KR20150067200A - 스퍼터링 타겟, 산화물 반도체 박막 및 그들의 제조 방법 - Google Patents
스퍼터링 타겟, 산화물 반도체 박막 및 그들의 제조 방법 Download PDFInfo
- Publication number
- KR20150067200A KR20150067200A KR1020157009425A KR20157009425A KR20150067200A KR 20150067200 A KR20150067200 A KR 20150067200A KR 1020157009425 A KR1020157009425 A KR 1020157009425A KR 20157009425 A KR20157009425 A KR 20157009425A KR 20150067200 A KR20150067200 A KR 20150067200A
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- South Korea
- Prior art keywords
- sputtering
- thin film
- target
- sputtering target
- oxide semiconductor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Images
Classifications
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- 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
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3411—Constructional aspects of the reactor
- H01J37/3414—Targets
- H01J37/3426—Material
- H01J37/3429—Plural materials
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3407—Cathode assembly for sputtering apparatus, e.g. Target
- C23C14/3414—Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/453—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/086—Oxides of zinc, germanium, cadmium, indium, tin, thallium or bismuth
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3464—Sputtering using more than one target
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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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
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Abstract
Description
도 2는 실시예 1에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
도 3은 실시예 2에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
도 4는 실시예 3에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
도 5는 실시예 18에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
도 6은 실시예 19에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
도 7은 실시예 20에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
도 8은 실시예 21에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
도 9는 실시예 22에서 얻어진 소결체의 X선 회절 차트를 나타내는 도면이다.
Claims (19)
- 인듐 원소(In), 주석 원소(Sn), 아연 원소(Zn) 및 알루미늄 원소(Al)를 함유하는 산화물로 이루어지고, In2O3(ZnO)n(n은 2∼20임)으로 표시되는 호모로거스 구조 화합물 및 Zn2SnO4로 표시되는 스피넬 구조 화합물을 포함하는 스퍼터링 타겟.
- 제 1 항에 있어서,
상기 In2O3(ZnO)n으로 표시되는 호모로거스 구조 화합물에 Al이 고용되어 있는 스퍼터링 타겟. - 제 1 항 또는 제 2 항에 있어서,
상기 In2O3(ZnO)n으로 표시되는 호모로거스 구조 화합물이, In2Zn7O10으로 표시되는 호모로거스 구조 화합물, In2Zn5O8로 표시되는 호모로거스 구조 화합물, In2Zn4O7로 표시되는 호모로거스 구조 화합물, In2Zn3O6으로 표시되는 호모로거스 구조 화합물 및 In2Zn2O5로 표시되는 호모로거스 구조 화합물로부터 선택되는 1 이상인 스퍼터링 타겟. - 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,
In2O3으로 표시되는 빅스바이트 구조 화합물을 포함하지 않는 스퍼터링 타겟. - 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
하기 식 (1)∼(4)의 원자비를 만족하는 스퍼터링 타겟.
0.08 ≤ In/(In+Sn+Zn+Al) ≤ 0.50 (1)
0.01 ≤ Sn/(In+Sn+Zn+Al) ≤ 0.30 (2)
0.30 ≤ Zn/(In+Sn+Zn+Al) ≤ 0.90 (3)
0.01 ≤ Al/(In+Sn+Zn+Al) ≤ 0.30 (4)
(식 중, In, Sn, Zn 및 Al은, 각각 스퍼터링 타겟 중의 인듐 원소, 주석 원소, 아연 원소 및 알루미늄 원소의 원자비를 나타낸다.) - 제 1 항 내지 제 5 항 중 어느 한 항에 있어서,
상대 밀도가 98% 이상인 스퍼터링 타겟. - 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,
벌크 비저항이 5mΩcm 이하인 스퍼터링 타겟. - 1 이상의 화합물을 혼합하여, 적어도 인듐 원소(In), 아연 원소(Zn), 주석 원소(Sn) 및 알루미늄 원소(Al)를 포함하는 혼합물을 조제하는 혼합 공정,
조제한 혼합물을 성형하여 성형체를 얻는 성형 공정, 및
상기 성형체를 소결하는 소결 공정을 포함하고,
상기 소결 공정에 있어서, 인듐 원소, 아연 원소, 주석 원소 및 알루미늄 원소를 포함하는 산화물의 성형체를, 700℃부터 1400℃까지의 평균 승온 속도를 0.1∼0.9℃/분으로 하고, 1200∼1650℃를 5∼50시간 유지하여 소결하는 스퍼터링 타겟의 제조 방법. - 제 8 항에 있어서,
400℃ 이상 700℃ 미만에서의 제 1 평균 승온 속도를 0.2∼1.5℃/분으로 하고, 700℃ 이상 1100℃ 미만에서의 제 2 평균 승온 속도를 0.15∼0.8℃/분으로 하고, 1100℃ 이상 1400℃ 이하에서의 제 3 평균 승온 속도를 0.1∼0.5℃/분으로 하되,
상기 제 1∼제 3 평균 승온 속도의 관계가, 제 1 평균 승온 속도 > 제 2 평균 승온 속도 > 제 3 평균 승온 속도를 만족하는 스퍼터링 타겟의 제조 방법. - 제 1 항 내지 제 7 항 중 어느 한 항에 기재된 스퍼터링 타겟을 이용하여, 스퍼터링법에 의해 성막하여 이루어지는 산화물 반도체 박막.
- 수증기, 산소 가스 및 아산화질소 가스로부터 선택되는 1 이상과 희가스를 함유하는 혼합 기체의 분위기 하에서, 제 1 항 내지 제 7 항 중 어느 한 항에 기재된 스퍼터링 타겟을 스퍼터링법으로 성막하는 산화물 반도체 박막의 제조 방법.
- 제 11 항에 있어서,
상기 혼합 기체가, 적어도 희가스 및 수증기를 포함하는 혼합 기체인 산화물 반도체막의 제조 방법. - 제 12 항에 있어서,
상기 혼합 기체에 포함되는 수증기의 비율이 분압비로 0.1%∼25%인 산화물 반도체 박막의 제조 방법. - 제 11 항 내지 제 13 항 중 어느 한 항에 있어서,
진공 챔버 내에 소정의 간격을 두고 병설된 3장 이상의 상기 스퍼터링 타겟에 대향하는 위치에, 기판을 순차적으로 반송하고, 상기 각 타겟에 대하여 교류 전원으로부터 음전위 및 양전위를 교대로 인가하고, 적어도 하나의 교류 전원으로부터의 출력을, 이 교류 전원에 분기되어 접속한 2장 이상의 타겟 사이에서, 전위를 인가하는 타겟의 전환을 행하면서, 타겟 상에 플라즈마를 발생시켜 기판 표면에 성막하는 산화물 반도체 박막의 제조 방법. - 제 14 항에 있어서,
상기 교류 전원의 교류 파워 밀도를 3W/cm2 이상 20W/cm2 이하로 하는 산화물 반도체 박막의 제조 방법. - 제 14 항 또는 제 15 항에 있어서,
상기 교류 전원의 주파수가 10kHz∼1MHz인 산화물 반도체 박막의 제조 방법. - 제 11 항 내지 제 16 항 중 어느 한 항에 기재된 산화물 반도체 박막의 제조 방법에 의해 성막된 산화물 반도체 박막을 채널층으로서 갖는 박막 트랜지스터.
- 제 17 항에 있어서,
전계 효과 이동도가 15cm2/Vs 이상인 박막 트랜지스터. - 제 17 항 또는 제 18 항에 기재된 박막 트랜지스터를 구비하는 표시 장치.
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- 2013-10-16 WO PCT/JP2013/006146 patent/WO2014061271A1/ja active Application Filing
- 2013-10-16 CN CN201810112981.7A patent/CN108085644B/zh active Active
- 2013-10-16 US US14/436,824 patent/US20150332902A1/en not_active Abandoned
- 2013-10-16 KR KR1020207019867A patent/KR20200087274A/ko not_active Ceased
- 2013-10-16 CN CN201380045405.0A patent/CN104603323B/zh active Active
- 2013-10-16 KR KR1020157009425A patent/KR20150067200A/ko not_active Ceased
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JP6284710B2 (ja) | 2018-02-28 |
CN108085644B (zh) | 2021-02-05 |
WO2014061271A1 (ja) | 2014-04-24 |
CN104603323B (zh) | 2018-02-16 |
KR20200087274A (ko) | 2020-07-20 |
TWI636959B (zh) | 2018-10-01 |
JP2014098204A (ja) | 2014-05-29 |
CN108085644A (zh) | 2018-05-29 |
CN104603323A (zh) | 2015-05-06 |
US20150332902A1 (en) | 2015-11-19 |
TW201431792A (zh) | 2014-08-16 |
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