KR102018329B1 - 결정성 반도체막 및 판상체 및 반도체장치 - Google Patents
결정성 반도체막 및 판상체 및 반도체장치 Download PDFInfo
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- KR102018329B1 KR102018329B1 KR1020187030849A KR20187030849A KR102018329B1 KR 102018329 B1 KR102018329 B1 KR 102018329B1 KR 1020187030849 A KR1020187030849 A KR 1020187030849A KR 20187030849 A KR20187030849 A KR 20187030849A KR 102018329 B1 KR102018329 B1 KR 102018329B1
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- semiconductor film
- crystalline semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 349
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- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
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- SRVXDMYFQIODQI-UHFFFAOYSA-K gallium(iii) bromide Chemical compound Br[Ga](Br)Br SRVXDMYFQIODQI-UHFFFAOYSA-K 0.000 description 5
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- 150000002259 gallium compounds Chemical class 0.000 description 4
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- 238000007740 vapor deposition Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
-
- H01L29/24—
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical 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
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical 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
- C23C16/448—Chemical 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 generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4481—Chemical 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 generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation using carrier gas in contact with the source material
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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
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02414—Oxide semiconducting materials not being Group 12/16 materials, e.g. ternary compounds
-
- 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
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/0242—Crystalline insulating materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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Abstract
Description
도 2는 본 발명의 쇼트키 배리어 다이오드(SBD)의 호적한 일례를 모식적으로 나타내는 도이다.
도 3은 본 발명의 쇼트키 배리어 다이오드(SBD)의 호적한 일례를 모식적으로 나타내는 도이다.
도 4는 본 발명의 금속반도체 전계효과 트랜지스터(MESFET)의 호적한 일례를 모식적으로 나타내는 도이다.
도 5는 본 발명의 고전자이동도 트랜지스터(HEMT)의 호적한 일례를 모식적으로 나타내는 도이다.
도 6은 본 발명의 금속산화막 반도체 전계효과 트랜지스터(MOSFET)의 호적한 일례를 모식적으로 나타내는 도이다.
도 7은 도 6의 금속산화막 반도체 전계효과 트랜지스터(MOSFET)의 제조 공정의 일부를 설명하기 위한 모식도이다.
도 8은 본 발명의 금속산화막 반도체 전계효과 트랜지스터(MOSFET)의 일례를 모식적으로 나타내는 도이다.
도 9는 본 발명의 정전 유도 트랜지스터(SIT)의 호적한 일례를 모식적으로 나타내는 도이다.
도 10은 본 발명의 쇼트키 배리어 다이오드(SBD)의 호적한 일례를 모식적으로 나타내는 도이다.
도 11은 본 발명의 쇼트키 배리어 다이오드(SBD)의 호적한 일례를 모식적으로 나타내는 도이다.
도 12는 본 발명의 고전자이동도 트랜지스터(HEMT)의 호적한 일례를 모식적으로 나타내는 도이다.
도 13은 본 발명의 금속산화막 반도체 전계효과 트랜지스터(MOSFET)의 호적한 일례를 모식적으로 나타내는 도이다.
도 14는 본 발명의 접합 전계효과 트랜지스터(JFET)의 호적한 일례를 모식적으로 나타내는 도이다.
도 15는 본 발명의 절연 게이트형 바이폴라트랜스지터(IGBT)의 호적한 일례를 모식적으로 나타내는 도이다.
도 16은 본 발명의 발광 소자(LED)의 호적한 일례를 모식적으로 나타내는 도이다.
도 17은 본 발명의 발광 소자(LED)의 호적한 일례를 모식적으로 나타내는 도이다.
도 18은 실시예에서 이용한 미스트CVD장치의 구성도이다.
도 19는 실시예에서 이용한 서셉터를 설명하는 도이다.
도 20은 실시예에서 이용한 서셉터와 공급관과의 단면적의 관계를 나타내는 도이다.
도 21은 본 발명의 실시예에서의 액중 도펀트 함유율과, 막중 게르마늄 함유량의 관계를 나타내는 그래프다.
도 22는 실시예에서의 쇼트키 배리어 다이오드(SBD)의 구조를 설명하는 도이다.
도 23은 실시예에서 게르마늄을 도핑한 반도체층의 SIMS분석의 결과를 나타내는 도이다.
도 24는 실시예에서 규소를 도핑한 반도체층의 SIMS분석의 결과를 나타내는 도이다.
도 25는 실시예에서 얻어진 자립막의 X선 회절상(回折像)을 나타내는 도이다.
도 26은 실시예에서의 쇼트키 배리어 다이오드(SBD)의 구조를 설명하는 도이다.
도 27은 실시예에서 얻어진 SBD의 전류전압특성을 나타내는 도이다.
도 28은 실시예에서 제작된 MESFET의 구조를 나타내는 도이다.
도 29는 실시예에서 제작된 MESFET의 DC특성을 나타내는 도이다. 한편, 종축은 드레인 전류(A)를 나타내고 횡축은 드레인 전압(V)을 나타낸다.
도 30은 실시예에서 이용한 미스트CVD장치의 개략구성도이다.
도 31은 실시예에서의 순방향의 전류전압특성의 평가 결과를 나타내는 도이다.
도 32는 실시예에서의 역방향의 전류전압특성의 평가 결과를 나타내는 도이다.
도 33은 실시예에서의 XRD의 결과를 나타내는 도이다.
도 34는 실시예에서의 막의 사진을 나타내는 도이다.
도 35는 실시예에서의 막의 사진을 나타내는 도이다.
2a 캐리어 가스원
2b 캐리어 가스(희석)원
3a 유량 조절 밸브
3b 유량 조절 밸브
4 미스트 발생원
4a 원료용액
4b 미스트
5 용기
5a 물
6 초음파진동자
7 성막실
8 핫 플레이트(hot plate)
9 공급관
10 기판
11 배기구
19 미스트CVD장치
20 기판
21 서셉터
22 캐리어 가스 공급 수단
23 유량 조절 밸브
24 미스트 발생원
24a 원료용액
25 용기
25a 물
26 초음파진동자
27 성막실
28 히터
51 서셉터
52 미스트 가속 수단
53 기판유지부
54 지지부
55 공급관
61 기판·서셉터 영역
62 배출 영역
101a n-형 반도체층
10lb n+형 반도체층
102 p형 반도체층
103 반절연체층
104 절연체층
105a 쇼트키 전극
105b 오믹 전극
109 기판
111a n-형 반도체층
11lb n+형 반도체층
114 반절연체층
115a 게이트 전극
115b 소스 전극
115c 드레인 전극
118 완충층
121a 밴드갭이 넓은 n형 반도체층
12lb 밴드갭이 좁은 n형 반도체층
121c n+형 반도체층
123 p형 반도체층
124 반절연체층
125a 게이트 전극
125b 소스 전극
125c 드레인 전극
128 완충층
129 기판
131a n-형 반도체층
13lb 제1의 n+형 반도체층
131c 제2의 n+형 반도체층
132 p형 반도체층
134 게이트 절연막
135a 게이트 전극
135b 소스 전극
135c 드레인 전극
138 완충층
139 반절연체층
141a n-형 반도체층
14lb 제1의 n+형 반도체층
141c 제2의 n+형 반도체층
142 p형 반도체층
145a 게이트 전극
145b 소스 전극
145c 드레인 전극
151 n형 반도체층
151a n-형 반도체층
15lb n+형 반도체층
152 p형 반도체층
154 게이트 절연막
155a 게이트 전극
155b 이미터 전극
155c 콜렉터 전극
161 n형 반도체층
162 p형 반도체층
163 발광층
165a 제1의 전극
165b 제2의 전극
167 투광성 전극
169 기판
171 α-Ga2O3층
175a 텅스텐 전극
175b 인듐 전극
181 n형 반도체층
185a 게이트 전극
185b 소스 전극
185c 드레인 전극
189 기판
Claims (19)
- 코랜덤 구조를 가지는 산화물반도체가, 원자비로, 결정성 반도체막의 전 성분에 대하여, 50% 이상 포함되어 있는 결정성 반도체막에 있어서, 상기 산화물반도체가 갈륨, 인듐 및 알루미늄으로부터 선택되는 1종 또는 2종 이상의 산화물을, 원자비로, 상기 산화물 반도체의 전 성분에 대하여, 50% 이상 포함하고, 막 두께가 1μm 이상인 결정성 반도체막과,
결정성 반도체막 상에 배치된 쇼트키 전극을 가지며,
쇼트키 전극은, Al, Mo, Co, Zr, Sn, Nb, Fe, Cr, Ta, Ti, Au, Pt, V, Mn, Ni, Cu, Hf, W, Ir, Zn, In, Pd, Nd, 및 Ag로부터 선택되는 적어도 1개의 금속을 포함하고,
결정성 반도체막은, 제1층과 제2층을 갖고, 제1층은 갈륨, 인듐 및 알루미늄으로부터 선택되는 1종 또는 2종 이상의 코랜덤 구조의 산화물을 포함하는, 반도체장치. - 제 1 항에 있어서,
결정성 반도체막 상에 배치된 쇼트키 전극은, 합금을 포함하는 것을 특징으로 하는, 반도체장치. - 코랜덤 구조를 가지는 산화물반도체가, 원자비로, 결정성 반도체막의 전 성분에 대하여, 50% 이상 포함되어 있는 결정성 반도체막에 있어서, 상기 산화물반도체가 갈륨, 인듐 및 알루미늄으로부터 선택되는 1종 또는 2종 이상의 산화물을, 원자비로, 상기 산화물 반도체의 전 성분에 대하여, 50% 이상 포함하고, 막 두께가 1μm 이상인 결정성 반도체막과,
결정성 반도체막 상에 배치된 쇼트키 전극을 가지며,
쇼트키 전극은, 금속산화물 도전막을 포함하고,
결정성 반도체막은, 제1층과 제2층을 갖고, 제1층은 갈륨, 인듐 및 알루미늄으로부터 선택되는 1종 또는 2종 이상의 코랜덤 구조의 산화물을 포함하는, 반도체장치. - 제 3 항에 있어서,
결정성 반도체막 상에 배치된 쇼트키 전극은, 산화 주석, 산화 아연, 산화 인듐, 산화 인듐 주석(ITO), 및 산화 아연 인듐(IZO)으로부터 선택되는 적어도 1개의 금속산화물을 포함하는 것을 특징으로 하는, 반도체장치. - 코랜덤 구조를 가지는 산화물반도체가, 원자비로, 결정성 반도체막의 전 성분에 대하여, 50% 이상 포함되어 있는 결정성 반도체막에 있어서, 상기 산화물반도체가 갈륨, 인듐 및 알루미늄으로부터 선택되는 1종 또는 2종 이상의 산화물을, 원자비로, 상기 산화물 반도체의 전 성분에 대하여, 50% 이상 포함하고, 막 두께가 1μm 이상인 결정성 반도체막과,
결정성 반도체막 상에 배치된 쇼트키 전극을 가지며,
쇼트키 전극은, 유기도전성 화합물을 포함하고,
결정성 반도체막은, 제1층과 제2층을 갖고, 제1층은 갈륨, 인듐 및 알루미늄으로부터 선택되는 1종 또는 2종 이상의 코랜덤 구조의 산화물을 포함하는, 반도체장치. - 제 5 항에 있어서,
결정성 반도체막 상에 배치된 쇼트키 전극은, 폴리아닐린, 폴리티오펜, 및 폴리피롤로부터 선택되는 적어도 1개의 유기도전성 화합물을 포함하는 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
쇼트키 전극은, 제1층과, 제1층의 위에 배치된 제2층을 포함하는 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
결정성 반도체막은, 단결정인 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
결정성 반도체막은, 다결정을 포함하는 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
결정성 반도체막은, 자립막인 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
결정성 반도체막은, 도펀트를 포함하는 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
결정성 반도체막은, n형 반도체층을 포함하는 것을 특징으로 하는, 반도체장치. - 삭제
- 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
제2층은, 제1층에 포함되는 것과 동일한 코랜덤 구조의 산화물을 포함하는 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
제1층은, n-형 반도체층이고, 제2층은, n+형 반도체층인 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
제1의 전극으로서의 쇼트키 전극과,
추가로, 제2의 전극을 포함하고,
쇼트키 전극은 반도체장치의 제1측면에 배치되고, 제2의 전극은 제1측면의 반대측인 제2측면에 배치되는 것을 특징으로 하는, 반도체장치. - 제 1 항, 제 3 항, 또는 제 5 항에 있어서,
제1의 전극으로서의 쇼트키 전극과,
추가로, 제2의 전극을 포함하고,
결정성 반도체막은 제1면과, 제1면의 반대측인 제2면을 가지며,
제1의 전극은, 결정성 반도체막의 제1면측에 배치되고,
제2의 전극은, 결정성 반도체막의 제2면측에 배치되는 것을 특징으로 하는, 반도체장치. - 삭제
- 제 17 항에 있어서,
제2의 전극은, 오믹 전극인 것을 특징으로 하는, 반도체장치.
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