KR102294511B1 - 반도체 장치 및 이의 제작방법 - Google Patents
반도체 장치 및 이의 제작방법 Download PDFInfo
- Publication number
- KR102294511B1 KR102294511B1 KR1020167009673A KR20167009673A KR102294511B1 KR 102294511 B1 KR102294511 B1 KR 102294511B1 KR 1020167009673 A KR1020167009673 A KR 1020167009673A KR 20167009673 A KR20167009673 A KR 20167009673A KR 102294511 B1 KR102294511 B1 KR 102294511B1
- Authority
- KR
- South Korea
- Prior art keywords
- film
- insulating film
- semiconductor film
- transistor
- 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.)
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Images
Classifications
-
- H01L29/7869—
-
- 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
-
- 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
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Abstract
Description
도 2는 본 발명의 일 실시예의 트랜지스터의 대역도들을 도시하는 도면.
도 3은 본 발명의 일 실시예의 트랜지스터의 대역도들을 도시하는 도면.
도 4는 본 발명의 일 실시예의 트랜지스터의 대역도들을 도시하는 도면.
도 5는 본 발명의 일 실시예의 트랜지스터의 대역도들을 도시하는 도면.
도 6은 본 발명의 일 실시예의 증착 장치를 도시하는 도면.
도 7은 본 발명의 일 실시예의 트랜지스터를 도시하는 평면도 및 단면도.
도 8은 산화물 반도체막의 나노빔 전자 회절 패턴을 각각 도시하는 도면.
도 9는 투과 전자 회절 측정 장치의 일 예를 도시하는 도면.
도 10은 투과 전자 회절 측정에 의한 구조 분석의 일 예를 도시하는 도면.
도 11은 본 발명의 실시예들의 트랜지스터들을 도시하는 단면도.
도 12는 본 발명의 일 실시예의 트랜지스터들을 도시하는 평면도 및 단면도.
도 13은 본 발명의 실시예들의 트랜지스터들을 도시하는 단면도.
도 14는 본 발명의 일 실시예의 트랜지스터들을 도시하는 평면도 및 단면도.
도 15는 본 발명의 실시예들의 트랜지스터들을 도시하는 단면도.
도 16은 본 발명의 일 실시예의 트랜지스터들을 도시하는 평면도 및 단면도.
도 17은 본 발명의 실시예들의 반도체 장치들의 단면도 및 회로도.
도 18은 각각 본 발명의 일 실시예의 메모리 장치의 회로도.
도 19는 본 발명의 일 실시예의 RFID 태그의 블록도.
도 20은 본 발명의 일 실시예의 RFID 태그의 적용 예들을 도시하는 도면.
도 21은 본 발명의 일 실시예의 CPU를 도시하는 블록도.
도 22는 본 발명의 일 실시예의 메모리 소자의 회로도.
도 23은 본 발명의 일 실시예의 표시 장치의 평면도 및 회로도.
도 24는 본 발명의 일 실시예의 표시 모듈을 도시하는 도면.
도 25는 본 발명의 일 실시예의 전자 장치를 각각 도시하는 도면.
도 26은 산화물의 조성과 전자 친화력, 이온화 에너지, 및 에너지 갭 사이의 관계들의 예들을 도시하는 도면.
Claims (20)
- 반도체 장치에 있어서:
제 1 절연막;
상기 제 1 절연막 위의 산화물 반도체막;
상기 산화물 반도체막 위의 제 2 절연막; 및
도전막을 포함하고,
상기 산화물 반도체막은 인듐, 갈륨, 및 아연을 함유하고,
상기 제 1 절연막 또는 상기 제 2 절연막은 상기 산화물 반도체막과 상기 도전막 사이에 있고,
상기 산화물 반도체막은 상기 제 1 절연막 또는 상기 제 2 절연막을 향해 증가하는 갈륨의 농도 기울기를 갖는, 반도체 장치. - 제 1 항에 있어서,
상기 산화물 반도체막의 조성은 상기 제 1 절연막과 상기 제 2 절연막 사이에서 연속적으로 변하는, 반도체 장치. - 삭제
- 제 1 항에 있어서,
상기 산화물 반도체막은 상기 제 1 절연막을 향해 증가하는 상기 갈륨의 농도 기울기 및 상기 제 2 절연막을 향해 증가하는 상기 갈륨의 농도 기울기를 갖는, 반도체 장치. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 반도체 장치를 제작하는 방법에 있어서:
제 1 절연막을 형성하는 단계;
상기 제 1 절연막 위에 산화물 반도체막을 형성하는 단계;
상기 산화물 반도체막 위에 제 2 절연막을 형성하는 단계; 및
도전막을 형성하는 단계를 포함하고,
상기 제 1 절연막 또는 상기 제 2 절연막은 상기 산화물 반도체막과 상기 도전막 사이에 형성되고,
상기 산화물 반도체막을 형성하는 단계는 소스 가스들의 유량비가 변하는 동안 열 화학 증기 증착법에 의해 수행되고,
인듐을 함유하는 가스, 원소 M을 함유하는 가스, 및 아연을 함유하는 가스가 상기 소스 가스들로서 사용되고,
막 형성이 진행됨에 따라, 상기 소스 가스들 내에서 상기 원소 M을 함유하는 가스의 비율을 감소시키고,
막 형성이 끝나감에 따라, 상기 원소 M을 함유하는 가스의 비율을 증가시키는, 반도체 장치를 제작하는 방법. - 제 10 항에 있어서,
상기 원소 M은 알루미늄, 갈륨, 이트륨, 또는 주석인, 반도체 장치를 제작하는 방법. - 삭제
- 삭제
- 반도체 장치를 제작하는 방법에 있어서:
제 1 절연막을 형성하는 단계;
상기 제 1 절연막 위에 산화물 반도체막을 형성하는 단계;
상기 산화물 반도체막 위에 제 2 절연막을 형성하는 단계; 및
도전막을 형성하는 단계를 포함하고,
상기 제 1 절연막 또는 상기 제 2 절연막은 상기 산화물 반도체막과 상기 도전막 사이에 형성되고,
상기 산화물 반도체막을 형성하는 단계는 제 1 단계 및 상기 제 1 단계 후의 제 2 단계에서 수행되고,
상기 제 1 단계는 열 화학 증기 증착법에 의해 아연을 함유하는 가스를 사용하여 0.1 원자층 이상 20 원자층 이하의 두께를 갖는 산화 아연층을 증착하는 단계를 포함하고,
상기 제 2 단계는, 소스 가스들의 유량비가 변하는 동안, 열 화학 증기 증착법에 의해 인듐, 원소 M, 및 아연을 함유하는 반도체막을 증착하는 단계를 포함하고,
인듐을 함유하는 가스, 상기 원소 M을 함유하는 가스, 및 아연을 함유하는 가스가 상기 소스 가스들로서 사용되고,
상기 원소 M은 알루미늄, 갈륨, 이트륨, 또는 주석이고,
막 형성이 진행됨에 따라, 상기 소스 가스들 내에서 상기 원소 M을 함유하는 가스의 비율을 감소시키고,
막 형성이 끝나감에 따라, 상기 원소 M을 함유하는 가스의 비율을 증가시키는, 반도체 장치를 제작하는 방법. - 제 14 항에 있어서,
인듐, 상기 원소 M, 및 아연을 함유하는 상기 반도체막은, 상기 산화 아연층이 시드 결정으로서 성장하는 동안 증착되는, 반도체 장치를 제작하는 방법. - 제 14 항에 있어서,
상기 산화 아연층 및 상기 반도체막은 공기에 노출되지 않고 연속적으로 증착되는, 반도체 장치를 제작하는 방법. - 삭제
- 반도체 장치에 있어서:
제 1 절연막;
상기 제 1 절연막 위의 산화물 반도체막; 및
상기 산화물 반도체막 위의 제 2 절연막을 포함하고,
상기 산화물 반도체막은 인듐, 원소 M, 및 아연을 함유하고,
상기 산화물 반도체막은 상기 제 1 절연막을 향해 감소하는 원소 M의 농도 기울기 및 상기 제 2 절연막을 향해 감소하는 원소 M의 농도 기울기를 갖는, 반도체 장치. - 제 1 항 또는 제 18 항에 있어서,
상기 산화물 반도체막은 상기 제 1 절연막과 접하고 0.1 원자층 이상 20 원자층 이하의 두께를 갖는 산화 아연층을 포함하는, 반도체 장치. - 제 18 항에 있어서,
상기 원소 M은 알루미늄, 갈륨, 이트륨, 또는 주석인, 반도체 장치.
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US9406761B2 (en) | 2016-08-02 |
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WO2015037692A1 (en) | 2015-03-19 |
US20150076491A1 (en) | 2015-03-19 |
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