KR20050040161A - 전극 구조체 및 이를 구비하는 반도체 발광 소자 - Google Patents
전극 구조체 및 이를 구비하는 반도체 발광 소자 Download PDFInfo
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- KR20050040161A KR20050040161A KR1020030075220A KR20030075220A KR20050040161A KR 20050040161 A KR20050040161 A KR 20050040161A KR 1020030075220 A KR1020030075220 A KR 1020030075220A KR 20030075220 A KR20030075220 A KR 20030075220A KR 20050040161 A KR20050040161 A KR 20050040161A
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- Prior art keywords
- layer
- emitting device
- light emitting
- semiconductor light
- injection layer
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 claims abstract description 45
- 239000002184 metal Substances 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 43
- 239000007924 injection Substances 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000002310 reflectometry Methods 0.000 claims abstract description 9
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 34
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 17
- 229910052759 nickel Inorganic materials 0.000 claims description 16
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 13
- 229910052709 silver Inorganic materials 0.000 claims description 13
- 239000004332 silver Substances 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052763 palladium Inorganic materials 0.000 claims description 8
- 229910052594 sapphire Inorganic materials 0.000 claims description 7
- 239000010980 sapphire Substances 0.000 claims description 7
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- 230000031700 light absorption Effects 0.000 abstract description 2
- 150000004767 nitrides Chemical class 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 nitride compound Chemical class 0.000 description 1
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- 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 (17)
- 투명 기판;상기 투명 기판 상에 형성된 전자 주입층;상기 전자 주입층의 제 1 영역 상에 형성된 활성층;상기 활성층 상에 형성된 정공 주입층;상기 정공 주입층 상에 형성되며 높은 반사율과 낮은 접촉 저항을 동시에 제공할 수 있는 제 1 전극 구조체;상기 전자 주입층의 제 2 영역 상에 형성된 제 2 전극 구조체; 및상기 제 1 및 상기 제 2 전극 구조체와 전기적으로 결합된 회로 기판:을 포함하는 것을 특징으로 하는 반도체 발광 소자.
- 제 1 항에 있어서,상기 제 1 전극 구조체가:접촉 저항이 낮은 니켈, 팔라듐, 백금 또는 ITO를 포함하는 그룹 중 선택된 어느 하나로 이루어진 컨택 메탈 구조체; 및알루미늄 박막 또는 실버를 포함하는 반사층:을 포함하는 것을 특징으로 하는 반도체 발광 소자.
- 제 2 항에 있어서,상기 컨택 메탈 구조체가 아일런드 형으로 형성되는 것을 특징으로 하는 반도체 발광 소자.
- 제 2 항에 있어서,상기 컨택 메탈 구조체가 메시 형으로 형성된 것을 특징으로 하는 반도체 발광 소자.
- 제 3 항 또는 제 4 항에 있어서,상기 컨택 메탈 구조체의 면적이 상기 반사층의 면적에 대비하여 1 % 내지 90 %의 비율이 되는 것을 특징으로 하는 반도체 발광 소자.
- 제 5 항에 있어서,상기 컨택 메탈 구조체의 두께가 200 nm 이하인 것을 특징으로 하는 반도체 발광 소자.
- 제 1 항에 있어서,상기 반사층이 반사도가 높은 알루미늄(Al) 또는 실버(Ag)로 이루어진 것을 특징으로 하는 반도체 발광 소자.
- 제 1 항에 있어서,상기 투명 기판이 사파이어로 이루어진 것을 특징으로 하는 반도체 발광 소자.
- 제 1 항에 있어서,상기 정공 주입층이 p-형 GaN으로 이루어진 것을 특징으로 하는 반도체 발광 소자.
- 활성층 및 상기 활성층의 일면에 형성된 정공 주입층을 구비하는 반도체 발광 소자에 사용되는 전극 구조체에 있어서,상기 활성층과 마주하도록 상기 정공 주입층의 일면에 형성되며 접촉 저항이 낮은 니켈, 팔라듐, 백금 또는 ITO를 포함하는 그룹 중 선택된 어느 하나로 이루어진 컨택 메탈 구조체; 및상기 컨택 메탈 구조체 상에 형성되는 반사층:을 포함하는 것을 특징으로 하는 전극 구조체.
- 제 10 항에 있어서,상기 컨택 메탈 구조체가 아일런드 형으로 형성되는 것을 특징으로 하는 반도체 발광 소장에 사용되는 전극 구조체.
- 제 10 항에 있어서,상기 컨택 메탈 구조체가 메시 형으로 형성된 것을 특징으로 하는 반도체 발광 소자에 사용되는 전극 구조체.
- 제 11 항 또는 제 12 항에 있어서,상기 컨택 메탈 구조체의 면적이 상기 반사층의 면적에 대비하여 1 % 내지 90 %의 비율이 되는 것을 특징으로 하는 반도체 발광소자에 사용되는 전극 구조체.
- 제 13 항에 있어서,상기 컨택 메탈 구조체의 두께가 대략 200 nm 이하인 것을 특징으로 하는 반도체 발광소자에 사용되는 전극 구조체.
- 제 10 항에 있어서,상기 반사층이 반사도가 높은 알루미늄 또는 실버(Ag)으로 이루어진 것을 특징으로 하는 반도체 발광 소자에 사용되는 전극 구조체.
- 제 10 항에 있어서,상기 정공 주입층이 p-형 GaN으로 이루어진 것을 특징으로 하는 반도체 발광 소자에 사용되는 전극 구조체.
- 제 10 항에 있어서,상기 전자 주입층이 두꺼운 영역과 얇은 영역으로 형성되며, 상기 전극 구조체는 p-형 전극 구조체로서 두꺼운 영역 상에 형성되는 것을 특징으로 하는 반도체 발광 소장에 사용되는 전극 구조체.
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US10/852,151 US20050087755A1 (en) | 2003-10-27 | 2004-05-25 | Electrode structure, and semiconductor light-emitting device having the same |
CNB2004100484434A CN100428506C (zh) | 2003-10-27 | 2004-06-10 | 电极结构以及具有该电极结构的半导体发光器件 |
JP2004265471A JP2005129907A (ja) | 2003-10-27 | 2004-09-13 | 電極構造体およびそれを具備する半導体発光素子 |
US11/412,838 US7335916B2 (en) | 2003-10-27 | 2006-04-28 | Electrode structure, and semiconductor light-emitting device having the same |
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US10043950B2 (en) | 2015-11-27 | 2018-08-07 | Lextar Electronics Corporation | Semiconductor light-emitting structure with metal layer and distributed bragg reflector and semiconductor package structure thereof |
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CN1612367A (zh) | 2005-05-04 |
US20050087755A1 (en) | 2005-04-28 |
CN100428506C (zh) | 2008-10-22 |
KR100799857B1 (ko) | 2008-01-31 |
US7335916B2 (en) | 2008-02-26 |
US20060255342A1 (en) | 2006-11-16 |
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