KR100937879B1 - 역전 발광 소자 제조 방법 및 역전 발광 다이오드 - Google Patents
역전 발광 소자 제조 방법 및 역전 발광 다이오드 Download PDFInfo
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- KR100937879B1 KR100937879B1 KR1020017010647A KR20017010647A KR100937879B1 KR 100937879 B1 KR100937879 B1 KR 100937879B1 KR 1020017010647 A KR1020017010647 A KR 1020017010647A KR 20017010647 A KR20017010647 A KR 20017010647A KR 100937879 B1 KR100937879 B1 KR 100937879B1
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Abstract
Description
Matsushita Co의 JP 11 191 641 A는 높은 발광 효과를 얻기 위해 발광층으로부터 p측 전극으로 진행하는 광이 높은 반사 효율성으로 광 반사 표면의 측에 대해 반사하도록 구성되는 플립칩 반도체 발광 소자의 구조물을 기술하고 있다. p 전극이 옴 층 및 반사층으로 구성되는 적층형 물질내에 형성된다.
Nichia Chem Ind의 JP 11 150 297은 반투명 기판상에 형성된 p형 GaN 반도체층이 제공되고, 하나 또는 둘 이상의 GaN 반도체층이 그 사이에 발광층을 포함하는, 질화물 방사-도체 발광 소자를 기술하고 있다.
Shakuda의 US 5 557 115는 반도체 칩 및 반도체 칩과 어셈블리된 서브마운트를 포함하는 발광 반도체 디바이스를 기술하고 있다. 반도체 칩은 기판의 후미 표면으로부터 방사될 광을 생성하기 위한 광 침투성 절연 기판을 포함한다.
Claims (26)
- 역전 발광 소자(an inverted light emitting device)를 제조하는 방법에 있어서,성장 구조물(a growth structure)(10) 상에 Ⅲ족 질화물 헤테로 구조물(a Ⅲ-nitride heterostructure)(11, 12, 13)을 증착하는 단계와,반사층과 함께 반투명 옴 접촉층(a semi-transparent ohmic contact layer)을 포함하는 다층의 컨택트인 p 전극(20) 및 n 전극(22)을 상기 Ⅲ족 질화물 헤테로 구조물의 동일한 측에 전기적으로 접속하는 단계와,상기 p 전극(20) 및 상기 n 전극(22)에 서브마운트(submount)를 부착하는 단계를 순서대로 포함하되,상기 방법은,상기 n 전극(22)이 상기 p 전극(20) 사이에 삽입되는 핑거(fingers)를 포함하는 것을 특징으로 하는역전 발광 소자 제조 방법.
- 삭제
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- 제 1 항에 있어서,상기 부착하는 단계는,솔더를 상기 Ⅲ족 질화물 헤테로 구조물에 도포하는 단계와,서브마운트 웨이퍼를 다이싱하는 단계와,상기 서브마운트를 패키지에 부착하는 단계와,상기 Ⅲ족 질화물 헤테로 구조물과 상기 서브마운트 사이에 조인트(joint)를 형성하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 6 항에 있어서,상기 Ⅲ족 질화물 헤테로 구조물과 상기 서브마운트 사이에 언더필(underfill)(107)을 디스펜싱(dispensing)하는 단계를 더 포함하는역전 발광 소자 제조 방법.
- 제 6 항에 있어서,상기 조인트를 형성하는 단계는,상기 Ⅲ족 질화물 헤테로 구조물과 상기 서브마운트 사이에 공융 접합부(eutectic bond)를 형성하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 6 항에 있어서,상기 조인트를 형성하는 단계는,상기 Ⅲ족 질화물 헤테로 구조물과 상기 서브마운트 사이에 솔더 조인트(solder joint)를 형성하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 1 항에 있어서,상기 n 전극상에 금속간 유전체(intermatal dielectric)를 도포하여, 상기 p 전극으로부터 상기 n 전극을 격리시키는 단계와,상기 유전체상에 시트 반사기(sheet reflector)를 적용하는 단계를 더 포함하는역전 발광 소자 제조 방법.
- 제 1 항에 있어서,상기 부착하는 단계는,솔더링가능 금속(solderable metals)을 상기 Ⅲ족 질화물 헤테로 구조물에 도포하는 단계와,상기 솔더링가능 금속을 패터닝하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 1 항에 있어서,상기 다층의 p 전극 컨택트(20)는 4×10-2Ωcm2보다 작은 고유(specific) 접촉 저항을 갖는역전 발광 소자 제조 방법.
- 제 1 항에 있어서,상기 부착하는 단계는,솔더링가능 금속을 상기 Ⅲ족 질화물 헤테로 구조물에 도포하는 단계와,솔더링가능 영역을 규정하기 위해 유전체를 도포하는 단계와,상기 유전체를 패터닝하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 1 항에 있어서,상기 다층의 p 전극 컨택트(20)의 광 흡수가 경로 당 35%보다 작은역전 발광 소자 제조 방법.
- 제 1 항 또는 제 14 항에 있어서,상기 서브마운트를 부착하는 단계는,상호접속부(60)를 서브마운트 웨이퍼에 적용하는 단계와,상기 p 및 n 전극(20, 22)과 상기 상호접속부(60) 사이에 조인트를 형성하는 단계와,서브마운트를 형성하기 위해 상기 서브마운트 웨이퍼를 다이싱(dicing)하는 단계와,상기 서브마운트를 패키지에 부착하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 15 항에 있어서,상기 p 전극(20) 및 상기 n 전극(22)에 서브마운트를 부착하는 단계는,상기 서브마운트 웨이퍼를 다이싱하는 단계 전에 상기 Ⅲ족 질화물 헤테로 구조물과 상기 서브마운트 웨이퍼 사이에 언더필(102)을 디스펜싱(dispensing)하는 단계를 더 포함하는역전 발광 소자 제조 방법.
- 제 15 항에 있어서,상기 조인트를 형성하는 단계는,상기 Ⅲ족 질화물 헤테로 구조물과 상기 서브마운트 사이에 공융 접합부를 형성하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 15 항에 있어서,상기 조인트를 형성하는 단계는,상기 Ⅲ족 질화물 헤테로 구조물과 상기 서브마운트 사이에 솔더 조인트를 형성하는 단계를 포함하는역전 발광 소자 제조 방법.
- 제 1 항에 있어서,상기 p 전극은 상기 옴 접촉층과 상기 반사층 사이에 장벽층을 더 포함하는역전 발광 소자 제조 방법.
- 제 1 항에 있어서,상기 성장 구조물(10)은 1.8보다 큰 굴절률을 갖는역전 발광 소자 제조 방법.
- 역전 발광 다이오드에 있어서,투명 수퍼스트레이트(superstrate)(10) 상에 배열된 Ⅲ족 질화물 에피텍셜 헤테로 구조물(11, 12, 13)과,반사층과 함께 반투명 옴 접촉층을 포함하는 다층의 컨택트인 p 전극(20)과,n 전극(22)- 상기 p 전극(20)과 상기 n 전극(22)은 상기 Ⅲ족 질화물 에피텍셜 헤테로 구조물의 동일한 측에 접속됨 -과,상기 p 전극(20) 및 상기 n 전극(22)에 접속된 서브마운트를 포함하되,상기 발광 다이오드는,상기 n 전극(22)이 상기 p 전극(20) 사이에 삽입되는 핑거를 포함하는 것을 특징으로 하는역전 발광 다이오드.
- 제 21 항에 있어서,상기 수퍼스트레이트(10)는 1.8보다 큰 굴절률을 갖는역전 발광 다이오드.
- 제 21 항 또는 제 22 항에 있어서,상기 역전 발광 다이오드의 면적은 400×400㎛2보다 큰역전 발광 다이오드.
- 제 21 항 또는 제 22 항에 있어서,상기 다층의 p 전극 컨택트(20)는 경로 당 35%보다 작은 광 흡수를 갖는역전 발광 다이오드.
- 제 21 항 또는 제 22 항에 있어서,상기 다층의 p 전극 컨택트(20)는 4×10-2Ωcm2보다 작은 고유 접촉 저항을 갖는역전 발광 다이오드.
- 제 21 항 또는 제 22 항에 있어서,상기 p 전극(20)은 상기 옴 접촉층과 상기 반사층 사이에 장벽층을 더 포함하는역전 발광 다이오드.
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|---|---|---|---|
| US09/470,450 US6514782B1 (en) | 1999-12-22 | 1999-12-22 | Method of making a III-nitride light-emitting device with increased light generating capability |
| US09/470,450 | 1999-12-22 |
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| Publication Number | Publication Date |
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| KR20020002472A KR20020002472A (ko) | 2002-01-09 |
| KR100937879B1 true KR100937879B1 (ko) | 2010-01-21 |
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| US (1) | US6514782B1 (ko) |
| EP (1) | EP1161772B1 (ko) |
| JP (2) | JP5535414B2 (ko) |
| KR (1) | KR100937879B1 (ko) |
| AU (1) | AU2738901A (ko) |
| DE (1) | DE60040526D1 (ko) |
| WO (1) | WO2001047039A1 (ko) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2001047039A8 (en) | 2001-10-25 |
| EP1161772B1 (en) | 2008-10-15 |
| US6514782B1 (en) | 2003-02-04 |
| DE60040526D1 (de) | 2008-11-27 |
| JP2012060182A (ja) | 2012-03-22 |
| JP5535414B2 (ja) | 2014-07-02 |
| AU2738901A (en) | 2001-07-03 |
| KR20020002472A (ko) | 2002-01-09 |
| EP1161772A1 (en) | 2001-12-12 |
| JP2001237458A (ja) | 2001-08-31 |
| WO2001047039A1 (en) | 2001-06-28 |
| JP5702711B2 (ja) | 2015-04-15 |
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