KR101457204B1 - 발광 다이오드 및 그 제조방법 - Google Patents
발광 다이오드 및 그 제조방법 Download PDFInfo
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- KR101457204B1 KR101457204B1 KR1020080010784A KR20080010784A KR101457204B1 KR 101457204 B1 KR101457204 B1 KR 101457204B1 KR 1020080010784 A KR1020080010784 A KR 1020080010784A KR 20080010784 A KR20080010784 A KR 20080010784A KR 101457204 B1 KR101457204 B1 KR 101457204B1
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- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 114
- 150000004767 nitrides Chemical class 0.000 claims description 70
- 238000009832 plasma treatment Methods 0.000 claims description 28
- 238000005530 etching Methods 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 229920002120 photoresistant polymer Polymers 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 238000001312 dry etching Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims 2
- 229910052750 molybdenum Inorganic materials 0.000 claims 2
- 230000003068 static effect Effects 0.000 abstract description 13
- 229910052594 sapphire Inorganic materials 0.000 description 13
- 239000010980 sapphire Substances 0.000 description 13
- 230000005611 electricity Effects 0.000 description 12
- 238000004381 surface treatment Methods 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910002601 GaN Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000002407 reforming Methods 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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Abstract
Description
Claims (27)
- 기판 위에 n형 반도체 층을 형성하는 단계;상기 n형 반도체층 위에 활성층을 형성하는 단계;활성층 위에 p형 반도체층을 형성하는 단계;상기 n형 반도체층을 식각하는 단계;상기 p형 반도체층 위에 p형 전극을 형성하는 단계;플라즈마 처리를 통해 반도체층의 전기적 특성을 변화시키는 플라즈마 처리 단계; 및식각된 상기 n형 반도체층과 p형 전극이 형성되지 않은 상기 p형 반도체층의 일부에 걸쳐 n형 전극을 형성하는 단계를 포함하는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 식각 단계는 가열에 의해 원형으로 재형성화(thermal reflow)된 포토레지스트를 식각 마스크로 이용하여 건식 식각함으로써, 식각면이 경사면으로 형성되는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 삭제
- 삭제
- 청구항 1에 있어서, 상기 플라즈마 처리하는 단계후, 상기 n형 전극이 형성될 n형 반도체층, 활성층을 포함하는 경사면, p형 반도체층 일부에 절연막을 형성시키는 단계를 더 포함하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 n형 반도체층, 상기 활성층, 상기 p형 반도체층은 질화물계 반도체로 구성되는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 플라즈마 처리 단계의 가스는 N, NO, NH, He, Ne, Ar로 구성되는 그룹 중에서 선택된 어느 하나 또는 2 이상의 조합으로 구성된 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 플라즈마 처리 단계중 인가되는 플라즈마 파워에 의해 표면 처리된 질화물층의 전기 특성이 변하는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 플라즈마 처리 단계중 플라즈마 처리 시간에 의해 표면 처리된 질화물층의 전기 특성이 변하는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 플라즈마 처리 단계중 인가되는 플라즈마 파워와 처리 시간에 의해 표면 처리된 질화물층의 전기 특성이 변하는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 n형 전극은 Ti, Al, Pt, Pd, Au, Cr, Fe, Cu, Mo를 포함하는 그룹 중에서 선택된 어느 하나 또는 2 이상의 조합인 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 n형 전극의 형성에 의해 상기 활성층과 병렬 접속되는 전류 통로를 형성하게 되는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1에 있어서, 상기 n형 전극을 형성하는 단계이후, 상기 p형 전극 위에 반사판을 형성하고, 상기 반사판과 상기 n형 전극을 서브 마운트에 부착하여 플립칩 형태로 구성하는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 청구항 1 또는 2에 있어서, 반도체층과 접촉되는 상기 n형 전극의 접촉 면적의 크기를 변화시켜 상기 n형 전극과 반도체층과의 접촉 저항을 변화시키는 단계를 더 포함하는 것을 특징으로 하는 발광 다이오드의 제조방법.
- 기판;상기 기판 위에 형성된 n형 반도체층;상기 n형 반도체층 위에 형성된 활성층;상기 활성층 위에 형성된 p형 반도체층;상기 p형 반도체층 위에 형성된 p형 전극;식각으로 노출된 상기 n형 반도체층과 상기 p형 반도체층의 일부에 걸쳐 형성된 n형 전극; 을 포함하고,상기 n형 전극은 플라즈마 처리되어 전기적 특성이 변화된 반도체층 상에 형성된 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서,상기 노출된 n형 반도체층과 상기 p형 반도체층은 식각 경사면을 갖고, 상기 경사면으로 활성층이 노출된 것을 특징으로 하는 발광 다이오드.
- 삭제
- 삭제
- 청구항 15에 있어서, 상기 n형 반도체층, 상기 활성층, 상기 p형 반도체층은 질화물계 반도체인 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서, 상기 플라즈마 처리의 가스는 N, NO, NH, He, Ne, Ar로 구성되는 그룹 중에서 선택된 어느 하나 또는 2 이상의 조합인 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서, 상기 플라즈마 처리는 플라즈마 파워에 의해 표면 처리된 질화물층의 전기 특성이 변하는 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서, 상기 플라즈마 처리는 플라즈마 처리 시간에 의해 표면 처리된 질화물층의 전기 특성이 변하는 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서, 상기 플라즈마 처리는 플라즈마 파워와 처리 시간에 의해 표면 처리된 질화물층의 전기 특성이 변하는 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서, 상기 n형 전극은 Ti, Al, Pt, Pd, Au, Cr, Fe, Cu, Mo를 포함하는 그룹 중에서 선택된 어느 하나 또는 2 이상의 조합으로 구성되는 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서, 상기 n형 전극의 형성에 의해 상기 활성층과 병렬 접속되는 전류 통로를 포함하는 것을 특징으로 하는 발광 다이오드.
- 청구항 15에 있어서, 상기 p형 전극 위에 반사판을 더 포함하고, 상기 반사판과 상기 n형 전극을 서브마운트에 부착하는 것을 특징으로 하는 발광 다이오드.
- 청구항 15 또는 16에 있어서, 반도체층과 접촉되는 상기 n형 전극의 접촉 면적 크기에 의해 상기 n형 전극과 반도체층과의 접촉 저항이 결정되는 것을 특징으로 하는 발광 다이오드.
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US12/173,383 US8049229B2 (en) | 2008-02-01 | 2008-07-15 | Light emitting diode and method for manufacturing the same |
JP2008188716A JP5575378B2 (ja) | 2008-02-01 | 2008-07-22 | 発光ダイオード及びその製造方法 |
TW097129539A TWI381552B (zh) | 2008-02-01 | 2008-08-04 | 發光二極體以及其製造方法 |
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US8441018B2 (en) * | 2007-08-16 | 2013-05-14 | The Trustees Of Columbia University In The City Of New York | Direct bandgap substrates and methods of making and using |
KR101497953B1 (ko) | 2008-10-01 | 2015-03-05 | 삼성전자 주식회사 | 광추출 효율이 향상된 발광 소자, 이를 포함하는 발광 장치, 상기 발광 소자 및 발광 장치의 제조 방법 |
KR101654340B1 (ko) * | 2009-12-28 | 2016-09-06 | 서울바이오시스 주식회사 | 발광 다이오드 |
JP5281612B2 (ja) * | 2010-05-26 | 2013-09-04 | 株式会社東芝 | 半導体発光装置及びその製造方法 |
KR101139915B1 (ko) * | 2010-06-08 | 2012-04-30 | 부경대학교 산학협력단 | 내정전성 발광소자 및 그 제조방법 |
TWI515923B (zh) * | 2011-08-30 | 2016-01-01 | 晶元光電股份有限公司 | 發光元件 |
TWI578565B (zh) * | 2013-09-17 | 2017-04-11 | 隆達電子股份有限公司 | 發光二極體 |
KR102188993B1 (ko) | 2013-11-15 | 2020-12-10 | 삼성디스플레이 주식회사 | 광원 유닛 및 이를 포함하는 백라이트 어셈블리 |
JP7161096B2 (ja) * | 2018-06-29 | 2022-10-26 | 日亜化学工業株式会社 | 半導体素子の製造方法 |
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US8049229B2 (en) | 2011-11-01 |
TWI381552B (zh) | 2013-01-01 |
JP5575378B2 (ja) | 2014-08-20 |
TW200935626A (en) | 2009-08-16 |
JP2009188370A (ja) | 2009-08-20 |
US20090194779A1 (en) | 2009-08-06 |
KR20090084540A (ko) | 2009-08-05 |
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