JP2009049301A - 発光素子及びその製造方法 - Google Patents
発光素子及びその製造方法 Download PDFInfo
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- JP2009049301A JP2009049301A JP2007216034A JP2007216034A JP2009049301A JP 2009049301 A JP2009049301 A JP 2009049301A JP 2007216034 A JP2007216034 A JP 2007216034A JP 2007216034 A JP2007216034 A JP 2007216034A JP 2009049301 A JP2009049301 A JP 2009049301A
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- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
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- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 29
- 229910002601 GaN Inorganic materials 0.000 description 25
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- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 6
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- 239000004332 silver Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 4
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- FHUGMWWUMCDXBC-UHFFFAOYSA-N gold platinum titanium Chemical compound [Ti][Pt][Au] FHUGMWWUMCDXBC-UHFFFAOYSA-N 0.000 description 2
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- 238000000927 vapour-phase epitaxy Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/107—Subwavelength-diameter waveguides, e.g. nanowires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
- G02B6/132—Integrated optical circuits characterised by the manufacturing method by deposition of thin films
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- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0083—Periodic patterns for optical field-shaping in or on the semiconductor body or semiconductor body package, e.g. photonic bandgap structures
-
- 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
-
- 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
- H01L33/42—Transparent materials
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- Nanotechnology (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
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Abstract
【解決手段】発光層を備える支持基板、及び前記支持基板の光取り出し面上に形成された光透過層を具備し、前記光透過層は、前記支持基板よりも屈折率の低い材料からなる複数の凸状構造体を含み、面内方向及び厚さ方向に周期的屈折率分布構造を有することを特徴とする。
【選択図】図1
Description
図8に示す発光ダイオードは、GaN、SiC又はサファイアよりなる基板11上に、n型GaN層12、活性層13、p型GaAlN層(電子オーバーフロー防止層)14、p型GaNからなる第1のコンタクト層15、及びp型GaNからなる第2のコンタクト層16を順次形成し、更にp型GaNからなる第2のコンタクト層16上にp型電極層17を、n型GaN層12上にn型電極層18を形成することにより構成される。
本実施例は、図11に示すような基板を挟んで上下に電極を設け、上下に電流を流す構造の発光ダイオードに適用した例である。
Claims (10)
- 発光層を備える支持基板、及び前記支持基板の光取り出し面上に形成された光透過層を具備し、前記光透過層は、前記支持基板よりも屈折率の低い材料からなる複数の凸状構造体を含み、面内方向及び厚さ方向に周期的屈折率分布構造を有することを特徴とする発光素子。
- 前記光透過層は、前記凸状構造体を覆う、前記凸状構造体よりも屈折率の低い材料からなる被覆層を含むことを特徴とする請求項1に記載の発光素子。
- 前記凸状構造体は無機材料からなり、前記被覆層は樹脂材料からなることを特徴とする請求項2に記載の発光素子。
- 前記凸状構造体は蛍光体からなることを特徴とする請求項1〜3のいずれかに記載の発光素子。
- 前記凸状構造体及び被覆層は樹脂材料からなり、前記凸状構造体は、エネルギービームの照射による樹脂の相転移により形成されたことを特徴とする請求項2に記載の発光素子。
- 前記支持基板の光取り出し面は、水平面とその周囲の傾斜面とからなることを特徴とする請求項1〜5のいずれかに記載の発光素子。
- 前記凸状構造体は、ナノメーターないしサブミクロンオーダーのサイズを有することを特徴とする請求項1〜6のいずれかに記載の発光素子。
- 前記凸状構造体の上、又は隣接する凸状構造体間の空隙内に蛍光体粒子が配置されていることを特徴とする請求項1〜7のいずれかに記載の発光素子。
- 発光層を備える支持基板上に、エネルギービームの照射により相転移し、屈折率が変化する樹脂層を形成する工程、及びこの樹脂層にエネルギービームを照射し、樹脂を相転移せしめ、前記樹脂層に周期的屈折率分布構造を形成する工程を具備することを特徴とする発光素子の製造方法。
- 前記エネルギービームはレーザビームであり、前記樹脂層は、光記録用樹脂材料、ホログラム記録用樹脂材料、又は回折格子光学部品用樹脂材料であることを特徴とする請求項9に記載の発光素子の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007216034A JP4829190B2 (ja) | 2007-08-22 | 2007-08-22 | 発光素子 |
US12/195,536 US8148890B2 (en) | 2007-08-22 | 2008-08-21 | Light-emitting device and method for manufacturing the same |
Applications Claiming Priority (1)
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JP2007216034A JP4829190B2 (ja) | 2007-08-22 | 2007-08-22 | 発光素子 |
Related Child Applications (1)
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JP2010167356A Division JP5334925B2 (ja) | 2010-07-26 | 2010-07-26 | 発光素子 |
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JP2009049301A true JP2009049301A (ja) | 2009-03-05 |
JP4829190B2 JP4829190B2 (ja) | 2011-12-07 |
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JP2007216034A Expired - Fee Related JP4829190B2 (ja) | 2007-08-22 | 2007-08-22 | 発光素子 |
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US (1) | US8148890B2 (ja) |
JP (1) | JP4829190B2 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010278316A (ja) * | 2009-05-29 | 2010-12-09 | Panasonic Electric Works Co Ltd | 発光装置 |
JP2011146546A (ja) * | 2010-01-15 | 2011-07-28 | Toyoda Gosei Co Ltd | 発光装置の製造方法 |
JP2013510433A (ja) * | 2009-11-03 | 2013-03-21 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | 1つ以上の表面上において酸化亜鉛(ZnO)ナノロッドアレイを利用する発光ダイオード構造、およびそのようなZnOナノロッドアレイを製作するための低コスト方法 |
JP2013128112A (ja) * | 2011-12-16 | 2013-06-27 | Lg Innotek Co Ltd | 発光素子 |
JP2018006529A (ja) * | 2016-06-30 | 2018-01-11 | 三菱電機株式会社 | 発光装置 |
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KR101449030B1 (ko) | 2008-04-05 | 2014-10-08 | 엘지이노텍 주식회사 | 그룹 3족 질화물계 반도체 발광다이오드 소자 및 이의 제조방법 |
KR101834978B1 (ko) | 2009-04-15 | 2018-03-06 | 더 리전츠 오브 더 유니버시티 오브 캘리포니아 | 산화아연 필름, 나노구조체, 및 벌크 단결정의 수계 합성용 저온 연속식 순환 반응기 |
US8933526B2 (en) * | 2009-07-15 | 2015-01-13 | First Solar, Inc. | Nanostructured functional coatings and devices |
KR101081166B1 (ko) * | 2009-09-23 | 2011-11-07 | 엘지이노텍 주식회사 | 발광소자, 발광소자의 제조방법 및 발광소자 패키지 |
KR100969100B1 (ko) | 2010-02-12 | 2010-07-09 | 엘지이노텍 주식회사 | 발광소자, 발광소자의 제조방법 및 발광소자 패키지 |
JP5331051B2 (ja) * | 2010-04-21 | 2013-10-30 | パナソニック株式会社 | 発光素子 |
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US8148890B2 (en) | 2012-04-03 |
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