JP2008518434A - 改善されたヒートシンクを備える半導体発光装置 - Google Patents
改善されたヒートシンクを備える半導体発光装置 Download PDFInfo
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- 229910010271 silicon carbide Inorganic materials 0.000 description 5
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- 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
- H01L33/647—Heat extraction or cooling elements the elements conducting electric current to or from the semiconductor body
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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
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
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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
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
- H05K1/183—Components mounted in and supported by recessed areas of the printed circuit board
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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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
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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
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
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- 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
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0075—Processes relating to semiconductor body packages relating to heat extraction or cooling elements
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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
- H01L33/48—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
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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- H—ELECTRICITY
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- 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
- H01L33/642—Heat extraction or cooling elements characterized by the shape
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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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/06—Thermal details
- H05K2201/066—Heatsink mounted on the surface of the printed circuit board [PCB]
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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- 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]
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Abstract
Description
図1に示されている発光装置の製造の方法の例は、以下に記載され、図2において概説されている。
(i)回路の作製
当該方法は、この実施例において前記穴内に突起物を形成する前記回路及び熱バンプの作製によって開始する。
約625μmの厚さのシリコン基板が準備される。前記シリコン基板の前記回路の側となるべき側部に、マスク内に穴を残して(該穴が、前記突起物のための位置を規定していた)硬いエッチングマスク(0.5μmのSiO2)が成長され、パターニングされ、後続してKOHが前記穴内を5−20μmの深さまでエッチングし、SiO2が、前記基板から剥がされた。
次いで、誘電材料Si3N4が、前記突起部のための位置においては前記誘電材料内に穴を残して、前記基板と前記回路との間の電気的絶縁を設けるように、前記回路側の基板上に堆積され、パターニングされた。
前記回路は、厚い(1−5μm)アルミニウム層を堆積しパターニングすることによって、前記基板上に設けられ、前記回路上に、高い熱伝導率を有する薄い(〜100nm)誘電層(AlN)が、環境から(特に前記ヒートシンクから)前記回路を絶縁するためにスパッタリングされた。
前記熱バンプは、前記LEDに電気的に接続されておらず、従って、このAlN層は、前に、エッチング(70℃ KOHエッチング)によって前記熱バンプから除去されることができ、前記ヒートシンクへの熱的かつ電気的接続を提供した。更に、前記ヒートシンクが、前記LEDの電気的アースとして働いているので、前記AlN材料が、前記回路の前記ヒートシンクへの接地接続として働く部分から除去されることもできた。更に、前記回路の(前記ヒートシンクに覆われるべきではない)1つの領域において、前記AlN材料は、前記回路の、当該装置の前記ヒートシンク側を囲んでいるものに接触されるべきである領域を提供するために、除去される(図2a)。
次いで、前記基板は、グラインド及びウェットダメージエッチングによって、前記基板の前記LED側から、ほぼ前記LEDの厚さ(〜200μm)まで薄くされた。硬いエッチングマスク(Cr/Cu)が、前記基板の前記LED側に堆積され、前記穴の前記領域を規定するようにパターニングされた。
前記中間ヒートシンクを堆積させるために、めっきベース(Cr/Cu)が前記基板上の前記回路側にスパッタリングされ、厚い(20−100μm)レジストが前記中間ヒートシンクのための前記場所を規定するために前記めっきベース上にパターニングされた。次いで、前記中間ヒートシンク(銅 〜50μm)が、前記規定されている位置において前記めっきベース上においてめっきされた(図2b)。
前記レジストを除去した後、穴、即ち前記のような予め堆積された硬いエッチングマスクによって規定されている領域が、前記基板の前記LED側から、前記回路及び/又は前記回路が堆積されている前記誘電Si3N4材料まで、エッチングで下げられた。このステップの間、前記基板の前記回路側は、前記めっきベース及び前記ヒートシンクによって前記エッチングから保護されていた。
この後、前記めっきベースがウェットエッチングによって除去され、このエッチングにより、前記基板の前記LED側から前記硬いエッチングマスクも除去された(図2c)。
前記回路の、今や前記穴内で接触していると共に、前記穴内に突起部を形成している部分に、無電解成長(electro-less growth)によって、はんだウェット層Ni/Auが設けられる。このステップの間、Ni/Au層は、前記基板の前記回路側における前記のような銅の中間ヒートシンク上に堆積されることもでき、このことは、前記銅の中間ヒートシンクが腐食するのを防止する。
最後に、前記LEDは、前記回路と前記下充填材とにはんだ付けされることができ、前記装置は、CuWヒートシンクにはんだ付けされている(図2d)。
前記中間ヒートシンクをめっきする前に、前記回路が堆積されているSiO2層と、前記中間ヒートシンクから前記回路を絶縁している前記熱伝導誘電材料とが、前記基板材料に接触するための、小さい領域から除去される。前記中間ヒートシンクがめっきされている場合、従って、前記材料のリングが、前記接触される領域の周りにめっきされる。従って、前記基板の前記LED側における穴をエッチングするステップの間、接触される前記領域は保護されておらず、従って、貫通基板ビアホールが、前記所望の位置において得られる。
Claims (10)
- 基板と、回路と、前記回路に電気的に接触されているLEDと、前記LEDから熱を輸送するように配されているヒートシンクとを有する発光装置であって、前記LEDは、前記基板内の穴を介して前記ヒートシンクに熱的に接触されていることを特徴とする、発光装置。
- 前記LEDは、前記回路を介して少なくとも部分的に、前記ヒートシンクと熱的に接触している、請求項1に記載の発光装置。
- 前記LEDは、前記基板内の前記穴を介して前記回路に接続されている、請求項1又は2に記載の発光装置。
- 前記回路は、前記ヒートシンク上に配されており、前記LEDは前記回路上に配されている、請求項3に記載の発光装置。
- 前記LEDは、少なくとも部分的に前記穴内に配されている、請求項1ないし4の何れか一項に記載の発光装置。
- 前記回路は、前記穴内の突起部を形成している、請求項3ないし5の何れか一項に記載の発光装置。
- 前記基板内の第1の穴を介して第1のヒートシンクに熱的に接続されている第1のLEDと、前記基板内の第2の穴を介して前記第2のヒートシンクに熱的に接続されている第2のLEDとを有している、請求項1ないし6の何れか一項に記載の発光装置。
- − 基板、回路、ヒートシンク及びLEDを準備するステップと、
− 前記基板上に前記回路を配するステップと、
− 前記基板内に穴を得るステップと、
− 前記回路に電気的に接続されている前記LEDを配するステップと、
− 前記LEDに熱的に接続されている前記ヒートシンクを配するステップと、
を有する発光装置の製造のための方法であって、前記熱的接続は前記穴を介して有効にされる、方法。 - 前記電気的接続は前記穴を介して有効にされる、請求項8に記載の方法。
- 前記穴は、エッチングによって得られる、請求項8又は9に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04105248.1 | 2004-10-22 | ||
EP04105248 | 2004-10-22 | ||
PCT/IB2005/053403 WO2006043234A1 (en) | 2004-10-22 | 2005-10-17 | Semiconductor light-emitting device with improved heatsinking |
Publications (2)
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JP2008518434A true JP2008518434A (ja) | 2008-05-29 |
JP5097550B2 JP5097550B2 (ja) | 2012-12-12 |
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JP2007537447A Expired - Fee Related JP5097550B2 (ja) | 2004-10-22 | 2005-10-17 | 改善されたヒートシンクを備える半導体発光装置 |
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US (1) | US7891836B2 (ja) |
EP (1) | EP1805809B1 (ja) |
JP (1) | JP5097550B2 (ja) |
KR (1) | KR101243691B1 (ja) |
CN (1) | CN100550442C (ja) |
TW (1) | TW200620710A (ja) |
WO (1) | WO2006043234A1 (ja) |
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JP2010541221A (ja) * | 2007-09-28 | 2010-12-24 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 1次放射源と発光変換エレメントとを備えた半導体光源 |
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JP5205806B2 (ja) * | 2007-05-09 | 2013-06-05 | 三菱化学株式会社 | Ledチップ固定用基板およびその製造方法 |
US7791096B2 (en) | 2007-06-08 | 2010-09-07 | Koninklijke Philips Electronics N.V. | Mount for a semiconductor light emitting device |
CN101463985B (zh) * | 2007-12-21 | 2010-12-08 | 富士迈半导体精密工业(上海)有限公司 | 发光二极管灯具 |
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US8507940B2 (en) | 2010-04-05 | 2013-08-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | Heat dissipation by through silicon plugs |
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CN107425103B (zh) * | 2011-08-22 | 2019-12-27 | Lg伊诺特有限公司 | 发光器件封装件和光装置 |
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CN102403418A (zh) * | 2011-11-09 | 2012-04-04 | 东莞勤上光电股份有限公司 | 一种大功率led的散热结构的制作方法 |
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US9648750B2 (en) | 2014-09-30 | 2017-05-09 | Rsm Electron Power, Inc. | Light emitting diode (LED) assembly and flexible circuit board with improved thermal conductivity |
KR102188960B1 (ko) * | 2017-01-13 | 2020-12-10 | 한국전자통신연구원 | 광학 장치, 분포 브라그 반사형 레이저 다이오드의 제조방법, 및 광학 장치의 제조 방법 |
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- 2005-10-17 JP JP2007537447A patent/JP5097550B2/ja not_active Expired - Fee Related
- 2005-10-17 CN CNB2005800360932A patent/CN100550442C/zh not_active Expired - Fee Related
- 2005-10-17 WO PCT/IB2005/053403 patent/WO2006043234A1/en active Application Filing
- 2005-10-17 KR KR1020077011531A patent/KR101243691B1/ko active IP Right Grant
- 2005-10-17 EP EP05791939.1A patent/EP1805809B1/en not_active Not-in-force
- 2005-10-19 TW TW094136608A patent/TW200620710A/zh unknown
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JP2010541221A (ja) * | 2007-09-28 | 2010-12-24 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 1次放射源と発光変換エレメントとを備えた半導体光源 |
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Also Published As
Publication number | Publication date |
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JP5097550B2 (ja) | 2012-12-12 |
TW200620710A (en) | 2006-06-16 |
KR101243691B1 (ko) | 2013-03-14 |
CN101044636A (zh) | 2007-09-26 |
US20080068842A1 (en) | 2008-03-20 |
WO2006043234A1 (en) | 2006-04-27 |
EP1805809A1 (en) | 2007-07-11 |
US7891836B2 (en) | 2011-02-22 |
KR20070070228A (ko) | 2007-07-03 |
CN100550442C (zh) | 2009-10-14 |
EP1805809B1 (en) | 2019-10-09 |
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