JP2016500193A - 抵抗可変メモリにおけるドリフト加速 - Google Patents
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- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
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Abstract
Description
本開示は、抵抗可変メモリにおけるドリフト加速を含む装置および方法を含む。いくつかの実施形態は、プログラミング信号を抵抗可変メモリセルに印加して、セルを対象とする状態にプログラムすることと、続いて、先行読取信号を抵抗可変メモリセルに印加し、プログラムされたセルの抵抗のドリフトを加速することと、続いて、読取信号を抵抗可変メモリセルに印加することと、を含む。
Claims (27)
- 抵抗可変メモリセルを動作させる方法であって、
プログラミング信号を前記抵抗可変メモリセルに印加して、前記セルを対象とする状態にプログラムすることと、
続いて、先行読取信号を前記抵抗可変メモリセルに印加し、前記プログラムされたセルの抵抗のドリフトを加速することと、
続いて、読取信号を前記抵抗可変メモリセルに印加することと、を含む、方法。 - 前記先行読取信号を印加することが、前記読取信号の振幅と同等の振幅を有する先行読取信号を印加することを含む、請求項1に記載の方法。
- 前記先行読取信号を、前記読取信号が前記セルに印加される時間間隔より長い時間間隔で、前記セルに印加することを含む、請求項2に記載の方法。
- 前記先行読取信号を印加することが、前記読取信号の振幅より小さい振幅を有する先行読取信号を印加することを含む、請求項1または2のいずれか1項に記載の方法。
- 前記先行読取信号を印加することが、前記読取信号の振幅より大きい振幅を有する先行読取信号を印加することを含む、請求項1または2のいずれか1項に記載の方法。
- 前記先行読取信号を印加することが、少なくとも2つの先行読取信号パルスを印加することを含む、請求項1または2のいずれか1項に記載の方法。
- 前記方法が、ウエハーレベル試験プロセス中に行われる、請求項1または2のいずれか1項に記載の方法。
- 前記読取信号が、前記先行読取信号の印加に続く時間間隔の後に印加される、請求項1または2のいずれか1項に記載の方法。
- 前記読取信号が、前記先行読取信号と連続して印加される、請求項1または2のいずれか1項に記載の方法。
- 前記先行読取信号を印加することが、
前記先行読取信号の第1の部分であって、第1の振幅を有する、前記第1の部分を前記セルに印加することと、
前記先行読取信号の第2の部分であって、第2の振幅を有する、前記第2の部分を前記セルに印加することと、を含み、
前記第2の部分が前記抵抗の前記ドリフトを加速するように構成される速度とは異なる速度で、前記第1の部分が前記抵抗の前記ドリフトを加速するように構成される、請求項1または2のいずれか1項に記載の方法。 - 前記方法が、後続のプログラミング動作を前記セルに対して行った後にのみ、後続の先行読取信号を前記セルに印加することを含む、請求項1または2のいずれか1項に記載の方法。
- 抵抗可変メモリセルのアレイと、
前記アレイに結合されたコントローラと、を備え、前記コントローラが、
選択されたメモリセルを対象とする状態にプログラムすることと、
続いて、先行読取信号を前記選択されたメモリセルに印加することであって、前記先行読取信号が、前記選択されたメモリセルの抵抗のドリフトを加速するように構成される、印加することと、
前記選択されたメモリセルを読取ることと、を制御するように構成される、装置。 - 前記選択されたメモリセルが相変化メモリセルであり、前記先行読取信号が、前記相変化メモリセルの非晶質部分における構造緩和を高めることによって、前記抵抗のドリフトを加速するように構成される、請求項12に記載の装置。
- 前記コントローラが、いくつかのプログラミング動作の各々が前記選択されたセルに対して行われた後に、前記先行読取信号の前記選択されたセルへの印加を制御するようにさらに構成される、請求項12に記載の装置。
- 前記装置が、前記アレイに結合された回路を備え、前記回路が、
プログラミング中、プログラミング信号を前記選択されたメモリセルに選択的に印加し、
前記先行読取信号を前記選択されたメモリセルに選択的に印加し、かつ
読取中、読取信号を前記メモリセルに選択的に印加するように構成される、請求項12から14のいずれか1項に記載の装置。 - 前記回路が、前記プログラミング信号、前記先行読取信号、および前記読取信号を前記選択されたメモリセルに選択的に印加するように動作可能なスイッチを備える、請求項15に記載の装置。
- 前記先行読取信号が、前記対象とする状態に基づいて決定された先行読取信号を含む、請求項15に記載の装置。
- 相変化メモリセルを動作させる方法であって、
前記相変化メモリセルを対象とする状態にプログラムすることと、
先行読取信号を、特定の時間間隔で前記相変化メモリセルに印加することと、
前記相変化メモリセルを読取ることであって、前記先行読取信号が、前記プログラムされたメモリセルの抵抗のドリフトを加速するように構成される、読取ることと、を含む、方法。 - 前記先行読取信号が複数の先行読取パルスを含み、前記相変化メモリセルを読取ることが、前記複数の先行読取パルスが前記相変化メモリセルに印加された後、読取信号を前記相変化メモリセルに印加することを含む、請求項18に記載の方法。
- 前記ドリフトを加速することが、前記対象とする状態の安定性を高める、請求項18に記載の方法。
- 前記先行読取信号を印加することが、いくつかの間隔で、いくつかの先行読取パルスを印加することを含む、請求項18に記載の方法。
- 前記先行読取パルスのうちの少なくとも1つの振幅が、前記相変化メモリセルを読取るために使用される読取信号の振幅より小さい、請求項21に記載の方法。
- 前記先行読取パルスのうちの少なくとも1つの振幅が、前記相変化メモリセルを読取るために使用される読取信号の振幅より大きい、請求項21に記載の方法。
- 前記相変化メモリセルをプログラミングすることが、セット信号を前記相変化メモリセルに印加することを含む、請求項18から23のいずれか1項に記載の方法。
- 前記相変化メモリセルをプログラミングすることが、リセット信号を前記相変化メモリセルに印加することを含む、請求項18から23のいずれか1項に記載の方法。
- 前記先行読取信号が前記相変化メモリセルに印加される前記特定の時間間隔を調整することを含む、請求項18から23のいずれか1項に記載の方法。
- 相変化メモリセルのアレイと、
前記アレイに結合されたコントローラと、を備え、前記コントローラが、
前記アレイ内の相変化メモリセルを対象とする状態にプログラムすることと、
続いて、先行読取信号を特定の時間間隔で前記相変化メモリセルに印加することであって、前記先行読取信号が、前記プログラムされた相変化メモリセルの抵抗のドリフトを加速するように構成される、印加することと、
続いて、前記相変化メモリセルを読取ることと、を制御するように構成される、装置。
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US13/647,527 | 2012-10-09 | ||
US13/647,527 US9099174B2 (en) | 2012-10-09 | 2012-10-09 | Drift acceleration in resistance variable memory |
PCT/US2013/063194 WO2014058695A1 (en) | 2012-10-09 | 2013-10-03 | Drift acceleration in resistance variable memory |
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EP (1) | EP2907136B1 (ja) |
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KR (1) | KR20150064108A (ja) |
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Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9099174B2 (en) * | 2012-10-09 | 2015-08-04 | Micron Technology, Inc. | Drift acceleration in resistance variable memory |
US9135993B2 (en) * | 2013-02-07 | 2015-09-15 | Seagate Technology Llc | Temperature based logic profile for variable resistance memory cells |
US9001573B1 (en) | 2013-12-06 | 2015-04-07 | Micron Technology, Inc. | Method and apparatuses for programming memory cells |
US9384801B2 (en) | 2014-08-15 | 2016-07-05 | Intel Corporation | Threshold voltage expansion |
JP2016170848A (ja) * | 2015-03-16 | 2016-09-23 | ルネサスエレクトロニクス株式会社 | 半導体記憶装置 |
US9613691B2 (en) | 2015-03-27 | 2017-04-04 | Intel Corporation | Apparatus and method for drift cancellation in a memory |
US9911500B2 (en) | 2016-04-18 | 2018-03-06 | Sandisk Technologies Llc | Dummy voltage to reduce first read effect in memory |
US9824767B1 (en) | 2016-06-29 | 2017-11-21 | Intel Corporation | Methods and apparatus to reduce threshold voltage drift |
TWI627631B (zh) * | 2016-07-18 | 2018-06-21 | 旺宏電子股份有限公司 | 記憶胞的操作方法及其應用 |
US10283197B1 (en) * | 2016-08-05 | 2019-05-07 | SK Hynix Inc. | Electronic device and method for reading data of memory cell |
US10262743B2 (en) | 2016-10-25 | 2019-04-16 | Sandisk Technologies Llc | Command sequence for first read solution for memory |
US10026486B1 (en) | 2017-03-06 | 2018-07-17 | Sandisk Technologies Llc | First read countermeasures in memory |
US10347315B2 (en) | 2017-10-31 | 2019-07-09 | Sandisk Technologies Llc | Group read refresh |
US10515697B1 (en) * | 2018-06-29 | 2019-12-24 | Intel Corporation | Apparatuses and methods to control operations performed on resistive memory cells |
KR102641097B1 (ko) | 2018-12-31 | 2024-02-27 | 삼성전자주식회사 | 저항성 메모리 장치 및 저항성 메모리 장치의 프로그램 방법 |
JP2020161201A (ja) * | 2019-03-27 | 2020-10-01 | キオクシア株式会社 | 半導体記憶装置 |
US10790031B1 (en) * | 2019-06-05 | 2020-09-29 | Western Digital Technologies, Inc. | System handling for first read read disturb |
US10861539B1 (en) * | 2019-08-21 | 2020-12-08 | Micron Technology, Inc. | Neural network memory |
WO2021229260A1 (en) | 2020-05-13 | 2021-11-18 | Micron Technology, Inc. | Counter-based methods and systems for accessing memory cells |
US11139034B1 (en) * | 2020-07-15 | 2021-10-05 | Micron Technology, Inc. | Data-based polarity write operations |
US11581039B2 (en) | 2021-01-18 | 2023-02-14 | Taiwan Semiconductor Manufacturing Company Limited | Methods of controlling PCRAM devices in single-level-cell (SLC) and multi-level-cell (MLC) modes and a controller for performing the same methods |
US11367484B1 (en) | 2021-01-21 | 2022-06-21 | Micron Technology, Inc. | Multi-step pre-read for write operations in memory devices |
US11664073B2 (en) | 2021-04-02 | 2023-05-30 | Micron Technology, Inc. | Adaptively programming memory cells in different modes to optimize performance |
US11615854B2 (en) | 2021-04-02 | 2023-03-28 | Micron Technology, Inc. | Identify the programming mode of memory cells during reading of the memory cells |
US11514983B2 (en) | 2021-04-02 | 2022-11-29 | Micron Technology, Inc. | Identify the programming mode of memory cells based on cell statistics obtained during reading of the memory cells |
US11664074B2 (en) | 2021-06-02 | 2023-05-30 | Micron Technology, Inc. | Programming intermediate state to store data in self-selecting memory cells |
US11694747B2 (en) | 2021-06-03 | 2023-07-04 | Micron Technology, Inc. | Self-selecting memory cells configured to store more than one bit per memory cell |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090303785A1 (en) * | 2008-06-04 | 2009-12-10 | Samsung Electronics Co., Ltd. | Phase change memory devices and read methods using elapsed time-based read voltages |
US20120014164A1 (en) * | 2010-07-13 | 2012-01-19 | Masahiro Kamoshida | Resistance-change memory and method of operating the same |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100313464B1 (ko) * | 1999-12-03 | 2001-11-26 | 윤종용 | 음성사서함 시스템에서 메시지 수신 시 전자메일 통보방법 |
US7069592B2 (en) * | 2000-04-26 | 2006-06-27 | Ford Global Technologies, Llc | Web-based document system |
US6628934B2 (en) * | 2001-07-12 | 2003-09-30 | Earthlink, Inc. | Systems and methods for automatically provisioning wireless services on a wireless device |
US6621739B2 (en) | 2002-01-18 | 2003-09-16 | Sandisk Corporation | Reducing the effects of noise in non-volatile memories through multiple reads |
AU2002952173A0 (en) * | 2002-10-18 | 2002-10-31 | Nine Network Australia Pty Limited | Mobile television reminder alert |
US6930909B2 (en) * | 2003-06-25 | 2005-08-16 | Micron Technology, Inc. | Memory device and methods of controlling resistance variation and resistance profile drift |
JP4063239B2 (ja) * | 2004-04-16 | 2008-03-19 | ソニー株式会社 | データ読出し回路及びこの回路を有する半導体装置 |
US7289351B1 (en) * | 2005-06-24 | 2007-10-30 | Spansion Llc | Method of programming a resistive memory device |
US7372725B2 (en) * | 2005-08-15 | 2008-05-13 | Infineon Technologies Ag | Integrated circuit having resistive memory |
US9099174B2 (en) * | 2012-10-09 | 2015-08-04 | Micron Technology, Inc. | Drift acceleration in resistance variable memory |
US7869253B2 (en) * | 2006-08-21 | 2011-01-11 | Qimonda Ag | Method of determining a memory state of a resistive memory cell and device measuring the memory state of a resistive memory cell |
US7755922B2 (en) | 2006-12-29 | 2010-07-13 | Spansion Llc | Non-volatile resistance changing for advanced memory applications |
US7940552B2 (en) * | 2007-04-30 | 2011-05-10 | Samsung Electronics Co., Ltd. | Multiple level cell phase-change memory device having pre-reading operation resistance drift recovery, memory systems employing such devices and methods of reading memory devices |
KR100914267B1 (ko) | 2007-06-20 | 2009-08-27 | 삼성전자주식회사 | 가변저항 메모리 장치 및 그것의 형성방법 |
KR101308549B1 (ko) * | 2007-07-12 | 2013-09-13 | 삼성전자주식회사 | 멀티-레벨 상변환 메모리 장치 및 그것의 쓰기 방법 |
JP5060191B2 (ja) * | 2007-07-18 | 2012-10-31 | 株式会社東芝 | 抵抗変化メモリ装置のデータ書き込み方法 |
KR101311499B1 (ko) * | 2007-08-23 | 2013-09-25 | 삼성전자주식회사 | 가변 저항 메모리 장치 및 그것의 프로그램 방법 |
KR101374319B1 (ko) | 2007-08-24 | 2014-03-17 | 삼성전자주식회사 | 가변 저항 메모리 장치 및 그것의 동작 방법 |
US7940553B2 (en) * | 2008-12-30 | 2011-05-10 | Stmicroelectronics S.R.L. | Method of storing an indication of whether a memory location in phase change memory needs programming |
US7929338B2 (en) * | 2009-02-24 | 2011-04-19 | International Business Machines Corporation | Memory reading method for resistance drift mitigation |
WO2011080770A1 (en) | 2009-12-29 | 2011-07-07 | Ferdinando Bedeschi | Use of decreasing verify currents in a set programming cycle of a phase change memory |
KR101652333B1 (ko) * | 2010-02-10 | 2016-08-30 | 삼성전자주식회사 | 가변 저항 메모리 장치 및 그것의 프로그램 방법 |
US8467237B2 (en) | 2010-10-15 | 2013-06-18 | Micron Technology, Inc. | Read distribution management for phase change memory |
US8446758B2 (en) | 2010-12-14 | 2013-05-21 | Micron Technology, Inc. | Variable resistance memory programming |
SG184696A1 (en) * | 2011-03-30 | 2012-10-30 | Agency Science Tech & Res | A method for programming a resistive memory cell, a method and a memory apparatus for programming one or more resistive memory cells in a memory array |
US8958233B2 (en) * | 2011-10-18 | 2015-02-17 | Micron Technology, Inc. | Stabilization of resistive memory |
KR101948153B1 (ko) * | 2012-03-12 | 2019-02-14 | 삼성전자주식회사 | 저항성 메모리 장치 및 그것의 데이터 쓰기 방법 |
-
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-
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- 2013-10-03 WO PCT/US2013/063194 patent/WO2014058695A1/en active Application Filing
- 2013-10-03 KR KR1020157010706A patent/KR20150064108A/ko active Search and Examination
- 2013-10-03 EP EP13845261.0A patent/EP2907136B1/en active Active
- 2013-10-03 CN CN201380052748.XA patent/CN104704568B/zh active Active
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- 2015-06-25 US US14/750,525 patent/US9245620B2/en active Active
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090303785A1 (en) * | 2008-06-04 | 2009-12-10 | Samsung Electronics Co., Ltd. | Phase change memory devices and read methods using elapsed time-based read voltages |
US20120014164A1 (en) * | 2010-07-13 | 2012-01-19 | Masahiro Kamoshida | Resistance-change memory and method of operating the same |
JP2012022742A (ja) * | 2010-07-13 | 2012-02-02 | Toshiba Corp | 抵抗変化型メモリ |
Non-Patent Citations (1)
Title |
---|
JPN6016021158; Y.Y.Lin, et al.: 'A Simple New Write Scheme for Low Latency Operation of Phase Change Memory' 2012 Symposium on VLSI Technology (VLSIT 2012) , 201206, pp.51-52, IEEE * |
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US20150294718A1 (en) | 2015-10-15 |
US9245620B2 (en) | 2016-01-26 |
US20140098593A1 (en) | 2014-04-10 |
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EP2907136A1 (en) | 2015-08-19 |
US9858999B2 (en) | 2018-01-02 |
CN104704568A (zh) | 2015-06-10 |
US9099174B2 (en) | 2015-08-04 |
US20180374534A1 (en) | 2018-12-27 |
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US20160104530A1 (en) | 2016-04-14 |
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