KR102142709B1 - 발광 소자 및 이를 구비한 조명 장치 - Google Patents
발광 소자 및 이를 구비한 조명 장치 Download PDFInfo
- Publication number
- KR102142709B1 KR102142709B1 KR1020130150702A KR20130150702A KR102142709B1 KR 102142709 B1 KR102142709 B1 KR 102142709B1 KR 1020130150702 A KR1020130150702 A KR 1020130150702A KR 20130150702 A KR20130150702 A KR 20130150702A KR 102142709 B1 KR102142709 B1 KR 102142709B1
- Authority
- KR
- South Korea
- Prior art keywords
- semiconductor layer
- feet
- layer
- light emitting
- semiconductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 188
- 150000004767 nitrides Chemical class 0.000 claims abstract description 56
- 229910002704 AlGaN Inorganic materials 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 268
- 239000000463 material Substances 0.000 description 18
- 238000009792 diffusion process Methods 0.000 description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 12
- 239000002019 doping agent Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 7
- 238000000605 extraction Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- -1 for example Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 239000004417 polycarbonate Substances 0.000 description 6
- 229920000515 polycarbonate Polymers 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 229910052738 indium Inorganic materials 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 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 4
- 229910052732 germanium Inorganic materials 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000644 propagated effect Effects 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 2
- 229910002601 GaN Inorganic materials 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000000089 atomic force micrograph Methods 0.000 description 2
- 238000004630 atomic force microscopy Methods 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910019897 RuOx Inorganic materials 0.000 description 1
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 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
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005136 cathodoluminescence Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 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
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QYHNIMDZIYANJH-UHFFFAOYSA-N diindium Chemical compound [In]#[In] QYHNIMDZIYANJH-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- YZZNJYQZJKSEER-UHFFFAOYSA-N gallium tin Chemical group [Ga].[Sn] YZZNJYQZJKSEER-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 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
- 238000009413 insulation Methods 0.000 description 1
- 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 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 238000001039 wet etching Methods 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
Images
Classifications
-
- 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
- H01L21/02433—Crystal orientation
-
- 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
- H10H20/822—Materials of the light-emitting regions
- 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
- H10H20/8252—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN characterised by the dopants
-
- 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
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02455—Group 13/15 materials
- H01L21/02458—Nitrides
-
- 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
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02494—Structure
-
- 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
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02494—Structure
- H01L21/02496—Layer structure
- H01L21/02505—Layer structure consisting of more than two layers
-
- 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
-
- 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
- H01L21/0257—Doping during depositing
- H01L21/02573—Conductivity type
- H01L21/02576—N-type
-
- 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
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/02636—Selective deposition, e.g. simultaneous growth of mono- and non-monocrystalline semiconductor materials
- H01L21/02639—Preparation of substrate for selective deposition
-
- 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
- H10H20/819—Bodies characterised by their shape, e.g. curved or truncated substrates
- H10H20/82—Roughened surfaces, e.g. at the interface between epitaxial 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
- H10H20/819—Bodies characterised by their shape, e.g. curved or truncated substrates
- H10H20/821—Bodies characterised by their shape, e.g. curved or truncated substrates of the light-emitting regions, e.g. non-planar junctions
-
- 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
- H10H20/8215—Bodies characterised by crystalline imperfections, e.g. dislocations; characterised by the distribution of dopants, e.g. delta-doping
-
- 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]
- H10H20/01—Manufacture or treatment
- H10H20/011—Manufacture or treatment of bodies, e.g. forming semiconductor layers
- H10H20/013—Manufacture or treatment of bodies, e.g. forming semiconductor layers having light-emitting regions comprising only Group III-V materials
- H10H20/0133—Manufacture or treatment of bodies, e.g. forming semiconductor layers having light-emitting regions comprising only Group III-V materials with a substrate not being Group III-V materials
- H10H20/01335—Manufacture or treatment of bodies, e.g. forming semiconductor layers having light-emitting regions comprising only Group III-V materials with a substrate not being Group III-V materials the light-emitting regions comprising nitride materials
-
- 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
- H10H20/819—Bodies characterised by their shape, e.g. curved or truncated substrates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Led Devices (AREA)
Abstract
실시 예에 따른 발광소자는, 상면으로부터 제1깊이를 갖는 제1피트 및 상기 제1피트의 제1깊이보다 작은 깊이를 갖고 상기 제1피트에 연결된 제2피트를 포함하는 제1반도체층; 상기 제1반도체층 위에 배치된 제2반도체층; 상기 제2반도체층 위에 배치된 활성층; 및 상기 활성층 위에 배치된 제3반도체층을 포함하며, 상기 제2반도체층은 AlGaN계 제1질화물층 및 상기 제1질화물층 위에 상기 제1질화물층과 다른 반도체를 갖는 제2질화물층을 포함하며, 상기 제1반도체층의 상면에 배치된 상기 제2피트의 밀도는 상기 제2반도체층의 상면에 배치된 제2피트의 밀도보다 높고, 상기 제2반도체층의 상면에서 상기 제1피트는 상기 제1반도체층의 상면에서의 제1피트의 밀도와 동일한 밀도로 형성된다.
Description
도 2는 도 1의 부분 확대도이다.
도 3은 도 1의 발광 소자의 제1반도체층에서의 피트를 나타낸 사시도이다.
도 4는 도 1의 발광 소자의 제2반도체층에서의 피트를 나타낸 사시도이다.
도 5는 제2실시 예에 따른 발광 소자의 측 단면도이다.
도 6은 도 1의 발광 소자에 전극을 배치한 제1예를 나타낸 도면이다.
도 7은 도 1의 발광 소자에 전극을 배치한 제2예를 나타낸 도면이다.
도 8 및 도 9는 비교 예와 실시 예의 발광 소자에서의 AFM(Atomic force microscopy) 이미지를 나타낸 도면이다.
도 10 및 도 11은 비교 예와 실시 예의 발광 소자에서의 CL(cathodoluminescence) 이미지를 나타낸 도면이다.
도 12는 도 6의 발광 소자를 갖는 발광 소자 패키지의 측 단면도이다.
도 13은 실시 예에 따른 발광 소자 또는 발광 소자 패키지를 갖는 표시장치를 나타낸 도면이다.
도 14는 실시 예에 따른 발광 소자 또는 발광 소자 패키지를 갖는 표시장치의 다른 예를 나타낸 도면이다.
도 15는 실시 예에 따른 발광 소자 또는 발광 소자 패키지를 갖는 조명장치를 나타낸 도면이다.
71-73: 피트 101, 102: 발광소자
111: 기판 112: 볼록부
113: 버퍼층 115: 제1반도체층
117: 제2반도체층 117: 활성층
119: 제3반도체층 121: 제4반도체층
Claims (13)
- 상면으로부터 제1깊이를 갖는 복수의 제1피트, 상기 제1피트의 제1깊이보다 작은 깊이를 갖는 복수의 제2피트, 및 상기 제1피트와 상기 제2피트로부터 이격된 복수의 제3피트를 갖는 제1반도체층;
상기 제1반도체층 위에 배치된 제2반도체층;
상기 제2반도체층 위에 배치된 활성층; 및
상기 활성층 위에 배치된 제3반도체층을 포함하며,
상기 제2반도체층은 AlGaN계 제1질화물층 및 상기 제1질화물층 위에 상기 제1질화물층과 다른 반도체를 갖는 제2질화물층을 포함하며,
상기 복수의 제2피트 중 적어도 하나는 상기 복수의 제1피트 중 적어도 하나에 연결되며,
상기 제3피트는 상기 제2피트의 깊이와 동일한 깊이이거나 다른 깊이를 가지며,
상기 제1피트, 상기 제2피트 및 상기 제3피트는 상기 제2반도체층 내에 연장되며,
상기 제1반도체층의 상면에서의 상기 제2피트의 밀도는 상기 제2반도체층의 상면에서의 제2피트의 밀도보다 높고,
상기 제2반도체층의 상면에서의 제1피트의 밀도는 상기 제1반도체층의 상면에서의 제1피트의 밀도와 동일한 발광 소자. - 제1항에 있어서,
상기 제1반도체층 아래에 배치되는 기판을 포함하고,
상기 기판은 상기 기판에서 상기 활성층의 방향으로 돌출되고 서로 이격되어 배치된 복수의 볼록부를 포함하고,
상기 복수의 볼록부 각각과 상기 복수의 제1피트 각각은 수직방향으로 중첩되는 발광 소자. - 제1항에 있어서,
상기 복수의 제1피트 각각의 영역에는 상기 복수의 제2피트의 일부가 수직 방향으로 오버랩되게 배치되는 발광 소자. - 제1항에 있어서,
상기 제1피트의 경사면과 상기 제2피트의 경사면이 서로 연결되며,
상기 제1피트와 상기 제2피트가 서로 연결되는 부분은 상기 제1피트 및 상기 제2피트의 저점보다 높게 위치하고 상기 제1반도체층의 상면보다는 낮게 위치한 발광 소자. - 제1항 내지 제4항 중 어느 하나의 항에 있어서,
상기 제1질화물층은 AlGaN 또는 InAlGaN 반도체를 포함하고,
상기 제2질화물층은 GaN 또는 InGaN 반도체를 포함하며,
상기 제1 및 제2질화물층은 교대로 적층되며, 상기 제1 및 제2질화물층의 주기는 2 내지 5주기로 적층되는 발광 소자. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130150702A KR102142709B1 (ko) | 2013-12-05 | 2013-12-05 | 발광 소자 및 이를 구비한 조명 장치 |
PCT/KR2014/009361 WO2015083932A1 (ko) | 2013-12-05 | 2014-10-06 | 발광 소자 및 이를 구비한 조명 장치 |
US15/101,844 US9647175B2 (en) | 2013-12-05 | 2014-10-06 | Light emitting element and lighting device comprising same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130150702A KR102142709B1 (ko) | 2013-12-05 | 2013-12-05 | 발광 소자 및 이를 구비한 조명 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20150065412A KR20150065412A (ko) | 2015-06-15 |
KR102142709B1 true KR102142709B1 (ko) | 2020-08-07 |
Family
ID=53273654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020130150702A Expired - Fee Related KR102142709B1 (ko) | 2013-12-05 | 2013-12-05 | 발광 소자 및 이를 구비한 조명 장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9647175B2 (ko) |
KR (1) | KR102142709B1 (ko) |
WO (1) | WO2015083932A1 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9722160B2 (en) * | 2014-10-31 | 2017-08-01 | Nichia Corporation | Light emitting device and adaptive driving beam headlamp system |
DE102015104700A1 (de) * | 2015-03-27 | 2016-09-29 | Osram Opto Semiconductors Gmbh | Optoelektronischer Halbleiterchip |
CN105355741B (zh) * | 2015-11-02 | 2017-09-29 | 厦门市三安光电科技有限公司 | 一种led外延结构及制作方法 |
KR102569461B1 (ko) * | 2015-11-30 | 2023-09-04 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | 발광소자 및 이를 포함하는 조명장치 |
KR102542228B1 (ko) * | 2016-01-18 | 2023-06-14 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | 질화물계 반도체층 및 그 성장 방법 |
JP6500239B2 (ja) * | 2016-01-26 | 2019-04-17 | 豊田合成株式会社 | Iii族窒化物半導体発光素子 |
US20190229230A1 (en) * | 2016-05-02 | 2019-07-25 | Sang Jeong An | Template for growing group iii-nitride semiconductor layer, group iii-nitride semiconductor light emitting device, and manufacturing method therefor |
JP6719600B2 (ja) | 2016-06-24 | 2020-07-08 | クロミス,インコーポレイテッド | 多結晶セラミック基板およびその製造方法 |
WO2018128419A1 (ko) * | 2017-01-04 | 2018-07-12 | 엘지이노텍 주식회사 | 반도체 소자 및 이를 포함하는 발광소자 패키지 |
JP6666626B2 (ja) * | 2017-01-31 | 2020-03-18 | 株式会社日立ハイテク | 荷電粒子検出器及び荷電粒子線装置 |
CN112259655B (zh) * | 2020-08-31 | 2021-08-06 | 华灿光电(浙江)有限公司 | 发光二极管外延片及其制备方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7105865B2 (en) * | 2001-09-19 | 2006-09-12 | Sumitomo Electric Industries, Ltd. | AlxInyGa1−x−yN mixture crystal substrate |
US7535031B2 (en) | 2005-09-13 | 2009-05-19 | Philips Lumiled Lighting, Co. Llc | Semiconductor light emitting device with lateral current injection in the light emitting region |
KR101164026B1 (ko) | 2007-07-12 | 2012-07-18 | 삼성전자주식회사 | 질화물계 반도체 발광소자 및 그 제조방법 |
KR20100093872A (ko) | 2009-02-17 | 2010-08-26 | 삼성엘이디 주식회사 | 질화물 반도체 발광소자 및 그 제조방법 |
US8183577B2 (en) * | 2009-06-30 | 2012-05-22 | Koninklijke Philips Electronics N.V. | Controlling pit formation in a III-nitride device |
US8525221B2 (en) | 2009-11-25 | 2013-09-03 | Toshiba Techno Center, Inc. | LED with improved injection efficiency |
DE102009060750B4 (de) | 2009-12-30 | 2025-04-10 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronischer Halbleiterchip und Verfahren zu dessen Herstellung |
KR101683898B1 (ko) * | 2010-06-21 | 2016-12-20 | 엘지이노텍 주식회사 | 발광 소자 |
US8110484B1 (en) * | 2010-11-19 | 2012-02-07 | Sumitomo Electric Industries, Ltd. | Conductive nitride semiconductor substrate and method for producing the same |
US8975165B2 (en) * | 2011-02-17 | 2015-03-10 | Soitec | III-V semiconductor structures with diminished pit defects and methods for forming the same |
US20140103359A1 (en) | 2011-07-28 | 2014-04-17 | Samsung Electronics Co., Ltd. | Semiconductor light-emitting device and method for manufacturing same |
US8698163B2 (en) * | 2011-09-29 | 2014-04-15 | Toshiba Techno Center Inc. | P-type doping layers for use with light emitting devices |
KR20130039169A (ko) * | 2011-10-11 | 2013-04-19 | 엘지이노텍 주식회사 | 발광소자 |
-
2013
- 2013-12-05 KR KR1020130150702A patent/KR102142709B1/ko not_active Expired - Fee Related
-
2014
- 2014-10-06 WO PCT/KR2014/009361 patent/WO2015083932A1/ko active Application Filing
- 2014-10-06 US US15/101,844 patent/US9647175B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
KR20150065412A (ko) | 2015-06-15 |
US20160380155A1 (en) | 2016-12-29 |
US9647175B2 (en) | 2017-05-09 |
WO2015083932A1 (ko) | 2015-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102142709B1 (ko) | 발광 소자 및 이를 구비한 조명 장치 | |
JP6210800B2 (ja) | 発光素子 | |
KR101953716B1 (ko) | 발광소자, 발광 소자 패키지 및 조명 시스템 | |
KR102098110B1 (ko) | 발광소자, 발광소자 패키지 및 라이트 유닛 | |
JP6039590B2 (ja) | 発光素子 | |
JP5816242B2 (ja) | 発光素子 | |
KR102181381B1 (ko) | 발광소자 | |
KR102131319B1 (ko) | 발광 소자 및 이를 구비한 조명 장치 | |
JP5709949B2 (ja) | 発光素子 | |
KR20140106946A (ko) | 발광소자, 발광소자 패키지 및 라이트 유닛 | |
KR101843420B1 (ko) | 발광소자, 발광 소자 제조방법 및 발광 소자 패키지 | |
KR20140078250A (ko) | 발광소자, 발광 소자 제조방법 및 조명 시스템 | |
KR101896690B1 (ko) | 발광소자 및 발광 소자 패키지 | |
KR102008313B1 (ko) | 발광소자, 발광소자 패키지 및 라이트 유닛 | |
KR102476036B1 (ko) | 발광 소자 | |
KR102098923B1 (ko) | 발광소자, 발광 소자 제조방법 및 발광 소자 패키지 | |
KR102199998B1 (ko) | 발광소자 | |
KR101154795B1 (ko) | 발광 소자, 발광 소자 제조방법 및 발광 소자 패키지 | |
KR102169826B1 (ko) | 발광소자 | |
KR102055794B1 (ko) | 발광소자, 발광소자 패키지 및 라이트 유닛 | |
KR101976466B1 (ko) | 발광소자 | |
KR101959756B1 (ko) | 발광 소자 및 이를 구비한 조명 장치 | |
KR102119731B1 (ko) | 발광소자 | |
KR102086115B1 (ko) | 발광소자 | |
KR101826980B1 (ko) | 발광소자, 발광 소자 제조방법 및 발광 소자 패키지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20131205 |
|
PG1501 | Laying open of application | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20181205 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 20131205 Comment text: Patent Application |
|
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20191224 Patent event code: PE09021S01D |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20200630 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20200803 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 20200804 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration | ||
PC1903 | Unpaid annual fee |
Termination category: Default of registration fee Termination date: 20250514 |