KR20200123064A - 촬상 소자 및 그 제조 방법 및 전자 기기 - Google Patents
촬상 소자 및 그 제조 방법 및 전자 기기 Download PDFInfo
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Abstract
Description
도 2A는 도 1에 도시한 촬상 소자의 고정 전하막의 제조 방법을 설명하기 위한 단면도.
도 2B는 도 2A에 계속된 공정을 도시하는 단면도.
도 2C는 도 2B에 계속된 공정과 함께, 고정 전하막의 구성의 한 예를 도시하는 단면도.
도 3A는 도 1에 도시한 촬상 소자의 고정 전하막의 다른 제조 방법을 설명하기 위한 단면도.
도 3B는 도 3A에 계속된 공정을 도시하는 단면도.
도 3C는 도 3B에 계속된 공정과 함께, 고정 전하막의 다른 구성례를 도시하는 단면도.
도 4는 본 개시된 변형례에 관한 촬상 소자의 단면도.
도 5는 적용례에 따른 고체 촬상 장치의 기능 블록도.
도 6은 다른 적용례에 따른 전자 기기의 기능 블록도.
Claims (20)
- 촬상 장치에 있어서,
기판에 배치된 제1의 광전 변환 영역과,
상기 기판에서 상기 제1의 광전 변환 영역에 인접한 제2의 광전 변환 영역과,
상기 제1의 광전 변환 영역과 상기 제2의 광전 변환 영역 사이에 배치된 분리홈과,
상기 분리홈에 배치되고 상기 분리홈의 벽면에 직접 접촉하는 산화실리콘을 포함하는 제1의 막과,
상기 분리홈에 배치되고 상기 제1의 막 위에 배치된 산화알루미늄을 포함하는 제2의 막과,
상기 분리홈에 배치되고 상기 제2의 막 위에 배치된 산화하프늄을 포함하는 제3의 막과,
상기 분리홈에 배치되고 상기 제3의 막 위에 배치된 산화탄탈을 포함하는 제4의 막을 구비하는 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 분리홈에 배치되고 상기 제4의 막 위에 배치된 산화실리콘을 포함하는 제5의 막을 더 포함하는 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제1의 막은 상기 기판의 수광면 위에 더 배치되는 것을 특징으로 하는 촬상 장치. - 제3항에 있어서,
상기 제2의 막은 상기 제1의 막 위에 추가로 배치되고, 상기 제2의 막은 상기 기판의 수광면에 배치되는 것을 특징으로 하는 촬상 장치. - 제4항에 있어서,
상기 제3의 막은 상기 제2의 막 위에 추가로 배치되고, 상기 제3의 막은 상기 기판의 수광면에 배치되는 것을 특징으로 하는 촬상 장치. - 제5항에 있어서,
상기 제4의 막은 상기 제3의 막 위에 추가로 배치되고, 상기 제4의 막은 상기 기판의 수광면에 배치되는 것을 특징으로 하는 촬상 장치. - 제6항에 있어서,
상기 제5의 막은 상기 제4의 막 위에 추가로 배치되고, 상기 제5의 막은 상기 기판의 수광면에 배치되는 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제4의 막은 상기 수광면 위에 배치된 제1의 두께와, 상기 분리홈에 배치된 제2의 두께를 가지며, 상기 제1의 두께는 제2의 두께보다 두꺼운 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 수광면에서 상기 제5의 막 위에 배치된 차광막을 더 포함하는 것을 특징으로 하는 촬상 장치. - 제9항에 있어서,
상기 차광막은 분리홈에 대응하여 배치되는 것을 특징으로 하는 촬상 장치. - 제9항에 있어서,
상기 차광막은 텅스텐 또는 알루미늄을 포함하는 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 분리홈의 깊이는 0.25㎛ 이상 5㎛ 이하인 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 분리홈의 폭은 100nm 이상 1000nm 이하인 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제2의 막 두께는 1nm 이상 25nm 이하인 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제3의 막 두께는 1nm 이상 25nm 이하인 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제2의 막 및 제3의 막 전체 두께는 2nm 이상 100nm 이하인 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제4의 막 두께는 10nm 이상 80nm 이하인 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제1의 막 두께는 약 1nm 인 것을 특징으로 하는 촬상 장치. - 제1항에 있어서,
상기 제2의 막, 제3의 막 또는 제4의 막 중 어느 하나 또는 그 이상이 실리콘을 포함하는 것을 특징으로 하는 촬상 장치. - 제1항 내지 제19항 중 어느 한 항에 기재된 촬상 장치가 제공되는 것을 특징으로 하는 전자 기기.
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