CN1698133A - 双位记忆单元的改良擦除方法 - Google Patents
双位记忆单元的改良擦除方法 Download PDFInfo
- Publication number
- CN1698133A CN1698133A CNA038077469A CN03807746A CN1698133A CN 1698133 A CN1698133 A CN 1698133A CN A038077469 A CNA038077469 A CN A038077469A CN 03807746 A CN03807746 A CN 03807746A CN 1698133 A CN1698133 A CN 1698133A
- Authority
- CN
- China
- Prior art keywords
- maximal value
- address
- reached
- bit
- erase
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
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
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
-
- 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
- G11C16/107—Programming all cells in an array, sector or block to the same state prior to flash erasing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0466—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells with charge storage in an insulating layer, e.g. metal-nitride-oxide-silicon [MNOS], silicon-oxide-nitride-oxide-silicon [SONOS]
- G11C16/0475—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells with charge storage in an insulating layer, e.g. metal-nitride-oxide-silicon [MNOS], silicon-oxide-nitride-oxide-silicon [SONOS] comprising two or more independent storage sites which store independent data
-
- 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
- G11C16/14—Circuits for erasing electrically, e.g. erase voltage switching circuits
- G11C16/16—Circuits for erasing electrically, e.g. erase voltage switching circuits for erasing blocks, e.g. arrays, words, groups
-
- 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
- G11C16/3404—Convergence or correction of memory cell threshold voltages; Repair or recovery of overerased or overprogrammed cells
- G11C16/3409—Circuits or methods to recover overerased nonvolatile memory cells detected during erase verification, usually by means of a "soft" programming step
-
- 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
- G11C16/344—Arrangements for verifying correct erasure or for detecting overerased cells
- G11C16/3445—Circuits or methods to verify correct erasure of nonvolatile memory cells
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/18—Flash erasure of all the cells in an array, sector or block simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Read Only Memory (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
动作 | 记忆单元 | 栅极 | 位线0 | 位线1 | 备注 |
读取 | C0 | Vcc | 0v | 1.2至2v | 附增位 |
读取 | C1 | Vcc | 1.2至2v | 0v | 正常位 |
写入 | C0 | Vpp | 5至6v | 0v | 热电子 |
写入 | C1 | Vpp | 0v | 5至6v | 热电子 |
单边擦除 | C0 | -6v | 6v | 0v | 热电洞注入 |
双边擦除 | 所以记忆单元 | -6v | 6v | 6v | 热电洞注入 |
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/119,366 US6901010B1 (en) | 2002-04-08 | 2002-04-08 | Erase method for a dual bit memory cell |
US10/119,366 | 2002-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1698133A true CN1698133A (zh) | 2005-11-16 |
Family
ID=29248245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA038077469A Pending CN1698133A (zh) | 2002-04-08 | 2003-02-14 | 双位记忆单元的改良擦除方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6901010B1 (zh) |
EP (1) | EP1497833B1 (zh) |
JP (1) | JP4235115B2 (zh) |
KR (1) | KR100936087B1 (zh) |
CN (1) | CN1698133A (zh) |
AU (1) | AU2003211091A1 (zh) |
DE (1) | DE60325343D1 (zh) |
TW (1) | TWI288417B (zh) |
WO (1) | WO2003088258A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102157204A (zh) * | 2010-02-11 | 2011-08-17 | 三星电子株式会社 | 使用自适应编程验证方案的闪速存储器件和相关操作方法 |
CN105450651A (zh) * | 2015-12-04 | 2016-03-30 | 浙江宇视科技有限公司 | 一种监控视频码流动态路由选择的方法及装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7167398B1 (en) * | 2005-02-23 | 2007-01-23 | Spansion L.L.C. | System and method for erasing a memory cell |
US7391654B2 (en) * | 2005-05-11 | 2008-06-24 | Micron Technology, Inc. | Memory block erasing in a flash memory device |
US8116142B2 (en) | 2005-09-06 | 2012-02-14 | Infineon Technologies Ag | Method and circuit for erasing a non-volatile memory cell |
CN100464375C (zh) * | 2005-10-08 | 2009-02-25 | 晶豪科技股份有限公司 | 降低擦除时间及防止过擦除之擦除方法 |
US7400538B2 (en) * | 2006-10-05 | 2008-07-15 | Tower Semiconductor Ltd. | NROM memory device with enhanced endurance |
US7385851B1 (en) * | 2006-12-22 | 2008-06-10 | Spansion Llc | Repetitive erase verify technique for flash memory devices |
US8320191B2 (en) | 2007-08-30 | 2012-11-27 | Infineon Technologies Ag | Memory cell arrangement, method for controlling a memory cell, memory array and electronic device |
US7839690B2 (en) * | 2008-12-11 | 2010-11-23 | Sandisk Corporation | Adaptive erase and soft programming for memory |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5491809A (en) * | 1993-01-05 | 1996-02-13 | Texas Instruments Incorporated | Smart erase algorithm with secure scheme for flash EPROMs |
JP4058219B2 (ja) * | 1999-09-17 | 2008-03-05 | 株式会社ルネサステクノロジ | 半導体集積回路 |
US6331951B1 (en) | 2000-11-21 | 2001-12-18 | Advanced Micro Devices, Inc. | Method and system for embedded chip erase verification |
US6344994B1 (en) * | 2001-01-31 | 2002-02-05 | Advanced Micro Devices | Data retention characteristics as a result of high temperature bake |
US6567303B1 (en) * | 2001-01-31 | 2003-05-20 | Advanced Micro Devices, Inc. | Charge injection |
US6456533B1 (en) * | 2001-02-28 | 2002-09-24 | Advanced Micro Devices, Inc. | Higher program VT and faster programming rates based on improved erase methods |
US6307784B1 (en) * | 2001-02-28 | 2001-10-23 | Advanced Micro Devices | Negative gate erase |
US6442074B1 (en) * | 2001-02-28 | 2002-08-27 | Advanced Micro Devices, Inc. | Tailored erase method using higher program VT and higher negative gate erase |
US6493266B1 (en) * | 2001-04-09 | 2002-12-10 | Advanced Micro Devices, Inc. | Soft program and soft program verify of the core cells in flash memory array |
US6512701B1 (en) * | 2001-06-21 | 2003-01-28 | Advanced Micro Devices, Inc. | Erase method for dual bit virtual ground flash |
-
2002
- 2002-04-08 US US10/119,366 patent/US6901010B1/en not_active Expired - Lifetime
-
2003
- 2003-02-14 AU AU2003211091A patent/AU2003211091A1/en not_active Abandoned
- 2003-02-14 KR KR1020047015996A patent/KR100936087B1/ko active IP Right Grant
- 2003-02-14 DE DE60325343T patent/DE60325343D1/de not_active Expired - Lifetime
- 2003-02-14 EP EP03746535A patent/EP1497833B1/en not_active Expired - Lifetime
- 2003-02-14 JP JP2003585101A patent/JP4235115B2/ja not_active Expired - Lifetime
- 2003-02-14 WO PCT/US2003/004607 patent/WO2003088258A1/en active Application Filing
- 2003-02-14 CN CNA038077469A patent/CN1698133A/zh active Pending
- 2003-03-27 TW TW092106884A patent/TWI288417B/zh not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102157204A (zh) * | 2010-02-11 | 2011-08-17 | 三星电子株式会社 | 使用自适应编程验证方案的闪速存储器件和相关操作方法 |
US9406394B2 (en) | 2010-02-11 | 2016-08-02 | Samsung Electronics Co., Ltd. | Flash memory device using adaptive program verification scheme and related method of operation |
CN105450651A (zh) * | 2015-12-04 | 2016-03-30 | 浙江宇视科技有限公司 | 一种监控视频码流动态路由选择的方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
US6901010B1 (en) | 2005-05-31 |
KR20040097312A (ko) | 2004-11-17 |
KR100936087B1 (ko) | 2010-01-12 |
JP4235115B2 (ja) | 2009-03-11 |
AU2003211091A1 (en) | 2003-10-27 |
DE60325343D1 (de) | 2009-01-29 |
EP1497833A1 (en) | 2005-01-19 |
JP2005522815A (ja) | 2005-07-28 |
EP1497833B1 (en) | 2008-12-17 |
WO2003088258A1 (en) | 2003-10-23 |
TWI288417B (en) | 2007-10-11 |
TW200400511A (en) | 2004-01-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: SPANSION CO.,LTD. Free format text: FORMER OWNER: ADVANCED MICRO DEVICES INC. Effective date: 20070413 Owner name: SPANSION CO., LTD. Free format text: FORMER OWNER: SPANSION CO.,LTD. Effective date: 20070413 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20070413 Address after: California, USA Applicant after: SPANSION LLC Address before: California, USA Applicant before: Spanson Co. Effective date of registration: 20070413 Address after: California, USA Applicant after: Spanson Co. Address before: California, USA Applicant before: ADVANCED MICRO DEVICES, Inc. |
|
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |