JP5059620B2 - シリコン電極アセンブリのエッチング速度及びエッチング均一性を回復する方法 - Google Patents
シリコン電極アセンブリのエッチング速度及びエッチング均一性を回復する方法 Download PDFInfo
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- JP5059620B2 JP5059620B2 JP2007548306A JP2007548306A JP5059620B2 JP 5059620 B2 JP5059620 B2 JP 5059620B2 JP 2007548306 A JP2007548306 A JP 2007548306A JP 2007548306 A JP2007548306 A JP 2007548306A JP 5059620 B2 JP5059620 B2 JP 5059620B2
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 105
- 239000010703 silicon Substances 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000005498 polishing Methods 0.000 claims abstract description 44
- 238000005530 etching Methods 0.000 claims abstract description 26
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 229910021418 black silicon Inorganic materials 0.000 claims abstract description 15
- 238000001020 plasma etching Methods 0.000 claims abstract description 14
- 239000003989 dielectric material Substances 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000008367 deionised water Substances 0.000 claims description 21
- 229910021641 deionized water Inorganic materials 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
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- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 2
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- 238000005507 spraying Methods 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims 1
- 238000011109 contamination Methods 0.000 abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 36
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- 235000012431 wafers Nutrition 0.000 description 15
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 14
- 229910017604 nitric acid Inorganic materials 0.000 description 14
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
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- 150000002500 ions Chemical class 0.000 description 3
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- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
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- 230000003628 erosive effect Effects 0.000 description 2
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- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 229910052759 nickel Inorganic materials 0.000 description 2
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- 231100000719 pollutant Toxicity 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
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- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 240000001829 Catharanthus roseus Species 0.000 description 1
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- 150000007513 acids Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000861 blow drying Methods 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
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- AAOVKJBEBIDNHE-UHFFFAOYSA-N diazepam Chemical group N=1CC(=O)N(C)C2=CC=C(Cl)C=C2C=1C1=CC=CC=C1 AAOVKJBEBIDNHE-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
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- 239000005368 silicate glass Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
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Classifications
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32532—Electrodes
- H01J37/32605—Removable or replaceable electrodes or electrode systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Plasma & Fusion (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Drying Of Semiconductors (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Weting (AREA)
- Chemical Vapour Deposition (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
3Si+12HF+4HNO3→3SiF4+4NO+8H2O
[H+][F−]=k1[HF] k1=1.3×10−3モル/リットル
[HF][F−]=k2[HF2] k2=0.104モル/リットル
フッ化水素酸の溶解速度は、1.3×10−3モル/リットルという低い反応定数k1のために低い。フッ化水素酸を含む溶液で処理した後で、シリコン電極のシリコン表面はSi−H(1水素)、Si−H2(2水素)及びSi−H3(3水素)で覆われていることが、赤外分光分析によって明らかになることがある。
再生された電極アセンブリの以下の実施例は、説明にために提供されるもので、限定されるものでない。図8〜11及び対応する実施例で使用されるときに、「サイクル」は、電極アセンブリを使用して半導体ウェハをエッチングすることを意味し、また「研磨」は、上で説明されたように、電極アセンブリのシリコン表面を研磨することと電極アセンブリのシリコン表面を酸溶液で洗浄することとの双方の組合せを意味する。
Claims (19)
- プラズマに曝されたシリコン表面を含む使用された電極アセンブリを洗浄する方法であって、
前記方法は、前記シリコン表面を研磨する手順を含み、前記研磨で前記シリコン表面から黒色シリコンが除去され、
前記方法は、研磨後に前記電極アセンブリのガス出口及び結合部内から粒子を除去する手順を含み、前記粒子が、窒素又は脱イオン水の銃を使用して除去されることを特徴とする方法。 - 研磨の前に前記シリコン表面にCO2雪吹付け(snow blasting)をする手順をさらに含むことを特徴とする請求項1に記載の方法。
- 前記シリコン表面が、0.203μm(8μ−インチ)以下の表面粗さまで研磨されることを特徴とする請求項1に記載の方法。
- 前記シリコン表面が、不断の流水の下で研磨されることを特徴とする請求項1に記載の方法。
- 前記シリコン表面が、220、280、360、800及び1350グリットのダイアモンド研磨ディスクの一つ以上を使用して研磨されることを特徴とする請求項1に記載の方法。
- 前記電極アセンブリが、研磨中に40〜160rpmの速度で回転されることを特徴とする請求項1に記載の方法。
- 前記電極アセンブリを脱イオン水中に浸漬する手順をさらに含むことを特徴とする請求項1に記載の方法。
- 前記電極アセンブリを脱イオン水中で超音波洗浄する手順をさらに含むことを特徴とする請求項7に記載の方法。
- 前記シリコン表面は、シリコン板のプラズマに曝された表面であり、前記シリコン板の反対の表面が、黒鉛裏当て部材にエラストマ結合されていることを特徴とする請求項1に記載の方法。
- 前記黒鉛裏当て部材が、取付け穴を含むことを特徴とする請求項9に記載の方法。
- 電極アセンブリが、外部電極部材で取り囲まれた内部電極を含むことを特徴とする請求項1に記載の方法。
- 前記外部電極部材が、環状構成に配列されたシリコンセグメントで構成されていることを特徴とする請求項11に記載の方法。
- 前記シリコン表面が、単結晶シリコン板のプラズマに曝された表面であることを特徴とする請求項1に記載の方法。
- 前記シリコン表面を酸溶液で洗浄する手順をさらに含むことを特徴とする請求項1に記載の方法。
- 前記研磨後に前記電極アセンブリを検査して前記電極アセンブリが製品仕様に一致することを保証する手順をさらに含むことを特徴とする請求項1に記載の方法。
- 前記シリコン表面の粗さが検査されることを特徴とする請求項15に記載の方法。
- 前記研磨後に、前記電極アセンブリの性能をプラズマエッチングチャンバの中で試験する手順をさらに含むことを特徴とする請求項1に記載の方法。
- 前記電極アセンブリのエッチング速度及びエッチング均一性が試験されることを特徴とする請求項17に記載の方法。
- プラズマエッチングチャンバで誘電体材料をエッチングする方法であって、
請求項1に記載の方法によって、表面に黒色シリコンを有するプラズマに曝されたシリコン表面を含む使用された電極アセンブリを洗浄する手順と、
前記洗浄された電極アセンブリを前記プラズマエッチングチャンバに配置する手順と、
前記プラズマエッチングチャンバで前記誘電体材料をエッチングする手順と、を含む方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/019,729 | 2004-12-23 | ||
US11/019,729 US7442114B2 (en) | 2004-12-23 | 2004-12-23 | Methods for silicon electrode assembly etch rate and etch uniformity recovery |
PCT/US2005/045361 WO2006071544A2 (en) | 2004-12-23 | 2005-12-15 | Methods for silicon electrode assembly etch rate and etch uniformity recovery |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008525205A JP2008525205A (ja) | 2008-07-17 |
JP2008525205A5 JP2008525205A5 (ja) | 2009-02-05 |
JP5059620B2 true JP5059620B2 (ja) | 2012-10-24 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007548306A Active JP5059620B2 (ja) | 2004-12-23 | 2005-12-15 | シリコン電極アセンブリのエッチング速度及びエッチング均一性を回復する方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7442114B2 (ja) |
EP (1) | EP1848597B1 (ja) |
JP (1) | JP5059620B2 (ja) |
KR (1) | KR101264448B1 (ja) |
CN (1) | CN101137461A (ja) |
AT (1) | ATE524824T1 (ja) |
TW (1) | TWI385723B (ja) |
WO (1) | WO2006071544A2 (ja) |
Families Citing this family (24)
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US7854820B2 (en) * | 2006-10-16 | 2010-12-21 | Lam Research Corporation | Upper electrode backing member with particle reducing features |
US8702866B2 (en) | 2006-12-18 | 2014-04-22 | Lam Research Corporation | Showerhead electrode assembly with gas flow modification for extended electrode life |
US8171877B2 (en) * | 2007-03-14 | 2012-05-08 | Lam Research Corporation | Backside mounted electrode carriers and assemblies incorporating the same |
US7767028B2 (en) * | 2007-03-14 | 2010-08-03 | Lam Research Corporation | Cleaning hardware kit for composite showerhead electrode assemblies for plasma processing apparatuses |
US8221552B2 (en) * | 2007-03-30 | 2012-07-17 | Lam Research Corporation | Cleaning of bonded silicon electrodes |
US8292698B1 (en) | 2007-03-30 | 2012-10-23 | Lam Research Corporation | On-line chamber cleaning using dry ice blasting |
US7578889B2 (en) * | 2007-03-30 | 2009-08-25 | Lam Research Corporation | Methodology for cleaning of surface metal contamination from electrode assemblies |
US7736441B2 (en) * | 2007-10-09 | 2010-06-15 | Lam Research Corporation | Cleaning fixtures and methods of cleaning electrode assembly plenums |
US8075701B2 (en) | 2008-06-30 | 2011-12-13 | Lam Research Corporation | Processes for reconditioning multi-component electrodes |
US8276604B2 (en) * | 2008-06-30 | 2012-10-02 | Lam Research Corporation | Peripherally engaging electrode carriers and assemblies incorporating the same |
US20100140222A1 (en) * | 2008-12-10 | 2010-06-10 | Sun Jennifer Y | Filled polymer composition for etch chamber component |
TWI403368B (zh) * | 2008-12-10 | 2013-08-01 | Lam Res Corp | 用於清洗矽電極沉浸式氧化及蝕刻方法 |
JP5896915B2 (ja) * | 2009-12-18 | 2016-03-30 | ラム リサーチ コーポレーションLam Research Corporation | プラズマチャンバで使用される上方電極から表面金属汚染を洗浄するための方法 |
CN102420132B (zh) * | 2011-05-26 | 2013-12-04 | 上海华力微电子有限公司 | 一种去除NiPt金属硅化物的方法 |
US9293305B2 (en) | 2011-10-31 | 2016-03-22 | Lam Research Corporation | Mixed acid cleaning assemblies |
CN102969256B (zh) * | 2012-11-12 | 2015-06-17 | 上海华力微电子有限公司 | 蚀刻机台上电极黑硅的侦测方法 |
US8893702B2 (en) * | 2013-02-20 | 2014-11-25 | Lam Research Corporation | Ductile mode machining methods for hard and brittle components of plasma processing apparatuses |
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JP5944883B2 (ja) * | 2013-12-18 | 2016-07-05 | 東京エレクトロン株式会社 | 粒子逆流防止部材及び基板処理装置 |
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US20060138081A1 (en) | 2006-06-29 |
JP2008525205A (ja) | 2008-07-17 |
ATE524824T1 (de) | 2011-09-15 |
WO2006071544A3 (en) | 2007-08-16 |
TWI385723B (zh) | 2013-02-11 |
KR20070089246A (ko) | 2007-08-30 |
EP1848597A2 (en) | 2007-10-31 |
US7442114B2 (en) | 2008-10-28 |
CN101137461A (zh) | 2008-03-05 |
KR101264448B1 (ko) | 2013-05-14 |
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