KR100723420B1 - 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자 - Google Patents
비정질 합금 산화층을 포함하는 비휘발성 메모리 소자 Download PDFInfo
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- KR100723420B1 KR100723420B1 KR1020060016224A KR20060016224A KR100723420B1 KR 100723420 B1 KR100723420 B1 KR 100723420B1 KR 1020060016224 A KR1020060016224 A KR 1020060016224A KR 20060016224 A KR20060016224 A KR 20060016224A KR 100723420 B1 KR100723420 B1 KR 100723420B1
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- oxide layer
- memory device
- amorphous alloy
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 28
- 229910044991 metal oxide Inorganic materials 0.000 title 1
- 150000004706 metal oxides Chemical class 0.000 title 1
- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 229910052723 transition metal Inorganic materials 0.000 claims description 7
- 150000003624 transition metals Chemical class 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 5
- 229910002064 alloy oxide Inorganic materials 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000010409 thin film Substances 0.000 description 11
- 229910000314 transition metal oxide Inorganic materials 0.000 description 11
- 238000002441 X-ray diffraction Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 7
- VRIVJOXICYMTAG-IYEMJOQQSA-L iron(ii) gluconate Chemical compound [Fe+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O VRIVJOXICYMTAG-IYEMJOQQSA-L 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02197—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides the material having a perovskite structure, e.g. BaTiO3
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31691—Inorganic layers composed of oxides or glassy oxides or oxide based glass with perovskite structure
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/47—Schottky barrier electrodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- 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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- 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
- H10N70/883—Oxides or nitrides
- H10N70/8833—Binary metal oxides, e.g. TaOx
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (7)
- 비휘발성 반도체 메모리 소자에 있어서,하부 전극;상기 하부 전극 상에 비정질 합금 산화물을 포함하여 형성된 산화층; 및상기 산화층 상에 형성된 상부 전극;을 포함하는 것을 특징으로 하는 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자.
- 제 1항에 있어서,상기 산화층은, 전이 금속을 포함하는 제 1금속 및 상기 제 1금속과 결정 특성이 서로 다른 제 2금속의 합금 산화물로 형성된 것을 특징으로 하는 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자.
- 제 2항에 있어서,상기 제 1금속은 전이 금속으로는 Ni, Ti, Hf, Zr, Zn, W, Co 또는 Nb 중 어느 하나인 것을 특징으로 하는 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자.
- 제 2항에 있어서,상기 제 2금속은 Al 또는 In인 것을 특징으로 하는 비정질 합금 산화층을 포 함하는 비휘발성 메모리 소자.
- 제 1항에 있어서,상기 하부 전극 또는 상부 전극은 상기 산화층과 쇼트키 접합 구조인 것을 특징으로 하는 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자.
- 제 5항에 있어서,상기 산화층이 n형 산화물로 형성된 경우, 상기 하부 전극 또는 상부 전극 중 어느 하나는 Pt, Ir, Ru 또는 이들의 산화물로 형성된 것을 특징으로 하는 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자.
- 제 5항에 있어서,상기 산화층이 p형 산화물로 형성된 경우, 상기 하부 전극 또는 상부 전극 중 어느 하나는 Ti 또는 Ag로 형성된 것을 특징으로 하는 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1020060016224A KR100723420B1 (ko) | 2006-02-20 | 2006-02-20 | 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자 |
CN2006101636363A CN101192647B (zh) | 2006-02-20 | 2006-12-01 | 包括无定形合金金属氧化物层的非易失性存储装置 |
US11/704,365 US8455854B2 (en) | 2006-02-20 | 2007-02-09 | Nonvolatile memory device including amorphous alloy metal oxide layer and method of manufacturing the same |
JP2007038209A JP4938489B2 (ja) | 2006-02-20 | 2007-02-19 | 非晶質合金酸化層を含む不揮発性メモリ素子 |
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KR1020060016224A KR100723420B1 (ko) | 2006-02-20 | 2006-02-20 | 비정질 합금 산화층을 포함하는 비휘발성 메모리 소자 |
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CN (1) | CN101192647B (ko) |
Cited By (2)
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KR101307253B1 (ko) | 2007-06-29 | 2013-09-11 | 재단법인서울대학교산학협력재단 | 저항변화기록소자의 정보기록방법, 저항변화기록소자의제조방법 및 이를 이용한 저항변화기록소자 |
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- 2006-12-01 CN CN2006101636363A patent/CN101192647B/zh active Active
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한국공개공보 제2004-49291호 |
한국공개공보 제2006-83071호 |
한국공개특허 제2006-83583호 |
한국등록특허번호 제0647332호 |
한국등록특허번호 제0647333호 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101307253B1 (ko) | 2007-06-29 | 2013-09-11 | 재단법인서울대학교산학협력재단 | 저항변화기록소자의 정보기록방법, 저항변화기록소자의제조방법 및 이를 이용한 저항변화기록소자 |
WO2009015298A2 (en) * | 2007-07-25 | 2009-01-29 | Intermolecular, Inc. | Nonvolatile memory elements |
WO2009015298A3 (en) * | 2007-07-25 | 2009-04-02 | Intermolecular Inc | Nonvolatile memory elements |
US8294219B2 (en) | 2007-07-25 | 2012-10-23 | Intermolecular, Inc. | Nonvolatile memory element including resistive switching metal oxide layers |
Also Published As
Publication number | Publication date |
---|---|
JP2007227922A (ja) | 2007-09-06 |
CN101192647B (zh) | 2012-05-02 |
CN101192647A (zh) | 2008-06-04 |
US20070257257A1 (en) | 2007-11-08 |
US8455854B2 (en) | 2013-06-04 |
JP4938489B2 (ja) | 2012-05-23 |
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