JP6215523B2 - Ru含有酸素拡散バリア - Google Patents
Ru含有酸素拡散バリア Download PDFInfo
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- JP6215523B2 JP6215523B2 JP2012228244A JP2012228244A JP6215523B2 JP 6215523 B2 JP6215523 B2 JP 6215523B2 JP 2012228244 A JP2012228244 A JP 2012228244A JP 2012228244 A JP2012228244 A JP 2012228244A JP 6215523 B2 JP6215523 B2 JP 6215523B2
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- 230000004888 barrier function Effects 0.000 title claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title description 4
- 239000001301 oxygen Substances 0.000 title description 4
- 229910052760 oxygen Inorganic materials 0.000 title description 4
- 238000009792 diffusion process Methods 0.000 title description 3
- 239000003990 capacitor Substances 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 54
- 239000000463 material Substances 0.000 claims description 26
- 230000003647 oxidation Effects 0.000 claims description 24
- 238000007254 oxidation reaction Methods 0.000 claims description 24
- 238000000151 deposition Methods 0.000 claims description 21
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 14
- 230000008021 deposition Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 7
- 229910002367 SrTiO Inorganic materials 0.000 claims description 4
- 238000011534 incubation Methods 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(iv) oxide Chemical compound O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 claims description 3
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 238000000231 atomic layer deposition Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 239000007772 electrode material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 208000012766 Growth delay Diseases 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 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
- 239000011261 inert gas Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000000678 plasma activation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/65—Electrodes comprising a noble metal or a noble metal oxide, e.g. platinum (Pt), ruthenium (Ru), ruthenium dioxide (RuO2), iridium (Ir), iridium dioxide (IrO2)
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
- C23C16/0281—Deposition of sub-layers, e.g. to promote the adhesion of the main coating of metallic sub-layers
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
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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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
- H01L21/28562—Selective deposition
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
- H01L21/76849—Barrier, adhesion or liner layers formed in openings in a dielectric the layer being positioned on top of the main fill metal
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76855—After-treatment introducing at least one additional element into the layer
- H01L21/76856—After-treatment introducing at least one additional element into the layer by treatment in plasmas or gaseous environments, e.g. nitriding a refractory metal liner
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/7687—Thin films associated with contacts of capacitors
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- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/75—Electrodes comprising two or more layers, e.g. comprising a barrier layer and a metal layer
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
- H01L28/90—Electrodes with an enlarged surface, e.g. formed by texturisation having vertical extensions
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Description
リセスを備えたベース構造を得る工程であって、リセスは導電性下部電極プラグを露出させる工程と、
ベース構造材料に比較した下部電極プラグ上へのRu成長の培養時間(incubation time)の違いに基づいて、下部電極プラグ上にRuを選択成長させる工程と、
選択成長したRuを酸化する工程と、
酸化したRuの上にRu含有下部電極を堆積する工程と、
Ru含有下部電極の上に誘電体層を形成する工程と、
誘電体層の上に導電性上部電極を形成する工程と、を含む。
Claims (10)
- MIMキャパシタ構造を形成する方法であって、
TiNまたはWからなる導電性の下部電極プラグを露出させるリセスを備えたベース構造を得る工程と、
ベース構造材料に比較した下部電極プラグ上へのRu成長の培養時間の違いに基づいて、下部電極プラグ上にRuを選択成長させる工程と、
選択成長したRuを部分的に酸化して、Ruの上に酸化したRuの酸化バリアを形成する工程と、
酸化したRuの酸化バリアの上にRu含有下部電極を堆積する工程と、
Ru含有下部電極の上に誘電体層を形成する工程と、
誘電体層の上に導電性の上部電極を形成する工程と、を含む方法。 - MIMキャパシタ構造を形成する工程は、内部キャパシタを形成する工程を含む請求項1にかかる方法。
- Ru含有下部電極を堆積する工程は、リセス中に、Ru含有材料層のコンフォーマル堆積工程を含む請求項2に記載の方法。
- 導電性の上部電極を形成する工程は、導電性材料層を堆積およびエッチバックし、導電性材料でリセスを実質的に完全に充填する工程を含む請求項3に記載の方法。
- MIMキャパシタ構造を形成する工程は、外部キャパシタを形成する工程を含む請求項1に記載の方法。
- Ru含有下部電極を堆積する工程は、Ru含有材料層の堆積およびエッチバックを行い、Ru含有材料でリセスを実質的に完全に充填する工程を含む請求項5に記載の方法。
- 更に、導電性の上部電極を形成する前に、リセスを規定する側壁を除去する工程を含む請求項5または6に記載の方法。
- 選択成長したRuを酸化する工程は、500℃より低温での酸化を含む請求項1〜7のいずれかに記載の方法。
- 誘電体層を形成する工程は、high−k誘電体層を形成する工程を含む請求項1〜8のいずれかに記載の方法。
- high−k誘電体層は、チタン酸ストロンチウム(STO;SrTiO3)、二酸化ハフニウム(HfO2)、または二酸化ジルコニウム(ZrO2)を含む請求項9に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11186243.9 | 2011-10-21 | ||
EP11186243.9A EP2584588B1 (en) | 2011-10-21 | 2011-10-21 | Method of forming MIM capacitor with Ru-comprising oxygen diffusion barrier |
Publications (2)
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JP2013089964A JP2013089964A (ja) | 2013-05-13 |
JP6215523B2 true JP6215523B2 (ja) | 2017-10-18 |
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US (1) | US8518793B2 (ja) |
EP (1) | EP2584588B1 (ja) |
JP (1) | JP6215523B2 (ja) |
Families Citing this family (4)
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DE102014226138A1 (de) | 2014-12-16 | 2016-06-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum Herstellen einer Vorrichtung mit einer dreidimensionalen magnetischen Struktur |
DE102016215616B4 (de) | 2016-08-19 | 2020-02-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum Herstellen einer magnetischen Struktur und Vorrichtung |
DE102016215617A1 (de) | 2016-08-19 | 2018-02-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum Herstellen eines Hohlraums mit poröser Struktur |
US10847410B2 (en) * | 2018-09-13 | 2020-11-24 | Taiwan Semiconductor Manufacturing Co., Ltd. | Ruthenium-containing semiconductor structure and method of manufacturing the same |
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CN1054702C (zh) | 1995-06-26 | 2000-07-19 | 现代电子产业株式会社 | 制造半导体器件电容器的方法 |
JPH1174487A (ja) * | 1997-06-30 | 1999-03-16 | Fujitsu Ltd | 半導体装置及びその製造方法 |
KR100458084B1 (ko) | 1997-12-27 | 2005-06-07 | 주식회사 하이닉스반도체 | 누설전류가 감소된 하부전극을 갖는 강유전체 커패시터 형성 방법 |
US6780758B1 (en) * | 1998-09-03 | 2004-08-24 | Micron Technology, Inc. | Method of establishing electrical contact between a semiconductor substrate and a semiconductor device |
JP3976462B2 (ja) * | 2000-01-26 | 2007-09-19 | エルピーダメモリ株式会社 | 半導体装置の製造方法 |
JP2001313379A (ja) | 2000-04-28 | 2001-11-09 | Nec Corp | 半導体メモリの製造方法及び容量素子の製造方法 |
JP2002222934A (ja) * | 2001-01-29 | 2002-08-09 | Nec Corp | 半導体装置およびその製造方法 |
JP4088052B2 (ja) * | 2001-07-17 | 2008-05-21 | 株式会社東芝 | 半導体装置の製造方法 |
US7344982B2 (en) * | 2003-11-24 | 2008-03-18 | Arizona Board Of Regents, Acting For And On Behalf Of Arizona State University | System and method of selectively depositing Ruthenium films by digital chemical vapor deposition |
KR100712502B1 (ko) * | 2004-11-30 | 2007-05-02 | 삼성전자주식회사 | 금속-유전막-금속 캐패시터 및 그 제조방법 |
US8025922B2 (en) | 2005-03-15 | 2011-09-27 | Asm International N.V. | Enhanced deposition of noble metals |
KR100639219B1 (ko) * | 2005-05-27 | 2006-10-30 | 주식회사 하이닉스반도체 | 반도체 소자의 캐패시터 형성방법 |
US8298909B2 (en) | 2006-12-27 | 2012-10-30 | Hynix Semiconductor Inc. | Semiconductor device and method for fabricating the same |
US7829454B2 (en) * | 2007-09-11 | 2010-11-09 | Tokyo Electron Limited | Method for integrating selective ruthenium deposition into manufacturing of a semiconductior device |
US7799681B2 (en) | 2008-07-15 | 2010-09-21 | Tokyo Electron Limited | Method for forming a ruthenium metal cap layer |
JP2010141143A (ja) * | 2008-12-11 | 2010-06-24 | Panasonic Corp | 半導体装置及びその製造方法 |
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Publication number | Publication date |
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US8518793B2 (en) | 2013-08-27 |
US20130102121A1 (en) | 2013-04-25 |
EP2584588A1 (en) | 2013-04-24 |
EP2584588B1 (en) | 2017-10-04 |
JP2013089964A (ja) | 2013-05-13 |
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