KR101916968B1 - 인쇄가능한 화합물 반도체 장치를 박리시키기 위한 물질 및 방법 - Google Patents
인쇄가능한 화합물 반도체 장치를 박리시키기 위한 물질 및 방법 Download PDFInfo
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Abstract
Description
도 2a 내지 도 2c는 본 발명의 추가의 실시양태에 따라 밀봉층을 포함하는 인쇄가능한 화합물 반도체 장치를 제조하기 위한 구조물 및 방법을 예시하는 단면도이다.
도 3은 본 발명의 일부 실시양태에 따라 인쇄가능한 화합물 반도체 장치를 제조하는 방법을 예시하는 흐름도이다.
Claims (49)
- 기판 위에 인듐 알루미늄 인화물을 포함하는 패터닝된 박리층을 제공하는 단계,
패터닝된 박리층 위에 지지층을 제공하는 단계,
지지층 위에 1개 이상의 장치층을 제공하는 단계,
상기 1개 이상의 장치층에 반도체 장치를 형성하는 단계, 및
지지층 및 기판의 실질적 에칭 없이 패터닝된 박리층을 선택적으로 에칭하여, 반도체 장치가 기판으로부터 부분적으로 박리되도록 지지층을 기판으로부터 분리시키는 단계
를 포함하고,
여기서,
지지층 및 기판은 패터닝된 박리층이 상기 지지층 및 기판에 비해 에칭 선택성을 갖도록 하는 각각의 물질을 포함하는 것이고,
에칭 후에, 패터닝된 박리층은 충분히 에칭되어 1개 이상의 장치층과 기판 사이의 물리적인 연결을 유지시키고, 상기 물리적인 연결은 파괴가능한 속박부에 의해 상기 지지층과 고정부를 직접적으로 연결하는 고정 및 속박 구조물을 포함하며,
상기 1개 이상의 장치층은 스탬프에 의해 전사 인쇄 동안에 속박 구조물을 파괴함으로서 박리되는 것인, 전사가능한 반도체 장치의 제조 방법. - 제1항에 있어서, 기판 또는 지지층이 비소화물-기재의 물질을 포함하고, 패터닝된 박리층이 지지층을 기판에 접촉 및 결합시키는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제2항에 있어서, 패터닝된 박리층, 지지층 및 1개 이상의 장치층을 제공하는 단계가
비소화물-기재의 물질을 포함하는 기판 위에 인듐 알루미늄 인화물을 포함하는 패터닝된 박리층을 에피택셜하게 성장시키고,
패터닝된 박리층 위에 비소화물-기재의 물질을 포함하는 지지층을 에피택셜하게 성장시키며,
지지층 위에 1개 이상의 장치층을 에피택셜하게 성장시키는 것
을 포함하는 것인, 전사가능한 반도체 장치의 제조 방법. - 제3항에 있어서, 지지층이 장치층, 패터닝된 박리층 또는 기판에 비해 압축 변형하에 있는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제3항에 있어서, 패터닝된 박리층과 기판 사이의 격자 불일치가 500 백만분율 (ppm) 미만인 것인, 전사가능한 반도체 장치의 제조 방법.
- 제2항에 있어서, 기판 또는 지지층이 III족 비소화물 물질 또는 III족-V족 비소화물 물질을 포함하는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제6항에 있어서, 비소화물-기재의 물질이 인듐 갈륨 비소화물, 갈륨 비소화물, 인듐 갈륨 질화 비소화물 또는 인듐 갈륨 질화 비소화 안티몬화물을 포함하는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제1항에 있어서, 선택적으로 에칭하는 단계가
염산을 포함하는 에칭 용액을 사용하여 인듐 알루미늄 인화물 패터닝된 박리층을 선택적으로 횡방향 에칭하는 것
을 포함하는 것인, 전사가능한 반도체 장치의 제조 방법. - 제8항에 있어서, 에칭 용액이 에탄올을 추가로 포함하는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제9항에 있어서, 에칭 용액이 기판 또는 지지층 위에 자가-조립된 단층을 형성하도록 구성된 화합물을 추가로 포함하는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제8항에 있어서, 패터닝된 박리층이 0.02 마이크로미터 (㎛) 내지 1 ㎛의 두께를 갖고, 선택적 에칭이 1시간 당 0.1 밀리미터 (mm) 초과의 속도로 패터닝된 박리층을 에칭하기에 충분한 것인, 전사가능한 반도체 장치의 제조 방법.
- 제1항에 있어서, 1개 이상의 장치층이 상기 1개 이상의 장치층 두께보다 100배 이상 더 긴 길이만큼 지지층 위에서 횡방향 확장되는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제1항에 있어서,
패터닝된 박리층의 선택적 에칭 단계 이전에 1개 이상의 장치층 위에 반도체 장치를 부분적으로 또는 완전히 형성시키고 패터닝된 박리층 일부를 미세제조 기술에 의해 노출시키는 단계
를 추가로 포함하는 전사가능한 반도체 장치의 제조 방법. - 제1항에 있어서,
패터닝된 박리층의 선택적 에칭 단계 이전에 1개 이상의 장치층 위에 밀봉층을 형성하는 단계
를 추가로 포함하는 전사가능한 반도체 장치의 제조 방법. - 제14항에 있어서, 밀봉층이 포토레지스트 물질을 포함하는 것이고,
패터닝된 박리층의 선택적 에칭 단계 이전에 포토레지스트 물질을 소성시키는 단계
를 추가로 포함하는 전사가능한 반도체 장치의 제조 방법. - 제14항에 있어서,
밀봉층 내에 고정(anchoring) 또는 속박(tethering) 구조물을 형성하는 단계
를 추가로 포함하고, 여기서 상기 고정 또는 속박 구조물은 선택적 에칭 단계 동안 및 그 이후에 반도체 장치의 공간적 방향을 유지하도록 구성된 것인, 전사가능한 반도체 장치의 제조 방법. - 제14항에 있어서, 1개 이상의 장치층이 광 전지 활성층을 포함하는 것이고, 밀봉층 형성 단계 이전에
활성층 위에 인듐 알루미늄 인화물 윈도우층을 제공하는 단계, 및
윈도우층 위에 유전성 반사 방지 코팅물을 제공하는 단계
를 추가로 포함하는 전사가능한 반도체 장치의 제조 방법. - 제14항에 있어서, 1개 이상의 장치층이 인듐 알루미늄 인화물 또는 알루미늄 갈륨 비소화물을 포함하는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제1항에 있어서, 지지층이 50 미만 표면 저항(ohms per square)의 시트 내성을 갖는 III족 비소화물-기재의 횡방향 전도층을 포함하는 것인, 전사가능한 반도체 장치의 제조 방법.
- 제1항에 있어서, 1개 이상의 장치층이 전사가능한 광 전지, 발광 다이오드, 고주파 장치 또는 무선 장치의 활성층을 포함하는 것인, 전사가능한 반도체 장치의 제조 방법.
- 염산과 에탄올의 혼합물 중에서 인듐 알루미늄 인화물의 패터닝된 박리층을 선택적으로 횡방향 에칭하여 인쇄가능한 반도체 장치가 갈륨 비소화물 기판에 부착된 채로 남아있게 하여, 갈륨 비소화물 기판으로부터 지지층을 분리하여 인쇄가능한 반도체 장치가 기판으로부터 부분적으로 박리되도록 하는 단계
를 포함하며,
여기서, 에칭 후에, 패터닝된 박리층은 충분이 에칭되어 1개 이상의 장치와 기판 사이의 물리적인 연결을 유지시키고, 상기 물리적인 연결은 파괴가능한 속박부에 의해 상기 지지층과 고정부를 직접적으로 연결하는 고정 및 속박 구조물을 포함하며,
상기 1개 이상의 장치가 스탬프에 의해 전사 인쇄 동안에 속박 구조물을 파괴함으로서 박리되는 것인, 갈륨 비소화물 기판으로부터 지지층 상에 형성된 인쇄가능한 반도체 장치의 박리 방법. - 제21항에 있어서, 상기 혼합물이 화합물 반도체 위에 자가-조립된 단층을 형성하는 화합물을 추가로 포함하는 것인, 갈륨 비소화물 기판으로부터 인쇄가능한 장치의 박리 방법.
- 갈륨 비소화물 기판 위에서 인듐 알루미늄 인화물 박리층을 에피택셜하게 성장시키고, 상기 박리층을 패터닝하고, 패터닝된 박리층에 인접한 비소화물-기재의 단일 지지층, 및 장치층을 에피택셜하게 성장시켜서 에피-적층물을 형성하는 단계,
에피-적층물 위에 1개 이상의 기능적 장치를 부분적으로 또는 완전히 형성시키고 패터닝된 박리층의 일부를 미세제조 기술에 의해 노출시키는 단계, 및
염산과 에탄올의 혼합물 중에서 패터닝된 박리층을 선택적으로 횡방향 에칭시키고, 지지층을 기판으로부터 분리시켜 1개 이상의 기능적 장치가 갈륨 비소화물 기판에 부착된 채로 남아있도록 하는 단계
를 포함하며,
여기서, 에칭 후에, 패터닝된 박리층은 충분이 에칭되어 1개 이상의 장치층과 기판 사이의 물리적인 연결을 유지시키고, 상기 물리적인 연결은 파괴가능한 속박부에 의해 상기 지지층과 고정부를 직접적으로 연결하는 고정 및 속박 구조물을 포함하며,
상기 1개 이상의 장치층은 스탬프에 의해 전사 인쇄 동안에 속박 구조물을 파괴함으로서 박리되는 것인, 박리될 수 있는 인쇄가능한 기능적 장치의 제조 방법. - 제23항에 있어서, 박리층이 20 나노미터 내지 1 마이크로미터의 두께를 갖는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
- 제23항에 있어서, 박리층에 인접한 비소화물-기재의 층이 인듐 갈륨 비소화물, 갈륨 비소화물, 인듐 갈륨 질화 비소화물 또는 인듐 갈륨 질화 비소화 안티몬화물을 포함하는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
- 제23항에 있어서, 박리층에 인접한 비소화물-기재의 층이 장치, 박리층 또는 기판의 일부에 비해 압축하에 성장되는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
- 제23항에 있어서, 장치층이 광 전지, 발광 다이오드, 레이저, 고주파 또는 무선 장치를 위한 활성 물질을 형성하는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
- 제23항에 있어서, 장치층이 인듐 알루미늄 인화물 또는 알루미늄 갈륨 비소화물을 포함하는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
- 제23항에 있어서, 미세제조 기술이 부분적으로 또는 완전히 형성된 장치를 염산과 에탄올의 혼합물에 의한 화학적 공격으로부터 보호하기 위한 포토레지스트의 적용 및 소성을 추가로 포함하는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
- 제23항에 있어서, 미세제조 기술이 박리 공정 전반에 걸쳐 인쇄가능한 장치의 공간적 방향을 유지하기 위해서 고정 및 속박 구조물을 형성하는 단계를 추가로 포함하는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
- 제23항에 있어서, 미세제조 기술이 포토레지스트 내에 고정 및 속박 구조물을 형성하는 단계를 추가로 포함하는 것인, 박리될 수 있는 인쇄가능한 장치의 제조 방법.
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