KR20170093912A - 산화물 보호막의 제조 방법, 산화물 보호막, 박막 트랜지스터의 제조 방법, 박막 트랜지스터, 및 전자 디바이스 - Google Patents
산화물 보호막의 제조 방법, 산화물 보호막, 박막 트랜지스터의 제조 방법, 박막 트랜지스터, 및 전자 디바이스 Download PDFInfo
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- KR20170093912A KR20170093912A KR1020177018673A KR20177018673A KR20170093912A KR 20170093912 A KR20170093912 A KR 20170093912A KR 1020177018673 A KR1020177018673 A KR 1020177018673A KR 20177018673 A KR20177018673 A KR 20177018673A KR 20170093912 A KR20170093912 A KR 20170093912A
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- oxide
- oxide semiconductor
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Abstract
Description
도 2는 본 개시에 의하여 제조되는 산화물 보호막을 구비한 박막 트랜지스터의 구성의 다른 예를 나타내는 개략도이다.
도 3은 본 개시에 의하여 제조되는 산화물 보호막을 구비한 박막 트랜지스터의 구성의 다른 예를 나타내는 개략도이다.
도 4는 실시형태의 액정 표시 장치의 일부분을 나타내는 개략도이다.
도 5는 도 4에 나타내는 액정 표시 장치의 전기 배선의 개략도이다.
Claims (21)
- 용매 및 50atom% 이상이 인듐인 금속 성분을 포함하는 산화물 보호막 전구체 용액을, 기판 상에 형성된 인듐을 포함하는 산화물 반도체막 상에 도포하여 산화물 보호막 전구체막을 형성하는 공정과,
상기 산화물 보호막 전구체막을 상기 산화물 반도체막보다 비저항이 높은 산화물 보호막으로 전화시키는 공정을 포함하는 산화물 보호막의 제조 방법. - 청구항 1에 있어서,
상기 산화물 반도체막에 포함되는 금속 성분의 50atom% 이상이 인듐인 산화물 보호막의 제조 방법. - 청구항 1 또는 청구항 2에 있어서,
상기 용매가 아실기를 갖는 용매를 포함하는 산화물 보호막의 제조 방법. - 청구항 3에 있어서,
상기 아실기가 아세틸기인 산화물 보호막의 제조 방법. - 청구항 1 또는 청구항 2에 있어서,
상기 용매가 폴리올을 포함하는 산화물 보호막의 제조 방법. - 청구항 4 또는 청구항 5에 있어서,
상기 용매가 아세틸아세톤 및 에틸렌글라이콜 중 적어도 한쪽을 포함하는 산화물 보호막의 제조 방법. - 청구항 1 내지 청구항 6 중 어느 한 항에 있어서,
상기 산화물 보호막 전구체 용액에 포함되는 인듐이 인듐 이온인 산화물 보호막의 제조 방법. - 청구항 1 내지 청구항 7 중 어느 한 항에 있어서,
상기 산화물 보호막 전구체 용액이 질산 이온을 포함하는 산화물 보호막의 제조 방법. - 청구항 1 내지 청구항 8 중 어느 한 항에 있어서,
상기 산화물 보호막 전구체막을 상기 산화물 보호막으로 전화시키는 공정에 있어서, 상기 산화물 보호막 전구체막이 가열되고 있는 조건하에서 상기 산화물 보호막 전구체막에 자외선 조사를 행하는 산화물 보호막의 제조 방법. - 청구항 1 내지 청구항 9 중 어느 한 항에 있어서,
상기 산화물 보호막 전구체막을 상기 산화물 보호막으로 전화시키는 공정에 있어서, 상기 기판의 온도를 120℃ 초과로 유지하는 산화물 보호막의 제조 방법. - 청구항 10에 있어서,
상기 산화물 보호막 전구체막을 상기 산화물 보호막으로 전화시키는 공정에 있어서, 상기 기판의 온도를 200℃ 미만으로 유지하는 산화물 보호막의 제조 방법. - 청구항 1 내지 청구항 11 중 어느 한 항에 있어서,
상기 산화물 반도체막은, 용매 및 인듐을 포함하는 산화물 반도체 전구체 용액을 상기 기판 상에 도포하여 산화물 반도체 전구체막을 형성한 후, 상기 산화물 반도체 전구체막을 전화시킨 산화물 반도체막인 산화물 보호막의 제조 방법. - 청구항 1 내지 청구항 12 중 어느 한 항에 기재된 산화물 보호막의 제조 방법에 의하여 제조된 산화물 보호막.
- 게이트 전극과, 게이트 절연막과, 인듐을 포함하는 산화물 반도체막과, 상기 산화물 반도체막 중 적어도 일부를 보호하는 청구항 13에 기재된 산화물 보호막과, 소스 전극과, 드레인 전극을 갖는 박막 트랜지스터.
- 게이트 전극과, 게이트 절연막과, 인듐을 포함하는 산화물 반도체막과, 소스 전극과, 드레인 전극과, 상기 산화물 반도체막 중 적어도 일부를 보호하는 산화물 보호막을 갖고, 상기 산화물 반도체막 중의 탄소 농도를 CS, 상기 산화물 보호막 중의 탄소 농도를 CP로 했을 때, 하기의 관계식 (I)을 충족시키는 박막 트랜지스터.
100≥CP/CS≥10 (I)
식 (I)에 있어서 CP 및 CS의 단위는 모두 atoms/cm3이다. - 청구항 15에 있어서,
상기 산화물 반도체막 중의 탄소 농도 CS가 1×1021atoms/cm3 이하인 박막 트랜지스터. - 청구항 15 또는 청구항 16에 있어서,
상기 산화물 보호막 중의 탄소 농도 CP가 1×1022atoms/cm3 이상인 박막 트랜지스터. - 청구항 14 내지 청구항 17 중 어느 한 항에 있어서,
보텀 게이트 구조를 갖는 박막 트랜지스터. - 청구항 18에 있어서,
상기 산화물 반도체막 상에 상기 소스 전극 및 상기 드레인 전극이 형성되어 있고, 또한 상기 소스 전극과 상기 드레인 전극의 사이에서 노출되는 상기 산화물 반도체막 상에 상기 산화물 보호막이 형성되어 있는 구조를 갖는 박막 트랜지스터. - 기판 상에 게이트 전극을 형성하는 공정과,
상기 기판 및 상기 게이트 전극 상에 게이트 절연막을 형성하는 공정과,
상기 게이트 절연막 상에 인듐을 포함하는 산화물 반도체막을 형성하는 공정과,
상기 산화물 반도체막 상에 소스 전극 및 드레인 전극을 형성하는 공정과,
상기 소스 전극과 상기 드레인 전극의 사이에서 노출되는 상기 산화물 반도체막 상에 청구항 1 내지 청구항 12 중 어느 한 항에 기재된 산화물 보호막의 제조 방법에 의하여 상기 산화물 반도체막보다 비저항이 높은 산화물 보호막을 형성하는 공정을 갖는 박막 트랜지스터의 제조 방법. - 청구항 14 내지 청구항 청구항 19 중 어느 한 항에 기재된 박막 트랜지스터를 구비한 전자 디바이스.
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| PCT/JP2015/084179 WO2016121230A1 (ja) | 2015-01-28 | 2015-12-04 | 酸化物保護膜の製造方法、酸化物保護膜、薄膜トランジスタの製造方法、薄膜トランジスタ、及び電子デバイス |
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| JP6983895B2 (ja) * | 2017-09-01 | 2021-12-17 | 富士フイルム株式会社 | 前駆体フィルム、両面導電性フィルムの製造方法、タッチパネルセンサー |
| JP2019165040A (ja) * | 2018-03-19 | 2019-09-26 | 株式会社リコー | 酸化インジウムを含む膜の製造方法、及び電界効果型トランジスタの製造方法 |
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