JP2008526008A - 保持時間及び書き込み速度の改善したpmcメモリ - Google Patents
保持時間及び書き込み速度の改善したpmcメモリ Download PDFInfo
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- JP2008526008A JP2008526008A JP2007547596A JP2007547596A JP2008526008A JP 2008526008 A JP2008526008 A JP 2008526008A JP 2007547596 A JP2007547596 A JP 2007547596A JP 2007547596 A JP2007547596 A JP 2007547596A JP 2008526008 A JP2008526008 A JP 2008526008A
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- chalcogenide
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- 230000015654 memory Effects 0.000 title claims abstract description 85
- 230000014759 maintenance of location Effects 0.000 title description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims description 23
- 150000004770 chalcogenides Chemical class 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000007784 solid electrolyte Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 description 15
- 238000009792 diffusion process Methods 0.000 description 8
- 230000009477 glass transition Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910005866 GeSe Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001617 migratory effect Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 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
- G11C13/0011—RRAM elements whose operation depends upon chemical change comprising conductive bridging RAM [CBRAM] or programming metallization cells [PMCs]
-
- 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
- G11C13/0069—Writing or programming circuits or methods
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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
- H10N70/041—Modification of switching materials after formation, e.g. doping
- H10N70/046—Modification of switching materials after formation, e.g. doping by diffusion, e.g. photo-dissolution
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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
- H10N70/20—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
- H10N70/841—Electrodes
- H10N70/8416—Electrodes adapted for supplying ionic species
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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
- H10N70/861—Thermal details
- H10N70/8613—Heating or cooling means other than resistive heating electrodes, e.g. heater in parallel
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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
-
- 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
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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
-
- 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
- G11C13/0069—Writing or programming circuits or methods
- G11C2013/008—Write by generating heat in the surroundings of the memory material, e.g. thermowrite
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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
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- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/30—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having three or more electrodes, e.g. transistors
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Abstract
Description
‐ 光ドーピングされた(photodoped)カルコゲニドのターミナルの直径は1μm未満であり、好ましくは0.1μm未満である。
‐ 発熱エレメント20の直径は、光ドーピングされたカルコゲニドのターミナルの直径または最大サイズと同じオーダであり、好ましくは、カルコゲニドのターミナルの直径を越える。好ましくは、発熱エレメントの直径は1μm未満であり、好ましくは0.1μm未満である。
‐ 各層の厚さ:
a ‐ 下部電極6及び上部電極8 : 50nm〜200nm
b ‐ 光ドーピングされたカルコゲニド : 厚さ20nmと40nmとの間
c ‐ 発熱エレメント20 : 厚さ100nmと200nmとの間。
第一例 : 金属はAgであり、カルコゲニドはGeSe、GeSまたはGeSbSeである。
第二例 : 金属はCuであり、カルコゲニドはAsSである。
6 陰極
8 陽極
10 上部電極
20 発熱エレメント
22 下部電極
30 熱バリア
Claims (15)
- メモリセル(4、6、8、10)と、メモリへの書き込み時における前記セルの加熱手段(16、18、20)とを備えたPMCメモリ。
- 前記メモリセルは、カルコゲニド型の物質を有する固体電解質を備えた請求項1に記載のメモリ。
- 前記固体電解質は、WO3等の酸化物である請求項2に記載のメモリ。
- 前記カルコゲニドは金属ドーピングされている請求項2または請求項3のいずれかに記載のメモリ。
- 前記金属ドーピングされているカルコゲニドはAgGeSe型から成る請求項4に記載のメモリ。
- 前記金属ドーピングされているカルコゲニドはAgGeSbSe型から成る請求項4に記載のメモリ。
- 前記金属ドーピングされているカルコゲニドはAgGeS型から成る請求項4に記載のメモリ。
- 前記カルコゲニドはAsS型から成る請求項2に記載のメモリ。
- 前記金属ドーピングされているカルコゲニドは銅がドーピングされているAsS型から成る請求項4に記載のメモリ。
- 熱バリアを形成する手段(30)を更に備えた請求項1から請求項9のいずれか一項に記載のメモリ。
- 前記メモリセルは不活性な陰極(6)と活性領域(4)とを備え、前記加熱手段(20)は、前記不活性な陰極に接触して配置されている請求項1から請求項10のいずれか一項に記載のメモリ。
- 前記メモリセルは不活性な陰極(6)と活性領域(4)とを備え、前記加熱手段は、前記不活性な陰極(6)の少なくとも一つのコンタクト電極(22)によって前記不活性な陰極から離隔されている請求項1から請求項11のいずれか一項に記載のメモリ。
- 3つのコンタクト(10、16、18)を備え、その内の一つは、前記メモリセルと前記加熱手段とに共有されている請求項1から請求項12のいずれか一項に記載のメモリ。
- 4つのコンタクト(10、16、18)を備え、その内の二つは前記メモリセル用であり、二つは前記加熱手段用である請求項1から請求項12のいずれか一項に記載のメモリ。
- ライン(WL)に対するアドレス付け手段と、コラム(BL)に対するアドレス付け手段と、前記発熱エレメント(20)に対するアドレス付け手段とを備えた、請求項1から請求項14のいずれか一項に記載のPMCメモリの、マトリックス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0453210 | 2004-12-23 | ||
FR0453210A FR2880177B1 (fr) | 2004-12-23 | 2004-12-23 | Memoire pmc ayant un temps de retention et une vitesse d'ecriture ameliores |
PCT/FR2005/051114 WO2006070151A1 (fr) | 2004-12-23 | 2005-12-20 | Memoire pmc ayant un temps de retention et une vitesse d'ecriture ameliores |
Publications (2)
Publication Number | Publication Date |
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JP2008526008A true JP2008526008A (ja) | 2008-07-17 |
JP4959578B2 JP4959578B2 (ja) | 2012-06-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007547596A Expired - Fee Related JP4959578B2 (ja) | 2004-12-23 | 2005-12-20 | 保持時間及び書き込み速度の改善したイオン導電体物質メモリ及びそのマトリックス |
Country Status (5)
Country | Link |
---|---|
US (1) | US7804704B2 (ja) |
EP (1) | EP1829043B1 (ja) |
JP (1) | JP4959578B2 (ja) |
FR (1) | FR2880177B1 (ja) |
WO (1) | WO2006070151A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008204581A (ja) * | 2007-02-22 | 2008-09-04 | Elpida Memory Inc | 不揮発性ram |
JP2010251529A (ja) * | 2009-04-16 | 2010-11-04 | Sony Corp | 半導体記憶装置およびその製造方法 |
JP2011529630A (ja) * | 2008-07-29 | 2011-12-08 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | 向上した信頼性を有するメモリデバイスおよびcbramメモリ |
JP2013008947A (ja) * | 2011-06-24 | 2013-01-10 | Qinghua Univ | 相変化メモリセル及びそれを利用した相変化メモリデバイス |
JP2014199959A (ja) * | 2009-12-08 | 2014-10-23 | 日本電気株式会社 | 電気化学反応を利用した抵抗変化素子、並びにその製造方法及び動作方法 |
Families Citing this family (11)
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FR2880177B1 (fr) | 2004-12-23 | 2007-05-18 | Commissariat Energie Atomique | Memoire pmc ayant un temps de retention et une vitesse d'ecriture ameliores |
US7724562B2 (en) * | 2006-11-02 | 2010-05-25 | The Board Of Trustees Of The Leland Stanford Junior University | Electrochemical memory with heater |
JP5317420B2 (ja) * | 2007-03-14 | 2013-10-16 | 富士通株式会社 | 抵抗変化メモリのフォーミング方法、抵抗変化メモリ、及び、抵抗変化メモリの製造方法 |
JP5167744B2 (ja) * | 2007-09-28 | 2013-03-21 | 日本電気株式会社 | スイッチング素子の状態設定方法 |
FR2922368A1 (fr) * | 2007-10-16 | 2009-04-17 | Commissariat Energie Atomique | Procede de fabrication d'une memoire cbram ayant une fiabilite amelioree |
KR20090086815A (ko) * | 2008-02-11 | 2009-08-14 | 삼성전자주식회사 | 메모리 장치 및 메모리 열처리 방법 |
US9159413B2 (en) | 2010-12-29 | 2015-10-13 | Stmicroelectronics Pte Ltd. | Thermo programmable resistor based ROM |
US8526214B2 (en) | 2011-11-15 | 2013-09-03 | Stmicroelectronics Pte Ltd. | Resistor thin film MTP memory |
JP5783961B2 (ja) | 2012-07-09 | 2015-09-24 | 株式会社東芝 | 不揮発性記憶装置 |
EP3084827B1 (en) * | 2013-12-18 | 2021-01-27 | Hewlett-Packard Development Company, L.P. | Non-volatile memory element with thermal-assisted switching control |
US11121318B2 (en) | 2020-01-29 | 2021-09-14 | International Business Machines Corporation | Tunable forming voltage for RRAM device |
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JP2008204581A (ja) * | 2007-02-22 | 2008-09-04 | Elpida Memory Inc | 不揮発性ram |
US8437188B2 (en) | 2007-02-22 | 2013-05-07 | Elpida Memory, Inc. | Nonvolatile RAM |
US8717805B2 (en) | 2007-02-22 | 2014-05-06 | Elpida Memory, Inc. | Nonvolatile RAM |
JP2011529630A (ja) * | 2008-07-29 | 2011-12-08 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | 向上した信頼性を有するメモリデバイスおよびcbramメモリ |
JP2010251529A (ja) * | 2009-04-16 | 2010-11-04 | Sony Corp | 半導体記憶装置およびその製造方法 |
JP2014199959A (ja) * | 2009-12-08 | 2014-10-23 | 日本電気株式会社 | 電気化学反応を利用した抵抗変化素子、並びにその製造方法及び動作方法 |
JP2013008947A (ja) * | 2011-06-24 | 2013-01-10 | Qinghua Univ | 相変化メモリセル及びそれを利用した相変化メモリデバイス |
US9099644B2 (en) | 2011-06-24 | 2015-08-04 | Tsinghua University | Phase change memory cell |
Also Published As
Publication number | Publication date |
---|---|
US7804704B2 (en) | 2010-09-28 |
WO2006070151A1 (fr) | 2006-07-06 |
EP1829043A1 (fr) | 2007-09-05 |
FR2880177B1 (fr) | 2007-05-18 |
FR2880177A1 (fr) | 2006-06-30 |
JP4959578B2 (ja) | 2012-06-27 |
US20080007997A1 (en) | 2008-01-10 |
EP1829043B1 (fr) | 2020-01-15 |
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