KR102212781B1 - 발광소자 및 조명시스템 - Google Patents
발광소자 및 조명시스템 Download PDFInfo
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- KR102212781B1 KR102212781B1 KR1020140096438A KR20140096438A KR102212781B1 KR 102212781 B1 KR102212781 B1 KR 102212781B1 KR 1020140096438 A KR1020140096438 A KR 1020140096438A KR 20140096438 A KR20140096438 A KR 20140096438A KR 102212781 B1 KR102212781 B1 KR 102212781B1
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- 239000004065 semiconductor Substances 0.000 claims abstract description 45
- 239000000203 mixture Substances 0.000 claims description 20
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052738 indium Inorganic materials 0.000 claims description 13
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical group [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000002347 injection Methods 0.000 description 16
- 239000007924 injection Substances 0.000 description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 12
- 238000010586 diagram Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 239000000758 substrate Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000006798 recombination Effects 0.000 description 8
- 238000005215 recombination Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- 239000002019 doping agent Substances 0.000 description 5
- 229910002704 AlGaN Inorganic materials 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- VRIVJOXICYMTAG-IYEMJOQQSA-L iron(ii) gluconate Chemical compound [Fe+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O VRIVJOXICYMTAG-IYEMJOQQSA-L 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 229910019897 RuOx Inorganic materials 0.000 description 2
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910018229 Al—Ga Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 229910005540 GaP Inorganic materials 0.000 description 1
- DZLPZFLXRVRDAE-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[Al+3].[Zn++].[In+3] Chemical compound [O--].[O--].[O--].[O--].[Al+3].[Zn++].[In+3] DZLPZFLXRVRDAE-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- YZZNJYQZJKSEER-UHFFFAOYSA-N gallium tin Chemical compound [Ga].[Sn] YZZNJYQZJKSEER-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- HRHKULZDDYWVBE-UHFFFAOYSA-N indium;oxozinc;tin Chemical compound [In].[Sn].[Zn]=O HRHKULZDDYWVBE-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N nickel(II) oxide Inorganic materials [Ni]=O GNRSAWUEBMWBQH-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
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 1
- IBEFSUTVZWZJEL-UHFFFAOYSA-N trimethylindium Chemical compound C[In](C)C IBEFSUTVZWZJEL-UHFFFAOYSA-N 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/811—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions
- H10H20/812—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions within the light-emitting regions, e.g. having quantum confinement structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/815—Bodies having stress relaxation structures, e.g. buffer layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/816—Bodies having carrier transport control structures, e.g. highly-doped semiconductor layers or current-blocking structures
- H10H20/8162—Current-blocking structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Led Devices (AREA)
Abstract
실시예에 따른 발광소자는 제1 도전형 반도체층; 상기 제1 도전형 반도체층 상에 활성층; 상기 활성층 상에 AlzGa1-zN층(단, 0≤z≤1);을 포함할 수 있다.
실시예는 상기 활성층과 AlzGa1-zN층 사이에 InxAlyGa1-x-yN 계열 초격자층(단, 0≤x≤1, 0≤y≤1)을 포함할 수 있다.
Description
도 2는 제1 실시예에 따른 발광소자의 밴드 다이어그램의 예시도.
도 3은 제2 실시예에 따른 발광소자의 밴드 다이어그램의 예시도.
도 4는 제3 실시예에 따른 발광소자의 밴드 다이어그램의 예시도.
도 5는 실시예에 따른 발광소자와 비교예의 내부 양자효율 데이터.
도 6은 실시예에 따른 발광소자와 비교예의 동작전압 데이터.
도 7은 실시예에 따른 발광소자와 비교예의 적분구 데이터이다.
도 8 내지 도 12는 실시예에 따른 발광소자의 제조공정도.
칩에서의 광도(Po) | 동작전압(VF3) | 적분구에서의 광도(Po) at 95mA | |
비교예 | 138.4 | 2.931 | 140.5 |
실시예 | 141.0 | 2.898 | 143.7 |
InxAlyGa1-x-yN 계열 초격자층(단, 0≤x≤1, 0≤y≤1)(122),
InxGa1-xN층(122a)/AlyGa1--yN층(122b)의 초격자 구조,
AlzGa1-zN층(단, 0≤z≤1)(124)
Claims (8)
- 제1 도전형 반도체층;
상기 제1 도전형 반도체층 상에 활성층;
상기 활성층 상에 InxAlyGa1-x-yN 계열 초격자층(단, 0<x<1, 0<y<1);
상기 InxAlyGa1-x-yN 계열 초격자층 상에 AlzGa1-zN층(단, 0<z<1); 및
상기 AlzGa1-zN층(단, 0<z<1) 상에 제2 도전형 반도체층;을 포함하며,
상기 활성층과 상기 InxAlyGa1-x-yN 계열 초격자층(단, 0<x<1, 0<y<1) 사이에 배치된 언도프트 GaN 배리어;를 포함하며,
상기 InxAlyGa1-x-yN 계열 초격자층은, InxAlyGa1-x-yN층/InxGa1-xN층/AlyGa1--yN층의 초격자 구조를 포함하여 상기 활성층과 상기 제2 도전형 반도체층 사이에 배치되며,
상기 AlzGa1-zN층(단, 0<z<1)의 밴드 갭 에너지 준위는 상기 InxAlyGa1-x-yN 계열 초격자층보다 높은, 발광소자. - 삭제
- 제1 항에 있어서,
상기 InxGa1-xN층에서의 인듐(In)의 조성은
상기 활성층의 양자우물의 인듐의 조성보다 낮은 발광소자. - 제1 항에 있어서,
상기 AlyGa1--yN층에서의 알루미늄(Al)의 조성은
상기 AlzGa1-zN층의 알루미늄의 조성보다 낮은 발광소자. - 삭제
- 삭제
- 삭제
- 제1 항 및 제3항 내지 제4항 중 어느 하나에 기재된 발광소자를 구비하는 발광유닛을 포함하는 조명시스템.
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KR1020140096438A KR102212781B1 (ko) | 2014-07-29 | 2014-07-29 | 발광소자 및 조명시스템 |
Publications (2)
Publication Number | Publication Date |
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KR20160014343A KR20160014343A (ko) | 2016-02-11 |
KR102212781B1 true KR102212781B1 (ko) | 2021-02-05 |
Family
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KR1020140096438A Expired - Fee Related KR102212781B1 (ko) | 2014-07-29 | 2014-07-29 | 발광소자 및 조명시스템 |
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Families Citing this family (1)
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KR102466291B1 (ko) * | 2016-03-11 | 2022-11-14 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | 발광소자 및 조명장치 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007067454A (ja) | 1997-01-09 | 2007-03-15 | Nichia Chem Ind Ltd | 窒化物半導体素子 |
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KR20090021933A (ko) * | 2007-08-29 | 2009-03-04 | 엘지이노텍 주식회사 | 반도체 발광소자 및 그 제조방법 |
KR101438808B1 (ko) * | 2007-10-08 | 2014-09-05 | 엘지이노텍 주식회사 | 반도체 발광소자 및 그 제조방법 |
KR101389348B1 (ko) * | 2007-12-04 | 2014-04-30 | 삼성전자주식회사 | 질화갈륨계 반도체 발광소자 |
KR102042181B1 (ko) * | 2012-10-22 | 2019-11-07 | 엘지이노텍 주식회사 | 발광소자 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2007067454A (ja) | 1997-01-09 | 2007-03-15 | Nichia Chem Ind Ltd | 窒化物半導体素子 |
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