JP2009295264A - 相変化メモリ装置及びその読み出し方法 - Google Patents
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- 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
- G11C13/0021—Auxiliary circuits
- G11C13/004—Reading or sensing circuits or methods
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
- G11C5/147—Voltage reference generators, voltage or current regulators; Internally lowered supply levels; Compensation for voltage drops
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- 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
- G11C13/0004—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 comprising amorphous/crystalline phase transition cells
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- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- 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
- G11C13/0021—Auxiliary circuits
- G11C13/0061—Timing circuits or methods
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- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- 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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- 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
- G11C13/0021—Auxiliary circuits
- G11C13/0069—Writing or programming circuits or methods
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- G—PHYSICS
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- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
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- G—PHYSICS
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- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
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- G11C13/0021—Auxiliary circuits
- G11C13/004—Reading or sensing circuits or methods
- G11C2013/0052—Read process characterized by the shape, e.g. form, length, amplitude of the read pulse
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- G11C2013/0054—Read is performed on a reference element, e.g. cell, and the reference sensed value is used to compare the sensed value of the selected cell
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Abstract
【解決手段】本発明の可変抵抗メモリ装置は、ビットラインに接続されるメモリセルと、前記メモリセルに対する書き込み動作以後からの経過時間によって前記ビットラインに第1読み出し電圧及び第2読み出し電圧のうち、何れか一つを選択的に提供するクランプ回路を含む。上述のクランプ回路のバイアス方法によって、書き込み動作と検証読み出し動作間の時間間隔を減らしてもセンシングマージンを確保することができてメモリ速度を高めることができる。
【選択図】図4
Description
データ入出力バッファ560は、外部から提供される入力データDIを書き込みドライバ540及び検証比較器570に提供する。
11 上部電極
12 GST
13 コンタクトプラグ
14 下部電極
15 非晶質ボリューム
120 スイッチ
130 スイッチ制御手段
140 書き込みパルス
150 読み出しパルス
310、410、510 セルアレイ
320、420、520 アドレスデコーダ
330、430、530 ビットライン選択回路
340 センシングバイアス回路
350、550 感知増幅器
360 クランプ電圧発生器
370 レベル選択器
380 制御ロジック
440、540 書き込みドライバ
450 検証読み出し用の感知増幅器
460 データ読み出し用の感知増幅器
470、560 データ入出力バッファ
480、570 検証比較器
490、580 制御ロジック
555 クランプ回路
590 書き込みパルス発生器
610 相変化メモリ装置
620 電源供給部
630 マイクロプロセッサ
640 入出力回路
Claims (10)
- ビットラインに接続されるメモリセルと、
前記メモリセルに対する書き込み動作からの経過時間によって、前記ビットラインに第1読み出し電圧と第2読み出し電圧のうち、何れか一つを選択的に提供するクランプ回路と
を含むことを特徴とする可変抵抗メモリ装置。 - 第1経過時間に提供される前記第1読み出し電圧は、前記第1経過時間より長い第2経過時間に提供される前記第2読み出し電圧より低いことを特徴とする請求項1に記載の可変抵抗メモリ装置。
- 前記第1経過時間は、前記メモリセルに対する検証読み出し動作に対応することを特徴とする請求項2に記載の可変抵抗メモリ装置。
- 前記メモリセルがリセット状態にプログラムされた状態で、前記第1経過時間に前記第1読み出し電圧によって発生する第1読み出し電流と、前記第2経過時間に前記第2読み出し電圧によって発生する第2読み出し電流は、同一の大きさを有することを特徴とする請求項2に記載の可変抵抗メモリ装置。
- 前記メモリセルは、
前記ビットラインに提供される書き込み電流の種類によって異なる大きさの抵抗値を有する可変抵抗体と、
ワードラインを通じて提供される選択信号に応答して選択されるようにスイッチングする選択素子と
を含むことを特徴とする請求項1に記載の可変抵抗メモリ装置。 - 前記可変抵抗体は、カルコゲン混合物(Chalcogenide alloys)に形成されることを特徴とする請求項5に記載の可変抵抗メモリ装置。
- ビットラインに接続されたメモリセルと、
前記ビットラインを第1読み出し電圧及び前記第1読み出し電圧より高い第2読み出し電圧のうち、何れか一つにクランプするクランプ回路と、
前記クランプ回路によって前記ビットラインと電気的に接続され、前記ビットラインの電圧レベルをセンシングする感知増幅器回路と、
読み出しモードによって前記第1読み出し電圧と第2読み出し電圧のうち、何れか一つに前記ビットラインをクランプするように前記クランプ回路を制御する制御ロジックと
を含むことを特徴とする可変抵抗メモリ装置。 - 前記クランプ回路は、
前記ビットラインと、
前記感知増幅器回路をスイッチングするNMOSトランジスタと
を含むことを特徴とする請求項7に記載の可変抵抗メモリ装置。 - 前記制御ロジックは、前記NMOSトランジスタのゲートに前記第1読み出し電圧、又は前記第2読み出し電圧に前記ビットラインをクランプするように第1クランプ電圧、又は第2クランプ電圧を選択的に提供することを特徴とする請求項8に記載の可変抵抗メモリ装置。
- 前記第1クランプ電圧は、検証読み出し動作際に前記クランプ回路に提供されることを特徴とする請求項9に記載の可変抵抗メモリ装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2008-0052739 | 2008-06-04 | ||
KR1020080052739A KR20090126587A (ko) | 2008-06-04 | 2008-06-04 | 상 변화 메모리 장치 및 그것의 읽기 방법 |
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JP2009295264A true JP2009295264A (ja) | 2009-12-17 |
JP5520522B2 JP5520522B2 (ja) | 2014-06-11 |
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US (1) | US7969798B2 (ja) |
JP (1) | JP5520522B2 (ja) |
KR (1) | KR20090126587A (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010061743A (ja) * | 2008-09-04 | 2010-03-18 | Toshiba Corp | 半導体記憶装置 |
JP2013542545A (ja) * | 2010-09-24 | 2013-11-21 | インテル・コーポレーション | 相変化メモリのアクセス情報を決定する方法、装置、およびシステム |
US9082478B2 (en) | 2012-10-29 | 2015-07-14 | Samsung Electronics Co., Ltd. | Nonvolatile memory device using resistance material and method of driving the nonvolatile memory device |
WO2015125473A1 (ja) * | 2014-02-20 | 2015-08-27 | パナソニックIpマネジメント株式会社 | 不揮発性半導体記憶装置 |
WO2016088448A1 (ja) * | 2014-12-05 | 2016-06-09 | ソニー株式会社 | メモリコントローラ、メモリシステム、および、メモリコントローラの制御方法 |
JP2016126815A (ja) * | 2014-12-31 | 2016-07-11 | 株式会社東芝 | 不揮発性半導体記憶装置及びその制御方法 |
Families Citing this family (57)
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 |
KR101477045B1 (ko) * | 2008-10-27 | 2014-12-30 | 삼성전자주식회사 | 커플링 노이즈를 차단하는 가변 저항 메모리 장치 |
US9525570B2 (en) * | 2009-01-05 | 2016-12-20 | Nxp Usa, Inc. | Current sensing circuitry and integrated circuit and method for sensing a current |
KR101038992B1 (ko) * | 2009-04-14 | 2011-06-03 | 주식회사 하이닉스반도체 | 비휘발성 반도체 메모리 회로 |
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KR20100137884A (ko) * | 2009-06-23 | 2010-12-31 | 삼성전자주식회사 | 워드 라인 저항을 보상하는 가변 저항 메모리 장치 |
KR101069680B1 (ko) * | 2009-07-29 | 2011-10-04 | 주식회사 하이닉스반도체 | 비휘발성 반도체 메모리 회로 및 그의 제어 방법 |
KR20110132767A (ko) * | 2010-06-03 | 2011-12-09 | 삼성전자주식회사 | 비휘발성 메모리 장치, 이의 프리차지 전압 제어방법 및 이를 포함하는 장치들 |
US8331164B2 (en) | 2010-12-06 | 2012-12-11 | International Business Machines Corporation | Compact low-power asynchronous resistor-based memory read operation and circuit |
US8374040B2 (en) * | 2011-02-25 | 2013-02-12 | International Business Machines Corporation | Write bandwidth in a memory characterized by a variable write time |
US8913444B1 (en) * | 2011-03-01 | 2014-12-16 | Adesto Technologies Corporation | Read operations and circuits for memory devices having programmable elements, including programmable resistance elements |
US8605531B2 (en) * | 2011-06-20 | 2013-12-10 | Intel Corporation | Fast verify for phase change memory with switch |
US9021227B2 (en) * | 2011-06-22 | 2015-04-28 | Intel Corporation | Drift management in a phase change memory and switch (PCMS) memory device |
US9287498B2 (en) | 2011-09-14 | 2016-03-15 | Intel Corporation | Dielectric thin film on electrodes for resistance change memory devices |
CN103999161B (zh) * | 2011-12-20 | 2016-09-28 | 英特尔公司 | 用于相变存储器漂移管理的设备和方法 |
US8854872B2 (en) * | 2011-12-22 | 2014-10-07 | International Business Machines Corporation | Drift mitigation for multi-bits phase change memory |
US8605497B2 (en) | 2011-12-22 | 2013-12-10 | International Business Machines Corporation | Parallel programming scheme in multi-bit phase change memory |
US8614911B2 (en) | 2011-12-22 | 2013-12-24 | International Business Machines Corporation | Energy-efficient row driver for programming phase change memory |
US8730745B2 (en) * | 2012-03-23 | 2014-05-20 | Kabushiki Kaisha Toshiba | Semiconductor device and method for controlling the same |
US8675423B2 (en) * | 2012-05-07 | 2014-03-18 | Micron Technology, Inc. | Apparatuses and methods including supply current in memory |
US9245926B2 (en) | 2012-05-07 | 2016-01-26 | Micron Technology, Inc. | Apparatuses and methods including memory access in cross point memory |
US9218876B2 (en) | 2012-05-08 | 2015-12-22 | Micron Technology, Inc. | Methods, articles and devices for pulse adjustments to program a memory cell |
US8837198B2 (en) | 2012-10-01 | 2014-09-16 | International Business Machines Corporation | Multi-bit resistance measurement |
US8638598B1 (en) | 2012-10-01 | 2014-01-28 | International Business Machines Corporation | Multi-bit resistance measurement |
US8787057B2 (en) * | 2012-08-15 | 2014-07-22 | Apple Inc. | Fast analog memory cell readout using modified bit-line charging configurations |
US8982602B2 (en) * | 2012-08-30 | 2015-03-17 | Adesto Technologies Corporation | Memory devices, circuits and, methods that apply different electrical conditions in access operations |
US9047945B2 (en) * | 2012-10-15 | 2015-06-02 | Marvell World Trade Ltd. | Systems and methods for reading resistive random access memory (RRAM) cells |
US9042159B2 (en) | 2012-10-15 | 2015-05-26 | Marvell World Trade Ltd. | Configuring resistive random access memory (RRAM) array for write operations |
US8885388B2 (en) | 2012-10-24 | 2014-11-11 | Marvell World Trade Ltd. | Apparatus and method for reforming resistive memory cells |
US9042162B2 (en) | 2012-10-31 | 2015-05-26 | Marvell World Trade Ltd. | SRAM cells suitable for Fin field-effect transistor (FinFET) process |
CN105190760B (zh) | 2012-11-12 | 2018-04-24 | 马维尔国际贸易有限公司 | 在存储器系统中并行地使用具有nmos通过门和pmos通过门两者的sram单元 |
US8988926B2 (en) | 2013-01-11 | 2015-03-24 | Micron Technology, Inc. | Method, system and device for phase change memory with shunt |
GB2510339A (en) * | 2013-01-30 | 2014-08-06 | Ibm | Method and apparatus for read measurement of a plurality of resistive memory cells |
GB201301622D0 (en) | 2013-01-30 | 2013-03-13 | Ibm | Method and apparatus for read measurement of a plurarity of resistive memory cells |
KR102079370B1 (ko) | 2013-02-05 | 2020-02-20 | 삼성전자주식회사 | 비휘발성 메모리 장치 및 그것의 쓰기 방법 |
KR102043723B1 (ko) | 2013-02-28 | 2019-12-02 | 에스케이하이닉스 주식회사 | 반도체 장치 및 이를 포함하는 프로세서와 시스템 |
US9563371B2 (en) | 2013-07-26 | 2017-02-07 | Globalfoundreis Inc. | Self-adjusting phase change memory storage module |
US9368205B2 (en) * | 2013-08-26 | 2016-06-14 | Intel Corporation | Set and reset operation in phase change memory and associated techniques and configurations |
KR102187485B1 (ko) * | 2014-02-21 | 2020-12-08 | 삼성전자주식회사 | 불휘발성 메모리 장치 및 그것의 센싱 방법 |
KR102188061B1 (ko) * | 2014-07-29 | 2020-12-07 | 삼성전자 주식회사 | 메모리 장치, 메모리 시스템 및 메모리 장치의 동작방법 |
JP6520576B2 (ja) | 2015-08-27 | 2019-05-29 | ソニー株式会社 | メモリ、情報処理システムおよびメモリの制御方法 |
US9798481B1 (en) * | 2016-06-15 | 2017-10-24 | Winbond Electronics Corp. | Memory system includes a memory controller coupled to a non-volatile memory array configured to provide special write operation to write data in the non-volatile memory array before a board mount operation is applied and provde a regular write operation after a board mount operation is applied |
KR102474305B1 (ko) * | 2016-06-27 | 2022-12-06 | 에스케이하이닉스 주식회사 | 저항 변화 메모리 장치 및 그 센싱 방법 |
KR102571192B1 (ko) * | 2016-08-29 | 2023-08-28 | 에스케이하이닉스 주식회사 | 센스 앰프, 이를 포함하는 비휘발성 메모리 장치 및 시스템 |
US9786345B1 (en) | 2016-09-16 | 2017-10-10 | Micron Technology, Inc. | Compensation for threshold voltage variation of memory cell components |
KR20180056977A (ko) * | 2016-11-21 | 2018-05-30 | 에스케이하이닉스 주식회사 | 크로스 포인트 어레이 타입 상변화 메모리 장치 및 그 구동방법 |
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KR102657562B1 (ko) * | 2016-12-02 | 2024-04-17 | 에스케이하이닉스 주식회사 | 비휘발성 메모리 장치 |
US10147475B1 (en) * | 2017-05-09 | 2018-12-04 | Micron Technology, Inc. | Refresh in memory based on a set margin |
KR102401183B1 (ko) * | 2017-12-05 | 2022-05-24 | 삼성전자주식회사 | 메모리 장치 및 그 동작 방법 |
US10761754B2 (en) * | 2018-08-07 | 2020-09-01 | Micron Technology, Inc. | Adjustment of a pre-read operation associated with a write operation |
US10818349B2 (en) * | 2018-09-27 | 2020-10-27 | Taiwan Semiconductor Manufacturing Co., Ltd. | Programming method and reading method for memory device |
KR20200145320A (ko) * | 2019-06-21 | 2020-12-30 | 에스케이하이닉스 주식회사 | 리드 디스터번스를 완화시킬 수 있는 비휘발성 메모리 장치 및 이를 이용하는 시스템 |
US11139025B2 (en) | 2020-01-22 | 2021-10-05 | International Business Machines Corporation | Multi-level cell threshold voltage operation of one-selector-one-resistor structure included in a crossbar array |
KR20210105187A (ko) | 2020-02-18 | 2021-08-26 | 에스케이하이닉스 주식회사 | 전압 생성 회로 및 이를 이용하는 비휘발성 메모리 장치 |
US11380411B2 (en) * | 2020-10-09 | 2022-07-05 | Micron Technology, Inc. | Threshold voltage drift tracking systems and methods |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000266304A (ja) * | 1999-03-16 | 2000-09-29 | Toshiba Corp | 減温器制御装置 |
JP2007034542A (ja) * | 2005-07-26 | 2007-02-08 | Hitachi Ltd | プロジェクト評価システム、プロジェクト評価方法及びプロジェクト評価プログラム |
JP2009259336A (ja) * | 2008-04-16 | 2009-11-05 | Spansion Llc | 半導体装置及びその制御方法 |
JP2011521390A (ja) * | 2008-04-22 | 2011-07-21 | クゥアルコム・インコーポレイテッド | 抵抗ベースメモリ回路パラメータ調整のシステムおよび方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US728387A (en) * | 1902-07-23 | 1903-05-19 | Florence Carrico Foos | Ventilator. |
TW559814B (en) * | 2001-05-31 | 2003-11-01 | Semiconductor Energy Lab | Nonvolatile memory and method of driving the same |
JP4004811B2 (ja) * | 2002-02-06 | 2007-11-07 | 株式会社東芝 | 不揮発性半導体記憶装置 |
KR100674992B1 (ko) | 2005-09-08 | 2007-01-29 | 삼성전자주식회사 | 구동전압 레벨을 변경할 수 있는 상 변화 메모리 장치 |
JP2008052867A (ja) | 2006-08-28 | 2008-03-06 | Renesas Technology Corp | 不揮発性半導体記憶装置 |
KR100809334B1 (ko) * | 2006-09-05 | 2008-03-05 | 삼성전자주식회사 | 상변화 메모리 장치 |
JP2008251138A (ja) * | 2007-03-30 | 2008-10-16 | Toshiba Corp | 不揮発性半導体メモリ、不揮発性半導体メモリの制御方法、不揮発性半導体メモリシステム、及びメモリカード |
US7966550B2 (en) * | 2007-03-31 | 2011-06-21 | Sandisk Technologies Inc. | Soft bit data transmission for error correction control in non-volatile memory |
KR101367659B1 (ko) * | 2007-07-12 | 2014-02-25 | 삼성전자주식회사 | 읽기 에러를 줄일 수 있는 멀티 레벨 상 변화 메모리 장치및 그것의 읽기 방법 |
US7787307B2 (en) * | 2008-12-08 | 2010-08-31 | Micron Technology, Inc. | Memory cell shift estimation method and apparatus |
-
2008
- 2008-06-04 KR KR1020080052739A patent/KR20090126587A/ko not_active Application Discontinuation
-
2009
- 2009-04-28 US US12/431,292 patent/US7969798B2/en not_active Expired - Fee Related
- 2009-06-02 JP JP2009133014A patent/JP5520522B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000266304A (ja) * | 1999-03-16 | 2000-09-29 | Toshiba Corp | 減温器制御装置 |
JP2007034542A (ja) * | 2005-07-26 | 2007-02-08 | Hitachi Ltd | プロジェクト評価システム、プロジェクト評価方法及びプロジェクト評価プログラム |
JP2009259336A (ja) * | 2008-04-16 | 2009-11-05 | Spansion Llc | 半導体装置及びその制御方法 |
JP2011521390A (ja) * | 2008-04-22 | 2011-07-21 | クゥアルコム・インコーポレイテッド | 抵抗ベースメモリ回路パラメータ調整のシステムおよび方法 |
Non-Patent Citations (1)
Title |
---|
JPN6013035328; Daniele Ielmini, Andrea L. Lacaita, Davide Mantegazza: 'Recovery and Drift Dynamics of Resistance and Threshold Voltages in Phase-Change Memories' IEEE Transaction on Electron Devices Vol.54,Issue 2, 200702, PP.308-315, IEEE * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010061743A (ja) * | 2008-09-04 | 2010-03-18 | Toshiba Corp | 半導体記憶装置 |
JP2013542545A (ja) * | 2010-09-24 | 2013-11-21 | インテル・コーポレーション | 相変化メモリのアクセス情報を決定する方法、装置、およびシステム |
US9082478B2 (en) | 2012-10-29 | 2015-07-14 | Samsung Electronics Co., Ltd. | Nonvolatile memory device using resistance material and method of driving the nonvolatile memory device |
WO2015125473A1 (ja) * | 2014-02-20 | 2015-08-27 | パナソニックIpマネジメント株式会社 | 不揮発性半導体記憶装置 |
JPWO2015125473A1 (ja) * | 2014-02-20 | 2017-03-30 | パナソニックIpマネジメント株式会社 | 不揮発性半導体記憶装置 |
US10210930B2 (en) | 2014-02-20 | 2019-02-19 | Panasonic Intellectual Property Management Co., Ltd. | Nonvolatile semiconductor storage apparatus |
WO2016088448A1 (ja) * | 2014-12-05 | 2016-06-09 | ソニー株式会社 | メモリコントローラ、メモリシステム、および、メモリコントローラの制御方法 |
JPWO2016088448A1 (ja) * | 2014-12-05 | 2017-09-14 | ソニー株式会社 | メモリコントローラ、メモリシステム、および、メモリコントローラの制御方法 |
JP2016126815A (ja) * | 2014-12-31 | 2016-07-11 | 株式会社東芝 | 不揮発性半導体記憶装置及びその制御方法 |
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US7969798B2 (en) | 2011-06-28 |
US20090303785A1 (en) | 2009-12-10 |
JP5520522B2 (ja) | 2014-06-11 |
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