KR100632004B1 - 질화물 단결정 기판 제조방법 및 질화물 반도체 발광소자 제조방법 - Google Patents
질화물 단결정 기판 제조방법 및 질화물 반도체 발광소자 제조방법 Download PDFInfo
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Abstract
Description
Claims (33)
- 예비기판 상에 질화물 단결정층을 형성하는 단계;상기 질화물 단결정층 상면에 유동성을 갖는 경화성 접착물질을 도포하고, 상기 접착물질을 경화시켜 폴리머 지지층을 형성하는 단계; 및상기 예비기판 하면에 레이저를 조사하여 상기 예비기판으로부터 상기 질화물 단결정층을 분리하는 단계를 포함하는 질화물 단결정 기판 제조방법.
- 제1항에 있어서,상기 질화물 단결정층을 분리하는 단계 후에, 상기 질화물 단결정층으로부터 상기 폴리머 지지층을 제거하는 단계를 더 포함하는 질화물 단결정 기판 제조방법.
- 제1항에 있어서,상기 예비기판은 상기 질화물 단결정의 밴드갭보다 큰 에너지 밴드갭을 갖는 물질로 이루어진 것을 특징으로 하는 질화물 단결정 기판 제조방법.
- 제3항에 있어서,상기 예비기판은, 사파이어, SiC, Si, MgAl2O4, MgO, LiAlO2 및 LiGaO2로 구성된 그룹으로부터 선택된 물질로 이루어진 기판인 것을 특징으로 하는 질화물 단결정 기판 제조방법.
- 제1항에 있어서,상기 경화성 접착물질은 상기 질화물 단결정층과 접착력을 가지며, 열경화성 수지, 자외선경화성 수지 및 자연경화성 수지로 구성된 그룹에서 선택된 적어도 하나인 것을 특징으로 하는 질화물 단결정 기판 제조방법.
- 제5항에 있어서,상기 경화성 접착물질은 에폭시 수지인 것을 특징으로 하는 질화물 단결정 기판 제조방법.
- 제1항에 있어서,상기 경화성 접착물질을 도포하는 공정은 스핀코팅 또는 핸드 프린팅에 의해 실시되는 것을 특징으로 하는 질화물 단결정 기판 제조방법.
- 제1항에 있어서,상기 폴리머 지지층의 두께는 0.01∼5㎜인 것을 특징으로 하는 질화물 단결정 기판 제조방법.
- 예비기판 상에 제1 도전형 질화물 반도체층, 활성층 및 제2 도전형 질화물 반도체층이 순차적으로 적층된 질화물 발광구조물을 형성하는 단계;상기 질화물 발광구조물 상면에 유동성을 갖는 경화성 접착물질을 도포하고, 상기 접착물질을 경화시켜 폴리머 지지층을 형성하는 단계;상기 예비기판 하면에 레이저를 조사하여 상기 예비기판으로부터 상기 발광구조물를 분리하는 단계;상기 발광구조물의 분리된 면이 접합면으로 제공되도록, 상기 발광구조물과 도전성을 갖는 영구기판을 접합시키는 단계;상기 발광구조물로부터 상기 폴리머 지지층을 제거하는 단계; 및상기 영구기판의 하면과 상기 발광구조물 상면에 각각 제1 및 제2 전극을 형성하는 단계를 포함하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 제1 및 제2 전극을 형성하는 단계 후에, 상기 발광구조물을 원하는 개별 발광다이오드의 크기로 절단하는 단계를 더 포함하는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 발광구조물을 형성하는 단계와 상기 폴리머 지지층을 형성하는 단계 사이에, 상기 발광구조물을 원하는 개별 발광다이오드의 크기로 부분적으로 절단하는 단계와,상기 제1 및 제2 전극을 형성하는 단계 후에, 상기 발광구조물을 원하는 개별 발광다이오드의 크기로 완전하게 절단하는 단계를 더 포함하는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 발광구조물을 형성하는 단계와 상기 폴리머 지지층을 형성하는 단계 사이에, 상기 발광구조물을 원하는 개별 발광다이오드의 크기로 부분적으로 절단하는 단계를 더 포함하며,상기 부분적으로 절단하는 단계에서 잔류한 상기 발광구조물은 상기 예비기판과 분리하는 단계에서 제거됨으로써 개별 발광다이오드로 분리되는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제12항에 있어서,상기 부분적으로 절단하는 단계에서 잔류한 상기 발광구조물의 두께는 5㎚∼500㎚인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제11항 내지 제13항 중 어느 한 항에 있어서,상기 폴리머 지지층을 형성하는 단계는, 상기 부분적으로 절단하는 단계에서 절단된 홈까지 상기 경화성 접착물질이 충전되도록 도포하는 단계를 포함하는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제11항 내지 제13항 중 어느 한 항에 있어서,상기 부분적으로 절단하는 단계에서 절단되는 폭은 10∼500㎛인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 예비기판은 상기 제1 도전형 질화물 반도체층의 밴드갭보다 큰 에너지 밴드갭을 갖는 물질로 이루어진 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제16항에 있어서,상기 예비기판은 사파이어, SiC, Si, MgAl2O4, MgO, LiAlO2 및 LiGaO2로 구성된 그룹으로부터 선택된 물질로 이루어진 기판인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 경화성 접착물질은 상기 질화물 발광구조물과 접착력을 가지며, 열경화성 수지, 자외선경화성 수지 및 자연경화성 수지로 구성된 그룹에서 선택된 적어도 하나인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제18항에 있어서,상기 경화성 접착물질은 에폭시 수지인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 경화성 접착물질을 도포하는 공정은 스핀코팅 또는 핸드 프린팅에 의해 실시되는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 폴리머 지지층의 두께는 0.01∼5㎜인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제9항에 있어서,상기 제1 및 제2 도전형 질화물 반도체층은 각각 p형 및 n형 질화물 반도체층인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 예비기판 상에 제1 도전형 질화물 반도체층, 활성층 및 제2 도전형 질화물 반도체층이 순차적으로 적층된 질화물 발광구조물을 형성하는 단계;상기 질화물 발광구조물을 원하는 개별 발광다이오드 크기로 절단하는 단계;상기 제2 도전형 질화물 반도체층 상에 전극을 형성하는 단계;상기 질화물 발광구조물 상면에 유동성을 갖는 경화성 접착물질을 도포하고, 상기 접착물질을 경화시켜 폴리머 지지층을 형성하는 단계;상기 예비기판 하면에 레이저를 조사하여 상기 예비기판으로부터 상기 발광구조물을 분리하는 단계; 및상기 발광구조물로부터 상기 폴리머 지지층을 제거하는 단계를 포함하는 질화물 반도체 발광소자 제조방법.
- 제23항에 있어서,상기 발광구조물을 절단하는 단계는, 상기 발광구조물을 원하는 개별 발광다이오드의 크기로 부분적으로 절단하는 단계이며,상기 부분적으로 절단하는 단계에서 잔류한 상기 발광구조물 부분은 상기 예비기판과 분리하는 단계에서 제거됨으로써 개별 발광다이오드로 분리되는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제23항에 있어서,상기 부분적으로 절단하는 단계에서 잔류한 상기 발광구조물의 두께는 5㎚∼500㎚인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제24항 또는 제25항에 있어서,상기 폴리머 지지층을 형성하는 단계는, 상기 부분적으로 절단하는 단계에서 절단된 홈까지 상기 경화성 접착물질이 충전되도록 도포하는 단계를 포함하는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제24항 또는 제25항에 있어서,상기 부분적으로 절단하는 단계에서 절단되는 폭은 10∼500㎛인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제23항에 있어서,상기 예비기판은 상기 제1 도전형 질화물 반도체층의 밴드갭보다 큰 에너지 밴드갭을 갖는 물질로 이루어진 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제28항에 있어서,상기 예비기판은 사파이어, SiC, Si, MgAl2O4, MgO, LiAlO2 및 LiGaO2로 구성된 그룹으로부터 선택된 물질로 이루어진 기판인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제23항에 있어서,상기 경화성 접착물질은 상기 질화물 발광구조물과 접착력을 가지며, 열경화성 수지, 자외선경화성 수지 및 자연경화성 수지로 구성된 그룹에서 선택된 적어도 하나인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제30항에 있어서,상기 경화성 접착물질은 에폭시 수지인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제23항에 있어서,상기 경화성 접착물질을 도포하는 공정은 스핀코팅 또는 핸드 프린팅에 의해 실시되는 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
- 제23항에 있어서,상기 폴리머 지지층의 두께는 0.01~5㎜인 것을 특징으로 하는 질화물 반도체 발광소자 제조방법.
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EP06253864A EP1753018B1 (en) | 2005-08-12 | 2006-07-24 | Method for manufacturing nitride based single crystal substrate and method for manufacturing nitride based semiconductor device |
US11/492,009 US8932891B2 (en) | 2005-08-12 | 2006-07-25 | Method for manufacturing nitride based single crystal substrate and method for manufacturing nitride based semiconductor device |
JP2006211250A JP5273423B2 (ja) | 2005-08-12 | 2006-08-02 | 窒化物半導体発光素子の製造方法 |
US12/843,522 US20100291719A1 (en) | 2005-08-12 | 2010-07-26 | Method for manufacturing nitride based single crystal substrate and method for manufacturing nitride based semiconductor device |
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2005
- 2005-08-12 KR KR1020050074246A patent/KR100632004B1/ko active IP Right Grant
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2006
- 2006-07-24 EP EP06253864A patent/EP1753018B1/en active Active
- 2006-07-25 US US11/492,009 patent/US8932891B2/en active Active
- 2006-08-02 JP JP2006211250A patent/JP5273423B2/ja active Active
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2010
- 2010-07-26 US US12/843,522 patent/US20100291719A1/en not_active Abandoned
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JP2003347587A (ja) | 2002-05-23 | 2003-12-05 | Matsushita Electric Ind Co Ltd | 半導体装置の製造方法 |
JP2005039195A (ja) | 2003-06-26 | 2005-02-10 | Nippon Sheet Glass Co Ltd | レンズ付き発光素子の製造方法 |
JP2005056957A (ja) | 2003-07-31 | 2005-03-03 | Shin Etsu Handotai Co Ltd | 発光素子の製造方法および仮支持貼り合わせ体 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100752721B1 (ko) | 2006-07-12 | 2007-08-29 | 삼성전기주식회사 | 수직구조 질화갈륨계 led 소자의 제조방법 |
KR101679397B1 (ko) * | 2010-09-24 | 2016-11-25 | 서울바이오시스 주식회사 | 수직형 발광 소자 제조 방법 |
KR101035998B1 (ko) | 2010-11-18 | 2011-05-23 | 한빔 주식회사 | 수직형 led 제조 방법 |
WO2012067326A1 (ko) * | 2010-11-18 | 2012-05-24 | 한빔 주식회사 | 수직형 led 제조 방법 |
Also Published As
Publication number | Publication date |
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US8932891B2 (en) | 2015-01-13 |
EP1753018A2 (en) | 2007-02-14 |
US20070082486A1 (en) | 2007-04-12 |
EP1753018A3 (en) | 2010-03-31 |
EP1753018B1 (en) | 2012-09-12 |
JP2007053357A (ja) | 2007-03-01 |
JP5273423B2 (ja) | 2013-08-28 |
US20100291719A1 (en) | 2010-11-18 |
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