WO2012018211A3 - 사이클릭 박막 증착 방법 - Google Patents

사이클릭 박막 증착 방법 Download PDF

Info

Publication number
WO2012018211A3
WO2012018211A3 PCT/KR2011/005650 KR2011005650W WO2012018211A3 WO 2012018211 A3 WO2012018211 A3 WO 2012018211A3 KR 2011005650 W KR2011005650 W KR 2011005650W WO 2012018211 A3 WO2012018211 A3 WO 2012018211A3
Authority
WO
WIPO (PCT)
Prior art keywords
silicon
chamber
depositing
thin film
reaction
Prior art date
Application number
PCT/KR2011/005650
Other languages
English (en)
French (fr)
Other versions
WO2012018211A2 (ko
Inventor
김해원
우상호
Original Assignee
주식회사 유진테크
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 유진테크 filed Critical 주식회사 유진테크
Priority to US13/808,111 priority Critical patent/US20130101752A1/en
Priority to CN201180036295.2A priority patent/CN103026471B/zh
Priority to JP2013521723A priority patent/JP2013542581A/ja
Publication of WO2012018211A2 publication Critical patent/WO2012018211A2/ko
Publication of WO2012018211A3 publication Critical patent/WO2012018211A3/ko

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/14Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
    • B05D3/141Plasma treatment
    • B05D3/145After-treatment
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical 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
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/34Nitrides
    • C23C16/345Silicon nitride
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical 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
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40Oxides
    • C23C16/401Oxides containing silicon
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44Chemical 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 method of coating
    • C23C16/455Chemical 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 method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
    • C23C16/45523Pulsed gas flow or change of composition over time
    • C23C16/45525Atomic layer deposition [ALD]
    • C23C16/45527Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations
    • C23C16/45536Use of plasma, radiation or electromagnetic fields
    • C23C16/4554Plasma being used non-continuously in between ALD reactions
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02107Forming insulating materials on a substrate
    • H01L21/02109Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
    • H01L21/02112Forming 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
    • H01L21/02123Forming 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 silicon
    • H01L21/02164Forming 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 silicon the material being a silicon oxide, e.g. SiO2
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02107Forming insulating materials on a substrate
    • H01L21/02109Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
    • H01L21/02112Forming 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
    • H01L21/02123Forming 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 silicon
    • H01L21/0217Forming 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 silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02107Forming insulating materials on a substrate
    • H01L21/02109Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
    • H01L21/02205Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition
    • H01L21/02208Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
    • H01L21/02211Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound being a silane, e.g. disilane, methylsilane or chlorosilane
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02107Forming insulating materials on a substrate
    • H01L21/02225Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
    • H01L21/0226Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
    • H01L21/02263Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
    • H01L21/02271Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
    • H01L21/02274Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02107Forming insulating materials on a substrate
    • H01L21/02225Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
    • H01L21/0226Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
    • H01L21/02263Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
    • H01L21/02271Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
    • H01L21/0228Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02365Forming inorganic semiconducting materials on a substrate
    • H01L21/02612Formation types
    • H01L21/02617Deposition types
    • H01L21/0262Reduction or decomposition of gaseous compounds, e.g. CVD
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02365Forming inorganic semiconducting materials on a substrate
    • H01L21/02518Deposited layers
    • H01L21/02521Materials
    • H01L21/02524Group 14 semiconducting materials
    • H01L21/02532Silicon, silicon germanium, germanium

Abstract

우수한 막질과 스텝 커버리지를 제공할 수 있는 사이클릭 박막 증착 방법을 제공한다. 본 발명의 일 실시예에 따른 사이클릭 박막 증착 방법은 기판이 로딩된 챔버의 내부에 실리콘 전구체를 주입하여 기판 상에 실리콘을 증착하는 증착 단계, 챔버의 내부에서 미반응 실리콘 전구체 및 반응 부산물을 제거하는 제1 퍼지 단계, 챔버의 내부에 제1 반응 가스를 공급하여 증착된 실리콘을 실리콘이 포함되는 절연막으로 형성하는 반응 단계 및 챔버의 내부에서 미반응 반응 가스와 반응 부산물을 제거하는 제2 퍼지 단계를 반복하여 수행하는 절연막 증착 단계 및 챔버의 내부에 플라즈마 분위기를 공급하여 형성된 실리콘이 포함되는 절연막을 치밀하게 만드는 치밀화 단계를 포함한다.
PCT/KR2011/005650 2010-08-02 2011-08-01 사이클릭 박막 증착 방법 WO2012018211A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/808,111 US20130101752A1 (en) 2010-08-02 2011-08-01 Method for depositing cyclic thin film
CN201180036295.2A CN103026471B (zh) 2010-08-02 2011-08-01 环状薄膜的沉积方法
JP2013521723A JP2013542581A (ja) 2010-08-02 2011-08-01 サイクリック薄膜の蒸着方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100074608A KR101147727B1 (ko) 2010-08-02 2010-08-02 사이클릭 박막 증착 방법
KR10-2010-0074608 2010-08-02

Publications (2)

Publication Number Publication Date
WO2012018211A2 WO2012018211A2 (ko) 2012-02-09
WO2012018211A3 true WO2012018211A3 (ko) 2012-05-03

Family

ID=45559917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/005650 WO2012018211A2 (ko) 2010-08-02 2011-08-01 사이클릭 박막 증착 방법

Country Status (6)

Country Link
US (1) US20130101752A1 (ko)
JP (1) JP2013542581A (ko)
KR (1) KR101147727B1 (ko)
CN (1) CN103026471B (ko)
TW (1) TWI474399B (ko)
WO (1) WO2012018211A2 (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101494274B1 (ko) * 2013-11-08 2015-02-17 주식회사 유진테크 사이클릭 박막 증착 방법 및 반도체 제조 방법, 그리고 비휘발성 메모리 셀
KR101551199B1 (ko) * 2013-12-27 2015-09-10 주식회사 유진테크 사이클릭 박막 증착 방법 및 반도체 제조 방법, 그리고 반도체 소자
KR101576637B1 (ko) * 2014-07-15 2015-12-10 주식회사 유진테크 고종횡비를 가지는 오목부 상에 절연막을 증착하는 방법
TW201606116A (zh) * 2014-08-08 2016-02-16 尤金科技有限公司 具低蝕刻率之氧化薄膜之沉積方法及半導體裝置
KR101576639B1 (ko) * 2014-09-18 2015-12-10 주식회사 유진테크 절연막 증착 방법
KR102362534B1 (ko) * 2014-12-08 2022-02-15 주성엔지니어링(주) 기판 처리방법
JP2017139297A (ja) * 2016-02-02 2017-08-10 東京エレクトロン株式会社 成膜方法及び成膜装置
KR102125474B1 (ko) * 2016-12-05 2020-06-24 주식회사 원익아이피에스 박막 증착 방법
WO2019245702A1 (en) 2018-06-19 2019-12-26 Applied Materials, Inc. Pulsed plasma deposition etch step coverage improvement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020081902A (ko) * 2001-04-20 2002-10-30 아남반도체 주식회사 산소 라디칼을 이용한 실리콘 산화막의 제조 방법
KR20070055898A (ko) * 2005-11-28 2007-05-31 주식회사 에이이티 실리콘 박막의 원자층 증착 방법
KR20080071515A (ko) * 2007-01-30 2008-08-04 가부시키가이샤 한도오따이 에네루기 켄큐쇼 표시 장치
KR20090016403A (ko) * 2007-08-10 2009-02-13 에이에스엠지니텍코리아 주식회사 실리콘 산화막 증착 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6140246A (en) * 1997-12-18 2000-10-31 Advanced Micro Devices, Inc. In-situ P doped amorphous silicon by NH3 to form oxidation resistant and finer grain floating gates
US7297641B2 (en) * 2002-07-19 2007-11-20 Asm America, Inc. Method to form ultra high quality silicon-containing compound layers
JP4257576B2 (ja) * 2003-03-25 2009-04-22 ローム株式会社 成膜装置
DE10319540A1 (de) * 2003-04-30 2004-11-25 Infineon Technologies Ag Verfahren zur ALD-Beschichtung von Substraten sowie eine zur Durchführung des Verfahrens geeignete Vorrichtung
US7192849B2 (en) * 2003-05-07 2007-03-20 Sensor Electronic Technology, Inc. Methods of growing nitride-based film using varying pulses
US20070065578A1 (en) * 2005-09-21 2007-03-22 Applied Materials, Inc. Treatment processes for a batch ALD reactor
JP4550778B2 (ja) * 2006-07-07 2010-09-22 株式会社東芝 磁気抵抗効果素子の製造方法
US20080014759A1 (en) * 2006-07-12 2008-01-17 Applied Materials, Inc. Method for fabricating a gate dielectric layer utilized in a gate structure
US7723771B2 (en) * 2007-03-30 2010-05-25 Qimonda Ag Zirconium oxide based capacitor and process to manufacture the same
JP2009206312A (ja) * 2008-02-28 2009-09-10 Mitsui Eng & Shipbuild Co Ltd 成膜方法および成膜装置
JP5190307B2 (ja) * 2008-06-29 2013-04-24 東京エレクトロン株式会社 成膜方法、成膜装置及び記憶媒体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020081902A (ko) * 2001-04-20 2002-10-30 아남반도체 주식회사 산소 라디칼을 이용한 실리콘 산화막의 제조 방법
KR20070055898A (ko) * 2005-11-28 2007-05-31 주식회사 에이이티 실리콘 박막의 원자층 증착 방법
KR20080071515A (ko) * 2007-01-30 2008-08-04 가부시키가이샤 한도오따이 에네루기 켄큐쇼 표시 장치
KR20090016403A (ko) * 2007-08-10 2009-02-13 에이에스엠지니텍코리아 주식회사 실리콘 산화막 증착 방법

Also Published As

Publication number Publication date
US20130101752A1 (en) 2013-04-25
TW201220397A (en) 2012-05-16
CN103026471B (zh) 2016-01-13
KR101147727B1 (ko) 2012-05-25
WO2012018211A2 (ko) 2012-02-09
KR20120012582A (ko) 2012-02-10
JP2013542581A (ja) 2013-11-21
TWI474399B (zh) 2015-02-21
CN103026471A (zh) 2013-04-03

Similar Documents

Publication Publication Date Title
WO2012018210A3 (ko) 사이클릭 박막 증착 방법
WO2012018211A3 (ko) 사이클릭 박막 증착 방법
WO2011126748A3 (en) Depositing conformal boron nitride films
WO2010062582A3 (en) Vapor deposition method for ternary compounds
WO2012166618A3 (en) Capping layer for reduced outgassing
WO2010039363A3 (en) Methods for forming silicon nitride based film or silicon carbon based film
WO2010123877A3 (en) Cvd apparatus for improved film thickness non-uniformity and particle performance
TW200617200A (en) Multilayer coatings by plasma enhanced chemical vapor deposition
WO2012040317A3 (en) Plasma-activated deposition of conformal films
WO2010071364A3 (ko) 금속 박막 또는 금속 산화물 박막 증착용 유기금속 전구체 화합물 및 이를 이용한 박막 증착 방법
TW201614727A (en) Method of depositing insulation layer on deep trench having high aspect ratio
WO2008048862A3 (en) Formation of high quality dielectric films of silicon dioxide for sti: usage of different siloxane-based precursors for harp ii - remote plasma enhanced deposition processes
EP1860690A3 (en) Process for producing silicon oxide films from organoaminosilane precursors
WO2017023693A8 (en) Compositions and methods for depositing silicon nitride films
WO2012167060A3 (en) Compositions and processes for depositing carbon-doped silicon-containing films
WO2013012536A3 (en) Surface treatment and deposition for reduced outgassing
WO2012036808A3 (en) Smooth silicon-containing films
WO2011109148A3 (en) Conformal layers by radical-component cvd
WO2010114386A8 (en) Thin films containing molybdenum oxide
WO2012102809A3 (en) Polysilicon films by hdp-cvd
WO2010095901A3 (en) Method for forming thin film using radicals generated by plasma
GB201306001D0 (en) Atomic layer deposition
SG152183A1 (en) High quality silicon oxide films by remote plasma cvd from disilane precursors
TW200940738A (en) Method for forming a titanium-containing layer on a substrate using an ALD process
WO2012170150A3 (en) Selective deposition of polymer films on bare silicon instead of oxide surface

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180036295.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11814811

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 13808111

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2013521723

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11814811

Country of ref document: EP

Kind code of ref document: A2