KR20080070742A - 질화갈륨계 화합물 반도체 발광소자 - Google Patents
질화갈륨계 화합물 반도체 발광소자 Download PDFInfo
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- KR20080070742A KR20080070742A KR1020087014148A KR20087014148A KR20080070742A KR 20080070742 A KR20080070742 A KR 20080070742A KR 1020087014148 A KR1020087014148 A KR 1020087014148A KR 20087014148 A KR20087014148 A KR 20087014148A KR 20080070742 A KR20080070742 A KR 20080070742A
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- gallium nitride
- nitride compound
- light emitting
- compound semiconductor
- emitting device
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- 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
- H01L33/22—Roughened surfaces, e.g. at the interface between epitaxial layers
-
- 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
- H01L33/38—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 with a particular shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/0242—Crystalline insulating materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02538—Group 13/15 materials
- H01L21/0254—Nitrides
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/0257—Doping during depositing
- H01L21/02573—Conductivity type
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/0262—Reduction or decomposition of gaseous compounds, e.g. CVD
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- 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
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
- H01L33/32—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table containing nitrogen
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Abstract
Description
Claims (20)
- 기판 상에 질화갈륨계 화합물 반도체로 이루어진 n형 반도체층, 발광층 및 p형 반도체층이 이 순서로 적층되고, 정극 및 부극이 각각 p형 반도체층 및 n형 반도체층에 접해서 설치된 발광소자에 있어서:상기 정극은 개구부를 갖는 정극이고, 상기 개구부에 있어서의 p형 반도체층 표면의 적어도 일부가 구상의 입상물에서 유래하는 요철면인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 기판 상에 질화갈륨계 화합물 반도체로 이루어진 n형 반도체층, 발광층 및 p형 반도체층이 이 순서로 적층되고, 정극 및 부극이 각각 p형 반도체층 및 n형 반도체층에 접해서 설치된 발광소자에 있어서:상기 정극은 개구부를 갖는 정극이고, 상기 개구부에 있어서의 p형 반도체층 표면의 적어도 일부는 선단부가 반구상의 요철면인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 기판 상에 질화갈륨계 화합물 반도체로 이루어진 n형 반도체층, 발광층 및 p형 반도체층이 이 순서로 적층되고, 정극 및 부극이 각각 p형 반도체층 및 n형 반도체층에 접해서 설치된 발광소자에 있어서:상기 정극은 개구부를 갖는 정극이고, 상기 개구부에 있어서의 p형 반도체층 표면의 적어도 일부는 선단부가 곡면으로 구성되는 요철면인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 개구부를 갖는 정극이 격자상 또는 빗형상인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 4 항에 있어서, 상기 격자의 잔교 또는 빗살의 폭이 1μ~50μ인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 4 항에 있어서, 상기 격자의 잔교 또는 빗살의 간격이 1μ~50μ인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 요철면에 있어서의 볼록부(입상물)의 직경이 0.01~3㎛인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 요철면의 상단의 높이가 상기 부극 형성면으로부터 0.1~2㎛인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 8 항에 있어서, 상기 요철면의 상단의 높이가 상기 p형 반도체층 표면과 동등한 높이인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 요철면에 있어서의 볼록부의 높이가 0.01~1㎛인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 요철면에 있어서의 볼록부(입상물)의 밀도가 1×105개/mm2~1×108개/mm2인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 요철면이 발광소자의 네 둘레에도 존재하는 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 요철면이 상기 정극과 부극 사이에도 존재하는 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 하기 (1)~(4)의 공정을 포함하여 이루어진 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자의 제조방법.(1) 기판 상에 질화갈륨계 화합물 반도체로 이루어진 n형 반도체층, 발광층 및 p형 반도체층을 이 순서로 적층하는 공정.(2) 상기 p형 반도체층 상에 개구부를 갖는 정극을 형성하는 공정.(3) 상기 개구부에 있어서의 p형 반도체층 상에 금속 미립자로 이루어진 마스크를 형성하는 공정.(4) 상기 마스크 상으로부터 질화갈륨계 화합물 반도체를 드라이 에칭하는 공정.
- 제 14 항에 있어서, 상기 공정 (3)은 p형 반도체층 상에 금속 박막을 형성하는 공정 및 그 후의 열처리 공정으로 이루어진 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자의 제조방법.
- 제 14 항에 있어서, 상기 금속 미립자는 Ni, Au, Sn 및 Ge로 이루어진 군에서 선택되는 금속 또는 적어도 이들 금속 중 1종을 함유하는 저융점 합금인 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자의 제조방법.
- 제 14 항에 기재된 제조방법에 의해 제조된 것을 특징으로 하는 질화갈륨계 화합물 반도체 발광소자.
- 제 1 항 내지 제 3 항, 및 제 17 항 중 어느 한 항에 기재된 질화갈륨계 화 합물 반도체 발광소자로 이루어진 것을 특징으로 하는 램프.
- 제 18 항에 기재된 램프가 조립되어 있는 것을 특징으로 하는 전자기기.
- 제 19 항에 기재된 전자기기가 조립되어 있는 것을 특징으로 하는 기계장치.
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KR20190122271A (ko) * | 2012-01-10 | 2019-10-29 | 루미리즈 홀딩 비.브이. | 선택적인 영역 조면화에 의해 제어되는 led 광 출력 |
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