KR101963219B1 - 발광 소자 - Google Patents
발광 소자 Download PDFInfo
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- KR101963219B1 KR101963219B1 KR1020120093056A KR20120093056A KR101963219B1 KR 101963219 B1 KR101963219 B1 KR 101963219B1 KR 1020120093056 A KR1020120093056 A KR 1020120093056A KR 20120093056 A KR20120093056 A KR 20120093056A KR 101963219 B1 KR101963219 B1 KR 101963219B1
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- nanostructures
- etching
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- 239000004065 semiconductor Substances 0.000 claims abstract description 109
- 238000000034 method Methods 0.000 claims abstract description 84
- 238000005530 etching Methods 0.000 claims abstract description 70
- 239000002086 nanomaterial Substances 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims description 63
- 238000009616 inductively coupled plasma Methods 0.000 claims description 9
- 238000004528 spin coating Methods 0.000 claims description 6
- 238000001020 plasma etching Methods 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- 238000003618 dip coating Methods 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 229910005793 GeO 2 Inorganic materials 0.000 claims description 3
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 238000001039 wet etching Methods 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 153
- 239000002077 nanosphere Substances 0.000 description 40
- 238000000605 extraction Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 6
- 239000011787 zinc oxide Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000002161 passivation Methods 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 5
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 5
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper 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
- 238000009792 diffusion process Methods 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- -1 for example Substances 0.000 description 4
- 229910052733 gallium Inorganic materials 0.000 description 4
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000001451 molecular beam epitaxy Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 238000000103 photoluminescence spectrum Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229910052738 indium Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910019897 RuOx Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- BVKXKLLXKLOWJS-UHFFFAOYSA-N [In+3].[O-2].[Zn+2].[Al+3].[In+3] Chemical compound [In+3].[O-2].[Zn+2].[Al+3].[In+3] BVKXKLLXKLOWJS-UHFFFAOYSA-N 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
- KKEYTLVFLSCKDE-UHFFFAOYSA-N [Sn+2]=O.[O-2].[Zn+2].[O-2] Chemical compound [Sn+2]=O.[O-2].[Zn+2].[O-2] KKEYTLVFLSCKDE-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- ZXVOCOLRQJZVBW-UHFFFAOYSA-N azane;ethanol Chemical compound N.CCO ZXVOCOLRQJZVBW-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- YZZNJYQZJKSEER-UHFFFAOYSA-N gallium tin Chemical compound [Ga].[Sn] YZZNJYQZJKSEER-UHFFFAOYSA-N 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 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
- 238000000059 patterning Methods 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- TYHJXGDMRRJCRY-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) tin(4+) Chemical compound [O-2].[Zn+2].[Sn+4].[In+3] TYHJXGDMRRJCRY-UHFFFAOYSA-N 0.000 description 1
Images
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
- H10H20/819—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
- H10H20/872—Periodic patterns for optical field-shaping, e.g. photonic bandgap structures
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- Led Devices (AREA)
Abstract
Description
도 7 내지 도 10은 다른 실시 예에 따른 발광 소자의 제조 방법을 나타낸다.
도 11 내지 도 14는 또 다른 실시 예에 따른 발광 소자의 제조 방법을 나타낸다.
도 15는 실시 예에 따라 형성되는 계단 구조를 갖는 광 추출 구조의 SEM사진을 나타낸다.
도 16은 실시 예에 따른 계단 구조의 광 추출 구조를 갖는 발광 소자의 PL 스펙트럼을 나타낸다.
도 17 내지 도 19는 다른 실시 예에 따른 발광 소자의 제조 방법을 나타낸다.
도 20 내지 도 24는 또 다른 실시 예에 따른 발광 소자의 제조 방법을 나타낸다.
도 25는 실시 예에 따른 발광 소자 패키지를 나타낸다.
도 26은 실시 예에 따른 발광 소자 패키지를 포함하는 조명 장치의 분해 사시도이다.
도 27은 실시 예에 따른 발광 소자 패키지를 포함하는 표시 장치를 나타낸다.
도 28은 실시 예에 따른 발광 소자 패키지를 포함하는 해드 램프를 나타낸다.
112: 제1 반도체층 114: 활성층
116: 제2 반도체층 120: 나노구조물
130: 제1 요철 140: 제2 요철
150: 전도층 162: 제1 전극
164: 제2 전극 420: 보호층
425: 전류 차단층 430: 제2 전극부
432: 오믹 영역 434: 반사층
436: 지지층 450: 패시베이션층
460: 제1 전극부.
Claims (19)
- 기판 상에 제1 반도체층, 활성층, 및 제2 반도체층을 포함하는 발광 구조물을 형성하는 단계;
상기 제2 반도체층 상에 복수의 나노 구조물들을 형성하는 단계;
상기 나노 구조물들을 마스크로 이용하여 상기 제2 반도체층을 식각하는 제1 식각 공정을 수행하여 제1 요철을 형성하는 단계;
상기 복수의 나노 구조물들을 식각하는 제2 식각 공정을 수행하여 상기 복수의 나노 구조물들의 크기를 감소시키는 단계; 및
상기 크기가 감소된 나노 구조물들을 마스크로 이용하여 상기 제1 요철이 형성된 상기 제2 반도체층을 식각하는 제3 식각 공정을 수행하여, 계단 구조의 제2 요철을 형성하는 단계를 포함하고,
상기 제1 식각 공정은 ICP(Inductively Coupled Plasma) 식각 공정을 이용하고, 상기 제1 식각 공정에서 상기 복수의 나노 구조물들과 상기 제2 반도체층 사이의 식각 선택비는 1:1 ~ 1:3이고,
상기 제2 식각 공정은 반응성 이온 식각 공정을 이용하고, 상기 제2 식각 공정에서 상기 제2 반도체층은 식각되지 않고,
상기 제3 식각 공정은 상기 ICP 식각 공정을 이용하고, 상기 제3 식각 공정에서 상기 복수의 나노 구조물들과 상기 제2 반도체층 사이의 식각 선택비는 1:1 ~ 1:3이고,
상기 제2 식각 공정 완료 후 상기 복수의 나노 구조물들 각각의 직경은 제1 직경의 1/10 ~ 9/10이고, 상기 제1 직경은 상기 제1 식각 공정 이전의 상기 제2 반도체층 상에 형성된 상기 복수의 나노 구조물들 각각의 직경인 발광 소자의 제조 방법. - 삭제
- 제1항에 있어서,
상기 복수의 나노 구조물들은 산화물, 폴리머, 또는 이들의 조합으로 이루어지는 발광 소자의 제조 방법. - 제3항에 있어서,
상기 복수의 나노 구조물들은 SiO2, Al2O3, TiO2, ZrO2, Y2O3-ZrO2, CuO, Cu2O, Ta2O5, PZT(Pb(Zr,Ti)O3), Nb2O5, Fe3O3, 및 GeO2 중에서 선택된 1종 이상을 포함하여 형성되고,
딥 코팅(dip coating) 또는 스핀 코팅(spin coating)을 이용하여 상기 복수의 나노 구조물들을 형성하는 발광 소자의 제조 방법. - 제1항에 있어서,
상기 제2 반도체층 상에 형성되는 상기 나노 구조물들 각각의 직경은 50nm~ 10㎛이고,
상기 제1 요철의 오목부의 깊이는 상기 제2 반도체층의 두께의 1/20 ~ 2/3이고,
상기 제2 요철의 제1단의 높이는 10nm ~ 150nm이고, 상기 제2 요철의 제2단의 높이는 10nm ~ 50nm인 발광 소자의 제조 방법. - 삭제
- 삭제
- 삭제
- 삭제
- 제1항에 있어서,
상기 제2 요철을 형성하는 단계 이후에 습식 식각을 이용하여 상기 크기가 감소된 나노 구조물들을 제거하는 단계를 더 포함하는 발광 소자의 제조 방법. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
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KR1020120093056A KR101963219B1 (ko) | 2012-08-24 | 2012-08-24 | 발광 소자 |
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KR20140026092A KR20140026092A (ko) | 2014-03-05 |
KR101963219B1 true KR101963219B1 (ko) | 2019-03-28 |
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Citations (1)
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JP2011258923A (ja) * | 2010-06-04 | 2011-12-22 | Qinghua Univ | 発光ダイオード |
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JP2011258923A (ja) * | 2010-06-04 | 2011-12-22 | Qinghua Univ | 発光ダイオード |
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