JP2015119032A - 面状光源および発光素子の製造方法 - Google Patents
面状光源および発光素子の製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000758 substrate Substances 0.000 claims abstract description 66
- 239000004065 semiconductor Substances 0.000 claims abstract description 52
- 229910052594 sapphire Inorganic materials 0.000 claims abstract description 40
- 239000010980 sapphire Substances 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 150000004767 nitrides Chemical class 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 238000001039 wet etching Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 12
- 238000002955 isolation Methods 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229910002704 AlGaN 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
- 238000005253 cladding Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 2
- IBEFSUTVZWZJEL-UHFFFAOYSA-N trimethylindium Chemical compound C[In](C)C IBEFSUTVZWZJEL-UHFFFAOYSA-N 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- QBJCZLXULXFYCK-UHFFFAOYSA-N magnesium;cyclopenta-1,3-diene Chemical compound [Mg+2].C1C=CC=[C-]1.C1C=CC=[C-]1 QBJCZLXULXFYCK-UHFFFAOYSA-N 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- 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
- H01L33/005—Processes
- H01L33/0062—Processes for devices with an active region comprising only III-V compounds
-
- 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
- H01L33/48—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 body packages
-
- 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
- H01L33/48—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 body packages
- H01L33/50—Wavelength conversion elements
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Led Devices (AREA)
- Planar Illumination Modules (AREA)
- Led Device Packages (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
2:発光装置
20:発光素子
21:ケース
22:封止樹脂
23:凹部
100:サファイア基板
101:n層
102:発光層
103:p層
104:透明電極
105:p電極
106:n電極
107:溝
108:半導体層
108a:長辺側の側面
108b:短辺側の側面
109:改質部
Claims (5)
- 導光板と、前記導光板の側面に配置され、その側面の方向に白色発光する発光装置と、を有し、前記発光装置からの光を前記導光板の側面から内部に入射させ、前記導光板内部から前記導光板表面へと放射させる面状光源において、
前記発光装置は、
基板と、前記基板上に位置するIII 族窒化物半導体からなる半導体層とを有する青色発光の発光素子と、
凹部を有し、その凹部に前記発光素子が納められたケースと、
前記凹部を埋めて前記発光素子を封止し、黄色蛍光体が混合された封止樹脂と、を備え、
前記発光素子は平面視で長方形であって、前記半導体層の長辺側の側面は、前記基板側から離れるにつれて前記基板主面方向の断面積が増加する傾斜を有した逆テーパー状であり、短辺側の側面は、前記基板主面に対して垂直、または前記基板側から離れるにつれて前記基板主面方向の断面積が減少する傾斜を有した順テーパー状であり、
前記発光素子の短辺方向は前記導光板表面に垂直な方向に、長辺方向は前記導光板表面に平行な方向に、前記発光素子の主面に垂直な方向は前記導光板の側面に垂直な方向になるよう、前記導光板に対して前記発光装置を配置する、
ことを特徴とする面状光源。 - 前記長辺側の側面は、前記基板主面に対して5〜85°の傾斜を有することを特徴とする請求項1に記載の面状光源。
- 前記導光板の厚さは、前記凹部開口の短辺方向の幅の1〜15倍とすることを特徴とする請求項1または請求項2に記載の面状光源。
- 基板上にIII 族窒化物半導体からなる半導体層を有する発光素子の製造方法において、
前記半導体層の形成後、前記半導体層を各素子ごとに分割する長方形の格子状のパターンの素子分離溝のうち、長辺方向の溝のみを形成する第1工程と、
前記溝側面に露出する前記半導体層側面をウェットエッチングして、その側面は前記基板側から離れるにつれて前記基板主面方向の断面積が増加する傾斜を有した逆テーパー状とする第2工程と、
を有することを特徴とする発光素子の製造方法。 - 前記第1工程は、レーザーにより前記溝を形成するとともに、前記半導体層中のサファイア基板近傍に改質部を形成し、
前記第2工程は、前記改質部をウェットエッチングの起点とすることで前記半導体層側面を逆テーパー状とする、
ことを特徴とする請求項4に記載の発光素子の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013261344A JP6229479B2 (ja) | 2013-12-18 | 2013-12-18 | 面状光源および発光素子の製造方法 |
US14/567,953 US10101522B2 (en) | 2013-12-18 | 2014-12-11 | Planar light source and method for producing light-emitting device |
CN201410790329.2A CN104733570B (zh) | 2013-12-18 | 2014-12-17 | 平面光源和用于制造发光器件的方法 |
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JP2013261344A JP6229479B2 (ja) | 2013-12-18 | 2013-12-18 | 面状光源および発光素子の製造方法 |
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Publication Number | Publication Date |
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JP2015119032A true JP2015119032A (ja) | 2015-06-25 |
JP6229479B2 JP6229479B2 (ja) | 2017-11-15 |
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US (1) | US10101522B2 (ja) |
JP (1) | JP6229479B2 (ja) |
CN (1) | CN104733570B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113454525A (zh) * | 2019-02-21 | 2021-09-28 | 美蓓亚三美株式会社 | 面状照明装置 |
Families Citing this family (1)
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CN110767780A (zh) * | 2018-07-26 | 2020-02-07 | 兆远科技股份有限公司 | 紫外光发光二极管模块及导光元件的制造方法 |
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2013
- 2013-12-18 JP JP2013261344A patent/JP6229479B2/ja active Active
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2014
- 2014-12-11 US US14/567,953 patent/US10101522B2/en active Active
- 2014-12-17 CN CN201410790329.2A patent/CN104733570B/zh active Active
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JP2003298107A (ja) * | 2002-01-29 | 2003-10-17 | Toshiba Corp | 半導体発光素子及びその製造方法 |
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Publication number | Publication date |
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CN104733570B (zh) | 2018-02-09 |
US10101522B2 (en) | 2018-10-16 |
CN104733570A (zh) | 2015-06-24 |
US20150168638A1 (en) | 2015-06-18 |
JP6229479B2 (ja) | 2017-11-15 |
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