KR102605250B1 - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR102605250B1 KR102605250B1 KR1020160111011A KR20160111011A KR102605250B1 KR 102605250 B1 KR102605250 B1 KR 102605250B1 KR 1020160111011 A KR1020160111011 A KR 1020160111011A KR 20160111011 A KR20160111011 A KR 20160111011A KR 102605250 B1 KR102605250 B1 KR 102605250B1
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 반도체 장치의 일 부분을 도시한 단면도이다.
도 3은 본 발명의 일 실시예에 따른 반도체 장치의 일 부분을 도시한 단면도이다.
도 4a는 본 발명의 일 실시예에 따른 반도체 장치의 일 부분을 도시한 단면도이다.
도 4b는 본 발명의 일 실시예에 따른 반도체 장치의 일 부분을 도시한 단면도이다.
도 5a 내지 도 5m은 본 발명의 일 실시예에 따른 반도체 장치의 제조 방법을 도시한 단면도들이다.
도 6a 내지 도 6g는 본 발명의 일 실시예에 따른 반도체 장치의 제조 방법을 도시한 단면도들이다.
T2: 제2 트랜지스터 SP2: 제2 반도체 패턴
PTL: 보호층
Claims (20)
- 베이스 기판 상에 결정질 반도체 물질을 포함하는 초기 제1 반도체 패턴을 형성하는 단계;
상기 초기 제1 반도체 패턴 상에 제1 절연층을 형성하는 단계;
상기 초기 제1 반도체 패턴에 채널 영역을 형성하여 제1 반도체 패턴을 형성하는 단계;
상기 제1 절연층 상에 보호층을 형성하는 단계;
상기 보호층 상에 산화물 반도체 물질을 포함하는 초기 제2 반도체 패턴을 형성하는 단계;
상기 초기 제2 반도체 패턴 상에 제2 절연층을 형성하는 단계;
상기 초기 제2 반도체 패턴의 적어도 일부가 노출되도록 식각 가스를 이용하여 상기 제2 절연층을 패터닝하는 단계; 및
상기 초기 제2 반도체 패턴에 채널 영역을 형성하여 제2 반도체 패턴을 형성하는 단계를 포함하고,
상기 보호층은 상기 식각 가스에 대해 상기 제2 절연층으로부터 식각 선택비를 갖는 물질을 포함하는 반도체 장치 제조 방법. - 제1 항에 있어서,
상기 보호층의 상기 식각 가스에 대한 식각률(etching rate)은 상기 제2 절연층의 상기 식각 가스에 대한 식각률보다 작은 반도체 장치 제조 방법. - 제2 항에 있어서,
상기 보호층의 상기 식각 가스에 대한 식각률은 상기 제1 절연층의 상기 식각 가스에 대한 식각률보다 작은 반도체 장치 제조 방법. - 제2 항에 있어서,
상기 제2 절연층은 실리콘 산화물을 포함하는 반도체 장치 제조 방법. - 제4 항에 있어서,
상기 보호층은 금속 산화물을 포함하는 반도체 장치 제조 방법. - 제5 항에 있어서,
상기 금속 산화물은 알루미늄 산화물을 포함하는 반도체 장치 제조 방법. - 제1 항에 있어서,
상기 제1 절연층 및 상기 보호층 사이에 배치되는 제1 도전 패턴을 형성하는 단계; 및
상기 제2 절연층 상에 제2 도전 패턴을 형성하는 단계를 더 포함하고,
상기 제2 절연층을 패터닝하는 단계는 상기 제2 도전 패턴을 마스크로 이용하는 반도체 장치 제조 방법. - 제7 항에 있어서,
상기 제1 도전 패턴은 상기 제1 반도체 패턴에 중첩하는 제1 제어 전극을 포함하고,
상기 제2 도전 패턴은 상기 제2 반도체 패턴에 중첩하는 제2 제어 전극을 포함하는 반도체 장치 제조 방법. - 제8 항에 있어서,
상기 제2 절연층을 패터닝하는 단계 이후에 상기 보호층 상에 상기 제1 제어 전극과 중첩하는 상부 전극을 형성하는 단계를 더 포함하는 반도체 장치 제조 방법. - 제8 항에 있어서,
상기 제2 도전 패턴은 상기 제1 제어 전극에 중첩하는 상부 전극을 더 포함하고,
상기 제2 절연층을 패터닝하는 단계는 상기 제2 제어 전극 및 상기 상부 전극을 마스크로 이용하는 반도체 장치 제조 방법. - 제8 항에 있어서,
상기 제1 도전 패턴은 상기 제1 제어 전극에 인접하는 제1 커패시터 전극을 더 포함하고,
상기 제2 도전 패턴은 상기 제1 커패시터 전극에 중첩하는 제2 커패시터 전극을 더 포함하는 반도체 장치 제조 방법. - 제11 항에 있어서,
상기 제1 도전 패턴은 상기 제1 커패시터 전극과 상기 제1 제어 전극이 연결된 일체의 형상을 갖고,
상기 제2 커패시터 전극은 상기 제1 제어 전극 및 상기 제2 커패시터 전극에 중첩하는 일체의 형상을 갖는 반도체 장치 제조 방법. - 제1 항에 있어서,
상기 제1 반도체 패턴에 접속되는 제1 입력 전극 및 제1 출력 전극을 형성하는 단계; 및
상기 제2 반도체 패턴에 접속되는 제2 입력 전극 및 제2 출력 전극을 형성하는 단계를 더 포함하는 반도체 장치 제조 방법. - 제13 항에 있어서,
상기 제1 입력 전극, 상기 제1 출력 전극, 상기 제2 입력 전극, 및 상기 제2 출력 전극은 동시에 형성되는 반도체 장치 제조 방법. - 제13 항에 있어서,
상기 제1 입력 전극, 상기 제1 출력 전극, 상기 제2 입력 전극, 및 상기 제2 출력 전극 중 어느 하나에 연결되고, 적어도 하나의 발광층을 포함하는 유기발광 다이오드를 형성하는 단계를 더 포함하는 반도체 장치 제조 방법. - 베이스 기판;
상기 베이스 기판 상에 배치되고, 제1 입력 전극, 제1 출력 전극, 제1 제어 전극, 결정질 반도체를 포함하는 제1 반도체 패턴을 포함하는 제1 트랜지스터;
상기 베이스 기판 상에 배치되고, 제2 입력 전극, 제2 출력 전극, 제2 제어 전극, 산화물 반도체를 포함하는 제2 반도체 패턴을 포함하는 제2 트랜지스터;
상기 베이스 기판 상에 배치된 복수의 절연층들; 및
상기 제1 반도체 패턴 및 상기 제2 반도체 패턴 사이에 배치되고, 금속 산화물을 포함하는 보호층을 포함하고,
상기 복수의 절연층들은 중 어느 하나는 상기 제2 반도체 패턴과 상기 제2 제어 전극 사이에 배치되는 절연 패턴을 포함하고, 상기 절연 패턴은 상기 제2 제어 전극과 중첩하며 상기 제2 반도체 패턴의 일부를 노출시키고,
상기 보호층은 상기 절연 패턴과 식각 선택비를 갖는 물질을 포함하는 반도체 장치. - 제16 항에 있어서,
상기 보호층은 상기 절연층들 중 상기 제1 반도체 패턴과 상기 제1 제어 전극 사이에 배치된 제1 절연층 상에 직접 배치된 반도체 장치. - 삭제
- 제17 항에 있어서,
상기 제1 절연층 상에 배치된 제1 커패시터 전극; 및
상기 보호층 상에 배치되고 상기 제1 커패시터 전극과 전계를 형성하는 제2 커패시터 전극을 더 포함하는 반도체 장치. - 제17 항에 있어서,
상기 제1 절연층 상에 배치된 제1 커패시터 전극; 및
상기 보호층 상에 배치되고 상기 제1 커패시터 전극과 전계를 형성하는 제2 커패시터 전극을 더 포함하고,
상기 제1 커패시터 전극과 상기 제1 제어 전극은 서로 연결되어 일체의 형상을 갖는 반도체 장치.
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