WO2010064872A2 - 반도체 발광소자 - Google Patents
반도체 발광소자 Download PDFInfo
- Publication number
- WO2010064872A2 WO2010064872A2 PCT/KR2009/007241 KR2009007241W WO2010064872A2 WO 2010064872 A2 WO2010064872 A2 WO 2010064872A2 KR 2009007241 W KR2009007241 W KR 2009007241W WO 2010064872 A2 WO2010064872 A2 WO 2010064872A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- semiconductor layer
- electrode
- nitride semiconductor
- emitting device
- layer
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 110
- 230000006798 recombination Effects 0.000 claims abstract description 5
- 238000005215 recombination Methods 0.000 claims abstract description 5
- 150000004767 nitrides Chemical class 0.000 claims description 55
- 238000003892 spreading Methods 0.000 claims description 2
- 230000007480 spreading Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 97
- 239000000758 substrate Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 16
- 229910052737 gold Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000000313 electron-beam-induced deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating 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
- 230000003287 optical effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide 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
- H01L33/38—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 with a particular shape
-
- 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
- H01L33/20—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 with a particular shape, e.g. curved or truncated substrate
Definitions
- the present disclosure relates to a semiconductor light emitting device as a whole, and more particularly, to a semiconductor light emitting device for improving the detachment of a pad to be wire bonded.
- the semiconductor light emitting device refers to a semiconductor optical device that generates light through recombination of electrons and holes, for example, a group III nitride semiconductor light emitting device.
- the group III nitride semiconductor consists of a compound of Al (x) Ga (y) In (1-x-y) N (0 ⁇ x ⁇ 1, 0 ⁇ y ⁇ 1, 0 ⁇ x + y ⁇ 1).
- GaAs type semiconductor light emitting elements used for red light emission, etc. are mentioned.
- 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 passivation layer 900 is formed of a material such as silicon dioxide and may be omitted.
- 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.
- such a light emitting device may cause a problem that the p-side bonding pad 700 is peeled off from the light emitting device when wire bonding to the p-side bonding pad 700.
- FIG. 2 is a view showing an example of a group III nitride semiconductor light emitting device described in US Pat. No. 5,563,422, wherein the light emitting device is a substrate 110, an n-type group III nitride semiconductor layer 210 formed on the substrate 110, and n.
- the p-type III-nitride semiconductor layer 310 formed on the type-III group nitride semiconductor layer 210 and the p-type III-nitride semiconductor layer 310 are formed, and include a cut-out portion 412.
- the p-side bonding pad 510 is attached to the group III nitride semiconductor layer 310, and the p-side bonding pad 510 is directly bonded to the p-type group III nitride semiconductor layer 310, thereby providing the p-side bonding pad 510.
- wire bonding to the light emitting device a technique related to a light emitting device that is intended to improve the problem that the p-side bonding pad 510 is separated from the light emitting device It is
- the light emitting device also has poor adhesion between the p-side bonding pad 510 (for example, a metal such as Cr and Au) and the p-side electrode 410 (for example, a conductive oxide film such as ITO).
- the p-side bonding pad 510 for example, a metal such as Cr and Au
- the p-side electrode 410 for example, a conductive oxide film such as ITO.
- a portion where the p-side bonding pad 510 and the p-side electrode 410 overlap is present at least a predetermined amount. This leads to a loss of luminous efficiency of the device.
- an according to one aspect of the present disclosure includes: a first semiconductor layer having a first conductivity, a second semiconductor layer having a second conductivity different from the first conductivity, and a first semiconductor layer; A plurality of semiconductor layers positioned between the second semiconductor layers and having an active layer generating light through recombination of electrons and holes; Bonding pads electrically connected to the plurality of semiconductor layers; A first electrode spreading over the plurality of semiconductor layers; And a second electrode extending from the bonding pad to the first electrode and electrically connecting the bonding pad and the first electrode.
- the bonding pads are separated from the light emitting device during wire bonding.
- FIG. 1 is a view showing an example of a conventional group III nitride semiconductor light emitting device
- FIG. 2 is a view showing an example of a group III nitride semiconductor light emitting device described in US Patent No. 5,563,422;
- 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 of a cross section of a group III nitride semiconductor light emitting device according to the present disclosure
- FIG. 5 is a view showing an example of a method of manufacturing a group III nitride semiconductor light emitting device according to the present disclosure
- 6 is a photo of the group III nitride semiconductor light emitting device according to the present disclosure to emit light according to the current change.
- FIG. 3 and 4 are diagrams illustrating an example of a group III nitride semiconductor light emitting device according to the present disclosure
- FIG. 4 is a cross-sectional view taken along line AA ′ of FIG. 3.
- the light emitting device is grown on the substrate 10, the buffer layer 20 grown on the substrate 10, the n-type Group III nitride semiconductor layer 30, and the n-type Group III nitride semiconductor layer 30 grown on the buffer layer 20.
- the n-side electrode 80, the p-side bonding pad 70, the p-side electrode 60, and the branch electrodes 72 and 82 formed on the semiconductor layer 30 are included.
- the p-side bonding pad 70 is formed on the p-type group III nitride semiconductor layer 50, and a wire for supplying electricity to the light emitting element is bonded.
- the p-side bonding pad 70 may be p-type III-nitride semiconductor layer 50 to maintain adhesion to the p-type III-nitride semiconductor layer 50 even when pulled by the wire during or after wire bonding. 50 and a high adhesive force, for example, may be formed by laminating Cr / Ni / Au to a thickness of about 1.5 ⁇ m.
- the p-side electrode 60 is for smoothly supplying current to the entire p-type group III nitride semiconductor layer 50 and is formed on the p-type group III nitride semiconductor layer 50.
- the p-side electrode 60 may be made of a conductive oxide film.
- the p-side electrode 60 prevents the p-side bonding pad 70 from being separated from the p-type group III nitride semiconductor layer 50 by external force due to the low adhesion between the p-side bonding pad 70 and the p-side electrode 60.
- a cutout 65 is formed to be spaced apart from the p-side electrode 60.
- the p-side electrode 60 may be made of indium tin oxide (ITO), and may be formed to a thickness of about 1750 ⁇ s.
- the branch electrode 72 is in contact with the p-side bonding pad 70 and in contact with the p-side electrode 60. This is because the current supplied to the p-side bonding pad 70 is supplied to the p-side electrode 60 through the branch electrode 72, thereby forming a gap between the p-side bonding pad 70 and the p-type group III nitride semiconductor layer 50. This is to supply a smooth current to the entire p-type group III nitride semiconductor layer 50 while maintaining strong adhesion. To this end, the branch electrode 72 extends from the p-side bonding pad 70 and extends over the p-side electrode 60. For example, the branch electrode 72 may be formed by stacking Cr / Ni / Au to a thickness of about 1.5 ⁇ m.
- FIG. 5 is a view showing an example of a method of manufacturing a group III nitride semiconductor light emitting device according to the present disclosure.
- a buffer layer 20, an n-type group III nitride semiconductor layer 30, an active layer 40, and a p-type group III nitride semiconductor layer 50 are grown on the substrate 10 (see FIG. 5A). ).
- the p-type group III nitride semiconductor layer 50 and the active layer 40 are etched to expose the n-type group III nitride semiconductor layer 30 for forming the n-side electrode 80 (FIG. 5B). )Reference).
- the p-side electrode 60 having the cutout 65 may be formed by photolithography, except for the p-type group III nitride semiconductor layer 50 except for the portion where the p-side electrode 60 is to be formed.
- the photoresist 90 is formed thereon (see FIG. 5B), and the p-side electrode 60 is deposited on the p-type group III nitride semiconductor layer 50 (see FIG. 5C).
- the p-side electrode 60 may be formed before etching to expose the n-type group III nitride semiconductor layer 30.
- the p-side electrode 60 in order to form the p-side electrode 60 having the cutout 65, the p-side electrode 60 must be formed on the p-type group III nitride semiconductor layer 50, and the cutout 65 must be formed.
- An etch mask (not shown) is formed on the p-side electrode 60 so as to expose the position, and the p-side electrode 60 exposed by the etch mask (not shown) is removed through wet etching, thereby cutting the cut portion 65. May be formed.
- wet etching may be performed by immersing the p-side electrode 60 in ITO for about 30 seconds at about 45 ° C. in a solution containing HCl.
- the p-side bonding pad 70 is formed on the p-type group III nitride semiconductor layer 50 exposed by the notch 65 (see FIG. 5E).
- the branch electrode 72 is also formed at the same time, it may be formed through a separate process.
- the p-side bonding pad 70 may be formed to have a thickness of about 1.5 ⁇ m by sequentially stacking Cr, Ni, and Au layers using an electron beam deposition method.
- the n-side electrode 80 and the branch electrode 82 may also be formed in the same manner.
- FIG. 6 is a photo of the group III nitride semiconductor light emitting device according to the present disclosure that emits light according to a current change, wherein the branch electrode 72 (see FIG. 3) has a p-side bonding pad 70 (see FIG. 3) and a p-side electrode ( 60 (see FIG. 3), the current is smoothly diffused to the p-side electrode 60 (see FIG. 3), and light is uniformly emitted from the entire light emitting device.
- a semiconductor light emitting element having a cutout portion in a p-side electrode so that a p-side bonding pad and a p-side electrode are spaced apart.
- the p-side bonding pad can be improved from being separated from the light emitting element by an external force at the time of wire bonding due to the low adhesive force with the p-side electrode.
- the partial overlap between the p-side bonding pad and the p-side electrode is not excluded from the portion where the branch electrode is formed from the p-side bonding pad.
- a semiconductor light emitting element comprising a branch electrode extending from the p-side bonding pad and in contact with the p-side electrode. Thereby, a current can be supplied from a p side bonding pad to a p side electrode.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
Abstract
Description
Claims (5)
- 제1 전도성을 지니는 제1 반도체층, 제1 전도성과 다른 제2 전도성을 지니는 제2 반도체층, 그리고 제1 반도체층과 제2 반도체층 사이에 위치하며, 전자와 정공의 재결합을 통해 빛을 생성하는 활성층을 구비하는 복수개의 반도체층;복수개의 반도체층과 전기적으로 연결되는 본딩 패드;복수개의 반도체층에 펼쳐지는 제1 전극; 그리고,본딩 패드로부터 제1 전극으로 연장되며, 본딩 패드와 제1 전극을 전기적으로 접속시키는 제2 전극;을 포함하는 것을 특징으로 하는 반도체 발광소자.
- 청구항 1에서,제1 전극은 본딩 패드와 이격되는 것을 특징으로 하는 반도체 발광소자.
- 청구항 1에서,적어도 제2 반도체층 및 활성층이 식각되어 노출되는 제1 반도체층 위에 형성되는 제3 전극;을 포함하는 것을 특징으로 하는 반도체 발광소자.
- 청구항 1에서,본딩 패드는 제2 반도체층 위에 형성되고,제1 전극은 본딩 패드와 이격되어 제2 반도체층 위에 형성되며,적어도 제2 반도체층 및 활성층이 식각되어 노출되는 제1 반도체층 위에 형성되는 제3 전극; 그리고,제3 전극으로부터 연장되는 제4 전극;을 포함하는 것을 특징으로 하는 반도체 발광소자.
- 청구항 1에서,발광소자는 3족 질화물 반도체 발광소자인 것을 특징으로 하는 반도체 발광소자.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/132,854 US20110233603A1 (en) | 2008-12-04 | 2009-12-04 | Semiconductor light-emitting device |
CN2009801488452A CN102239576A (zh) | 2008-12-04 | 2009-12-04 | 半导体发光器件 |
JP2011539452A JP2012511249A (ja) | 2008-12-04 | 2009-12-04 | 半導体発光素子 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080122470A KR101000276B1 (ko) | 2008-12-04 | 2008-12-04 | 반도체 발광소자 |
KR10-2008-0122470 | 2008-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010064872A2 true WO2010064872A2 (ko) | 2010-06-10 |
WO2010064872A3 WO2010064872A3 (ko) | 2010-08-26 |
Family
ID=42233756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/007241 WO2010064872A2 (ko) | 2008-12-04 | 2009-12-04 | 반도체 발광소자 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110233603A1 (ko) |
JP (1) | JP2012511249A (ko) |
KR (1) | KR101000276B1 (ko) |
CN (1) | CN102239576A (ko) |
WO (1) | WO2010064872A2 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012243954A (ja) * | 2011-05-19 | 2012-12-10 | Nichia Chem Ind Ltd | 窒化物半導体発光素子の製造方法 |
JP2018029217A (ja) * | 2009-10-20 | 2018-02-22 | 晶元光電股▲ふん▼有限公司Epistar Corporation | 光電素子 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101209163B1 (ko) * | 2011-04-19 | 2012-12-06 | 주식회사 세미콘라이트 | 반도체 발광소자 |
KR101978968B1 (ko) | 2012-08-14 | 2019-05-16 | 삼성전자주식회사 | 반도체 발광소자 및 발광장치 |
KR102647673B1 (ko) * | 2016-09-27 | 2024-03-14 | 서울바이오시스 주식회사 | 발광 다이오드 |
US10153401B2 (en) * | 2016-12-16 | 2018-12-11 | Intel Corporation | Passivated micro LED structures suitable for energy efficient displays |
US20190189850A1 (en) * | 2017-12-19 | 2019-06-20 | Epistar Corporation | Light-emitting device |
CN108875598B (zh) | 2018-05-30 | 2021-08-17 | 京东方科技集团股份有限公司 | 一种指纹识别组件及其制作方法、电子设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100647018B1 (ko) * | 2005-09-26 | 2006-11-23 | 삼성전기주식회사 | 질화물계 반도체 발광소자 |
KR100730082B1 (ko) * | 2005-10-17 | 2007-06-19 | 삼성전기주식회사 | 질화물계 반도체 발광소자 |
KR20070111091A (ko) * | 2006-05-16 | 2007-11-21 | 삼성전기주식회사 | 질화물계 반도체 발광다이오드 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CA2037198C (en) * | 1990-02-28 | 1996-04-23 | Katsuhide Manabe | Light-emitting semiconductor device using gallium nitride group compound |
JP3160914B2 (ja) * | 1990-12-26 | 2001-04-25 | 豊田合成株式会社 | 窒化ガリウム系化合物半導体レーザダイオード |
US5290393A (en) * | 1991-01-31 | 1994-03-01 | Nichia Kagaku Kogyo K.K. | Crystal growth method for gallium nitride-based compound semiconductor |
US5306662A (en) * | 1991-11-08 | 1994-04-26 | Nichia Chemical Industries, Ltd. | Method of manufacturing P-type compound semiconductor |
KR100286699B1 (ko) * | 1993-01-28 | 2001-04-16 | 오가와 에이지 | 질화갈륨계 3-5족 화합물 반도체 발광디바이스 및 그 제조방법 |
KR100225612B1 (en) * | 1993-04-28 | 1999-10-15 | Nichia Kagaku Kogyo Kk | Gallium nitride-based iii-v group compound semiconductor |
EP1928034A3 (en) * | 1997-12-15 | 2008-06-18 | Philips Lumileds Lighting Company LLC | Light emitting device |
TW488088B (en) * | 2001-01-19 | 2002-05-21 | South Epitaxy Corp | Light emitting diode structure |
JP4547933B2 (ja) | 2003-02-19 | 2010-09-22 | 日亜化学工業株式会社 | 窒化物半導体素子 |
WO2005008795A1 (en) * | 2003-07-18 | 2005-01-27 | Epivalley Co., Ltd. | Nitride semiconductor light emitting device |
KR100448352B1 (ko) * | 2003-11-28 | 2004-09-10 | 삼성전기주식회사 | GaN 기반 질화막의 형성방법 |
KR100616693B1 (ko) * | 2005-08-09 | 2006-08-28 | 삼성전기주식회사 | 질화물 반도체 발광 소자 |
WO2008038842A1 (en) * | 2006-09-25 | 2008-04-03 | Seoul Opto Device Co., Ltd. | Light emitting diode having extensions of electrodes for current spreading |
JP2008218440A (ja) * | 2007-02-09 | 2008-09-18 | Mitsubishi Chemicals Corp | GaN系LED素子および発光装置 |
CN101315964B (zh) * | 2008-06-10 | 2011-01-26 | 武汉华灿光电有限公司 | 氮化镓基发光二极管芯片 |
-
2008
- 2008-12-04 KR KR1020080122470A patent/KR101000276B1/ko not_active IP Right Cessation
-
2009
- 2009-12-04 WO PCT/KR2009/007241 patent/WO2010064872A2/ko active Application Filing
- 2009-12-04 JP JP2011539452A patent/JP2012511249A/ja active Pending
- 2009-12-04 US US13/132,854 patent/US20110233603A1/en not_active Abandoned
- 2009-12-04 CN CN2009801488452A patent/CN102239576A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100647018B1 (ko) * | 2005-09-26 | 2006-11-23 | 삼성전기주식회사 | 질화물계 반도체 발광소자 |
KR100730082B1 (ko) * | 2005-10-17 | 2007-06-19 | 삼성전기주식회사 | 질화물계 반도체 발광소자 |
KR20070111091A (ko) * | 2006-05-16 | 2007-11-21 | 삼성전기주식회사 | 질화물계 반도체 발광다이오드 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018029217A (ja) * | 2009-10-20 | 2018-02-22 | 晶元光電股▲ふん▼有限公司Epistar Corporation | 光電素子 |
JP2012243954A (ja) * | 2011-05-19 | 2012-12-10 | Nichia Chem Ind Ltd | 窒化物半導体発光素子の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN102239576A (zh) | 2011-11-09 |
WO2010064872A3 (ko) | 2010-08-26 |
KR101000276B1 (ko) | 2010-12-10 |
US20110233603A1 (en) | 2011-09-29 |
KR20100064052A (ko) | 2010-06-14 |
JP2012511249A (ja) | 2012-05-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010064872A2 (ko) | 반도체 발광소자 | |
EP2120273A2 (en) | Semiconductor light emitting device | |
US20100140656A1 (en) | Semiconductor Light-Emitting Device | |
JP2000091637A (ja) | 半導体発光素子の製法 | |
WO2011087310A2 (ko) | 3족 질화물 반도체 발광소자 | |
US8101965B2 (en) | III-nitride semiconductor light emitting device having a multilayered pad | |
KR101069362B1 (ko) | 반도체 발광소자 | |
KR100960277B1 (ko) | 3족 질화물 반도체 발광소자를 제조하는 방법 | |
KR101032987B1 (ko) | 반도체 발광소자 | |
WO2010064870A2 (ko) | 반도체 발광소자 | |
WO2012067428A2 (ko) | 3족 질화물 반도체 발광소자 | |
WO2010064848A2 (ko) | 3족 질화물 반도체 발광소자 | |
CN102044605B (zh) | 半导体发光设备及其制造方法 | |
KR101124470B1 (ko) | 반도체 발광소자 | |
KR101090178B1 (ko) | 반도체 발광소자 | |
KR100743468B1 (ko) | 3족 질화물 반도체 발광소자 | |
WO2011081484A2 (ko) | 3족 질화물 반도체 발광소자 | |
KR101084641B1 (ko) | 3족 질화물 반도체 발광소자 | |
WO2010064869A2 (ko) | 반도체 발광소자 | |
KR100985720B1 (ko) | 발광소자 패키지의 제조 방법 | |
JP3638413B2 (ja) | 半導体発光装置とその製造方法 | |
KR101147715B1 (ko) | 반도체 발광소자 | |
JPH10173229A (ja) | 3族窒化物半導体発光素子の製造方法 | |
KR101124474B1 (ko) | 반도체 발광소자를 제조하는 방법 | |
WO2009154409A2 (ko) | 반도체 발광소자 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980148845.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09830610 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011539452 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13132854 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09830610 Country of ref document: EP Kind code of ref document: A2 |