KR100868268B1 - 질화물반도체 발광 소자 및 질화물반도체 레이저 소자의제조 방법 - Google Patents
질화물반도체 발광 소자 및 질화물반도체 레이저 소자의제조 방법 Download PDFInfo
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- KR100868268B1 KR100868268B1 KR1020080007919A KR20080007919A KR100868268B1 KR 100868268 B1 KR100868268 B1 KR 100868268B1 KR 1020080007919 A KR1020080007919 A KR 1020080007919A KR 20080007919 A KR20080007919 A KR 20080007919A KR 100868268 B1 KR100868268 B1 KR 100868268B1
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- Prior art keywords
- nitride semiconductor
- coating film
- oxynitride
- aluminum
- semiconductor laser
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- 150000004767 nitrides Chemical class 0.000 title claims abstract description 195
- 239000004065 semiconductor Substances 0.000 title claims abstract description 186
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 146
- 238000000576 coating method Methods 0.000 claims abstract description 146
- 229910052782 aluminium Inorganic materials 0.000 claims description 107
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 107
- 239000001301 oxygen Substances 0.000 claims description 85
- 229910052760 oxygen Inorganic materials 0.000 claims description 85
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 76
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 45
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 238000004544 sputter deposition Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 238000003776 cleavage reaction Methods 0.000 abstract description 3
- 230000007017 scission Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 description 44
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 35
- 229910052710 silicon Inorganic materials 0.000 description 35
- 239000010703 silicon Substances 0.000 description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 26
- 229910052814 silicon oxide Inorganic materials 0.000 description 26
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 24
- 239000000203 mixture Substances 0.000 description 22
- 229910052581 Si3N4 Inorganic materials 0.000 description 21
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 21
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 20
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 19
- 238000000151 deposition Methods 0.000 description 17
- 230000008021 deposition Effects 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 14
- 238000003475 lamination Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- 229910052786 argon Inorganic materials 0.000 description 10
- 229920006395 saturated elastomer Polymers 0.000 description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 229910001873 dinitrogen Inorganic materials 0.000 description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- -1 Oxygen nitrides Chemical class 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000006798 recombination Effects 0.000 description 6
- 238000005215 recombination Methods 0.000 description 6
- 230000020169 heat generation Effects 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 3
- 238000005253 cladding Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 3
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 3
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 238000005546 reactive sputtering Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229910000449 hafnium oxide Inorganic materials 0.000 description 2
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910000484 niobium oxide Inorganic materials 0.000 description 2
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910001936 tantalum oxide Inorganic materials 0.000 description 2
- 238000004841 transmission electron microscopy energy-dispersive X-ray spectroscopy Methods 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
- H01S5/343—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/34333—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser with a well layer based on Ga(In)N or Ga(In)P, e.g. blue laser
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/028—Coatings ; Treatment of the laser facets, e.g. etching, passivation layers or reflecting layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/44—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/2036—Broad area lasers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
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Abstract
Description
질화물반도체에 접하는 제1층 | 제1층 위에 형성되는 제2층 | 제2층 위에 형성되는 제2층 | |||
재질 | 두께 | 재질 | 두께 | 재질 | 두께 |
알루미늄의 산질화물 (산소함유량:2%) | 20nm | 산화알루미늄(Al2O3) | 140nm | _ | - |
알루미늄의 산질화물 (산소함유량:5%) | 10nm | 알루미늄의 산질화물 (산소함유량:10%) | 5nm | 산화알루미늄(Al2O3) | 140nm |
알루미늄의 산질화물 (산소함유량:11%) | 50nm | 산화실리콘(SiO2) | 120nm | - | - |
알루미늄의 산질화물 (산소함유량:15%) | 6nm | 산화티타늄(TiO2) | 50nm | - | - |
알루미늄의 산질화물 (산소함유량:5%) | 10nm | 산화탄탈륨(Ta2O5) | 100nm | - | - |
알루미늄의 산질화물 (산소함유량:5%) | 10nm | 산화이트륨(Y2O5) | 230nm | - | - |
알루미늄의 산질화물 (산소함유량:5%) | 80nm | 산화지르코늄(ZrO2) | 100nm | - | - |
알루미늄의 산질화물 (산소함유량:2%) | 20nm | 질화실리콘(Si3N4) | 20nm | 산화실리콘(SiO2) | 140nm |
알루미늄의 산질화물 (산소함유량:4%) | 20nm | 질화실리콘(Si3N4) | 20nm | 산화알루미늄(Al2O3) | 120nm |
알루미늄의 산질화물 (산소함유량:3%) | 25nm | 질화실리콘(Si3N4) | 150nm | - | - |
알루미늄의 산질화물 (산소함유량:4%) | 20nm | 질화실리콘(Si3N4) | 150nm | 산화알루미늄(Al2O3) | 120nm |
알루미늄의 산질화물 (산소함유량:7%) | 20nm | 실리콘의 산질화물 (산소함유량:5%) | 150nm | - | - |
알루미늄의 산질화물 (산소함유량:7%) | 20nm | 질화실리콘(Si3N4) | 20nm | 실리콘의 산질화물 (산소함유량:5%) | 150nm |
또한, 상기 코팅막(114), 알루미늄의 산질화물막(116), 산화 알루미늄막(117) 및 고반사막(118)은, n형 GaN기판상에 n형 AlGaInN버퍼층 등의 상기 반도체층을 순차적으로 적층하고, 리지 스트라이프부를 형성한 후에, 절연막, p전극 및 n전극을 각각 형성한 웨이퍼를 벽개함으로써 벽개면인 공진기 단면(113) 및 공진기 단면(115)이 각각 노출된 시료를 제작하고, 그 시료의 공진기 단면(113) 및 공진기 단면(115) 상에 각각 형성된다.
상기 코팅막(114)을 형성하기 전에 성막 장치 내에 있어서 공진기 단면(113)을 예를 들면 100℃ 이상 500℃ 이하의 온도로 가열함으로써, 공진기 단면(113)에 부착되어 있는 산화막이나 불순물 등을 제거하여 클리닝하는 것이 바람직하나, 본 발명에 있어서는 특별히 행하지 않아도 좋다. 또한, 공진기 단면(113)에 예를 들면 아르곤 또는 질소의 플라즈마를 조사함으로써 공진기 단면(113)의 클리닝을 행해도 되지만, 본 발명에 있어서는 특별히 행하지 않아도 좋다.
Claims (7)
- 광출사부에 코팅막이 형성되어 있는 질화물반도체 발광 소자에 있어서,상기 광출사부는 질화물반도체로 이루어지고, 상기 광출사부에 접하는 코팅막이 산질화물로 이루어지고,상기 산질화물이 알루미늄의 산질화물인 것을 특징으로 하는, 질화물반도체 발광 소자.
- 제1항에 있어서, 상기 산질화물 중의 산소의 함유량이 2원자% 이상 35원자% 이하인 것을 특징으로 하는, 질화물반도체 발광소자.
- 제1항에 있어서, 상기 질화물반도체 발광 소자는 질화물반도체 레이저 소자이고, 상기 광출사부는 공진기 단면인 것을 특징으로 하는, 질화물반도체 발광 소자.
- 제3항에 있어서, 상기 산질화물 중의 산소의 함유량이 2원자% 이상 35원자% 이하인 것을 특징으로 하는, 질화물반도체 발광 소자.
- 질화물반도체로 이루어지는 광출사부에 알루미늄의 산질화물로 이루어지는 코팅막을 형성하는 공정을 포함하고,상기 코팅막은, 타겟으로 알루미늄을 사용하여, 상기 타겟을 산소와 질소를 포함하는 가스에 의해 스퍼터링하여 형성하는 것을 특징으로 하는, 질화물반도체 발광 소자의 제조 방법.
- 삭제
- 삭제
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2005363590 | 2005-12-16 | ||
JPJP-P-2005-00363590 | 2005-12-16 | ||
JP2006320327A JP5191650B2 (ja) | 2005-12-16 | 2006-11-28 | 窒化物半導体発光素子および窒化物半導体発光素子の製造方法 |
JPJP-P-2006-00320327 | 2006-11-28 |
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US8735192B2 (en) | 2014-05-27 |
CN102005699A (zh) | 2011-04-06 |
KR20080103943A (ko) | 2008-11-28 |
KR20070064387A (ko) | 2007-06-20 |
KR100924500B1 (ko) | 2009-11-02 |
KR100924498B1 (ko) | 2009-11-03 |
KR100829137B1 (ko) | 2008-05-14 |
US20070138492A1 (en) | 2007-06-21 |
KR20080016908A (ko) | 2008-02-22 |
KR20080066640A (ko) | 2008-07-16 |
JP2007189201A (ja) | 2007-07-26 |
US20080291961A1 (en) | 2008-11-27 |
KR100898958B1 (ko) | 2009-05-25 |
CN102231477A (zh) | 2011-11-02 |
CN1983748A (zh) | 2007-06-20 |
JP5191650B2 (ja) | 2013-05-08 |
US8368095B2 (en) | 2013-02-05 |
KR20080103942A (ko) | 2008-11-28 |
US20090218593A1 (en) | 2009-09-03 |
CN1983748B (zh) | 2011-06-22 |
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