01), Furuta et al.
patent: 4253059 (1981-02-01), Bell et al.
patent: 4460982 (1984-07-01), Gee et al.
patent: 4612630 (1986-09-01), Rosier
patent: 4694454 (1987-09-01), Matsuura
patent: 4703196 (1987-10-01), Arakawa
patent: 4703453 (1987-10-01), Shinoda et al.
patent: 4733394 (1988-03-01), Giebel
patent: 4763305 (1988-08-01), Kuo
patent: 4779272 (1988-10-01), Kohda et al.
patent: 4799195 (1989-01-01), Iwahashi et al.
patent: 4809231 (1989-02-01), Shannon et al.
patent: 4827450 (1989-05-01), Kowalski
patent: 4937787 (1990-06-01), Kobatake
patent: 4962322 (1990-10-01), Chapman
patent: 4964079 (1990-10-01), Devin
patent: 4975883 (1990-12-01), Baker et al.
patent: 4980859 (1990-12-01), Guterman et al.
patent: 5043940 (1991-08-01), Harari
patent: 5052002 (1991-09-01), Tanagawa
patent: 5065364 (1991-11-01), Atwood et al.
patent: 5070032 (1991-12-01), Yuan et al.
patent: 5095344 (1992-03-01), Harari
patent: 5119330 (1992-06-01), Tanagawa
patent: 5122985 (1992-06-01), Santin
patent: 5132928 (1992-07-01), Hayashikoshi et al.
patent: 5132935 (1992-07-01), Ashmore, Jr.
patent: 5151906 (1992-09-01), Sawada
patent: 5157629 (1992-10-01), Sato et al.
patent: 5172338 (1992-12-01), Mehrotra et al.
patent: 5172339 (1992-12-01), Noguchi et al.
patent: 5200922 (1993-04-01), Rao
patent: 5200959 (1993-04-01), Gross et al.
patent: 5239505 (1993-08-01), Fazio et al.
patent: 5262984 (1993-11-01), Noguchi et al.
patent: 5263032 (1993-11-01), Porter et al.
patent: 5270551 (1993-12-01), Kamimura et al.
patent: 5270979 (1993-12-01), Harari et al.
patent: 5278794 (1994-01-01), Tanaka et al.
patent: 5313421 (1994-05-01), Guterman et al.
patent: 5313427 (1994-05-01), Schreck et al.
patent: 5315541 (1994-05-01), Harari et al.
patent: 5321655 (1994-06-01), Iwahashi et al.
patent: 5327383 (1994-07-01), Merchant et al.
patent: 5335198 (1994-08-01), Van Buskirk et al.
patent: 5341334 (1994-08-01), Maruyama
patent: 5343063 (1994-08-01), Yuan et al.
patent: 5347489 (1994-09-01), Merchant et al.
patent: 5365486 (1994-11-01), Schrek
patent: 5377147 (1994-12-01), Merchant et al.
patent: 5394359 (1995-02-01), Kowalski
patent: 5404485 (1995-04-01), Ban
patent: 5450363 (1995-09-01), Christopherson et al.
patent: 5465236 (1995-11-01), Naruke
patent: 5475693 (1995-12-01), Christopherson et al.
patent: 5504760 (1996-04-01), Harari et al.
patent: 5523972 (1996-06-01), Rashid et al.
patent: 5530705 (1996-06-01), Malone, Sr.
patent: 5532962 (1996-07-01), Auclair et al.
patent: 5570315 (1996-10-01), Tanaka et al.
patent: 5583812 (1996-12-01), Harari
patent: 5621682 (1997-04-01), Tanzawa et al.
patent: 5648934 (1997-07-01), O'Toole
patent: 5652720 (1997-07-01), Aulas et al.
patent: 5657332 (1997-08-01), Auclair et al.
patent: 5661053 (1997-08-01), Yuan
patent: 5675537 (1997-10-01), Bill et al.
patent: 5689465 (1997-11-01), Sukegawa et al.
patent: 5699297 (1997-12-01), Yamazaki et al.
patent: 5703506 (1997-12-01), Shook et al.
patent: 5712815 (1998-01-01), Bill et al.
patent: 5715193 (1998-02-01), Norman
patent: 5717632 (1998-02-01), Richart et al.
patent: 5751639 (1998-05-01), Ohsawa
patent: 5761125 (1998-06-01), Himeno
patent: 5774397 (1998-06-01), Endoh et al.
patent: 5798968 (1998-08-01), Lee et al.
patent: 5835413 (1998-11-01), Hurter et al.
patent: 5889698 (1999-03-01), Miwa et al.
patent: 5890192 (1999-03-01), Lee et al.
patent: 5905673 (1999-05-01), Khan
patent: 5909449 (1999-06-01), So et al.
patent: 5930167 (1999-07-01), Lee et al.
patent: 5937425 (1999-08-01), Ban
patent: 5963473 (1999-10-01), Norman
patent: 6046935 (2000-04-01), Takeuchi et al.
patent: 6145051 (2000-11-01), Estakhri et al.
patent: 6151246 (2000-11-01), So et al.
patent: 6199139 (2001-03-01), Katayama et al.
patent: 6215697 (2001-04-01), Lu et al.
patent: 6222762 (2001-04-01), Guterman et al.
patent: 6222768 (2001-04-01), Hollmer et al.
patent: 6345001 (2002-02-01), Mokhlesi
patent: 6415352 (2002-07-01), Asami et al.
patent: 6426893 (2002-07-01), Conley et al.
patent: 6456528 (2002-09-01), Chen
patent: 6522580 (2003-02-01), Chen et al.
patent: 6560152 (2003-05-01), Cernea
patent: 6567307 (2003-05-01), Estakhri
patent: 6678785 (2004-01-01), Lasser
patent: 6728134 (2004-04-01), Ooishi
patent: 6760255 (2004-07-01), Conley et al.
patent: 6763424 (2004-07-01), Conley
patent: 6772274 (2004-08-01), Estakhri
patent: 6807101 (2004-10-01), Ooishi et al.
patent: 6839281 (2005-01-01), Chen et al.
patent: 6912160 (2005-06-01), Yamada
patent: 6925007 (2005-08-01), Harari et al.
patent: 6963505 (2005-11-01), Cohen
patent: 7012835 (2006-03-01), Gonzalez et al.
patent: 7076598 (2006-07-01), Wang
patent: 7224607 (2007-05-01), Gonzalez et al.
patent: 7224611 (2007-05-01), Yamamoto et al.
patent: 7242618 (2007-07-01), Shappir et al.
patent: 7254071 (2007-08-01), Tu et al.
patent: 7330376 (2008-02-01), Chen et al.
patent: 7450425 (2008-11-01), Aritome
patent: 7489549 (2009-02-01), Mokhlesi
patent: 7518919 (2009-04-01), Gonzalez et al.
patent: 7613043 (2009-11-01), Cornwell et al.
patent: 7630254 (2009-12-01), Lutze
patent: 7631245 (2009-12-01), Lasser
patent: 7716538 (2010-05-01), Gonzalez et al.
patent: 7835209 (2010-11-01), Park et al.
patent: 7886212 (2011-02-01), Lasser
patent: 2002/0048202 (2002-04-01), Higuchi
patent: 2003/0086293 (2003-05-01), Gongwer et al.
patent: 2005/0073884 (2005-04-01), Gonzalez et al.
patent: 2006/0039196 (2006-02-01), Gorobets et al.
patent: 2006/0062048 (2006-03-01), Gonzalez et al.
patent: 2006/0233023 (2006-10-01), Lin et al.
patent: 2007/0211532 (2007-09-01), Gonzalez et al.
patent: 2008/0158968 (2008-07-01), Moogat et al.
patent: 2008/0158969 (2008-07-01), Moogat et al.
patent: 2008/0294813 (2008-11-01), Gorobets
patent: 2008/0294814 (2008-11-01), Gorobets
patent: 2009/0187785 (2009-07-01), Gonzalez et al.
patent: 0 791 933 BI (1999-06-01), None
patent: 1 667 014 (2006-06-01), None
patent: 2289779 (1995-11-01), None
patent: 3-288400 (1991-12-01), None
patent: 8-077785 (1996-03-01), None
patent: 8-147988 (1996-06-01), None
patent: 8-279295 (1996-10-01), None
patent: 8-297987 (1996-11-01), None
patent: 09-128165 (1997-05-01), None
patent: 9-306182 (1997-11-01), None
patent: 2000-187992 (2000-07-01), None
patent: 2002-318729 (2002-12-01), None
patent: 2003-058432 (2003-02-01), None
patent: WO 90/12400 (1990-10-01), None
patent: WO 96/24138 (1996-08-01), None
patent: WO 01/08015 (2001-02-01), None
patent: WO 01/22232 (2001-03-01), None
patent: WO 02/058074 (2002-07-01), None
patent: WO 2005/036401 (2005-04-01), None
Lee, E.K.F., et al., “Error Correction Technique for Multivalued MOS Memory,”Electronic Letters, vol. 27, No. 15 (Jul. 19, 1991) pp. 1321-1323.
EPO, “Search Report and Examiner's Preliminary Opinion,” corresponding in European Patent Application No. 07 015 342.4 on Sep. 18, 2007, 8 pages.
China State Intellectual Property Office, “Office Action,” corresponding Chinese Patent Application No. 200480033197.3, mailed on May 9, 2008, 8 pages (including translation.).
China State Intellectual Property Office, “Office Action,” corresponding Chinese Patent Applcation No. 200480033197.3, mailed on Jan. 9, 2009, 7 pages (including translation.).
Office Action for Chinese Patent Application No. 200910160836.7 dated Apr. 20, 2010, 5 pages.
Office Action for U.S. Appl. No. 11/748,077 mailed Ma

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