TWI328231B - Methods and device for improved program-verify operations in non-volatile memories - Google Patents

Methods and device for improved program-verify operations in non-volatile memories Download PDF

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Publication number
TWI328231B
TWI328231B TW095150107A TW95150107A TWI328231B TW I328231 B TWI328231 B TW I328231B TW 095150107 A TW095150107 A TW 095150107A TW 95150107 A TW95150107 A TW 95150107A TW I328231 B TWI328231 B TW I328231B
Authority
TW
Taiwan
Prior art keywords
memory
group
memory cells
threshold voltage
stylized
Prior art date
Application number
TW095150107A
Other languages
English (en)
Chinese (zh)
Other versions
TW200746151A (en
Inventor
Siu-Lung Chan
Original Assignee
Sandisk Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/323,577 external-priority patent/US7310255B2/en
Priority claimed from US11/323,596 external-priority patent/US7224614B1/en
Application filed by Sandisk Corp filed Critical Sandisk Corp
Publication of TW200746151A publication Critical patent/TW200746151A/zh
Application granted granted Critical
Publication of TWI328231B publication Critical patent/TWI328231B/zh

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/10—Programming or data input circuits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • G11C16/3436—Arrangements for verifying correct programming or erasure
    • G11C16/3454—Arrangements for verifying correct programming or for detecting overprogrammed cells
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
    • G11C16/3436—Arrangements for verifying correct programming or erasure
    • G11C16/3454—Arrangements for verifying correct programming or for detecting overprogrammed cells
    • G11C16/3459—Circuits or methods to verify correct programming of nonvolatile memory cells
TW095150107A 2005-12-29 2006-12-29 Methods and device for improved program-verify operations in non-volatile memories TWI328231B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/323,577 US7310255B2 (en) 2005-12-29 2005-12-29 Non-volatile memory with improved program-verify operations
US11/323,596 US7224614B1 (en) 2005-12-29 2005-12-29 Methods for improved program-verify operations in non-volatile memories

Publications (2)

Publication Number Publication Date
TW200746151A TW200746151A (en) 2007-12-16
TWI328231B true TWI328231B (en) 2010-08-01

Family

ID=38110643

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095150107A TWI328231B (en) 2005-12-29 2006-12-29 Methods and device for improved program-verify operations in non-volatile memories

Country Status (5)

Country Link
EP (1) EP1966802A2 (fr)
JP (1) JP4638544B2 (fr)
KR (1) KR101317625B1 (fr)
TW (1) TWI328231B (fr)
WO (1) WO2007076512A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI514394B (zh) * 2013-08-27 2015-12-21 Toshiba Kk Semiconductor memory device and its control method

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* Cited by examiner, † Cited by third party
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US7606076B2 (en) * 2007-04-05 2009-10-20 Sandisk Corporation Sensing in non-volatile storage using pulldown to regulated source voltage to remove system noise
ITRM20080114A1 (it) * 2008-02-29 2009-09-01 Micron Technology Inc Compensazione della perdita di carica durante la programmazione di un dispositivo di memoria.
JP5172555B2 (ja) 2008-09-08 2013-03-27 株式会社東芝 半導体記憶装置
JP5193830B2 (ja) 2008-12-03 2013-05-08 株式会社東芝 不揮発性半導体メモリ
KR101005117B1 (ko) * 2009-01-23 2011-01-04 주식회사 하이닉스반도체 불휘발성 메모리 장치의 동작 방법
JP5039079B2 (ja) * 2009-03-23 2012-10-03 株式会社東芝 不揮発性半導体記憶装置
KR101554727B1 (ko) 2009-07-13 2015-09-23 삼성전자주식회사 불휘발성 메모리 장치 및 그것의 프로그램 방법
US8223556B2 (en) 2009-11-25 2012-07-17 Sandisk Technologies Inc. Programming non-volatile memory with a reduced number of verify operations
KR101633018B1 (ko) 2009-12-28 2016-06-24 삼성전자주식회사 플래시 메모리 장치 및 그것의 프로그램 방법
KR101656384B1 (ko) * 2010-06-10 2016-09-12 삼성전자주식회사 불휘발성 메모리 장치의 데이터 기입 방법
JP2011258289A (ja) 2010-06-10 2011-12-22 Toshiba Corp メモリセルの閾値検出方法
JP5380506B2 (ja) 2011-09-22 2014-01-08 株式会社東芝 不揮発性半導体記憶装置
JP2014053060A (ja) 2012-09-07 2014-03-20 Toshiba Corp 半導体記憶装置及びその制御方法
JP2014063551A (ja) 2012-09-21 2014-04-10 Toshiba Corp 半導体記憶装置
CN110892482B (zh) 2019-10-12 2021-01-29 长江存储科技有限责任公司 对存储器件进行编程的方法及相关存储器件
US11594293B2 (en) 2020-07-10 2023-02-28 Samsung Electronics Co., Ltd. Memory device with conditional skip of verify operation during write and operating method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3679544B2 (ja) * 1997-03-28 2005-08-03 三洋電機株式会社 不揮発性半導体メモリ装置
JP3977799B2 (ja) * 2003-12-09 2007-09-19 株式会社東芝 不揮発性半導体記憶装置
US7136304B2 (en) * 2002-10-29 2006-11-14 Saifun Semiconductor Ltd Method, system and circuit for programming a non-volatile memory array
US7068539B2 (en) * 2004-01-27 2006-06-27 Sandisk Corporation Charge packet metering for coarse/fine programming of non-volatile memory
US7139198B2 (en) * 2004-01-27 2006-11-21 Sandisk Corporation Efficient verification for coarse/fine programming of non-volatile memory
US7170793B2 (en) * 2004-04-13 2007-01-30 Sandisk Corporation Programming inhibit for non-volatile memory
US7023733B2 (en) 2004-05-05 2006-04-04 Sandisk Corporation Boosting to control programming of non-volatile memory
ITRM20050310A1 (it) * 2005-06-15 2006-12-16 Micron Technology Inc Convergenza a programmazione selettiva lenta in un dispositivo di memoria flash.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI514394B (zh) * 2013-08-27 2015-12-21 Toshiba Kk Semiconductor memory device and its control method

Also Published As

Publication number Publication date
WO2007076512A3 (fr) 2007-08-16
KR101317625B1 (ko) 2013-10-10
EP1966802A2 (fr) 2008-09-10
WO2007076512A2 (fr) 2007-07-05
JP4638544B2 (ja) 2011-02-23
TW200746151A (en) 2007-12-16
JP2009522707A (ja) 2009-06-11
KR20080096645A (ko) 2008-10-31

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