KR102652087B1 - 반도체 발광소자 - Google Patents
반도체 발광소자 Download PDFInfo
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- KR102652087B1 KR102652087B1 KR1020160173025A KR20160173025A KR102652087B1 KR 102652087 B1 KR102652087 B1 KR 102652087B1 KR 1020160173025 A KR1020160173025 A KR 1020160173025A KR 20160173025 A KR20160173025 A KR 20160173025A KR 102652087 B1 KR102652087 B1 KR 102652087B1
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Abstract
Description
도2a 내지 도2g는 본 발명의 일 실시예에 따른 반도체 발광소자의 제조방법(광차단막 형성)을 설명하기 위한 주요공정별 측단면도이다.
도3a 내지 도3f는 본 발명의 일 실시예에 따른 반도체 발광소자의 제조방법을 설명하기 위한 주요공정별 평면도이다.
도4a 내지 도4d는 본 발명의 일 실시예에 따른 반도체 발광소자의 제조방법(파장변환구조 형성)을 설명하기 위한 주요공정별 측단면도이다.
도5는 본 발명의 일 실시예에 따른 반도체 발광소자의 측단면도이다.
도6a 내지 도6d는 각각 본 발명의 일 실시예에 채용가능한 복합 버퍼층의 다양한 예를 나타내는 측단면도이다.
도7은 본 발명의 일 실시예에 의한 반도체 발광소자를 구비하는 조명 장치를 나타내는 개략적인 분해 사시도이다.
Claims (10)
- 제1 영역과 상기 제1 영역을 둘러싸는 제2 영역을 갖는 제1 면과 상기 제1 면과 반대에 위치한 제2 면을 가지며, 파장변환물질이 함유된 투광성 지지체;
상기 투광성 지지체의 제1 면의 제1 영역 상에 배치되며, 제1 및 제2 도전형 반도체층과 상기 제1 및 제2 도전형 반도체층 사이에 배치된 활성층을 포함하는 반도체 적층체;
상기 투광성 지지체와 상기 반도체 적층체 사이에 배치된 투광성 접합층;
상기 반도체 적층체를 덮으며 상기 투광성 지지체의 제2 영역으로 연장되고, 상기 제1 도전형 반도체층에 연결된 제1 개구와, 상기 제2 도전형 반도체층에 연결된 제2 개구와, 상기 반도체 적층체를 둘러싸도록 상기 투광성 지지체의 제2 영역 상에 형성된 제3 개구를 갖는 절연층;
상기 절연층 상에서 상기 제3 개구를 통해 상기 투광성 접합층에 연결되어 상기 반도체 적층체를 둘러싸도록 배치된 광차단막;
상기 절연층 상에 배치되며, 상기 제1 개구를 통해 상기 제1 도전형 반도체층에 연결된 제1 전극; 및
상기 절연층 상에 배치되며, 상기 제2 개구를 통해 상기 제2 도전형 반도체층에 연결된 제2 전극;을 포함하고,
상기 광차단막은 상기 제1 및 제2 전극의 일부와 동일한 물질을 포함하는 반도체 발광소자.
- 제1항에 있어서,
상기 투광성 지지체는 상기 파장변환물질이 함유된 글래스 기판을 포함하는 것을 특징으로 하는 반도체 발광소자.
- 제1항에 있어서,
상기 투광성 지지체는 형광체로 이루어진 세라믹 기판을 포함하는 것을 특징으로 하는 반도체 발광소자.
- 삭제
- 삭제
- 삭제
- 제1항에 있어서,
상기 투광성 지지체의 파장변환물질은 상기 활성층으로부터 생성된 광의 일부를 제1 파장의 광으로 변환하는 제1 파장변환물질이며,
상기 투광성 접합층은 상기 활성층으로부터 생성된 광의 일부를 상기 제1 파장과 다른 제2 파장의 광으로 변환하는 제2 파장변환물질을 포함하는 반도체 발광소자.
- 제1항에 있어서,
상기 투광성 접합층은, 스핀 온 글래스(spin on glass)를 포함하는 것을 특징으로 하는 반도체 발광소자.
- 제1 영역과 상기 제1 영역을 둘러싸는 제2 영역을 갖는 제1 면과 상기 제1 면과 반대에 위치한 제2 면을 가지며, 파장변환물질이 함유된 접합물질로 이루어진 투광성 지지체;
상기 투광성 지지체의 제1 면의 제1 영역에 접합되며, 제1 및 제2 도전형 반도체층과 상기 제1 및 제2 도전형 반도체층 사이에 배치된 활성층을 포함하는 반도체 적층체;
상기 반도체 적층체를 덮으며 상기 투광성 지지체의 제2 영역으로 연장되고, 상기 제1 도전형 반도체층에 연결된 제1 개구와, 상기 제2 도전형 반도체층에 연결된 제2 개구와, 상기 반도체 적층체를 둘러싸도록 상기 투광성 지지체의 제2 영역 상에 형성된 제3 개구를 갖는 절연층;
상기 절연층 상에서 상기 제3 개구를 통해 상기 투광성 지지체에 연결되어 상기 반도체 적층체를 둘러싸도록 배치된 광차단막;
상기 절연층 상에 배치되며, 상기 제1 개구를 통해 상기 제1 도전형 반도체층에 연결된 제1 전극; 및
상기 절연층 상에 배치되며, 상기 제2 개구를 통해 상기 제2 도전형 반도체층에 연결된 제2 전극;을 포함하고,
상기 광차단막은 상기 제1 및 제2 전극의 일부와 동일한 물질을 포함하는 반도체 발광소자.
- 제9항에 있어서,
상기 투광성 지지체의 접합물질은 스핀 온 글래스인 것을 특징으로 하는 반도체 발광소자.
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