DE69223379D1 - Verfahren und Anordnung zur Vermeidung von Überlöschung einer Flashzelle - Google Patents
Verfahren und Anordnung zur Vermeidung von Überlöschung einer FlashzelleInfo
- Publication number
- DE69223379D1 DE69223379D1 DE69223379T DE69223379T DE69223379D1 DE 69223379 D1 DE69223379 D1 DE 69223379D1 DE 69223379 T DE69223379 T DE 69223379T DE 69223379 T DE69223379 T DE 69223379T DE 69223379 D1 DE69223379 D1 DE 69223379D1
- Authority
- DE
- Germany
- Prior art keywords
- erasure
- arrangement
- flash cell
- avoiding over
- avoiding
- 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.)
- Expired - Lifetime
Links
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
- G11C16/3436—Arrangements for verifying correct programming or erasure
- G11C16/3468—Prevention of overerasure or overprogramming, e.g. by verifying whilst erasing or writing
- G11C16/3477—Circuits or methods to prevent overerasing of nonvolatile memory cells, e.g. by detecting onset or cessation of current flow in cells and using the detector output to terminate 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
- G11C16/06—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
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/788,607 US5220533A (en) | 1991-11-06 | 1991-11-06 | Method and apparatus for preventing overerasure in a flash cell |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69223379D1 true DE69223379D1 (de) | 1998-01-15 |
Family
ID=25145006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69223379T Expired - Lifetime DE69223379D1 (de) | 1991-11-06 | 1992-09-09 | Verfahren und Anordnung zur Vermeidung von Überlöschung einer Flashzelle |
Country Status (4)
Country | Link |
---|---|
US (1) | US5220533A (de) |
EP (1) | EP0541221B1 (de) |
JP (1) | JPH06251592A (de) |
DE (1) | DE69223379D1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2870260B2 (ja) * | 1991-09-27 | 1999-03-17 | 日本電気株式会社 | 不揮発性半導体記憶装置 |
JPH06505848A (ja) * | 1991-12-26 | 1994-06-30 | アルテラ コーポレーション | Epromを基本とした待機電力ゼロのクロスバースイッチ |
JP3080743B2 (ja) * | 1991-12-27 | 2000-08-28 | 日本電気株式会社 | 不揮発性半導体記憶装置 |
JP2953196B2 (ja) * | 1992-05-15 | 1999-09-27 | 日本電気株式会社 | 不揮発性半導体記憶装置 |
US5324998A (en) * | 1993-02-10 | 1994-06-28 | Micron Semiconductor, Inc. | Zero power reprogrammable flash cell for a programmable logic device |
US5329487A (en) * | 1993-03-08 | 1994-07-12 | Altera Corporation | Two transistor flash EPROM cell |
EP0621603B1 (de) * | 1993-04-22 | 1999-02-10 | STMicroelectronics S.r.l. | Verfahren und Schaltung zur Tunneleffektprogrammierung eines MOSFETs mit schwebendem Gatter |
US5428578A (en) * | 1993-08-12 | 1995-06-27 | Texas Instruments Incorporated | Biasing circuit and method to achieve compaction and self-limiting erase in flash EEPROMs |
US5416738A (en) * | 1994-05-27 | 1995-05-16 | Alliance Semiconductor Corporation | Single transistor flash EPROM cell and method of operation |
US5488586A (en) * | 1994-10-24 | 1996-01-30 | Altera Corporation | Method and apparatus for erasing an array of electrically erasable programmable read only memory cells |
US5754471A (en) * | 1995-06-06 | 1998-05-19 | Advanced Micro Devices, Inc. | Low power CMOS array for a PLD with program and erase using controlled avalanche injection |
US6005806A (en) * | 1996-03-14 | 1999-12-21 | Altera Corporation | Nonvolatile configuration cells and cell arrays |
US5648930A (en) * | 1996-06-28 | 1997-07-15 | Symbios Logic Inc. | Non-volatile memory which is programmable from a power source |
US6018476A (en) * | 1996-09-16 | 2000-01-25 | Altera Corporation | Nonvolatile configuration cells and cell arrays |
US5661687A (en) * | 1996-09-30 | 1997-08-26 | Symbios Logic Inc. | Drain excluded EPROM cell |
US5838616A (en) * | 1996-09-30 | 1998-11-17 | Symbios, Inc. | Gate edge aligned EEPROM transistor |
TW337607B (en) | 1997-08-06 | 1998-08-01 | Mos Electronics Taiwan Inc | Process for forming a contact hole in an EEPROM with NOR construction |
KR20010005001A (ko) | 1999-06-30 | 2001-01-15 | 김영환 | 플래쉬 메모리 셀의 제조 방법 |
KR100308192B1 (ko) | 1999-07-28 | 2001-11-01 | 윤종용 | 플래시 메모리 셀들의 과소거를 방지할 수 있는 플래시 메모리장치 및 그것의 소거 방법 |
US6914827B2 (en) * | 1999-07-28 | 2005-07-05 | Samsung Electronics Co., Ltd. | Flash memory device capable of preventing an over-erase of flash memory cells and erase method thereof |
US7366020B2 (en) * | 1999-07-28 | 2008-04-29 | Samsung Electronics Co., Ltd. | Flash memory device capable of preventing an overerase of flash memory cells and erase method thereof |
KR100357693B1 (ko) | 1999-12-06 | 2002-10-25 | 삼성전자 주식회사 | 향상된 소거 알고리즘이 내장된 불휘발성 반도체 메모리장치 |
KR20020091581A (ko) | 2001-05-31 | 2002-12-06 | 삼성전자 주식회사 | 진행성 결함 특성을 갖는 메모리 셀을 검사할 수 있는플래시 메모리 장치 |
US6839284B1 (en) * | 2003-06-17 | 2005-01-04 | Powerchip Semiconductor Corp. | Method of programming and erasing a non-volatile semiconductor memory |
US10371171B2 (en) | 2014-09-22 | 2019-08-06 | Regal Beloit America, Inc. | System and methods for reducing noise in an air moving system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4377857A (en) * | 1980-11-18 | 1983-03-22 | Fairchild Camera & Instrument | Electrically erasable programmable read-only memory |
EP0108681A3 (de) * | 1982-11-04 | 1986-10-15 | FAIRCHILD CAMERA & INSTRUMENT CORPORATION | Bit-löschbarer EEPROM |
US4903236A (en) * | 1987-07-15 | 1990-02-20 | Mitsubishi Denki Kabushiki Kaisha | Nonvolatile semiconductor memory device and a writing method therefor |
US4888738A (en) * | 1988-06-29 | 1989-12-19 | Seeq Technology | Current-regulated, voltage-regulated erase circuit for EEPROM memory |
JPH02126498A (ja) * | 1988-07-08 | 1990-05-15 | Hitachi Ltd | 不揮発性半導体記憶装置 |
US5097444A (en) * | 1989-11-29 | 1992-03-17 | Rohm Corporation | Tunnel EEPROM with overerase protection |
JP2638654B2 (ja) * | 1990-02-06 | 1997-08-06 | 三菱電機株式会社 | 半導体不揮発性記憶装置 |
US5132935A (en) * | 1990-04-16 | 1992-07-21 | Ashmore Jr Benjamin H | Erasure of eeprom memory arrays to prevent over-erased cells |
US5122985A (en) * | 1990-04-16 | 1992-06-16 | Giovani Santin | Circuit and method for erasing eeprom memory arrays to prevent over-erased cells |
-
1991
- 1991-11-06 US US07/788,607 patent/US5220533A/en not_active Expired - Lifetime
-
1992
- 1992-09-09 EP EP92308141A patent/EP0541221B1/de not_active Expired - Lifetime
- 1992-09-09 DE DE69223379T patent/DE69223379D1/de not_active Expired - Lifetime
- 1992-11-05 JP JP29595392A patent/JPH06251592A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0541221A3 (de) | 1994-01-12 |
EP0541221B1 (de) | 1997-12-03 |
EP0541221A2 (de) | 1993-05-12 |
US5220533A (en) | 1993-06-15 |
JPH06251592A (ja) | 1994-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |