JP5396003B2 - Led素子の製造方法 - Google Patents
Led素子の製造方法 Download PDFInfo
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- JP5396003B2 JP5396003B2 JP2007000456A JP2007000456A JP5396003B2 JP 5396003 B2 JP5396003 B2 JP 5396003B2 JP 2007000456 A JP2007000456 A JP 2007000456A JP 2007000456 A JP2007000456 A JP 2007000456A JP 5396003 B2 JP5396003 B2 JP 5396003B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 36
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 62
- 238000000034 method Methods 0.000 claims description 23
- 239000004065 semiconductor Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 150000004767 nitrides Chemical class 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 238000004544 sputter deposition Methods 0.000 claims description 9
- 229910052712 strontium Inorganic materials 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 229910052788 barium Inorganic materials 0.000 claims description 5
- 239000002223 garnet Substances 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229910052706 scandium Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 4
- 239000013077 target material Substances 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 150000004760 silicates Chemical class 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- NHYCGSASNAIGLD-UHFFFAOYSA-N chlorine monoxide Inorganic materials Cl[O] NHYCGSASNAIGLD-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 13
- 239000000758 substrate Substances 0.000 description 13
- 238000000465 moulding Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000004549 pulsed laser deposition Methods 0.000 description 3
- 229910002704 AlGaN Inorganic materials 0.000 description 2
- 229910052693 Europium Inorganic materials 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000005477 sputtering target Methods 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910004541 SiN Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052757 nitrogen 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
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/58—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing copper, silver or gold
- C09K11/582—Chalcogenides
- C09K11/584—Chalcogenides with zinc or cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7701—Chalogenides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7729—Chalcogenides
- C09K11/7731—Chalcogenides with alkaline earth metals
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7737—Phosphates
- C09K11/7738—Phosphates with alkaline earth metals
- C09K11/7739—Phosphates with alkaline earth metals with halogens
-
- 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
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
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- 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
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
-
- 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
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
- H01L2224/85909—Post-treatment of the connector or wire bonding area
- H01L2224/8592—Applying permanent coating, e.g. protective coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
-
- 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
- H01L33/508—Wavelength conversion elements having a non-uniform spatial arrangement or non-uniform concentration, e.g. patterned wavelength conversion layer, wavelength conversion layer with a concentration gradient of the wavelength conversion material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
- Luminescent Compositions (AREA)
Description
本発明の実施例は添付した図面に示した構造を持つLEDチップだけに限定して適用したものではない。図示したLEDチップは単に一つの例を表しているだけである。すなわち、本発明に適用されることができるLEDチップは、所定の構造を持つ発光構造物と、この発光構造物を外部に連結するための電極パッドとを具備していれば十分である。
310 LEDチップ
320a、320b 電極パッド
325 マスクパターン
330 蛍光体膜
Claims (10)
- LED素子を製造する製造方法であって、
半導体層を含む積層構造を有し、主光を放出する発光構造体を形成する段階と、
前記積層構造の表面と接触する電極パッドを形成する段階と、
前記電極パッドの上部面にマスクを形成する段階と、
前記積層構造の表面において、前記電極パッドが形成された領域を除いた残りの部分に、前記電極パッドの側面の少なくとも一部を覆うように前記主光を一つ以上の他の光波長に変換させる蛍光体が均一に分散した蛍光体膜を直接に形成する段階と、
前記マスクを除去する段階と、
を備え、
前記蛍光体膜の厚さは、前記電極パッドの厚さより小さく、前記電極パッドの少なくとも一つは前記蛍光体膜上に突出して全体上部面に露出され、
前記蛍光体膜を形成する段階において、前記蛍光体膜はSiO 2 またはSiOを含む酸化物系、窒化物系、エポキシ(epoxy)樹脂またはシリコン(silicone)樹脂の中の少なくとも一つの物質に青色光蛍光体、緑色光蛍光体、黄色光蛍光体または赤色光蛍光体の二つ以上の蛍光体が混合されたターゲット物質をスパッタリング法またはレーザーパルス法を用いて前記積層構造の表面に形成することを特徴とするLED素子の製造方法。 - 前記発光構造体を形成する段階において、前記表面から見て第1半導体層、発光層、および、第2半導体層をこの順で含み、且つ、前記第2半導体層の一部の領域には前記発光層および前記第1半導体層が設けられない前記発光構造体を形成し、
前記電極パッドを形成する段階において、前記第1半導体層と電気的に接続される第1の前記電極パッドと、前記発光層および前記第1半導体層が設けられない領域の前記第2半導体層と電気的に接続される第2の前記電極パッドとを形成することを特徴とする請求項1に記載のLED素子の製造方法。 - 前記発光構造体を形成する段階において、前記第1半導体層の表面に形成される透明電極層を更に含む前記積層構造を形成し、
前記電極パッドを形成する段階において、前記第1の電極パッドは、前記透明電極層に接続されることを特徴とする請求項2に記載のLED素子の製造方法。 - 前記窒化物系はSiN、AlN、GaN、InNまたはこれらの混合物の中の少なくとも一つを含むことを特徴とする請求項1に記載のLED素子の製造方法。
- 前記青色光蛍光体はBaMgAl10O17:Eu、Sr5(PO4)3Cl:Eu、ZnS:Agの中の少なくとも一つ以上を含むことを特徴とする請求項1に記載のLED素子の製造方法。
- 前記緑色光蛍光体はZnS:Cu、(Ca、Sr)S:Eu等の黄化物系、(Sr、Ba、Ca、Mg、Zn、Cd、Y、Sc、La)xSiyOz:(Eu、F、Mn、Ce、Pb)のシリケート(silicate)系またはBaMgAl10O17:Eu、Mnの中の少なくとも一つ以上を含むことを特徴とする請求項1または5に記載のLED素子の製造方法(但し、ここでX、Y、Zは0から1まで変えることが可能で、括弧の中の元素は一つ以上で組合可能である)。
- 前記黄色光蛍光体はYAG系、TAG系を含むガーネット(garnet)系列、シリケート系列の中の少なくとも一つ以上を含むことを特徴とする請求項1、5、6のいずれか一項に記載のLED素子の製造方法。
- 前記赤色光蛍光体は窒化物系、Y2O2S等の黄化物系、Y(V、P、B、Nb、Ta)O4:Eu3+の中の少なくとも一つ以上を含むことを特徴とする請求項1、5、6、7のいずれか一項に記載のLED素子の製造方法。
- 前記酸化物系はSiO2、SiO、Al2O3、ZnO、ClO、ITO、InOの中の一つ以上の物質を含むことを特徴とする請求項1に記載のLED素子の製造方法。
- 前記発光構造体の少なくとも一面に、発光効率を向上させるための凹凸または散乱の構造を形成する請求項1ないし9のいずれか一項に記載のLED素子の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020060002374A KR100658970B1 (ko) | 2006-01-09 | 2006-01-09 | 복합 파장의 광을 발생시키는 발광 다이오드 소자 |
KR10-2006-0002374 | 2006-01-09 |
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JP2010175622A Division JP5311582B2 (ja) | 2006-01-09 | 2010-08-04 | Led素子並びにこのled素子を用いたバックライト装置及びディスプレー装置 |
Publications (2)
Publication Number | Publication Date |
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JP2007184615A JP2007184615A (ja) | 2007-07-19 |
JP5396003B2 true JP5396003B2 (ja) | 2014-01-22 |
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JP2007000456A Active JP5396003B2 (ja) | 2006-01-09 | 2007-01-05 | Led素子の製造方法 |
JP2010175622A Active JP5311582B2 (ja) | 2006-01-09 | 2010-08-04 | Led素子並びにこのled素子を用いたバックライト装置及びディスプレー装置 |
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JP2010175622A Active JP5311582B2 (ja) | 2006-01-09 | 2010-08-04 | Led素子並びにこのled素子を用いたバックライト装置及びディスプレー装置 |
Country Status (3)
Country | Link |
---|---|
US (2) | US7965036B2 (ja) |
JP (2) | JP5396003B2 (ja) |
KR (1) | KR100658970B1 (ja) |
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US7795600B2 (en) * | 2006-03-24 | 2010-09-14 | Goldeneye, Inc. | Wavelength conversion chip for use with light emitting diodes and method for making same |
KR100823089B1 (ko) * | 2006-11-06 | 2008-04-18 | 서울옵토디바이스주식회사 | 파장변환 물질층을 갖는 발광 다이오드 제조방법 |
KR101144634B1 (ko) * | 2007-01-25 | 2012-05-08 | 서울반도체 주식회사 | 형광 발광다이오드 및 그 제조방법 |
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JP2010103522A (ja) | 2008-10-21 | 2010-05-06 | Seoul Opto Devices Co Ltd | 遅延蛍光体を備える交流駆動型の発光素子及び発光素子モジュール |
JP4724222B2 (ja) | 2008-12-12 | 2011-07-13 | 株式会社東芝 | 発光装置の製造方法 |
KR101046046B1 (ko) * | 2008-12-22 | 2011-07-01 | 삼성엘이디 주식회사 | 백색 발광 장치 |
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JP5185338B2 (ja) * | 2010-08-09 | 2013-04-17 | 株式会社東芝 | 発光装置 |
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