JP4654942B2 - 面状照明装置 - Google Patents
面状照明装置 Download PDFInfo
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- JP4654942B2 JP4654942B2 JP2006052264A JP2006052264A JP4654942B2 JP 4654942 B2 JP4654942 B2 JP 4654942B2 JP 2006052264 A JP2006052264 A JP 2006052264A JP 2006052264 A JP2006052264 A JP 2006052264A JP 4654942 B2 JP4654942 B2 JP 4654942B2
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- 229910000679 solder Inorganic materials 0.000 claims description 25
- 239000004020 conductor Substances 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 24
- 238000005286 illumination Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000005476 soldering Methods 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 1
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- 230000017525 heat dissipation Effects 0.000 description 10
- 239000011342 resin composition Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 239000004642 Polyimide Substances 0.000 description 6
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- 239000000463 material Substances 0.000 description 5
- 239000011889 copper foil Substances 0.000 description 4
- 239000006071 cream Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
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- 229910052751 metal Inorganic materials 0.000 description 3
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- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 2
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- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
- H05K1/112—Pads for surface mounting, e.g. lay-out directly combined with via connections
-
- 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]
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
-
- 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
- H01L33/64—Heat extraction or cooling elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
- H05K1/0206—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate by printed thermal vias
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3431—Leadless components
- H05K3/3442—Leadless components having edge contacts, e.g. leadless chip capacitors, chip carriers
-
- 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
- H01L33/64—Heat extraction or cooling elements
- H01L33/641—Heat extraction or cooling elements characterized by the materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0209—Inorganic, non-metallic particles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09072—Hole or recess under component or special relationship between hole and component
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/0979—Redundant conductors or connections, i.e. more than one current path between two points
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10621—Components characterised by their electrical contacts
- H05K2201/10636—Leadless chip, e.g. chip capacitor or resistor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
- H05K3/0061—Laminating printed circuit boards onto other substrates, e.g. metallic substrates onto a metallic substrate, e.g. a heat sink
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
- H05K3/305—Affixing by adhesive
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Led Device Packages (AREA)
- Planar Illumination Modules (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Description
これによって、点状光源の実装時に、溶融した半田が点状光源の電極端子を表面張力により引き込みつつスルーホールに流入するため、点状光源を、その電極端子とランド部との間に介在する半田層を十分に薄くかつ一定に保持しつつプリント基板上に実装することができる。これによって、点状光源を、プリント基板からの高さを高精度に揃えつつ高い実装強度で実装することが可能となると共に、点状光源の実装面とプリント基板との間の間隙(空気層)が縮小され、放熱効果が更に向上する。そして、本発明によれば、点状光源の実装面とプリント基板との間の間隙が薄くかつ一定であることにより、熱伝導性樹脂の充填量の制御を容易に実施でき、熱伝導樹脂と点状光源の実装面とを確実に接触させることができる。
この構成により、プリント基板の裏側面に伝達された熱を更に効率的に放熱することができる。
まず、ポリイミド等からなるベースフィルム6の両主面上に銅箔を張り合せてなる銅張積層板に、必要な導通用のスルーホールと共にランド部26のスルーホール41を形成し、エッチング等により導体パターン7F、7Rを形成する。次いで、所定形状に形成されたカバーフィルム8F、および(必要な場合には)カバーフィルム8Rを熱圧着等により積層してFPC10が完成する。
次いで、完成したFPC10上に、加熱リフローソルダリング法によりLED3を実装する。すなわち、スルーホール41が形成されたランド部26上にペースト状のクリーム半田を塗布し、次いで、LED3を、その電極端子3aがランド部26上の所定の位置に配置されるようにマウントする。次いで、リフロー装置によりLED3がマウントされたFPC10を加熱して、クリーム半田を溶融した後、冷却して固化する。
最後に、FPC10の裏面10Rと放熱板5aとを熱伝導テープを介して固着し、FPC10を放熱板5aに取り付ける。これによって、光源部30が完成する。
まず、ポリイミド等からなるベースフィルム46の両主面上に銅箔を張り合せてなる銅張積層板に、必要な導通用のスルーホールと共にランド部26のスルーホール41を形成し、エッチング等により導体パターン47F、47Rを形成する。次いで、ケミカルエッチング等によりベースフィルム46の表面40F側の所定の箇所に開口部51を形成する。次いで、所定形状に形成されたカバーフィルム48F、および(必要な場合には)カバーフィルム48Rを熱圧着等により積層してFPC40が完成する。
次いで、FPC40の凹部53に熱伝導樹脂51を充填した後、参考例における光源部30の製作工程と同様の加熱リフローソルダリング法によりLED3を実装する。
最後に、FPC40の裏面40Rと放熱板5aとを熱伝導テープ55を介して固着し、FPC50を放熱板5aに取り付ける。これによって、光源部50が完成する。
Claims (2)
- 導光板と、該導光板の側端面に配置される点状光源と、該点状光源が表側面に実装される両面プリント基板からなるプリント基板とを有する面状照明装置において、前記プリント基板の、前記点状光源が実装されるランド部にスルーホールが形成され、前記スルーホールの少なくとも一部に半田が充填されるとともに、前記プリント基板の表側面の一部に凹部が形成され、前記凹部の底面は前記プリント基板の裏側面の導体パターンからなり、前記凹部と前記点状光源の実装面とで構成される空間に熱伝導樹脂が充填されており、
前記スルーホールの少なくとも一部に充填された半田は、加熱リフローソルダリング法における加熱工程中に充填された半田からなり、前記熱伝導樹脂は、加熱リフローソルダリング法による前記点状光源の実装工程内において前記凹部に充填された流動性のある熱伝導性樹脂からなることを特徴とする面状照明装置。 - 前記プリント基板の裏側面の、少なくとも前記スルーホールが形成されている領域には、前記スルーホールに施されたメッキ膜と連続する導体パターンが形成されていることを特徴とする請求項1に記載の面状照明装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006052264A JP4654942B2 (ja) | 2006-02-28 | 2006-02-28 | 面状照明装置 |
US11/707,884 US7532479B2 (en) | 2006-02-28 | 2007-02-20 | Spread illuminating apparatus |
EP07003621A EP1827063A3 (en) | 2006-02-28 | 2007-02-22 | Spread illuminating apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006052264A JP4654942B2 (ja) | 2006-02-28 | 2006-02-28 | 面状照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007234303A JP2007234303A (ja) | 2007-09-13 |
JP4654942B2 true JP4654942B2 (ja) | 2011-03-23 |
Family
ID=38068585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006052264A Expired - Fee Related JP4654942B2 (ja) | 2006-02-28 | 2006-02-28 | 面状照明装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7532479B2 (ja) |
EP (1) | EP1827063A3 (ja) |
JP (1) | JP4654942B2 (ja) |
Families Citing this family (41)
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GB2448270B (en) * | 2006-02-10 | 2012-02-08 | Innovatech Ltd | Circuit board and radiating heat system for circuit board |
TWI342974B (en) * | 2006-07-06 | 2011-06-01 | Chimei Innolux Corp | Liquid crystal display and backlight module thereof |
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KR101367132B1 (ko) * | 2006-12-05 | 2014-02-25 | 삼성디스플레이 주식회사 | 광원유닛, 발광 장치 및 이를 구비한 표시 장치 |
US7898811B2 (en) * | 2007-04-10 | 2011-03-01 | Raled, Inc. | Thermal management of LEDs on a printed circuit board and associated methods |
US20080298023A1 (en) * | 2007-05-28 | 2008-12-04 | Matsushita Electric Industrial Co., Ltd. | Electronic component-containing module and manufacturing method thereof |
TWM332216U (en) * | 2007-10-09 | 2008-05-11 | Wistron Corp | Auxiliary mechanism |
TWI343233B (en) * | 2007-10-19 | 2011-06-01 | Au Optronics Corp | Circuit board assembly and backlight module comprising the same |
WO2009055550A2 (en) * | 2007-10-25 | 2009-04-30 | Nexxus Lighting, Inc. | Apparatus and methods for thermal management of electronic devices |
TW200934986A (en) * | 2008-02-01 | 2009-08-16 | jia-cheng Zhang | Structure of lamp with low-temperature characteristics |
KR101534659B1 (ko) * | 2008-12-31 | 2015-07-07 | 서울반도체 주식회사 | 연성 인쇄회로기판 및 이를 갖는 백라이트 유닛 |
JP5276053B2 (ja) * | 2009-07-14 | 2013-08-28 | Ckd株式会社 | 熱式流量計 |
US8101962B2 (en) * | 2009-10-06 | 2012-01-24 | Kuang Hong Precision Co., Ltd. | Carrying structure of semiconductor |
KR101105006B1 (ko) | 2009-10-28 | 2012-01-16 | 이용현 | 엘이디방열어셈블리 및 엘이디방열어셈블리의 제조방법 |
KR101656100B1 (ko) * | 2009-11-23 | 2016-09-08 | 엘지디스플레이 주식회사 | 다층 인쇄회로기판 및 이를 포함하는 액정표시장치 |
US8248803B2 (en) * | 2010-03-31 | 2012-08-21 | Hong Kong Applied Science and Technology Research Institute Company Limited | Semiconductor package and method of manufacturing the same |
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Also Published As
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EP1827063A3 (en) | 2009-11-25 |
US7532479B2 (en) | 2009-05-12 |
EP1827063A2 (en) | 2007-08-29 |
JP2007234303A (ja) | 2007-09-13 |
US20070201247A1 (en) | 2007-08-30 |
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