JP2009059902A - 固体メモリ - Google Patents
固体メモリ Download PDFInfo
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- JP2009059902A JP2009059902A JP2007226022A JP2007226022A JP2009059902A JP 2009059902 A JP2009059902 A JP 2009059902A JP 2007226022 A JP2007226022 A JP 2007226022A JP 2007226022 A JP2007226022 A JP 2007226022A JP 2009059902 A JP2009059902 A JP 2009059902A
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- thin film
- atoms
- recording
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- film containing
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- 239000007787 solid Substances 0.000 title claims 2
- 239000010409 thin film Substances 0.000 claims abstract description 15
- 229910052732 germanium Inorganic materials 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 4
- 229910052714 tellurium Inorganic materials 0.000 claims description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims 3
- 238000009792 diffusion process Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 12
- 150000001786 chalcogen compounds Chemical class 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 230000007704 transition Effects 0.000 abstract description 3
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 19
- 239000010408 film Substances 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 8
- 229910005900 GeTe Inorganic materials 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 239000013081 microcrystal Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 229910000618 GeSbTe Inorganic materials 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000002356 single layer Substances 0.000 description 3
- 229910001215 Te alloy Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005621 ferroelectricity Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 230000005469 synchrotron radiation Effects 0.000 description 1
- BPDQXJZWVBPDSN-UHFFFAOYSA-N tellanylideneantimony;tellurium Chemical compound [Te].[Te]=[Sb].[Te]=[Sb] BPDQXJZWVBPDSN-UHFFFAOYSA-N 0.000 description 1
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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
- G11C13/0009—RRAM elements whose operation depends upon chemical change
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
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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
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/021—Formation of switching materials, e.g. deposition of layers
- H10N70/026—Formation of switching materials, e.g. deposition of layers by physical vapor deposition, e.g. sputtering
-
- 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
- H10N70/20—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
-
- 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
- H10N70/20—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
- H10N70/235—Multistable switching devices, e.g. memristors based on solid-state phase change, e.g. between amorphous and crystalline phases, Ovshinsky effect between different crystalline phases, e.g. cubic and hexagonal
-
- 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
- H10N70/8825—Selenides, e.g. GeSe
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/15—Structures with periodic or quasi periodic potential variation, e.g. multiple quantum wells, superlattices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/18—Selenium or tellurium only, apart from doping materials or other impurities
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- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Computer Hardware Design (AREA)
- Semiconductor Memories (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
【解決手段】本願発明は、Geを含む薄膜とSbを含む薄膜を超格子構造で作成し、上記課題を解決し、繰り返し記録消去回数を1015回とした。
【選択図】図4
Description
実施例1と同様に一般的な自己抵抗加熱型の基本構成により相変化RAMを作成した。記録膜にはGe2Sb2Te5の単層膜を20nm形成した。セルの大きさは、100X100nm2である。このデバイスに、電圧をプログラム的に与えて、記録及び消去時の電流値を測定した。その結果、記録時の電流値は、1.0mA、消去時の電流値は0.4mAであった。なお、パルスの照射時間は、実施例1と同じとした。この電流値での繰り返し記録消去回数を測定したところ、その値は1012回であった。
Claims (5)
- テルル(Te)を主成分とする固体メモリであって、物質の相変態に起因して電気特性が変化するものであり、データを記録及び再生する材料が該相変態を生じる母相からなる薄膜の人工的な超格子構造の積層構造によって構成されることを特徴とする固体メモリ。
- 請求項1に記載の固体メモリにおいて、前記積層構造は、ゲルマニウム(Ge)原子を含む合金薄膜及びアンチモン(Sb)原子を含む合金薄膜とから構成されることを特徴とする固体メモリ。
- 請求項1又は2に記載の固体メモリにおいて、前記薄膜の膜厚は、0.3nm以上2nm以下であることを特徴とする固体メモリ。
- 請求項2に記載の固体メモリにおいて、前記ゲルマニウム(Ge)原子を含む合金薄膜から前記アンチモン(Sb)を含む合金薄膜との界面に向かってゲルマニウム(Ge)原子を異方性拡散させることによってデータを記録することを特徴とする固体メモリ。
- 請求項2に記載の固体メモリにおいて、前記ゲルマニウム(Ge)原子を含む合金薄膜と前記アンチモン(Sb)を含む合金薄膜との界面に蓄積したゲルマニウム(Ge)原子を、該ゲルマニウム(Ge)原子を含む合金薄膜に向かって異方性拡散させることによってデータを消去することを特徴とする固体メモリ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007226022A JP4621897B2 (ja) | 2007-08-31 | 2007-08-31 | 固体メモリ |
PCT/JP2008/060858 WO2009028250A1 (ja) | 2007-08-31 | 2008-06-13 | 固体メモリ |
KR1020107006526A KR101072759B1 (ko) | 2007-08-31 | 2008-06-13 | 고체 메모리 |
US12/733,296 US20100200828A1 (en) | 2007-08-31 | 2008-06-13 | Solid memory |
TW097133301A TWI376802B (en) | 2007-08-31 | 2008-08-29 | Solid-state memory |
US13/923,454 US9153315B2 (en) | 2007-08-31 | 2013-06-21 | Solid memory |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007226022A JP4621897B2 (ja) | 2007-08-31 | 2007-08-31 | 固体メモリ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009059902A true JP2009059902A (ja) | 2009-03-19 |
JP4621897B2 JP4621897B2 (ja) | 2011-01-26 |
Family
ID=40386979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007226022A Active JP4621897B2 (ja) | 2007-08-31 | 2007-08-31 | 固体メモリ |
Country Status (5)
Country | Link |
---|---|
US (2) | US20100200828A1 (ja) |
JP (1) | JP4621897B2 (ja) |
KR (1) | KR101072759B1 (ja) |
TW (1) | TWI376802B (ja) |
WO (1) | WO2009028250A1 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101924181A (zh) * | 2009-06-11 | 2010-12-22 | 尔必达存储器株式会社 | 固态存储器、数据处理***和数据处理装置 |
JP2012219330A (ja) * | 2011-04-08 | 2012-11-12 | Ulvac Japan Ltd | 相変化メモリの形成装置、及び相変化メモリの形成方法 |
JP2014127641A (ja) * | 2012-12-27 | 2014-07-07 | Toshiba Corp | 記憶装置 |
JP2014165427A (ja) * | 2013-02-27 | 2014-09-08 | Toshiba Corp | 不揮発性半導体記憶装置 |
JP2015005600A (ja) * | 2013-06-20 | 2015-01-08 | 独立行政法人産業技術総合研究所 | 相変化デバイス |
JP2015072977A (ja) * | 2013-10-02 | 2015-04-16 | 株式会社日立製作所 | 不揮発性半導体記憶装置及びその製造方法 |
US9019777B2 (en) | 2012-08-29 | 2015-04-28 | Kabushiki Kaisha Toshiba | Nonvolatile semiconductor memory device and operating method of the same |
US9029068B2 (en) | 2009-10-28 | 2015-05-12 | University Of Tsukuba | Phase change device having phase change recording film, and phase change switching method for phase change recording film |
JP2017168664A (ja) * | 2016-03-16 | 2017-09-21 | 東芝メモリ株式会社 | 半導体記憶装置 |
Families Citing this family (17)
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---|---|---|---|---|
JP4621897B2 (ja) | 2007-08-31 | 2011-01-26 | 独立行政法人産業技術総合研究所 | 固体メモリ |
JP4595125B2 (ja) | 2007-08-31 | 2010-12-08 | 独立行政法人産業技術総合研究所 | 固体メモリ |
JP4599598B2 (ja) | 2009-03-04 | 2010-12-15 | 独立行政法人産業技術総合研究所 | 固体メモリ |
JP2010263131A (ja) | 2009-05-08 | 2010-11-18 | Elpida Memory Inc | 超格子デバイス及びその製造方法、並びに、超格子デバイスを含む固体メモリ、データ処理システム及びデータ処理装置 |
US8835272B1 (en) * | 2013-02-28 | 2014-09-16 | Sandia Corporation | Passive electrically switchable circuit element having improved tunability and method for its manufacture |
JP6014521B2 (ja) * | 2013-03-11 | 2016-10-25 | 株式会社日立製作所 | 相変化メモリおよび半導体記録再生装置 |
JP2015015309A (ja) | 2013-07-03 | 2015-01-22 | 株式会社東芝 | 記憶装置 |
US9984745B2 (en) | 2013-11-15 | 2018-05-29 | National Institute Of Advanced Industrial Science And Technology | Spin electronic memory, information recording method and information reproducing method |
WO2015174240A1 (ja) | 2014-05-12 | 2015-11-19 | 国立研究開発法人産業技術総合研究所 | 結晶配向層積層構造体、電子メモリ及び結晶配向層積層構造体の製造方法 |
US9812639B2 (en) | 2014-09-10 | 2017-11-07 | Toshiba Memory Corporation | Non-volatile memory device |
US10543545B2 (en) | 2015-03-16 | 2020-01-28 | National Institute Of Advanced Industrial Science And Technology | Method of initializing multiferroic element |
CN108539013B (zh) * | 2015-04-27 | 2021-04-27 | 江苏理工学院 | 一种用于高速低功耗相变存储器的Ge/Sb类超晶格相变薄膜材料 |
US10580976B2 (en) | 2018-03-19 | 2020-03-03 | Sandisk Technologies Llc | Three-dimensional phase change memory device having a laterally constricted element and method of making the same |
US20210202839A1 (en) | 2018-07-10 | 2021-07-01 | National Institute Of Advanced Industrial Science And Technology | Stacked structure and method of manufacturing same, and semiconductor device |
JP2020155569A (ja) * | 2019-03-20 | 2020-09-24 | キオクシア株式会社 | 記憶装置 |
JP2021190574A (ja) | 2020-05-29 | 2021-12-13 | キオクシア株式会社 | 記憶装置 |
CN113611798B (zh) * | 2021-07-02 | 2023-08-29 | 深圳大学 | 多层相变薄膜及其相变存储器单元的制备方法 |
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JP2014127641A (ja) * | 2012-12-27 | 2014-07-07 | Toshiba Corp | 記憶装置 |
JP2014165427A (ja) * | 2013-02-27 | 2014-09-08 | Toshiba Corp | 不揮発性半導体記憶装置 |
JP2015005600A (ja) * | 2013-06-20 | 2015-01-08 | 独立行政法人産業技術総合研究所 | 相変化デバイス |
US9177640B2 (en) | 2013-06-20 | 2015-11-03 | Hitachi, Ltd. | Multi-level recording in a superlattice phase change memory cell |
JP2015072977A (ja) * | 2013-10-02 | 2015-04-16 | 株式会社日立製作所 | 不揮発性半導体記憶装置及びその製造方法 |
JP2017168664A (ja) * | 2016-03-16 | 2017-09-21 | 東芝メモリ株式会社 | 半導体記憶装置 |
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JP4621897B2 (ja) | 2011-01-26 |
WO2009028250A1 (ja) | 2009-03-05 |
US9153315B2 (en) | 2015-10-06 |
TW200935599A (en) | 2009-08-16 |
KR101072759B1 (ko) | 2011-10-11 |
US20100200828A1 (en) | 2010-08-12 |
TWI376802B (en) | 2012-11-11 |
KR20100047329A (ko) | 2010-05-07 |
US20130279247A1 (en) | 2013-10-24 |
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