Method for reading non-volatile memory cells

Details Method for reading non-volatile memory cells Method for reading non-volatile memory cells

2007-08-14

2007-08-14

Ho, Hoai V. (Department: 2827)

Static information storage and retrieval

Floating gate

Multiple values

C365S185200, C365S185280, C365S185290

Reexamination Certificate

active

11007332

ABSTRACT:
A method includes changing a read reference level for reading a group of memory cells as a function of changes in a threshold voltage distribution of a different group of memory cells. The changing step includes determining a history read reference level for correct reading of at least one history cell, selecting a memory read reference level according to the first read reference level, and reading non-volatile memory array cells associated with the at least one history cell using the memory read reference level.

REFERENCES:
patent: 4342102 (1982-07-01), Puar
patent: 4388705 (1983-06-01), Sheppard
patent: 4389705 (1983-06-01), Sheppard
patent: 5027321 (1991-06-01), Park
patent: 5142496 (1992-08-01), Van Buskirk
patent: 5241497 (1993-08-01), Komarek
patent: 5276646 (1994-01-01), Kim et al.
patent: 5289412 (1994-02-01), Frary et al.
patent: 5305262 (1994-04-01), Yoneda
patent: 5335198 (1994-08-01), Van Buskirk et al.
patent: 5345425 (1994-09-01), Shikatani
patent: 5361343 (1994-11-01), Kosonocky et al.
patent: 5381374 (1995-01-01), Shiraishi et al.
patent: 5418743 (1995-05-01), Tomioka et al.
patent: 5450341 (1995-09-01), Sawada et al.
patent: 5450354 (1995-09-01), Sawada et al.
patent: 5477499 (1995-12-01), Van Buskirk et al.
patent: 5508968 (1996-04-01), Collins et al.
patent: 5521870 (1996-05-01), Ishikawa
patent: 5537358 (1996-07-01), Fong
patent: 5544116 (1996-08-01), Chao et al.
patent: 5568085 (1996-10-01), Eitan et al.
patent: 5583808 (1996-12-01), Brahmbhatt
patent: 5627790 (1997-05-01), Golla et al.
patent: 5633603 (1997-05-01), Lee
patent: 5657332 (1997-08-01), Auclair et al.
patent: 5694356 (1997-12-01), Wong et al.
patent: 5712815 (1998-01-01), Bill et al.
patent: 5717632 (1998-02-01), Richart et al.
patent: 5748534 (1998-05-01), Dunlap et al.
patent: 5754475 (1998-05-01), Bill et al.
patent: 5768193 (1998-06-01), Lee et al.
patent: 5771197 (1998-06-01), Kim
patent: 5784314 (1998-07-01), Sali et al.
patent: 5805500 (1998-09-01), Campardo et al.
patent: 5812456 (1998-09-01), Hull et al.
patent: 5828601 (1998-10-01), Hollmer et al.
patent: 5841700 (1998-11-01), Chang
patent: 5847441 (1998-12-01), Cutter et al.
patent: 5867429 (1999-02-01), Chen et al.
patent: 5886927 (1999-03-01), Takeuchi
patent: 5936888 (1999-08-01), Sugawara
patent: 5940332 (1999-08-01), Artieri
patent: 5946258 (1999-08-01), Evertt et al.
patent: 5949728 (1999-09-01), Liu et al.
patent: 5969993 (1999-10-01), Takeshima
patent: 5982666 (1999-11-01), Campardo
patent: 5986940 (1999-11-01), Atsumi et al.
patent: 6044019 (2000-03-01), Cernea et al.
patent: 6044022 (2000-03-01), Nachumovsky
patent: 6084794 (2000-07-01), Lu et al.
patent: 6108240 (2000-08-01), Lavi et al.
patent: 6118692 (2000-09-01), Banks
patent: 6128226 (2000-10-01), Eitan et al.
patent: 6134156 (2000-10-01), Eitan
patent: 6147904 (2000-11-01), Liron
patent: 6169691 (2001-01-01), Pasotti et al.
patent: 6185143 (2001-02-01), Perner et al.
patent: 6201737 (2001-03-01), Hollmer et al.
patent: 6205056 (2001-03-01), Pan et al.
patent: 6222762 (2001-04-01), Guterman et al.
patent: 6233180 (2001-05-01), Eitan et al.
patent: 6240040 (2001-05-01), Akaogi et al.
patent: 6252799 (2001-06-01), Liu et al.
patent: 6282133 (2001-08-01), Nakagawa et al.
patent: 6285589 (2001-09-01), Klajitanl
patent: 6331950 (2001-12-01), Kuo et al.
patent: 6351415 (2002-02-01), Kushnarenko
patent: 6438035 (2002-08-01), Yamamoto et al.
patent: 6456528 (2002-09-01), Chen
patent: 6469929 (2002-10-01), Kushnarenko et al.
patent: 6469935 (2002-10-01), Hayashi
patent: 6496414 (2002-12-01), Kasa et al.
patent: 6510082 (2003-01-01), Le et al.
patent: 6525969 (2003-02-01), Kurihara et al.
patent: 6529412 (2003-03-01), Chen et al.
patent: 6535434 (2003-03-01), Maayan et al.
patent: 6574139 (2003-06-01), Kurihara
patent: 6594181 (2003-07-01), Yamada
patent: 6636440 (2003-10-01), Maayan et al.
patent: 6639837 (2003-10-01), Takano et al.
patent: 6639849 (2003-10-01), Takahashi et al.
patent: 6643178 (2003-11-01), Kurihara
patent: 6650568 (2003-11-01), Iijima
patent: 6912160 (2005-06-01), Yamada
patent: 6996692 (2006-02-01), Kouno
patent: 2002/0004878 (2002-01-01), Norman
patent: 2002/0071313 (2002-06-01), Takano et al.
patent: 2002/0132436 (2002-09-01), Eliyahu et al.
patent: 2002/0191465 (2002-12-01), Maayan et al.
patent: 2003/0117841 (2003-06-01), Yamashita
patent: 2003/0117861 (2003-06-01), Maayan et al.
patent: 2003/0142544 (2003-07-01), Maayan et al.
patent: 2003/0208663 (2003-11-01), Van Buskirk et al.
patent: 2003/0214844 (2003-11-01), Iijima
patent: 2004/0008541 (2004-01-01), Maayan et al.
patent: 2004/0012993 (2004-01-01), Kurihara
patent: 2004/0013000 (2004-01-01), Toril
patent: 0740307 (1996-10-01), None
patent: 1126468 (2001-08-01), None
patent: 1164597 (2001-12-01), None
patent: 0656628 (2003-04-01), None
patent: 408106791 (1996-04-01), None
patent: 2002216488 (2002-08-01), None
patent: WO 00/46808 (2000-08-01), None
patent: WO 03/036651 (2003-05-01), None
patent: WO 03/063168 (2003-07-01), None
patent: WO 03/088261 (2003-10-01), None

Affiliated with

Also associated with

Rating

Method for reading non-volatile memory cells does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for reading non-volatile memory cells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reading non-volatile memory cells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3884588