KR20020095003A - 발광 디바이스 및 그 제조 방법과 발광 디바이스에 대한투명 광학 소자 접착 방법 - Google Patents
발광 디바이스 및 그 제조 방법과 발광 디바이스에 대한투명 광학 소자 접착 방법 Download PDFInfo
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/20—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/36—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes
- H01L33/40—Materials therefor
- H01L33/405—Reflective materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
- Led Device Packages (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
Description
Claims (62)
- 액티브 영역을 포함하는 반도체층을 포함하는 층의 스택을 구비하는 발광 디바이스에 있어서,상기 스택에 접착되는 투명 광학 소자(a transparent optical element)를 포함하는발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자는 집광기(an optical concentrator)를 포함하는발광 디바이스.
- 제 2 항에 있어서,상기 집광기는 포물선형 벽을 포함하는발광 디바이스.
- 제 2 항에 있어서,상기 집광기는 원뿔형 벽(a cone-shaped wall)을 포함하는발광 디바이스.
- 제 2 항에 있어서,상기 집광기는 경사 측벽(a beveled side wall)을 포함하는발광 디바이스.
- 제 2 항에 잇어서,상기 집광기는 금속화물로 코팅된 측벽을 포함하는발광 디바이스.
- 제 2 항에 있어서,상기 집광기는 유전체 재료로 코팅된 측벽을 포함하는발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자는 총 내부 반사기(a total internal reflector)를 포함하는발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자는 광학 유리, Ⅲ족-Ⅴ족 반도체, Ⅱ족-Ⅵ족 반도체, Ⅳ족 반도체 및 화합물(compounds), 금속 산화물(metal oxides), 금속 플루오르화물(metal fluorides), 다이아몬드(diamonds), 이트륨 알루미늄 가닛(yttrium aluminum garnet) 및 들의 조합으로부터 이루어진 그룹으로부터 선택되는 재료로 형성되는발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자는 지르코늄 산화물(zirconium oxide), 사파이어(sapphire), GaP, ZnS 및 SiC로 이루어진 그룹으로부터 선택된 재료로 형성되는발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자는 상기 액티브 영역에 의해 방출되는 파장의 광을 적어도 다른 파장으로 변환하는 하나 이상의 발광 재료를 포함하는발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자는 상기 액티브 영역에 의해 방출되는 파장의 광을 적어도 다른 파장으로 변환하는 하나 이상의 발광 재료로 코팅되는발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자는 상기 스택의 표면에 접착되고,상기 표면의 길이에 대한 상기 광학 소자의 밑변 길이의 최소 비는 약 1보다 더 큰발광 디바이스.
- 제 13 항에 있어서,상기 비는 약 2보다 더 큰발광 디바이스.
- 제 1 항에 있어서,상기 스택은 상기 광학 소자 표면의 리세스(a recess) 내에 위치하는발광 디바이스.
- 제 1 항에 있어서,상기 액티브 영역에 의해 방출되는 광에 대한 상기 광학 소자의 굴절률은 약 1.5보다 더 큰발광 디바이스.
- 제 16 항에 있어서,상기 굴절률은 약 1.8보다 더 큰발광 디바이스.
- 제 1 항에 있어서,상기 광학 소자의 굴절률은 상기 액티브 영역에 의해 방출되는 광에 대한 상기 반도체 층의 굴절률 이상인발광 디바이스.
- 제 1 항에 있어서,상기 반도체 층에 전기적으로 접속되어 상기 액티브 영역 양단에 전압을 인가하는 컨택트를 더 포함하는발광 디바이스.
- 제 19 항에 있어서,상기 컨택트 중 적어도 하나는 상기 액티브 영역에 의해 방출되는 광에 대해 고 반사성이고 상기 광을 상기 광학 소자 방향으로 반사하도록 위치하는발광 디바이스.
- 제 1 항에 있어서,상기 액티브 영역으로부터 방출된 광을 상기 광학 소자 방향으로 반사하도록 위치한 적어도 하나의 경사면을 더 포함하는발광 디바이스.
- 제 1 항에 있어서,상기 액티브 영역으로에 의해 방출된 광을 상기 광학 소자 방향으로 반사하도록 위치한 적어도 하나의 고 반사층(at least one layer highly reflective)을 더 포함하는발광 디바이스.
- 제 1 항에 있어서,상기 투명 광학 소자는 상기 반도체 층 중 적어도 하나에 직접적으로 접착되는발광 디바이스.
- 제 1 항에 있어서,상기 스택은 상기 반도체 층 위에 위치하고 상기 광학 소자에 직접 접착되는 투명 수퍼스트레이트층(transparent superstrate layer)을 포함하는발광 디바이스.
- 제 24 항에 있어서,상기 수퍼스트레이트 층은 상기 액티브 영역에 의해 방출되는 광에 대해 약 1.8보다 더 큰 굴절률을 갖는발광 디바이스.
- 제 24 항에 있어서,상기 수퍼스트레이트 층은 사파이어, SiC, GaN 및 GaP로 이루어진 그룹으로부터 선택된 재료로 형성되는발광 디바이스.
- 제 24 항에 있어서,상기 광학 소자는 ZnS와 사파이어 중 하나를 포함하고,상기 수퍼스트레이트는 SiC, GaN 및 사파이어 중 하나를 포함하며상기 반도체 층은 Ⅲ족-질화물 반도체를 포함하는발광 디바이스.
- 제 27 항에 있어서,전기적으로 접속되어 상기 액티브 영역 양단에 전압을 인가하며, 상기 스택의 동일면 상에 위치하는 제 1 및 제 2 컨택트를 더 포함하는발광 디바이스.
- 제 24 항에 있어서,상기 광학 소자는 GaP로부터 형성되고,상기 수퍼스트레이트는 Ⅲ족-인화물 재료로부터 형성되며,상기 반도체 층은 Ⅲ족-인화물 반도체를 포함하는발광 디바이스.
- 제 29 항에 있어서,전기적으로 접속되어 상기 액티브 영역 양단에 전압을 인가하며 상기 스택의 동일면 상에 위치하는 제 1 및 제 2 컨택트를 더 포함하는발광 디바이스.
- 제 29 항에 있어서,상기 광학 소자와 상기 스택의 표면 사이에 위치하며, 상기 광학 소자를 상기 스택에 접착하는 투명 접착층을 더 포함하는발광 디바이스.
- 제 31 항에 있어서,상기 투명 접착층은 광학 유리(optical glass), 칼코겐화 유리(chalcogenide glass), Ⅲ족-Ⅴ족 반도체, Ⅱ족-Ⅵ족 반도체, Ⅳ족 반도체, 유기적 반도체(organic semiconductors), 금속, 금속 산화물(metal oxides), 금속 플루오르화물(metal fluorides), 이트륨 알루미늄 가닛(yttrium aluminum garnet), 인화물(phosphides), 비화물(arsenides), 안티몬화물(antimonides), 질화물(nitrides) 및 그 조합으로 이루어진 그룹으로부터 선택된 재료로 형성되는발광 디바이스.
- 제 31 항에 있어서,상기 투명 접착층은 상기 액티브 영역에 의해 방출되는 파장의 광을 적어도 다른 파장으로 변환하는 하나 이상의 발광 재료를 포함하는발광 디바이스.
- 제 31 항에 있어서,상기 접착층은 상기 액티브 영역에 의해 방출되는 광에 대해 약 1.5보다 더 큰 굴절률을 갖는발광 디바이스.
- 제 34 항에 있어서,상기 굴절률은 약 1.8보다 더 큰발광 디바이스.
- 제 31 항에 있어서,상기 접착층은 두께가 약 500Å보다 더 작은발광 디바이스.
- 제 31 항에 있어서,상기 표면은 상기 반도체층 중 하나의 표면을 포함하는발광 디바이스.
- 제 31 항에 있어서,상기 표면은 상기 반도체층 위에 위치하는 투명 수퍼스트레이트층의 표면을 포함하는발광 디바이스.
- 제 38 항에 있어서,상기 수퍼스트레이트층은 상기 액티브 영역에 의해 방출되는 광에 대해 약 1.8보다 더 큰 굴절률을 갖는발광 디바이스.
- 제 38 항에 있어서,상기 수퍼스트레이트층은 사파이어, SiC, GaN 및 Gap로 이루어진 그룹으로부터 선택되는 재료로 형성되는발광 디바이스.
- 제 38 항에 있어서,상기 광학 소자는 ZnS 및 사파이어 중 하나로를 포함하고,상기 수퍼스트레이트는 SiC, GaN 및 사파이어 중 하나를 포함하며,상기 반도체층은 Ⅲ족-질화물 반도체를 포함하는발광 디바이스.
- 제 41 항에 있어서,전기적으로 접속되어 상기 액티브 영역 양단에 전압을 인가하며, 상기 스택의 동일면 상에 위치하는 제 1 및 제 2 컨택트를 더 포함하는발광 디바이스.
- 제 38 항에 있어서,상기 광학 소자는 GaP로부터 형성되고,상기 수퍼스트레이트는 Ⅲ족-인화물 재료로부터 형성되며,상기 반도체층은 Ⅲ족-인화물 반도체를 포함하는발광 디바이스.
- 제 43 항에 있어서,전기적으로 접속되어 상기 액티브 영역 양단에 전압을 인가하며 상기 스택의 동일면 상에 위치하는 제 1 및 제 2 컨택트를 더 포함하는발광 디바이스.
- 액티브 영역을 포함하는 반도체 층을 포함하는 층의 스택을 갖는 발광 디바이스에 투명 광학 소자를 접착하는 방법에 있어서,상기 광학 소자 및 상기 스택의 온도를 상승시키는 단계와,상기 광학 소자 및 상기 스택에 압력을 함께 가하여 상기 광학 소자를 상기 스택에 접착하는 단계를 포함하는 투명 광학 소자 접착 방법.
- 제 45 항에 있어서,상기 온도는 약 500℃ 미만까지 상승되는투명 광학 소자 접착 방법.
- 제 45 항에 있어서,하나 이상의 고확산 재료(high diffusivity material)를 상기 광학 소자와 상기 스택 사이에 배치하는 단계를 더 포함하는투명 광학 소자 접착 방법.
- 제 45 항에 있어서,상기 광학 소자와 상기 스택 중 적어도 하나를 고 확산 재료로 도핑하는 단계를 더 포함하는투명 광학 소자 접착 방법.
- 제 45 항에 있어서,상기 광학 소자와 상기 스택의 표면 사이에 투명 접착 재료 층을 배치하는 단계를 더 포함하는투명 광학 소자 접착 방법.
- 제 49 항에 있어서,상기 접착 재료는 광학 유리를 포함하고,상기 온도는 약 상기 광학 유리의 변형점(strain point) 온도까지 상승되는투명 광학 소자 접착 방법.
- 액티브 영역을 포함하는 반도체층을 포함하는 층의 스택을 갖는 발광 디바이스에 있어서,상기 스택에 접착되는 광학 소자와,전기적으로 접속되어 상기 액티브 영역 양단에 전압을 인가하는 제 1 및 제 2 컨택트를 포함하되,상기 층의 스택은 적어도 하나의 Ⅲ족-인화물 반도체를 포함하고,상기 제 1 및 제 2 컨택트는 상기 스택의 동일면 상에 위치하는발광 디바이스.
- 제 51 항에 있어서,상기 광학 소자는 GaP를 포함하는발광 디바이스.
- 액티브 영역을 포함하는 반도체층을 포함하는 층의 스택을 갖는 발광 디바이스에 있어서,상기 스택에 접착되는 광학 소자와,전기적으로 접속되어 상기 액티브 영역 양단에 전압을 인가하는 제 1 및 제 2 컨택트를 포함하되,상기 층의 스택은 적어도 하나의 Ⅲ족-질화물 반도체층을 포함하고,상기 제 1 및 제 2 컨택트는 상기 스택의 동일면 상에 위치하는발광 디바이스.
- 제 53 항에 있어서,상기 광학 소자는 ZnS 및 사파이어 중 하나를 포함하는발광 디바이스.
- 반도체층 및 집광기를 포함하는 층의 스택을 포함하는 발광 디바이스 제조 방법에 있어서,투명 광학 소자 재료 블록을 상기 반도체층을 포함하는 층의 스택 상에 접착하는 단계와,상기 투명 광학 소자 재료 블록을 상기 집광기집광기형성하는 단계를 포함하는발광 디바이스 제조 방법.
- 제 55 항에 있어서,상기 접착 단계는상기 광학 소자 및 상기 스택의 온도를 상승시키는 단계와,상기 광학 소자 및 상기 스택을 함께 누르도록 압력을 가하는 단계를 포함하는 발광 디바이스 제조 방법.
- 제 55 항에 있어서,상기 형성 단계는 에칭 기법을 포함하는발광 디바이스 제조 방법.
- 제 57 항에 있어서,상기 에칭 기법은 건식 에칭 또는 습식 에칭 중 하나로부터 선택되는발광 디바이스 제조 방법.
- 상기 건식 에칭은 플라즈마 에칭(plasma etching), 반응성 에칭(reactive etching) 및 화학 지원 이온 빔 에칭(chemical-assisted ion beam etching) 중 하나인발광 디바이스 제조 방법.
- 제 55 항에 있어서,상기 형성 단계는 리소그래피 기법을 포함하는발광 디바이스 제조 방법.
- 제 60 항에 있어서,상기 리소그래피 기법은 포토리소그래피, 전자 빔 리소그래피, 이온 빔 리소그래피, X 레이 리소그래피 및 홀로그래픽 리소그래피로 이루어진 그룹으로부터 선택되는발광 디바이스 제조 방법.
- 제 55 항에 있어서,상기 형성 단계는 밀링(milling), 집중 이온 빔 밀링(focused ion beam milling), 애블레이팅(ablating), 머시닝(machining), 절단(sawing), 스탬핑(stamping) 및 스크라이빙(scribing)으로 이루어진 그룹으로부터 선택되는 기계적 기법을 포함하는발광 디바이스 제조 방법.
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-
2001
- 2001-06-12 US US09/880,204 patent/US7064355B2/en not_active Expired - Lifetime
- 2001-10-19 EP EP01204002.8A patent/EP1267420B1/en not_active Expired - Lifetime
- 2001-11-02 KR KR1020010068054A patent/KR100941639B1/ko active IP Right Grant
-
2002
- 2002-06-07 TW TW091112360A patent/TW569469B/zh not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US7572036B2 (en) | 2004-10-18 | 2009-08-11 | Samsung Electronics Co., Ltd. | Light emitting diode and lens for the same |
US7963680B2 (en) | 2004-10-18 | 2011-06-21 | Samsung Electronics Co., Ltd. | Light emitting diode and lens for the same |
US8696175B2 (en) | 2004-10-18 | 2014-04-15 | Samsung Display Co., Ltd. | Light emitting diode and lens for the same |
US9200778B2 (en) | 2004-10-18 | 2015-12-01 | Samsung Display Co., Ltd. | Light emitting diode and lens for the same |
Also Published As
Publication number | Publication date |
---|---|
EP1267420A3 (en) | 2009-04-22 |
US20020030194A1 (en) | 2002-03-14 |
KR100941639B1 (ko) | 2010-02-11 |
TW569469B (en) | 2004-01-01 |
EP1267420A2 (en) | 2002-12-18 |
EP1267420B1 (en) | 2019-04-10 |
US7064355B2 (en) | 2006-06-20 |
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