JP6215255B2 - 発光素子、発光素子パッケージ、及び照明システム - Google Patents
発光素子、発光素子パッケージ、及び照明システム Download PDFInfo
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- 229910052782 aluminium Inorganic materials 0.000 claims description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 35
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
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- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 7
- 229910052733 gallium Inorganic materials 0.000 claims description 6
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- 239000004925 Acrylic resin Substances 0.000 description 1
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910019897 RuOx Inorganic materials 0.000 description 1
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 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
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
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- 238000000071 blow moulding Methods 0.000 description 1
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- 239000012159 carrier gas Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
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- 229920001577 copolymer Polymers 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
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- YZZNJYQZJKSEER-UHFFFAOYSA-N gallium tin Chemical compound [Ga].[Sn] YZZNJYQZJKSEER-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- HRHKULZDDYWVBE-UHFFFAOYSA-N indium;oxozinc;tin Chemical compound [In].[Sn].[Zn]=O HRHKULZDDYWVBE-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 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 1
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- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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- 229910052712 strontium Inorganic materials 0.000 description 1
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- 229920003002 synthetic resin Polymers 0.000 description 1
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- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- 239000002966 varnish Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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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
- H01L33/02—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
- H01L33/12—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 stress relaxation structure, e.g. buffer 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
- H01L33/02—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
- H01L33/04—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 quantum effect structure or superlattice, e.g. tunnel junction
- H01L33/06—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 quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
-
- 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
- H01L33/04—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 quantum effect structure or superlattice, e.g. tunnel junction
-
- 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
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Led Devices (AREA)
- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
前記基板111と前記第1導電型半導体層117との間には1つまたは複数の半導体層が配置されることができ、これに対して限定するものではない。
実施形態による発光素子又は発光素子は、照明システムに適用される。前記照明システムは、複数の発光素子がアレイされた構造を含み、図12及び図13に示されている表示装置、図14に示されている照明装置とを含み、照明灯、信号灯、車両前照灯、電光板などが含まれる。
Claims (20)
- 第1導電型半導体層と、
前記第1導電型半導体層の上に第2導電型半導体層と、
前記第1導電型半導体層と前記第2導電型半導体層との間に配置され、複数の井戸層と複数の障壁層を含む活性層と、
を含み、
前記複数の井戸層は相互隣接した第1井戸層と第2井戸層を含み、
前記複数の障壁層は、前記第1井戸層と第2井戸層との間に配置される第1障壁層を含み、
前記第1障壁層は、前記第1井戸層の第1エネルギーバンドギャップより広いエネルギーバンドギャップを有する複数の半導体層を含み、
前記複数の半導体層は、前記第1井戸層の第1エネルギーバンドギャップより広い第2エネルギーバンドギャップを有する第1半導体層と、前記第1井戸層と前記第1半導体層との間に、前記第2エネルギーバンドギャップより広い第3エネルギーバンドギャップを有する第2半導体層と、前記第1半導体層と前記第2井戸層との間に、前記第2エネルギーバンドギャップより広い第4エネルギーバンドギャップを有する第3半導体層を含み、
前記第2及び第3半導体層は、アルミニウムを含む二元系化合物半導体から形成され、
前記第2及び第3半導体層は、相互同じ半導体から形成され、前記第1半導体層の格子定数より小さい格子定数を有する物質を含み、
前記活性層は、紫外線波長の光を放出し、
前記第2及び第3半導体層は、前記第1半導体層または前記第1井戸層の厚さより薄い厚さを有することを特徴とする、発光素子。 - 前記第1半導体層は、前記第2及び第3半導体層のアルミニウムの組成より低いアルミニウムの組成を有することを特徴とする、請求項1に記載の発光素子。
- 前記活性層と前記第2導電型半導体層との間に配置される電子遮断層を含むことを特徴とする、請求項1または2に記載の発光素子。
- 前記複数の障壁層のうち前記電子遮断層に隣接した障壁層は、前記第1〜第3半導体層のうちの少なくとも一つを含むことを特徴とする、請求項3に記載の発光素子。
- 前記活性層内において、前記第1導電型半導体層に隣接した層は井戸層であることを特徴とする、請求項1から4のいずれか一項に記載の発光素子。
- 第1導電型半導体層と、
前記第1導電型半導体層の上に第2導電型半導体層と、
前記第1導電型半導体層と前記第2導電型半導体層との間に配置され、複数の井戸層と複数の障壁層を含む活性層と、
を含み、
前記複数の井戸層は、相互隣接した第1井戸層と第2井戸層を含み、
前記複数の障壁層は、前記第1井戸層と第2井戸層との間に配置された第1障壁層を含み、
前記第1障壁層は、前記第1井戸層の第1エネルギーバンドギャップより広いエネルギーバンドギャップを有する複数の半導体層を含み、
前記複数の半導体層は、前記第1井戸層の第1エネルギーバンドギャップより広い第2エネルギーバンドギャップを有する第1半導体層と、前記第1井戸層と前記第1半導体層との間に、前記第2エネルギーバンドギャップより広い第3エネルギーバンドギャップを有する第2半導体層と、前記第1半導体層と前記第2井戸層との間に、前記第2エネルギーバンドギャップより広い第4エネルギーバンドギャップを有する第3半導体層を含み、
前記第2及び第3半導体層は、アルミニウムを含む二元系化合物半導体から形成され、
前記第2及び第3半導体層は、相互同じ半導体から形成され、前記第1半導体層の格子定数より小さい格子定数を有する物質を含み、
前記活性層は、紫外線波長の光を放出し、
前記活性層は、前記第1導電型半導体層に隣接したAlN材質の障壁層を有することを特徴とする、発光素子。 - 前記第1半導体層は、アルミニウムと窒素を含む三元系または四元系の化合物半導体から形成されることを特徴とする、請求項1から6のいずれか一項に記載の発光素子。
- 前記第2及び第3半導体層は、前記第1半導体層の障壁高さより高い障壁高さを有することを特徴とする、請求項1から7のいずれか一項に記載の発光素子。
- 前記活性層は、400nm以下の波長の光を放出することを特徴とする、請求項1から8のいずれか一項に記載の発光素子。
- 前記第2半導体層及び前記第3半導体層は、AlNから形成されることを特徴とする、請求項1から9のいずれか一項に記載の発光素子。
- 前記第1半導体層は、アルミニウムの組成比が5%〜30%の範囲を有することを特徴とする、請求項10に記載の発光素子。
- 前記第2及び第3半導体層は、前記第1半導体層の厚さより薄い厚さを有することを特徴とする、請求項6に記載の発光素子。
- 前記第2半導体層及び前記第3半導体層は、前記第1井戸層の厚さより薄い厚さを有することを特徴とする、請求項6に記載の発光素子。
- 前記第1半導体層と前記第1井戸層の厚さの差は、前記第2半導体層と前記第1半導体層の厚さの差より小さいことを特徴とする、請求項1から13のいずれか一項に記載の発光素子。
- 前記第2半導体層は、前記第3半導体層の厚さと同じ厚さを有することを特徴とする、請求項12から14のいずれか一項に記載の発光素子。
- 前記井戸層は、ガリウムと窒素を含む三元系または四元系の化合物半導体から形成されることを特徴とする、請求項1から15のいずれか一項に記載の発光素子。
- 前記井戸層は、1%〜5%の範囲のインジウム組成比を有する半導体を含むことを特徴とする、請求項1から16のいずれか一項に記載の発光素子。
- 前記井戸層は、AlGaN材質の半導体を含むことを特徴とする、請求項1から16のいずれか一項に記載の発光素子。
- 前記活性層は、385nm以下の波長の光を放出することを特徴とする、請求項1から18のいずれか一項に記載の発光素子。
- 前記第1導電型半導体層と前記活性層との間にクラッド層を含むことを特徴とする、請求項1から19のいずれか一項に記載の発光素子。
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