Static information storage and retrieval – Read/write circuit – Differential sensing
Reexamination Certificate
2005-10-11
2005-10-11
Le, Vu A. (Department: 2824)
Static information storage and retrieval
Read/write circuit
Differential sensing
C365S185030
Reexamination Certificate
active
06954393
ABSTRACT:
A method for reading a bit of a memory cell in a non-volatile memory (NVM) cell array, the method comprising providing a memory cell comprising a bit to be read and at least one other bit not to be read, and reading the bit to be read with respect to a multi-bit reference cell, the reference cell comprising a first bit at a first non-ground programmed state and a second bit at a second non-ground programmed state. Compared with the prior art, the present invention may enable achieving the same sensing accuracy with improved read disturb immunity.
REFERENCES:
patent: 4388705 (1983-06-01), Sheppard
patent: 4389705 (1983-06-01), Sheppard
patent: 4527257 (1985-07-01), Cricchi
patent: 4667217 (1987-05-01), Janning
patent: 5172338 (1992-12-01), Mehrotra et al.
patent: 5241497 (1993-08-01), Komarek
patent: 5289412 (1994-02-01), Frary et al.
patent: 5295108 (1994-03-01), Higa
patent: 5305262 (1994-04-01), Yoneda
patent: 5345425 (1994-09-01), Shikatani
patent: 5349221 (1994-09-01), Shimoji
patent: 5359554 (1994-10-01), Odake et al.
patent: 5418743 (1995-05-01), Tomioka et al.
patent: 5434825 (1995-07-01), Harari
patent: 5450341 (1995-09-01), Sawada et al.
patent: 5450354 (1995-09-01), Sawada et al.
patent: 5521870 (1996-05-01), Ishikawa
patent: 5537358 (1996-07-01), Fong
patent: 5568085 (1996-10-01), Eitan et al.
patent: 5583808 (1996-12-01), Brahmbhatt
patent: 5754475 (1998-05-01), Bill et al.
patent: 5768193 (1998-06-01), Lee et al.
patent: 5784314 (1998-07-01), Sali et al.
patent: 5812449 (1998-09-01), Song
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: 5886927 (1999-03-01), Takeuchi
patent: 5946258 (1999-08-01), Evertt et al.
patent: 5949728 (1999-09-01), Liu et al.
patent: 5969993 (1999-10-01), Takeshima
patent: 6011725 (2000-01-01), Eitan
patent: 6034896 (2000-03-01), Ranaweera 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: 6205056 (2001-03-01), Pan et al.
patent: 6240040 (2001-05-01), Akaogi et al.
patent: 6307807 (2001-10-01), Sakui et al.
patent: 6317364 (2001-11-01), Guterman et al.
patent: 6331950 (2001-12-01), Kuo et al.
patent: 6396741 (2002-05-01), Bloom et al.
patent: 6490204 (2002-12-01), Bloom et al.
patent: 6493266 (2002-12-01), Yachareni et al.
patent: 6525969 (2003-02-01), Kurihara et al.
patent: 6552387 (2003-04-01), Eitan
patent: 2002/0132436 (2002-09-01), Eliyahu et al.
patent: 2002/0191465 (2002-12-01), Maayan et al.
Eitan, U.S. Appl. No. 08/905,286, filed Aug. 1, 1997.
Eitan Boaz
Lusky Eli
Eitan Law Group
Le Vu A.
Saifun Semiconductors Ltd.
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