KR102233959B1 - 반도체 장치의 제작 방법 및 반도체 장치 - Google Patents
반도체 장치의 제작 방법 및 반도체 장치 Download PDFInfo
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- KR102233959B1 KR102233959B1 KR1020207012954A KR20207012954A KR102233959B1 KR 102233959 B1 KR102233959 B1 KR 102233959B1 KR 1020207012954 A KR1020207012954 A KR 1020207012954A KR 20207012954 A KR20207012954 A KR 20207012954A KR 102233959 B1 KR102233959 B1 KR 102233959B1
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- transistor
- layer
- semiconductor layer
- oxide semiconductor
- electrode
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 326
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- 229910052718 tin Inorganic materials 0.000 description 2
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- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 1
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- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
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- 150000002367 halogens Chemical class 0.000 description 1
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- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 150000004767 nitrides Chemical class 0.000 description 1
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- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D99/00—Subject matter not provided for in other groups of this subclass
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6704—Thin-film transistors [TFT] having supplementary regions or layers in the thin films or in the insulated bulk substrates for controlling properties of the device
- H10D30/6713—Thin-film transistors [TFT] having supplementary regions or layers in the thin films or in the insulated bulk substrates for controlling properties of the device characterised by the properties of the source or drain regions, e.g. compositions or sectional shapes
-
- H01L29/78618—
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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
-
- 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
- H01L21/34—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 not provided for in groups H01L21/18, H10D48/04 and H10D48/07, with or without impurities, e.g. doping materials
- H01L21/44—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/38 - H01L21/428
- H01L21/441—Deposition of conductive or insulating materials for electrodes
-
- H01L27/1225—
-
- H01L29/41733—
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- H01L29/7869—
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- H01L29/78696—
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/674—Thin-film transistors [TFT] characterised by the active materials
- H10D30/6755—Oxide semiconductors, e.g. zinc oxide, copper aluminium oxide or cadmium stannate
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6757—Thin-film transistors [TFT] characterised by the structure of the channel, e.g. transverse or longitudinal shape or doping profile
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/60—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Thin Film Transistor (AREA)
- Semiconductor Memories (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Non-Volatile Memory (AREA)
Abstract
반도체층을 형성하고, 반도체층 위에 제 1 도전층을 형성하고, 제 1 레지스트 마스크를 사용하여 제 1 도전층을 에칭함으로써 오목부를 갖는 제 2 도전층을 형성하고, 제 1 레지스트 마스크를 축소하여 제 2 레지스트 마스크를 형성하고, 제 2 레지스트 마스크를 사용하여 제 2 도전층을 에칭함으로써 주연에 테이퍼 형상의 돌출부를 각각 갖는 소스 전극 및 드레인 전극을 형성하고, 소스 전극 및 드레인 전극 위에 반도체층의 일부와 접하는 게이트 절연층을 형성하고, 게이트 절연층 위에서 반도체층과 중첩되는 부분에 게이트 전극을 형성한다.
Description
도 2의 (A)는 반도체 장치의 구성예를 도시한 평면도이고, 도 2의 (B) 및 (C)는 단면도.
도 3의 (A) 내지 (E)는 반도체 장치의 제작 공정을 도시한 단면도.
도 4의 (A) 내지 (E)는 반도체 장치의 제작 공정을 도시한 단면도.
도 5의 (A) 및 (B)는 반도체 장치의 구성예를 각각 도시한 단면도.
도 6의 (A) 내지 (C)는 반도체 장치의 응용예를 도시한 도면.
도 7은 반도체 장치의 응용예를 도시한 도면.
도 8의 (A) 및 (B)는 반도체 장치의 응용예를 도시한 도면.
도 9의 (A) 내지 (F)는 반도체 장치를 사용한 전자 기기를 각각 도시한 도면.
도 10의 (A), (B1), (B2), (C1), (C2), 및 (D1)는 실시예에서 제작된 샘플의 제작 공정을 도시한 단면도.
도 11의 (A) 및 (B)는 실시예에서 형성된 도전층의 STEM 사진.
본 출원은 2011년 1월 28일에 일본 특허청에 출원된 일련 번호가 2011-016343인 일본 특허 출원에 기초하고, 본 명세서에 그 전문이 참조로 통합된다.
Claims (4)
- 반도체 장치로서,
단층 구조를 가지는 게이트 전극,
상기 게이트 전극 위의 게이트 절연층,
상기 게이트 절연층 위의 산화물 반도체층, 및
상기 산화물 반도체층 위의 소스 전극 및 드레인 전극을 가지고,
상기 게이트 전극의 단부는 하부가 돌출되어 있고,
상기 게이트 절연층은 상기 돌출되어 있는 하부와 접하도록 제공되어 있고,
상기 하부의 막 두께는 상기 게이트 전극의 다른 부분의 막 두께와 비교하여 얇고,
상기 하부의 측면은 제 1 테이퍼 각을 가지는 테이퍼 형상을 가지고,
상기 게이트 전극의 상부의 측면은 제 2 테이퍼 각을 가지는 테이퍼 형상을 가지고,
상기 제 1 테이퍼 각과 상기 제 2 테이퍼 각은 다른 각도이고,
상기 제 1 테이퍼 각은 상기 제 2 테이퍼 각보다 작은, 반도체 장치. - 제 1 항에 있어서,
상기 산화물 반도체층은 채널 형성 영역을 가지고,
상기 산화물 반도체층은 In, Ga, 및 Zn을 가지는, 반도체 장치. - 제 1 항에 있어서,
상기 소스 전극 및 드레인 전극은 제 1 막 두께를 가지는 제 1 영역과, 상기 제 1 막 두께보다 얇은 제 2 막 두께를 가지는 제 2 영역을 가지고,
상기 제 2 영역은 상기 게이트 전극, 상기 게이트 절연층, 및 상기 산화물 반도체층과 중첩되며, 또한, 테이퍼 형상을 가지는, 반도체 장치. - 제 1 항에 있어서,
상기 소스 전극 및 드레인 전극은 단층인, 반도체 장치.
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| DE112012000601T5 (de) | 2014-01-30 |
| US8987727B2 (en) | 2015-03-24 |
| KR20140006896A (ko) | 2014-01-16 |
| JP2012169610A (ja) | 2012-09-06 |
| JP2025036685A (ja) | 2025-03-14 |
| KR20190058722A (ko) | 2019-05-29 |
| KR101984218B1 (ko) | 2019-05-30 |
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