KR102281846B1 - 박막 트랜지스터 표시판 및 그 제조 방법 - Google Patents
박막 트랜지스터 표시판 및 그 제조 방법 Download PDFInfo
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- KR102281846B1 KR102281846B1 KR1020150000226A KR20150000226A KR102281846B1 KR 102281846 B1 KR102281846 B1 KR 102281846B1 KR 1020150000226 A KR1020150000226 A KR 1020150000226A KR 20150000226 A KR20150000226 A KR 20150000226A KR 102281846 B1 KR102281846 B1 KR 102281846B1
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Abstract
Description
도 2는 도 1의 II-II선을 따라 잘라 나타내는 단면도이다.
도 3 내지 도 13은 본 발명의 일실시예에 따른 박막 트랜지스터 표시판의 제조 방법을 나타내는 단면도들이다.
도 14는 본 발명의 일 실시예에 따른 액정 표시 장치를 나타내는 단면도이다.
도 15는 본 발명의 일실시예에 따른 박막 트랜지스터 표시판을 나타내기 위해 도 1의 II-II선을 따라 잘라 나타내는 단면도이다.
도 16 내지 도 25는 본 발명의 일실시예에 따른 박막 트랜지스터 표시판의 제조 방법을 나타내는 단면도들이다.
154 반도체층 171 데이터선
173 소스 전극 175 드레인 전극
177 금속 산화물층 191 화소 전극
Claims (20)
- 기판,
상기 기판 위에 위치하는 게이트 전극,
상기 기판 위에 위치하는 반도체층,
상기 게이트 전극과 상기 반도체층 사이에 위치하는 게이트 절연막,
상기 반도체층 위에 위치하는 소스 전극 및 상기 소스 전극과 마주보는 드레인 전극,
상기 소스 전극 및 상기 드레인 전극의 상부면, 측면 및 하부면을 덮는 확산 금속층,
상기 소스 전극 및 상기 드레인 전극의 상부면 및 측면 상에 위치하는 상기 확산 금속층과 중첩하고, 상기 소스 전극 및 상기 드레인 전극의 하부면에는 위치하지 않는 금속 산화물층, 그리고 상기 소스 전극, 상기 드레인 전극 및 상기 금속 산화물층을 덮는 보호막을 포함하고,
상기 소스 전극 및 상기 드레인 전극은 제1 물질과 상기 제1 물질에 첨가된 제2 물질을 포함하고, 상기 금속 산화물층에 포함되는 금속은 상기 제2 물질이 확산되어 형성된 박막 트랜지스터 표시판. - 삭제
- 제1항에서,
상기 소스 전극 및 상기 드레인 전극은 구리 또는 구리합금을 포함하는 박막 트랜지스터 표시판. - 제3항에서,
상기 제2 물질은 Mn, Mg, Al, Mo, W, Ti, Ga, In, Ni, La, Nd, Sn, Ag, Cr, Zr, Zn, 및 Fe 중 적어도 하나를 포함하는 박막 트랜지스터 표시판. - 제4항에서,
상기 소스 전극 및 상기 드레인 전극 하단에 위치하는 배리어층을 더 포함하고, 상기 배리어층은 금속 산화물을 포함하는 박막 트랜지스터 표시판. - 제5항에서,
상기 배리어층은 인듐-아연 산화물(IZO), 갈륨-아연 산화물(GZO) 및, 알루미늄-아연 산화물(AZO) 중에 하나를 포함하는 박막 트랜지스터 표시판. - 삭제
- 제1항에서,
상기 보호막은 상기 금속 산화물층의 상부면 및 측벽과 접촉하는 박막 트랜지스터 표시판. - 제1항에서,
상기 소스 전극 및 상기 드레인 전극 하단에 위치하는 배리어층 그리고
상기 소스 전극 및 상기 드레인 전극 상단에 위치하는 캐핑층을 포함하고, 상기 배리어층 및 상기 캐핑층은 금속 산화물을 포함하는 박막 트랜지스터 표시판. - 제9항에서,
상기 반도체층의 채널 영역에 인접하여 상기 소스 전극 및 상기 드레인 전극 각각의 측벽이 노출되어 있고, 상기 노출된 소스 전극의 측벽 및 상기 노출된 드레인 전극의 측벽을 상기 금속 산화물층이 덮고 있는 박막 트랜지스터 표시판. - 제1항에서,
상기 반도체층은 산화물 반도체를 포함하는 박막 트랜지스터 표시판. - 제1항에서,
상기 반도체층의 측벽은 채널 영역을 제외하고 상기 소스 전극 및 상기 드레인 전극의 측벽과 동일하게 정렬되어 있는 박막 트랜지스터 표시판. - 기판 위에 게이트 전극을 형성하는 단계,
상기 기판 위에 반도체층을 형성하는 단계,
상기 게이트 전극과 상기 반도체층 사이에 게이트 절연막을 형성하는 단계,
상기 반도체층 위에 위치하는 소스 전극 및 상기 소스 전극과 마주보는 드레인 전극을 형성하는 단계,
상기 소스 전극 및 상기 드레인 전극을 열처리하여, 상기 소스 전극 및 상기 드레인 전극의 하부면, 측면 및 상부면을 둘러싸는 확산 금속층을 형성하는 단계,
상기 소스 전극 및 상기 드레인 전극의 상부면 및 측면을 덮는 상기 확산 금속층과 중첩하고, 상기 소스 전극 및 상기 드레인 전극의 하부면을 덮는 상기 확산 금속층과 중첩하지 않는 금속 산화물층을 형성하는 단계 그리고
상기 소스 전극, 상기 드레인 전극 및 상기 금속 산화물층을 덮는 보호막을 형성하는 단계를 포함하고,
상기 열처리하는 단계는 상기 소스 전극 및 상기 드레인 전극에 합금된 물질이 표면으로 확산하는 단계를 포함하는 박막 트랜지스터 표시판의 제조 방법. - 제13항에서,
상기 금속 산화물층을 형성하는 단계는 질소 산화물 플라즈마 처리하는 단계를 포함하는 박막 트랜지스터 표시판의 제조 방법. - 제14항에서,
상기 확산 금속층은 상기 소스 전극 및 상기 드레인 전극에 합금된 물질을 포함하는 박막 트랜지스터 표시판의 제조 방법. - 제15항에서,
상기 소스 전극 및 상기 드레인 전극을 형성하는 단계 이전에 상기 반도체층 위에 배리어층을 형성하는 단계를 더 포함하고, 상기 배리어층은 금속 산화물을 포함하도록 형성하는 박막 트랜지스터 표시판의 제조 방법. - 삭제
- 제15항에서,
상기 소스 전극 및 상기 드레인 전극을 형성하는 단계 이전에 상기 반도체층 위에 배리어층을 형성하는 단계 그리고
상기 소스 전극 및 상기 드레인 전극 위에 캐핑층을 형성하는 단계를 더 포함하고,
상기 배리어층 및 상기 캐핑층은 금속 산화물을 포함하도록 형성하는 박막 트랜지스터 표시판의 제조 방법. - 제13항에서,
상기 반도체층은 산화물 반도체를 포함하도록 형성하는 박막 트랜지스터 표시판의 제조 방법. - 제13항에서,
상기 반도체층을 형성하는 단계와 상기 소스 전극 및 상기 드레인 전극을 형성하는 단계는 하나의 마스크를 사용하여 동시에 수행하는 박막 트랜지스터 표시판의 제조 방법.
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US14/841,559 US9627548B2 (en) | 2015-01-02 | 2015-08-31 | Thin film transistor array panel and method of manufacturing the same |
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CN102646632B (zh) * | 2012-03-08 | 2014-04-02 | 京东方科技集团股份有限公司 | 阵列基板及其制作方法和显示装置 |
TWI607572B (zh) * | 2015-06-23 | 2017-12-01 | 群創光電股份有限公司 | 顯示面板 |
CN104952935B (zh) * | 2015-07-14 | 2018-06-22 | 深圳市华星光电技术有限公司 | 一种薄膜晶体管结构及其制备方法 |
CN115274860B (zh) * | 2015-11-20 | 2024-11-19 | 株式会社半导体能源研究所 | 半导体装置、该半导体装置的制造方法或包括该半导体装置的显示装置 |
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KR102424445B1 (ko) * | 2016-05-03 | 2022-07-22 | 삼성디스플레이 주식회사 | 박막 트랜지스터 표시판 및 그 제조 방법 |
US10916430B2 (en) * | 2016-07-25 | 2021-02-09 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
US11522059B2 (en) * | 2018-02-20 | 2022-12-06 | Intel Corporation | Metallic sealants in transistor arrangements |
CN109192739B (zh) * | 2018-09-17 | 2020-12-18 | 合肥鑫晟光电科技有限公司 | 一种薄膜晶体管及其制备方法、阵列基板和显示装置 |
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