Static information storage and retrieval – Read/write circuit – Differential sensing
Reexamination Certificate
2010-12-10
2011-11-01
Lam, David (Department: 2827)
Static information storage and retrieval
Read/write circuit
Differential sensing
C365S149000, C365S203000, C365S233100
Reexamination Certificate
active
08050126
ABSTRACT:
One or more sense amplifiers for sensing the conduction current of non-volatile memory is controlled by signals that are timed by a reference sense amplifier having similar characteristics and operating conditions. In one aspect, a sensing period is determined by when the reference sense amplifier sensing a reference current detects an expected state. In another aspect, an integration period for an amplified output is determined by when the reference sense amplifier outputs an expected state. When these determined timings are used to control the one or more sense amplifiers, environment and systemic variations are tracked.
REFERENCES:
patent: 4357685 (1982-11-01), Daniele et al.
patent: 4785427 (1988-11-01), Young
patent: 5012447 (1991-04-01), Matsuda et al.
patent: 5021999 (1991-06-01), Kohda et al.
patent: 5070032 (1991-12-01), Yuan et al.
patent: 5093806 (1992-03-01), Tran
patent: 5095344 (1992-03-01), Harari
patent: 5172338 (1992-12-01), Mehrotra et al.
patent: 5241494 (1993-08-01), Blyth et al.
patent: 5245571 (1993-09-01), Takahashi
patent: 5313421 (1994-05-01), Guterman et al.
patent: 5315541 (1994-05-01), Harari et al.
patent: 5343063 (1994-08-01), Yuan et al.
patent: 5418752 (1995-05-01), Harari et al.
patent: 5444656 (1995-08-01), Bauer et al.
patent: 5537356 (1996-07-01), Akaogi et al.
patent: 5555203 (1996-09-01), Shiratake et al.
patent: 5570315 (1996-10-01), Tanaka et al.
patent: 5595924 (1997-01-01), Yuan et al.
patent: 5650970 (1997-07-01), Kai
patent: 5661053 (1997-08-01), Yuan
patent: 5768192 (1998-06-01), Eitan
patent: 5774397 (1998-06-01), Endoh et al.
patent: 5806082 (1998-09-01), Shaw
patent: 5860082 (1999-01-01), Smith et al.
patent: 5872739 (1999-02-01), Womack
patent: 5886919 (1999-03-01), Morikawa et al.
patent: 5903495 (1999-05-01), Takeuchi et al.
patent: 5914903 (1999-06-01), Kanma et al.
patent: 5920502 (1999-07-01), Noda et al.
patent: 5949720 (1999-09-01), Brady
patent: 5978271 (1999-11-01), Sato et al.
patent: 6009040 (1999-12-01), Choi et al.
patent: 6011287 (2000-01-01), Itoh et al.
patent: 6011725 (2000-01-01), Eitan
patent: 6046935 (2000-04-01), Takeuchi et al.
patent: 6046940 (2000-04-01), Takeuchi et al.
patent: 6061270 (2000-05-01), Choi
patent: 6062270 (2000-05-01), Hultberg et al.
patent: 6097638 (2000-08-01), Himeno et al.
patent: 6191975 (2001-02-01), Shimizu et al.
patent: 6191977 (2001-02-01), Lee
patent: 6222762 (2001-04-01), Guterman et al.
patent: 6252798 (2001-06-01), Satoh et al.
patent: 6260104 (2001-07-01), Roohparvar
patent: 6301153 (2001-10-01), Takeuchi et al.
patent: 6307783 (2001-10-01), Parker
patent: 6373746 (2002-04-01), Takeuchi et al.
patent: 6385110 (2002-05-01), Deguchi
patent: 6407953 (2002-06-01), Cleeves
patent: 6438038 (2002-08-01), Ikehashi et al.
patent: 6438050 (2002-08-01), Kanetani et al.
patent: 6490199 (2002-12-01), Lee et al.
patent: 6504757 (2003-01-01), Hollmer et al.
patent: 6519180 (2003-02-01), Tran et al.
patent: 6522592 (2003-02-01), Van De Graaff
patent: 6535434 (2003-03-01), Maayan et al.
patent: 6545917 (2003-04-01), Kim
patent: 6556508 (2003-04-01), Tsao et al.
patent: 6650570 (2003-11-01), Tanzawa et al.
patent: 6717851 (2004-04-01), Mangan et al.
patent: 6731539 (2004-05-01), Wong
patent: 6738289 (2004-05-01), Gongwer et al.
patent: 6744667 (2004-06-01), Yamamoto et al.
patent: 6747899 (2004-06-01), Hsia et al.
patent: 6751129 (2004-06-01), Gongwer
patent: 6807103 (2004-10-01), Cavaleri et al.
patent: 6829185 (2004-12-01), Beer
patent: 6859394 (2005-02-01), Matsunaga et al.
patent: 6956770 (2005-10-01), Khalid et al.
patent: 6983428 (2006-01-01), Cernea et al.
patent: 6987693 (2006-01-01), Cernea et al.
patent: 7023736 (2006-04-01), Cernea et al.
patent: 7046568 (2006-05-01), Cernea
patent: 7064980 (2006-06-01), Cernea et al.
patent: 7196931 (2007-03-01), Cernea et al.
patent: 7212445 (2007-05-01), Cernea et al
patent: 7852678 (2010-12-01), Cernea
patent: 2001/0006479 (2001-07-01), Ikehashi et al.
patent: 2002/0036925 (2002-03-01), Tanzawa et al.
patent: 2002/0039322 (2002-04-01), Tran et al.
patent: 2002/0118574 (2002-08-01), Gongwer et al.
patent: 2002/0126532 (2002-09-01), Matsunaga et al.
patent: 2004/0057285 (2004-03-01), Cernea et al.
patent: 2004/0057287 (2004-03-01), Cernea et al.
patent: 2004/0057318 (2004-03-01), Cernea et al.
patent: 2004/0060031 (2004-03-01), Cernea et al.
patent: 2004/0109357 (2004-06-01), Cernea et al.
patent: 2004/0257876 (2004-12-01), Vimercati
patent: 2005/0057965 (2005-03-01), Cernea et al.
patent: 2005/0169082 (2005-08-01), Cernea
patent: 2006/0034121 (2006-02-01), Khalid et al.
patent: 2006/0158935 (2006-07-01), Chan et al.
patent: 2006/0158947 (2006-07-01), Chan et al.
patent: 2008/0117701 (2008-05-01), Chan et al.
patent: 1 134 746 (2001-09-01), None
patent: 1 164 595 (2001-12-01), None
patent: 1 248 260 (2002-10-01), None
patent: 1 288 964 (2003-03-01), None
patent: 1 467 377 (2004-10-01), None
patent: 2 332 766 (1999-06-01), None
patent: 11-096783 (1999-04-01), None
patent: 11-167800 (1999-06-01), None
patent: 2001-325796 (2001-11-01), None
patent: WO 02/069340 (2002-09-01), None
patent: WO 2004/029984 (2004-04-01), None
patent: WO 2005/029502 (2005-03-01), None
patent: WO 2006/065501 (2006-06-01), None
Eitan et al., “NROM: A Novel Localized Trapping, 2-Bit Nonvolatile Memory Cell,” IEEE Electron Device Letters, vol. 21, No. 11, Nov. 2000, pp. 543-545.
EPO/ISA, “International Search Report,” corresponding to PCT/US03/30133, filed Feb. 16, 2004, 4 pages.
EPO/ISA, “Notification of Transmittal of the International Search Report or the Declaration”, mailed in PCT/US03/29045, Jul. 28, 2004, 6 pages.
EPO/ISA, “Communication Relating to the Results of the Partial International Search” in PCT/US03/29603, Jul. 30, 2004, 2 pages.
EPO/ISA, “Notification of Transmittal of the International Search Report or the Declaration”, mailed in PCT/US03/29603 Nov. 5, 2004, 7 pages.
EPO/ISA, “Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration”, mailed in related PCT/US2004/029426 on Jan. 20, 2005, 12 pages.
USPTO, “Notice of Allowance and Fee(s) Due,” mailed in related U.S. Appl. No. 11/015,199 on Dec. 20, 2005, 11 pages.
USPTO, “Notice of Allowance and Fee(s) Due,” mailed in related U.S. Appl. No. 10/667,222 on Dec. 30, 2005, 8 pages.
USPTO, “Office Action,” mailed in related U.S. Appl. No. 10/678,918 on Jan. 11, 2006, 10 pages.
USPTO, “Office Action,” mailed in related U.S. Appl. No. 10/254,898 on Apr. 14, 2006, 13 pages.
EPO/ISA, “Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration,” mailed in related PCT/US2005/042854 on Apr. 20, 2006, 9 pages.
USPTO, “Office Action,” mailed in related U.S. Appl. No. 11/235,985 on May 9, 2006, 10 pages.
EPO/ISA, “Notification of Transmittal of the International Preliminary Examination Report,” mailed in related International Application No. PCT/US2004/029426 on Jun. 2, 2006, 8 pages.
USPTO, “Office Action,” mailed in related U.S. Appl. No. 10/254,830 on Jul. 12, 2006, 12 pages.
EPO, “Office Action,” mailed in European Patent Application No. 04 783 607.7 on Oct. 10, 2006, 1 page.
USPTO, “Notice of Allowance,” mailed in U.S. Appl. No. 10/254,830 on Nov. 9, 2006, 6 pages.
USPTO, “Office Action,” mailed in related U.S. Appl. No. 11/621,750 on Mar. 8, 2007, 10 pages.
USPTO, “Notice of Allowance and Fee(s) Due,” mailed in related U.S. Appl. No. 11/321,953 on Jun. 14, 2007, 15 pages.
USPTO, “Notice of Allowance and Fee(s) Due,” mailed in related U.S. Appl. No. 11/321,681 on Jun. 29, 2007, 18 pages.
EPO, “Office Action,” mailed in European Patent Application No. 03 754 785.8 on Jul. 2, 2007, 4 pages.
EPO/ISA, “Notification of Transmittal of the International Search Repor
Davis , Wright, Tremaine, LLP
Lam David
SanDisk Technologies Inc.
LandOfFree
Non-volatile memory with improved sensing by reducing source... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-volatile memory with improved sensing by reducing source..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-volatile memory with improved sensing by reducing source... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4303074