JP4869006B2 - 半導体記憶装置の制御方法 - Google Patents
半導体記憶装置の制御方法 Download PDFInfo
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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
- G11C13/0009—RRAM elements whose operation depends upon chemical change
- G11C13/0011—RRAM elements whose operation depends upon chemical change comprising conductive bridging RAM [CBRAM] or programming metallization cells [PMCs]
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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
- G11C13/0004—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
- G11C13/0007—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 metal oxide memory material, e.g. perovskites
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- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/20—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having two electrodes, e.g. diodes
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- H10B63/80—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays
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- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/80—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays
- H10B63/82—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays the switching components having a common active material layer
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/30—Resistive cell, memory material aspects
- G11C2213/31—Material having complex metal oxide, e.g. perovskite structure
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/30—Resistive cell, memory material aspects
- G11C2213/32—Material having simple binary metal oxide structure
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/70—Resistive array aspects
- G11C2213/72—Array wherein the access device being a diode
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- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
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- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
- H10N70/231—Multistable switching devices, e.g. memristors based on solid-state phase change, e.g. between amorphous and crystalline phases, Ovshinsky effect
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- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
- H10N70/24—Multistable switching devices, e.g. memristors based on migration or redistribution of ionic species, e.g. anions, vacancies
- H10N70/245—Multistable switching devices, e.g. memristors based on migration or redistribution of ionic species, e.g. anions, vacancies the species being metal cations, e.g. programmable metallization cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
- H10N70/826—Device geometry adapted for essentially vertical current flow, e.g. sandwich or pillar type devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/882—Compounds of sulfur, selenium or tellurium, e.g. chalcogenides
- H10N70/8822—Sulfides, e.g. CuS
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/882—Compounds of sulfur, selenium or tellurium, e.g. chalcogenides
- H10N70/8828—Tellurides, e.g. GeSbTe
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/883—Oxides or nitrides
- H10N70/8833—Binary metal oxides, e.g. TaOx
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Description
子とイオン導電体素子が縦続接続される第1及び第2のメモリセルを有する半導体記憶装
置の制御方法であって、前記ビット線に前記イオン導電体素子をオフ状態とするためのオ
フ電圧を設定し、前記ワード線を接地電位に設定して、前記第1及び第2のメモリセルの
イオン導電体素子がオフ状態であるイニシャライズ状態にするステップと、前記ビット線
及びワード線をスタンバイ電圧に設定して、前記第1及び第2のメモリセルのイオン導電
体素子をスタンバイ状態にするステップと、前記第2のメモリセルの前記ビット線をセッ
ト電圧、リセット電圧、或いは読み出し電圧に設定し、前記第2のメモリセルの前記ワー
ド線を前記接地電位に設定して前記第2のメモリセルのイオン導電体素子をオフ状態にす
るステップと、前記第1のメモリセルの前記ワード線を前記セット電圧に設定し、前記第
1のメモリセルの前記ビット線を前記接地電位に設定し、前記第1のメモリセルの前記イ
オン導電体素子に電流を流し、前記第1のメモリセルをセット状態に設定するステップと
、前記第1のメモリセルの前記ワード線を前記リセット電圧に設定し、前記第1のメモリ
セルの前記ビット線を前記接地電位に設定し、前記第1のメモリセルの前記イオン導電体
素子に電流を流し、前記第1のメモリセルをリセット状態に設定するステップと、前記第
1のメモリセルの前記ワード線を前記読み出し電圧に設定し、前記第1のメモリセルの前
記ビット線を前記接地電位に設定し、前記第1のメモリセルの前記イオン導電体素子に電
流を流し、前記第1のメモリセルの前記抵抗変化素子に記憶される情報を読み出すステッ
プと、前記第1のメモリセルの動作終了後、前記第1のメモリセルの前記ビット線を前記
オフ電圧に設定し、前記第1のメモリセルの前記ワード線を前記接地電位に設定にするス
テップと、を具備することを特徴とする。
Vreset≧Vset≧Vread・・・・・・・・・・・・・・・・・式(1)
Vss<Vstby<Vread・・・・・・・・・・・・・・・・・・式(2)
に設定される。
(付記1) マトリックス状に配置されるビット線及びワード線と、前記ビット線及びワード線の交点に設けられ、前記ビット線と前記ワード線の間に、抵抗変化素子とイオン導電体素子が縦続接続され、イオン導電体素子は第1の電極膜、イオン導電体膜、及び第2の電極膜が積層構成され、抵抗変化素子は第2の電極膜、抵抗変化膜、及び第3の電極膜が積層構成されるメモリセルとを具備する半導体記憶装置。
2 絶縁膜
3、11 配線層
4 層間絶縁膜
5、6、8、10、21、23、25 電極膜
7、22 イオン導電体膜
9 相変化膜
24 遷移金属酸化膜
40、40a、40b メモリセル
BL1、BL2 ビット線
ID1a、ID1b、ID2a、ID2b イオン導電体素子
SR1a、SR1b、SR2a、SR2b 相変化素子
Vh High電圧
Voff オフ電圧
Vread 読み出し電圧
Vreset リセット電圧
Vset セット電圧
Vss 低電位側電源電圧(接地電位)
Vstby スタンバイ電圧
WL1、WL2 ワード線
Claims (1)
- ビット線とワード線の間に抵抗変化素子とイオン導電体素子が縦続接続される第1及び第
2のメモリセルを有する半導体記憶装置の制御方法であって、
前記ビット線に前記イオン導電体素子をオフ状態とするためのオフ電圧を設定し、前記ワ
ード線を接地電位に設定して、前記第1及び第2のメモリセルのイオン導電体素子がオフ
状態であるイニシャライズ状態にするステップと、
前記ビット線及びワード線をスタンバイ電圧に設定して、前記第1及び第2のメモリセル
のイオン導電体素子をスタンバイ状態にするステップと、
前記第2のメモリセルの前記ビット線をセット電圧、リセット電圧、或いは読み出し電圧
に設定し、前記第2のメモリセルの前記ワード線を前記接地電位に設定して前記第2のメ
モリセルのイオン導電体素子をオフ状態にするステップと、
前記第1のメモリセルの前記ワード線を前記セット電圧に設定し、前記第1のメモリセル
の前記ビット線を前記接地電位に設定し、前記第1のメモリセルの前記イオン導電体素子
に電流を流し、前記第1のメモリセルをセット状態に設定するステップと、
前記第1のメモリセルの前記ワード線を前記リセット電圧に設定し、前記第1のメモリセ
ルの前記ビット線を前記接地電位に設定し、前記第1のメモリセルの前記イオン導電体素
子に電流を流し、前記第1のメモリセルをリセット状態に設定するステップと、
前記第1のメモリセルの前記ワード線を前記読み出し電圧に設定し、前記第1のメモリセ
ルの前記ビット線を前記接地電位に設定し、前記第1のメモリセルの前記イオン導電体素
子に電流を流し、前記第1のメモリセルの前記抵抗変化素子に記憶される情報を読み出す
ステップと、
前記第1のメモリセルの動作終了後、前記第1のメモリセルの前記ビット線を前記オフ電
圧に設定し、前記第1のメモリセルの前記ワード線を前記接地電位に設定にするステップ
と、
を具備することを特徴とする半導体記憶装置の制御方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006263308A JP4869006B2 (ja) | 2006-09-27 | 2006-09-27 | 半導体記憶装置の制御方法 |
| CN200710161603XA CN101154667B (zh) | 2006-09-27 | 2007-09-27 | 半导体存储器设备以及控制该设备的方法 |
| US11/905,050 US7791060B2 (en) | 2006-09-27 | 2007-09-27 | Semiconductor memory device and method of controlling the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006263308A JP4869006B2 (ja) | 2006-09-27 | 2006-09-27 | 半導体記憶装置の制御方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008085071A JP2008085071A (ja) | 2008-04-10 |
| JP4869006B2 true JP4869006B2 (ja) | 2012-02-01 |
Family
ID=39256207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006263308A Expired - Fee Related JP4869006B2 (ja) | 2006-09-27 | 2006-09-27 | 半導体記憶装置の制御方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7791060B2 (ja) |
| JP (1) | JP4869006B2 (ja) |
| CN (1) | CN101154667B (ja) |
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| CN111211328B (zh) * | 2020-01-15 | 2021-04-06 | 桑顿新能源科技有限公司 | 锂离子电池正极材料及其制备方法、锂离子电池正极、锂离子电池和设备 |
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| US3753110A (en) | 1970-12-24 | 1973-08-14 | Sanyo Electric Co | Timing apparatus using electrochemical memory device |
| US6418049B1 (en) * | 1997-12-04 | 2002-07-09 | Arizona Board Of Regents | Programmable sub-surface aggregating metallization structure and method of making same |
| US20040124407A1 (en) * | 2000-02-11 | 2004-07-01 | Kozicki Michael N. | Scalable programmable structure, an array including the structure, and methods of forming the same |
| US6927411B2 (en) | 2000-02-11 | 2005-08-09 | Axon Technologies Corporation | Programmable structure, an array including the structure, and methods of forming the same |
| JP2002246561A (ja) * | 2001-02-19 | 2002-08-30 | Dainippon Printing Co Ltd | 記憶セル、この記録セルを用いたメモリマトリックス及びこれらの製造方法 |
| CN100448049C (zh) * | 2001-09-25 | 2008-12-31 | 独立行政法人科学技术振兴机构 | 使用固体电解质的电气元件和存储装置及其制造方法 |
| US6847047B2 (en) * | 2002-11-04 | 2005-01-25 | Advanced Micro Devices, Inc. | Methods that facilitate control of memory arrays utilizing zener diode-like devices |
| CN1759450B (zh) | 2003-03-18 | 2012-02-29 | 株式会社东芝 | 可编程阻抗存储器器件 |
| JP4792714B2 (ja) * | 2003-11-28 | 2011-10-12 | ソニー株式会社 | 記憶素子及び記憶装置 |
| US7364935B2 (en) | 2004-10-29 | 2008-04-29 | Macronix International Co., Ltd. | Common word line edge contact phase-change memory |
| JP4345676B2 (ja) | 2005-01-12 | 2009-10-14 | エルピーダメモリ株式会社 | 半導体記憶装置 |
| US7307268B2 (en) * | 2005-01-19 | 2007-12-11 | Sandisk Corporation | Structure and method for biasing phase change memory array for reliable writing |
| US7259038B2 (en) | 2005-01-19 | 2007-08-21 | Sandisk Corporation | Forming nonvolatile phase change memory cell having a reduced thermal contact area |
| US7304368B2 (en) * | 2005-08-11 | 2007-12-04 | Micron Technology, Inc. | Chalcogenide-based electrokinetic memory element and method of forming the same |
| US7956358B2 (en) * | 2006-02-07 | 2011-06-07 | Macronix International Co., Ltd. | I-shaped phase change memory cell with thermal isolation |
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| US20080089121A1 (en) | 2008-04-17 |
| CN101154667B (zh) | 2012-03-14 |
| US7791060B2 (en) | 2010-09-07 |
| CN101154667A (zh) | 2008-04-02 |
| JP2008085071A (ja) | 2008-04-10 |
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