KR102734788B1 - 반도체 장치의 제작 방법 - Google Patents
반도체 장치의 제작 방법 Download PDFInfo
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Abstract
산화물 반도체막을 포함하는 트랜지스터의 제작 공정에 있어서, 산화물 반도체막에 산소 도프 처리를 행하고, 그 후에 산화물 반도체막 및 산화물 반도체막 위에 설치된 산화알루미늄막에 대하여 가열 처리를 행함으로써 화학량론적 조성비를 초과하는 산소를 포함하는 영역을 갖는 산화물 반도체막을 형성한다. 상기 산화물 반도체막을 사용한 트랜지스터는, 바이어스―열 스트레스 시험(BT 시험) 전후에 있어서도 트랜지스터의 임계값 전압의 변화량이 저감되어, 신뢰성이 높은 트랜지스터가 된다.
Description
도 2는 반도체 장치의 제작 방법의 일 형태를 설명하는 도면.
도 3은 반도체 장치의 일 형태를 설명하는 평면도 및 단면도.
도 4는 반도체 장치의 일 형태를 설명하는 평면도 및 단면도.
도 5는 반도체 장치의 제작 방법의 일 형태를 설명하는 도면.
도 6은 반도체 장치의 일 형태를 설명하는 평면도 및 단면도.
도 7은 반도체 장치의 일 형태를 설명하는 도면.
도 8은 반도체 장치의 일 형태를 설명하는 도면.
도 9는 반도체 장치의 일 형태를 설명하는 도면.
도 10은 반도체 장치의 일 형태를 설명하는 도면.
도 11은 반도체 장치의 일 형태를 설명하는 도면.
도 12는 반도체 장치의 일 형태를 설명하는 도면.
도 13은 전자 기기를 도시한 도면.
도 14는 SIMS의 측정 결과를 도시한 도면.
도 15는 SIMS의 측정 결과를 도시한 도면.
도 16은 TDS의 측정 결과를 도시한 도면.
도 17은 TDS의 측정 결과를 도시한 도면.
110; 게이트 전극층 116; 채널 형성 영역
120; 불순물 영역 124; 금속 화합물 영역
128; 절연막 130; 절연막
140; 트랜지스터 142a; 드레인 전극층
142b; 소스 전극층 144; 산화물 반도체막
146; 게이트 절연막 148a; 게이트 전극층
148b; 전극층 150; 절연막
152; 절연막 162; 트랜지스터
164; 용량 소자 185; 기판
400; 기판 401; 게이트 전극층
402; 게이트 절연막 403; 산화물 반도체막
405a; 소스 전극층 405b; 드레인 전극층
407; 절연막 410; 트랜지스터
420; 트랜지스터 421; 산소
502; 게이트 절연막 506; 하지 절연막
510; 트랜지스터 520; 트랜지스터
601; 기판 602; 포토 다이오드
606a; 반도체막 606b; 반도체막
606c; 반도체막 608; 접착층
613; 기판 631; 절연막
632; 절연막 633; 층간 절연막
634; 층간 절연막 640; 트랜지스터
641; 전극층 642; 전극층
643; 도전층 645; 게이트 전극층
656; 트랜지스터 658; 포토 다이오드 리셋 신호선
659; 게이트 신호선 671; 포토 센서 출력 신호선
672; 포토 센서 기준 신호선 2701; 하우징
2703; 하우징 2705; 표시부
2707; 표시부 2711; 축부
2721; 전원 2723; 조작키
2725; 스피커 2800; 하우징
2801; 하우징 2802; 표시 패널
2803; 스피커 2804; 마이크로폰
2805; 조작키 2806; 포인팅 디바이스
2807; 카메라용 렌즈 2808; 외부 접속 단자
2810; 태양 전지 셀 2811; 외부 메모리 슬롯
3001; 본체 3002; 하우징
3003; 표시부 3004; 키보드
3021; 본체 3022; 스타일러스
3023; 표시부 3024; 조작 버튼
3025; 외부 인터페이스 3051; 본체
3053; 접안부 3054; 조작 스위치
3056; 배터리 4001; 기판
4002; 화소부 4003; 신호선 구동 회로
4004; 주사선 구동 회로 4005; 씰재
4006; 기판 4008; 액정층
4010; 트랜지스터 4011; 트랜지스터
4013; 액정 소자 4015; 접속 소자 전극층
4016; 단자 전극층 4018; FPC
4019; 이방성 도전막 4020; 절연막
4021; 절연막 4023; 절연막
4024; 절연막 4030; 전극층
4031; 전극층 4032; 절연막
4033; 절연막 4510; 격벽
4511; 전계 발광층 4513; 발광 소자
4514; 충전재 4612; 캐비티
4613; 구형 소자 4614; 충전재
4615a; 흑색 영역 4615b; 백색 영역
9601; 하우징 9603; 표시부
9605; 스탠드
Claims (9)
- 제 1 절연막을 형성하는 단계;
상기 제 1 절연막 위에 인듐, 갈륨, 및 아연을 포함하는 산화물 반도체막을 형성하는 단계;
상기 산화물 반도체막에 제 1 가열 처리를 행하는 단계;
상기 제 1 가열 처리를 행한 후에 상기 산화물 반도체막 위에 소스 전극 및 드레인 전극을 형성하는 단계;
상기 산화물 반도체막, 상기 소스 전극, 및 상기 드레인 전극 위에 제 2 절연막을 형성하는 단계;
상기 제 2 절연막을 통해 상기 산화물 반도체막에 산소를 첨가하는 단계;
상기 제 2 절연막 위에 게이트 전극을 형성하는 단계;
상기 게이트 전극 위에 산화 알루미늄을 포함하는 제 3 절연막을 형성하는 단계; 및
산소를 첨가한 후에 상기 산화물 반도체막 및 상기 제 3 절연막에 제 2 가열 처리를 행하는 단계를 포함하는, 반도체 장치 제작 방법. - 제 1 절연막을 형성하는 단계;
상기 제 1 절연막 위에 산화물 반도체막을 형성하는 단계;
상기 산화물 반도체막에 제 1 가열 처리를 행하는 단계;
상기 제 1 가열 처리를 행한 후에 상기 산화물 반도체막 위에 스퍼터링에 의하여 산화 알루미늄을 포함하는 제 2 절연막을 형성하는 단계;
상기 제 2 절연막을 형성한 후에 상기 산화물 반도체막에 산소를 첨가하는 단계;
상기 제 2 절연막 위에 게이트 전극을 형성하는 단계;
상기 게이트 전극 위에 산화 알루미늄을 포함하는 제 3 절연막을 형성하는 단계; 및
산소를 첨가한 후에 상기 산화물 반도체막, 상기 제 2 절연막, 및 상기 제 3 절연막에 제 2 가열 처리를 행하는 단계를 포함하고,
상기 제 2 가열 처리는 상기 산화물 반도체막에서의 수소 농도가 증가하지 않도록 행해지는, 반도체 장치 제작 방법. - 제 1 항 또는 제 2 항에 있어서,
상기 제 1 가열 처리는 불활성 가스를 포함하는 제 1 분위기에서 행해지고, 그 다음에 산소를 포함하는 제 2 분위기에서 행해지는, 반도체 장치 제작 방법. - 제 1 항 또는 제 2 항에 있어서,
상기 제 1 절연막 및 상기 산화물 반도체막은 대기에 해방하지 않고 연속적으로 형성되는, 반도체 장치 제작 방법. - 제 1 항 또는 제 2 항에 있어서,
상기 제 1 가열 처리는 250℃ 이상이고 700℃ 이하인 온도에서 행해지는, 반도체 장치 제작 방법. - 제 1 항 또는 제 2 항에 있어서,
상기 제 2 가열 처리는 350℃ 이상이고 650℃ 이하인 온도에서 행해지는, 반도체 장치 제작 방법. - 제 1 항 또는 제 2 항에 있어서,
산소 도프 처리에 의해 상기 산화물 반도체막에 산소가 첨가되는, 반도체 장치 제작 방법. - 제 1 항 또는 제 2 항에 있어서,
상기 산화물 반도체막은 결정 영역을 포함하는, 반도체 장치 제작 방법. - 제 1 항 또는 제 2 항에 있어서,
상기 산화물 반도체막은 섬 형상을 가지는, 반도체 장치 제작 방법.
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TWI602249B (zh) | 2017-10-11 |
KR20200023346A (ko) | 2020-03-04 |
JP2018082196A (ja) | 2018-05-24 |
TWI624878B (zh) | 2018-05-21 |
US11387116B2 (en) | 2022-07-12 |
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TW201839861A (zh) | 2018-11-01 |
TW201630079A (zh) | 2016-08-16 |
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US8828794B2 (en) | 2014-09-09 |
US20200203183A1 (en) | 2020-06-25 |
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US20160284564A1 (en) | 2016-09-29 |
KR102084921B1 (ko) | 2020-03-05 |
JP6767550B2 (ja) | 2020-10-14 |
KR20240041295A (ko) | 2024-03-29 |
TWI541904B (zh) | 2016-07-11 |
JP2017022390A (ja) | 2017-01-26 |
TW201730985A (zh) | 2017-09-01 |
JP6268244B2 (ja) | 2018-01-24 |
KR20120104097A (ko) | 2012-09-20 |
KR102298155B1 (ko) | 2021-09-07 |
JP2012209546A (ja) | 2012-10-25 |
TW201250859A (en) | 2012-12-16 |
KR20210110279A (ko) | 2021-09-07 |
US9362136B2 (en) | 2016-06-07 |
US10002775B2 (en) | 2018-06-19 |
US20180277392A1 (en) | 2018-09-27 |
JP2021007158A (ja) | 2021-01-21 |
JP2019220697A (ja) | 2019-12-26 |
JP6046358B2 (ja) | 2016-12-14 |
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