WO2010064848A2 - 3족 질화물 반도체 발광소자 - Google Patents
3족 질화물 반도체 발광소자 Download PDFInfo
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- WO2010064848A2 WO2010064848A2 PCT/KR2009/007169 KR2009007169W WO2010064848A2 WO 2010064848 A2 WO2010064848 A2 WO 2010064848A2 KR 2009007169 W KR2009007169 W KR 2009007169W WO 2010064848 A2 WO2010064848 A2 WO 2010064848A2
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- Prior art keywords
- nitride semiconductor
- group iii
- iii nitride
- bonding pad
- pad
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 95
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 82
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 230000006798 recombination Effects 0.000 claims abstract description 5
- 238000005215 recombination Methods 0.000 claims abstract description 5
- 238000002161 passivation Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 103
- 239000000758 substrate Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000001039 wet etching Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000000313 electron-beam-induced deposition Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/36—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes
- H01L33/40—Materials therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/44—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
Definitions
- the present disclosure generally relates to a group III nitride semiconductor light emitting device, and more particularly, to a group III nitride semiconductor light emitting device capable of improving the loss of a protective film on the bonding pad side.
- the group III nitride semiconductor light emitting device has a compound semiconductor layer of Al (x) Ga (y) In (1-xy) N (0 ⁇ x ⁇ 1, 0 ⁇ y ⁇ 1, 0 ⁇ x + y ⁇ 1).
- FIG. 1 is a view illustrating an example of a conventional Group III nitride semiconductor light emitting device, wherein the Group III nitride semiconductor light emitting device is grown on the substrate 100, the buffer layer 200 grown on the substrate 100, and the buffer layer 200.
- the p-side electrode 600 formed on the group nitride semiconductor layer 500, the p-side bonding pad 700 formed on the p-side electrode 600, the p-type group III nitride semiconductor layer 500 and the active layer 400 are formed.
- the n-side electrode 800 and the passivation layer 900 are formed on the n-type group III nitride semiconductor layer 300 exposed by mesa etching.
- a GaN-based substrate is used as the homogeneous substrate, and a sapphire substrate, a SiC substrate, or a Si substrate is used as the heterogeneous substrate. Any substrate may be used as long as the group III nitride semiconductor layer can be grown.
- the n-side electrode 800 may be formed on the SiC substrate side.
- Group III nitride semiconductor layers grown on the substrate 100 are mainly grown by MOCVD (organic metal vapor growth method).
- the buffer layer 200 is intended to overcome the difference in lattice constant and thermal expansion coefficient between the dissimilar substrate 100 and the group III nitride semiconductor, and US Pat.
- a technique for growing an AlN buffer layer having a thickness of US Pat. No. 5,290,393 describes Al (x) Ga (1-x) N having a thickness of 10 kPa to 5000 kPa at a temperature of 200 to 900 C on a sapphire substrate. (0 ⁇ x ⁇ 1)
- a technique for growing a buffer layer is described, and US Patent Publication No. 2006/154454 discloses growing a SiC buffer layer (seed layer) at a temperature of 600 ° C.
- the undoped GaN layer is grown prior to the growth of the n-type Group III nitride semiconductor layer 300, which may be viewed as part of the buffer layer 200 or as part of the n-type Group III nitride semiconductor layer 300. .
- n-type contact layer In the n-type group III nitride semiconductor layer 300, at least a region (n-type contact layer) in which the n-side electrode 800 is formed is doped with impurities, and the n-type contact layer is preferably made of GaN and doped with Si. .
- U. S. Patent No. 5,733, 796 describes a technique for doping an n-type contact layer to a desired doping concentration by controlling the mixing ratio of Si and other source materials.
- the active layer 400 is a layer that generates photons (light) through recombination of electrons and holes, and is mainly composed of In (x) Ga (1-x) N (0 ⁇ x ⁇ 1), and one quantum well layer (single quantum wells) or multiple quantum wells.
- the p-type III-nitride semiconductor layer 500 is doped with an appropriate impurity such as Mg, and has an p-type conductivity through an activation process.
- U.S. Patent No. 5,247,533 describes a technique for activating a p-type group III nitride semiconductor layer by electron beam irradiation, and U.S. Patent No. 5,306,662 annealing the p-type Group III nitride semiconductor layer at a temperature of 400 ⁇ ⁇ or higher. A technique for activating is described, and US Patent Publication No.
- 2006/157714 discloses a p-type III-nitride semiconductor layer without an activation process by using ammonia and a hydrazine-based source material together as a nitrogen precursor for growth of the p-type III-nitride semiconductor layer. Techniques for having this p-type conductivity have been described.
- the p-side electrode 600 is provided to supply a good current to the entire p-type group III nitride semiconductor layer 500.
- US Patent No. 5,563,422 is formed over almost the entire surface of the p-type group III nitride semiconductor layer.
- a light-transmitting electrode made of Ni and Au in ohmic contact with the p-type III-nitride semiconductor layer 500 is described.
- US Pat. No. 6,515,306 discloses n on the p-type III-nitride semiconductor layer. A technique is described in which a type superlattice layer is formed and then a translucent electrode made of indium tin oxide (ITO) is formed thereon.
- ITO indium tin oxide
- the p-side electrode 600 may be formed to have a thick thickness so as not to transmit light, that is, to reflect the light toward the substrate side, this technique is referred to as flip chip (flip chip) technology.
- U. S. Patent No. 6,194, 743 describes a technique relating to an electrode structure including an Ag layer having a thickness of 20 nm or more, a diffusion barrier layer covering the Ag layer, and a bonding layer made of Au and Al covering the diffusion barrier layer.
- the p-side bonding pad 700 and the n-side electrode 800 are for supplying current and wire bonding to the outside, and US Patent No. 5,563,422 describes a technique in which the n-side electrode is composed of Ti and Al.
- the protective film 900 is formed of a material such as silicon dioxide.
- U. S. Patent No. 5,563, 422 discloses a technique for forming a protective film having light transmissivity and insulation between the p-side bonding pad and the n-side electrode or on the upper surface of the light emitting device except for the wire bonding portion of the p-side bonding pad and the n-side electrode. It is described.
- the n-type III-nitride semiconductor layer 300 or the p-type III-nitride semiconductor layer 500 may be composed of a single layer or a plurality of layers, and recently, the substrate 100 may be formed by laser or wet etching. A technique for manufacturing a vertical light emitting device by separating from group III nitride semiconductor layers has been introduced.
- FIG. 2 is a photograph showing an example of a bonding pad side protective film of a conventional Group III nitride semiconductor light emitting device.
- the p-side bonding pad 700 and the protective film 900 may not be easily adhered, and thus the protective film 900 may be easily broken or peeled off. (A) can be seen. This is a problem that may cause a poor connection between the bonding pad 700 and the wire when bonding the bonding pad 700 to make a package.
- a first group III nitride semiconductor layer having a first conductivity a second group III nitride semiconductor layer having a second conductivity different from the first conductivity, A plurality of Group III nitride semiconductor layers disposed between the first Group III nitride semiconductor layer and the second Group III nitride semiconductor layer and having an active layer that generates light by recombination of electrons and holes; Bonding pads electrically connected to the plurality of Group III nitride semiconductor layers; A protective film on the bonding pads; And a buffer pad positioned between the bonding pad and the passivation layer, the buffer pad being exposed to expose the bonding pad.
- the adhesion between the bonding pad and the protective film can be improved.
- the bonding between the bonding pad and the protective film can be improved while wire bonding to the bonding pad.
- FIG. 1 is a view showing an example of a conventional group III nitride semiconductor light emitting device
- FIG. 2 is a photograph showing an example of a bonding pad side protective film of a conventional Group III nitride semiconductor light emitting device
- FIG. 3 is a view showing an example of a group III nitride semiconductor light emitting device according to the present disclosure
- FIG. 4 is a view showing an example in a method of manufacturing a group III nitride semiconductor light emitting device according to the present disclosure
- FIG. 5 is a photograph showing an example of a bonding pad side protective film of a group III nitride semiconductor light emitting device according to the present disclosure
- FIG. 3 is a diagram illustrating an example of a group III nitride semiconductor light emitting device according to the present disclosure, in which the group III nitride semiconductor light emitting device is disposed on a substrate 10, a buffer layer 20, and a buffer layer 20 grown on the substrate 10.
- the n-type III-nitride semiconductor layer 30 P-type grown on the n-type III-nitride semiconductor layer 30, the n-type III-nitride semiconductor layer 30 to be grown and generates light by recombination of electrons and holes, and p-grown on the active layer 40 P-type electrode 60 formed on p-type group III nitride semiconductor layer 50, p-type group III nitride semiconductor layer 50, p-side bonding pad 70 formed on p-side electrode 60, at least p-type The n-side electrode 80, the p-side bonding pad 70, and the n-side electrode formed on the n-type Group III nitride semiconductor layer 30 where the Group III nitride semiconductor layer 50 and the active layer 40 are etched and exposed.
- the n-side electrode 80 not only supplies electricity to the n-type group III nitride semiconductor layer 30 but also serves as a bonding pad for wire bonding.
- the protective film 90 may be formed of an oxide film.
- the protective film 90 may be made of SiO 2 , TiO 2 , Al 2 O 3 as an oxide film.
- the p-side bonding pad 70 is for connection and wire bonding with the p-side electrode 60.
- the Cr layer 72, the Ni layer 74, and the Au layer are sequentially formed on the p-side electrode 60. 76 can be made.
- the buffer pad 78 is formed on the p-side bonding pad 70 to overcome the low adhesion between the p-side bonding pad 70 and the passivation layer 90.
- the p-side bonding pad 70 and the passivation layer ( 90) is made of a material that can be bonded or bonded. This means that when the p-side bonding pad 70 is made of metal and the protective film 90 is made of an oxide film, the buffer pad 78 may be made of an oxidizable metal.
- the buffer pad 78 is capable of good adhesion not only with Au but also with SiO 2.
- an oxidizable metal which may be made of Ni or Cr.
- the buffer pad 78 is annular so that the center portion 70c of the p-side bonding pad 70 is exposed for bonding between the p-side bonding pad 70 and the wire.
- the buffer pad 78 is preferably formed at the outer periphery of the upper surface of the p-side bonding pad 70 so as to secure the maximum area for bonding between the p-side bonding pad 70 and the wire.
- the n-side electrode 80 is for connection and wire bonding with the n-type Group III nitride semiconductor layer 30.
- the Cr layer 82 and Ni are sequentially formed on the n-type Group III nitride semiconductor layer 30.
- the layer 84 and the Au layer 86 may be formed.
- the buffer pad 88 formed on the n-side electrode 80 may be formed in the same configuration as the buffer pad 78 formed on the p-side bonding pad 70, and description thereof will be omitted.
- the passivation layer 90 is formed on the buffer pads 78 and 88, and the p-side bonding pad exposed by the buffer pad 78 for wire bonding to the p-side bonding pad 70 and the n-side electrode 80 ( 70) and the light emitting device except for the n-side electrode 80 exposed by the buffer pad 88.
- FIG. 4 is a diagram illustrating an example of a method of manufacturing a group III nitride semiconductor light emitting device according to the present disclosure.
- a plurality of group III nitride semiconductor layers 20, 30, 40, and 50 are grown on the substrate 10 (see FIG. 4A).
- the p-type III-nitride semiconductor layer 50 and the active layer 40 are etched to expose the n-type III-nitride semiconductor layer 30 (see FIG. 4B).
- the p-side electrode 60 is formed (see FIG. 4B). Formation of the p-side electrode 60 may be formed over the entire upper surface of the p-type group III nitride semiconductor layer 50, and may be formed in part. The p-side electrode 60 may be formed before etching the p-type group III nitride semiconductor layer 50 and the active layer 40.
- the p-side bonding pad 70 and the n-side electrode 80 are formed (see FIG. 4C).
- the p-side bonding pad 70 and the n-side electrode 80 may be formed through separate processes, respectively.
- the p-side electrode 60 may be formed before etching the p-type group III nitride semiconductor layer 50 and the active layer 40 in a separate process.
- the p-side bonding pad 70 may be formed to have a thickness of 1 ⁇ m to 2 ⁇ m by sequentially stacking Cr, Ni, and Au layers on the p-side electrode 60 using, for example, electron beam deposition.
- the n-side electrode 80 may also be formed in the same manner.
- a buffer pad 78 is formed on the p-side bonding pad 70 (see FIG. 4D).
- the buffer pad 78 may be formed of a Ni layer having a thickness of 10 ⁇ s to 200 ⁇ s on the p-side bonding pad 70 by using an electron beam deposition method.
- the buffer pad 88 may be formed in the same manner.
- the protective film 90 is formed.
- the protective film 90 may be made of SiO 2 , TiO 2 , Al 2 O 3 (see FIG. 4D).
- Removal of the passivation layer 90 may be performed by dry etching or wet etching.
- dry etching may be performed for about 250 seconds using a gas containing CF 4
- wet etching may be performed for 1 to 2 minutes using a solution containing HF. Can be removed.
- the protective film 90 is removed to remove the exposed buffer pads 78 and 88 (see FIG. 4F). Removal of the exposed buffer pads 78, 88 may be accomplished by wet etching. For example, the exposed buffer pads 78 and 88 may be removed by wet etching a solution containing HCl for several tens of seconds when the Ni layer is formed.
- annealing is performed.
- annealing can take place at 425 ° C. for about 1 minute.
- FIG. 5 is a photograph showing an example of a bonding pad side protective film of a group III nitride semiconductor light emitting device according to the present disclosure, and the p-side bonding pad 70 having a central portion exposed by the buffer pad 78 may be viewed, and a buffer It can be seen that the peeling of the protective film 90 formed on the pad 78 is improved.
- a group III nitride semiconductor light emitting element comprising a buffer pad between the protective film and the bonding pad. Thereby, the adhesion failure between the bonding pad and the protective film can be improved.
- a group III nitride semiconductor light emitting element comprising a band pad on a bonding pad. Thereby, wire bonding can be performed to a bonding pad.
- a group III nitride semiconductor light emitting element comprising an oxidizable metal layer between the bonding pad and the protective film.
- a group III nitride semiconductor light emitting element comprising a Ni layer between the bonding pad and the protective film.
- a group III nitride semiconductor light emitting element comprising a Cr layer between the bonding pads and the protective film.
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Abstract
Description
Claims (6)
- 제1 전도성을 지니는 제1 3족 질화물 반도체층, 제1 전도성과 다른 제2 전도성을 지니는 제2 3족 질화물 반도체층, 제1 3족 질화물 반도체층과 제2 3족 질화물 반도체층 사이에 위치하여 전자와 정공의 재결합에 의해 빛을 생성하는 활성층을 구비하는 복수개의 3족 질화물 반도체층;복수개의 3족 질화물 반도체층과 전기적으로 연결되는 본딩 패드;본딩 패드 위에 위치하는 보호막; 그리고,본딩 패드와 보호막 사이에 위치하며, 본딩 패드가 노출되도록 형성되는 버퍼 패드;를 포함하는 것을 특징으로 하는 3족 질화물 반도체 발광소자.
- 청구항 1에서,보호막은 산화막으로 이루어지며,버퍼 패드는 산화가능한 금속인 것을 특징으로 하는 3족 질화물 반도체 발광소자.
- 청구항 1에서,보호막은 SiO2로 이루어지며,본딩 패드는 상면이 Au으로 이루어지고,버퍼 패드는 Ni 또는 Cr으로 이루어지는 것을 특징으로 하는 3족 질화물 반도체 발광소자.
- 청구항 1에서,버퍼 패드는 환형으로 이루어지는 것을 특징으로 하는 3족 질화물 반도체 발광소자.
- 청구항 1에서,복수개의 3족 질화물 반도체층은 제1 3족 질화물 반도체층이 노출되도록 적어도 제2 3족 질화물 반도체층 및 활성층이 식각되고,본딩 패드는 제1 3족 질화물 반도체층과 전기적으로 연결되는 제1 본딩 패드와, 제2 3족 질화물 반도체층과 전기적으로 연결되는 제2 본딩 패드를 구비하고,버퍼 패드는 보호막 및 본딩 패드와 접착되며, 제1 본딩 패드가 노출되도록 제1 본딩 패드 위에 밴드 형상으로 형성되는 제1 버퍼 패드와, 제2 본딩 패드가 노출되도록 제2 본딩 패드 위에 밴드 형상으로 형성되는 제2 버퍼 패드를 구비하고,보호막은 발광소자의 상부를 덮도록 형성되되, 제1 버퍼 패드에 의해 노출되는 제1 본딩 패드 및 제2 버퍼 패드에 의해 노출되는 제2 본딩 패드의 상측이 개방되어 제1 버퍼 패드 및 제2 버퍼 패드 위에 형성되는 것을 특징으로 하는 3족 질화물 반도체 발광소자.
- 청구항 5에서,보호막은 SiO2로 이루어지고,본딩 패드는 상면이 Au으로 이루어지며,버퍼 패드는 Ni 또는 Cr으로 이루어지는 것을 특징으로 하는 3족 질화물 반도체 발광소자.
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JP2011539449A JP2012510724A (ja) | 2008-12-02 | 2009-12-02 | 3族窒化物半導体発光素子 |
CN200980148569XA CN102239575A (zh) | 2008-12-02 | 2009-12-02 | Ⅲ族氮化物半导体发光器件 |
US12/648,707 US8101965B2 (en) | 2008-12-02 | 2009-12-29 | III-nitride semiconductor light emitting device having a multilayered pad |
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CN103367590A (zh) * | 2013-07-08 | 2013-10-23 | 安徽三安光电有限公司 | 一种氮化镓基发光二极管及其制作方法 |
US10032960B2 (en) * | 2014-06-03 | 2018-07-24 | Semicon Light Co., Ltd. | Semiconductor light emitting device of a flip chip and method for manufacturing same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060018988A (ko) * | 2004-08-26 | 2006-03-03 | 에피밸리 주식회사 | Ⅲ-질화물 반도체 발광소자 |
JP2006135313A (ja) * | 2004-11-03 | 2006-05-25 | Shogen Koden Kofun Yugenkoshi | 発光ダイオード |
JP2008171884A (ja) * | 2007-01-09 | 2008-07-24 | Toyota Central R&D Labs Inc | 電極の形成方法 |
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JP3026087B2 (ja) * | 1989-03-01 | 2000-03-27 | 豊田合成株式会社 | 窒化ガリウム系化合物半導体の気相成長方法 |
DE69126152T2 (de) * | 1990-02-28 | 1997-11-13 | Toyoda Gosei Kk | Lichtemittierende Halbleitervorrichtung mit Gallium-Nitrid-Verbindung |
US5290393A (en) * | 1991-01-31 | 1994-03-01 | Nichia Kagaku Kogyo K.K. | Crystal growth method for gallium nitride-based compound semiconductor |
JP3255281B2 (ja) * | 1997-11-14 | 2002-02-12 | 日亜化学工業株式会社 | 窒化物半導体素子 |
JP2001053336A (ja) * | 1999-08-05 | 2001-02-23 | Toyoda Gosei Co Ltd | Iii族窒化物系化合物半導体発光素子 |
JP2002314131A (ja) * | 2001-04-10 | 2002-10-25 | Showa Denko Kk | 透光性電極及びその製造方法並びにそれを用いたiii族窒化物半導体発光素子 |
KR100448352B1 (ko) * | 2003-11-28 | 2004-09-10 | 삼성전기주식회사 | GaN 기반 질화막의 형성방법 |
DE112006000562B4 (de) * | 2005-03-09 | 2021-02-18 | Toyoda Gosei Co., Ltd. | Nitridhalbleiter-Leuchtbauteil und Verfahren zu dessen Herstellung |
JP4947954B2 (ja) * | 2005-10-31 | 2012-06-06 | スタンレー電気株式会社 | 発光素子 |
-
2008
- 2008-12-02 KR KR20080121156A patent/KR100960280B1/ko not_active IP Right Cessation
-
2009
- 2009-12-02 JP JP2011539449A patent/JP2012510724A/ja active Pending
- 2009-12-02 WO PCT/KR2009/007169 patent/WO2010064848A2/ko active Application Filing
- 2009-12-02 CN CN200980148569XA patent/CN102239575A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060018988A (ko) * | 2004-08-26 | 2006-03-03 | 에피밸리 주식회사 | Ⅲ-질화물 반도체 발광소자 |
JP2006135313A (ja) * | 2004-11-03 | 2006-05-25 | Shogen Koden Kofun Yugenkoshi | 発光ダイオード |
JP2008171884A (ja) * | 2007-01-09 | 2008-07-24 | Toyota Central R&D Labs Inc | 電極の形成方法 |
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KR100960280B1 (ko) | 2010-06-04 |
WO2010064848A3 (ko) | 2010-08-19 |
CN102239575A (zh) | 2011-11-09 |
JP2012510724A (ja) | 2012-05-10 |
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