KR100660152B1 - 질화물반도체소자 - Google Patents
질화물반도체소자 Download PDFInfo
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- KR100660152B1 KR100660152B1 KR1020067017140A KR20067017140A KR100660152B1 KR 100660152 B1 KR100660152 B1 KR 100660152B1 KR 1020067017140 A KR1020067017140 A KR 1020067017140A KR 20067017140 A KR20067017140 A KR 20067017140A KR 100660152 B1 KR100660152 B1 KR 100660152B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 776
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 671
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
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- 150000002431 hydrogen Chemical class 0.000 description 1
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- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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- H10H20/824—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
- H10H20/825—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN
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- H01S5/00—Semiconductor lasers
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Abstract
Description
Claims (19)
- 질화물 반도체층을 가지는 n도전측의 반도체 영역과, 질화물 반도체층을 가지는 p도전측의 반도체 영역의 사이에, 질화물 반도체의 활성층을 가지는 질화물 반도체 발광소자에 있어서,상기 n도전측의 반도체 영역에, 제1 질화물 반도체층과, 상기 제1 질화물 반도체층보다 밴드갭 에너지가 작고, n형 불순물 농도가 낮은 제2 질화물 반도체층을 적층한 구조를 가지고,상기 제1 질화물 반도체층의 n형 불순물이 상기 제2 질화물 반도체층에 근접하는 부분에서 낮고, 이 근접부분으로부터 떨어진 부분에서 높은 농도인 질화물 반도체 발광소자.
- 제 1 항에 있어서,상기 발광소자가 기판 위에, 상기 n도전측의 반도체 영역, 활성층, p도전측의 반도체 영역을 이 순서로 가지고,상기 n도전측의 반도체 영역에 음전극이 설치되는 n측 컨택트층을 가지며,상기 적층구조가 상기 기판과 상기 n측 컨택트층 사이에 설치되어 있는 질화물 반도체 발광소자.
- 제 1 항에 있어서,상기 발광소자가 기판 위에, 상기 n도전측의 반도체 영역, 활성층, p도전측의 반도체 영역을 이 순서로 가지고,상기 n도전측의 반도체 영역에 음전극이 설치되는 n측 컨택트층을 가지며,상기 적층구조가 상기 활성층과 상기 n측 컨택트층 사이에 설치되어 있는 질화물 반도체 발광소자.
- 제 1 항에 있어서,상기 적층구조에서 상기 제1 질화물 반도체층과 제2 질화물 반도체층의 적어도 한 쪽 막두께가 100Å 이하인 질화물 반도체 발광소자.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 적층구조에서 상기 제1 질화물 반도체층의 조성이 AlyGa1 -yN(0<y<1)이고, 상기 제2 질화물 반도체층의 조성이 AlxGa1 -xN(0<x<1, x<y) 또는 GaN인 질화물 반도체 발광소자.
- 제 5 항에 있어서,상기 제2 질화물 반도체층이 언도프인 질화물 반도체 발광소자.
- 제 6 항에 있어서,상기 제1 질화물 반도체층의 근접부분이 언도프인 질화물 반도체 발광소자.
- 질화물 반도체층을 가지는 n도전측의 반도체 영역과, 질화물 반도체층을 가지는 p도전측의 반도체 영역의 사이에, 질화물 반도체의 활성층을 가지는 질화물 반도체 발광소자에 있어서,상기 p도전측의 반도체 영역에, 제3 질화물 반도체층과, 상기 제3 질화물 반도체층보다 밴드갭 에너지가 작고, p형 불순물 농도가 낮은 제4 질화물 반도체층을 적층한 구조를 가지고,상기 제3 질화물 반도체층의 p형 불순물이 상기 제4 질화물 반도체층에 근접하는 부분에서 낮고, 이 근접부분으로부터 떨어진 부분에서 높은 농도인 질화물 반도체 발광소자.
- 제 7 항에 있어서,상기 발광소자가 기판 위에, 상기 n도전측의 반도체 영역, 활성층, p도전측의 반도체 영역을 이 순서로 가지고,상기 p도전측의 반도체 영역에 전극이 설치되는 p측 컨택트층을 가지며,상기 적층구조가 상기 활성층과 상기 p측 컨택트층 사이에 설치되어 있는 질화물 반도체 발광소자.
- 제 7 항에 있어서,상기 적층구조에서 상기 제3 질화물 반도체층과 제4 질화물 반도체층의 적어도 한 쪽 막두께가 100Å 이하인 질화물 반도체 발광소자.
- 제 7 항 내지 제 9 항 중 어느 한 항에 있어서,상기 적층구조에서 상기 제3 질화물 반도체층의 조성이 AlyGa1 -yN(0<y<1)이고, 상기 제4 질화물 반도체층의 조성이 AlxGa1 -xN(0<x<1, x<y) 또는 GaN인 질화물 반도체 발광소자.
- 제 7 항 내지 제 9 항 중 어느 한 항에 있어서,상기 적층구조에서 상기 제3 질화물 반도체층의 조성이 GaN이고, 상기 제4 질화물 반도체층의 조성이 InxGa1 -xN(0<x<1)인 질화물 반도체 발광소자.
- 제 11 항에 있어서,상기 제4 질화물 반도체층이 언도프인 질화물 반도체 발광소자.
- 제 12 항에 있어서,상기 제3 질화물 반도체층의 근접부분이 언도프인 질화물 반도체 발광소자.
- 질화물 반도체층을 가지는 n도전측의 반도체 영역과, 질화물 반도체층을 가 지는 p도전측의 반도체 영역의 사이에, 질화물 반도체의 활성층을 가지는 질화물 반도체 발광소자에 있어서,상기 n도전측의 반도체 영역에, 제1 질화물 반도체층과, 상기 제1 질화물 반도체층보다 밴드갭 에너지가 작고, n형 불순물 농도가 낮은 제2 질화물 반도체층을 적층한 구조를 가지고,상기 제1 질화물 반도체층의 n형 불순물이 상기 제2 질화물 반도체층에 근접하는 부분에서 낮고, 이 근접부분으로부터 떨어진 부분에서 높은 농도이며,상기 p도전측의 반도체 영역에, 제3 질화물 반도체층과, 상기 제3 질화물 반도체층보다 밴드갭 에너지가 작고, p형 불순물 농도가 낮은 제4 질화물 반도체층을 적층한 구조를 가지며,상기 제3 질화물 반도체층의 p형 불순물이 상기 제4 질화물 반도체층에 근접하는 부분에서 낮고, 이 근접부분으로부터 떨어진 부분에서 높은 농도인 질화물 반도체 발광소자.
- 제 15 항에 있어서,상기 발광소자가 기판 위에, 상기 n도전측의 반도체 영역, 활성층, p도전측의 반도체 영역을 이 순서로 가지고,상기 n도전측의 반도체 영역에 음전극이 설치되는 n측 컨택트층을 가지고,상기 n도전측의 적층구조가 상기 기판과 상기 n측 컨택트층의 사이, 또는 상기 활성층과 상기 n측 컨택트층의 사이에 설치되고,상기 p도전측의 반도체 영역에 전극이 설치되는 p측 컨택트층을 가지고,상기 p도전측의 적층구조가 상기 활성층과 상기 p측 컨택트층의 사이에 설치되어 있는 질화물 반도체 발광소자.
- 제 15 항에 있어서,상기 제1 질화물 반도체층과 제2 질화물 반도체층의 적층구조, 또는 상기 제3 질화물 반도체층과 제4 질화물 반도체층의 적층구조에 있어서, 적어도 한 쪽 층의 막두께가 100Å 이하인 질화물 반도체 발광소자.
- 제 15 항 내지 제 17 항 중 어느 한 항에 있어서,상기 적층구조에 있어서, 상기 제1 질화물 반도체층의 조성이 AlyGa1 -yN(0<y<1)이고, 상기 제2 질화물 반도체층의 조성이 AlxGa1 -xN(0<x<1, x<y) 또는 GaN이며,상기 적층구조에 있어서, 상기 제3 질화물 반도체층의 조성이 GaN이고, 상기 제4 질화물 반도체층의 조성이 InxGa1 -xN(0<x<1)인 질화물 반도체 발광소자.
- 제 18 항에 있어서,상기 제2, 제4 질화물 반도체층이 언도프이며, 상기 제1, 제3 질화물 반도체층의 근접부분이 언도프인 질화물 반도체 발광소자.
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JPJP-P-1997-00102793 | 1997-04-03 | ||
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JP13421097 | 1997-05-26 | ||
JPJP-P-1997-00134210 | 1997-05-26 | ||
JP24434297 | 1997-09-09 | ||
JPJP-P-1997-00244342 | 1997-09-09 | ||
JP27443897 | 1997-10-07 | ||
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JPJP-P-1997-00311272 | 1997-10-27 | ||
JP31127297A JP3478090B2 (ja) | 1997-05-26 | 1997-10-27 | 窒化物半導体素子 |
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