JP5687200B2 - マルチチップ発光ダイオードモジュール - Google Patents
マルチチップ発光ダイオードモジュール Download PDFInfo
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- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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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
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/056—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an organic insulating layer
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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
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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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
- H01L33/483—Containers
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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
- H01L33/58—Optical field-shaping elements
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- H—ELECTRICITY
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- 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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- 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
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/0112—Absorbing light, e.g. dielectric layer with carbon filler for laser processing
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- H—ELECTRICITY
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- 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]
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Description
[発明の分野]
本発明は、広くは電子デバイス実装に関し、より具体的には、例えば発光ダイオード(LEDs)等の発光デバイス用のマルチチップモジュール(MCMsまたはMCM)に関する。
[関連技術の説明]
輝度及び色忠実度の増したLEDや他の発光デバイスの出現に伴って、マルチチップ照明モジュールは、光束出力をさらに高めるために、利用できるようになってきた。照明用MCMは、一般的には複数のLEDを有する単一のパッケージを備えるが、他の発光デバイスを用いてもよいことは理解されよう。これらのMCMは、複数の発光デバイスを備えるので、一般的に高出力の発光が可能になる。しかしながら、LED等の発光デバイスに付随する共通の問題は、デバイスチップから発光された光が概して無指向性かつ不均一であるということであり、この共通の問題がMCMの発光効率や光学的効率に悪い影響を与え得る。
[発明の概要]
本発明は、より低コストで複雑性も低い、カスタマイズ可能な小型パッケージにおいて、光束出力及び熱放散を高めることが可能なマルチチップ照明モジュール用のシステム及び装置を提供する。一実施形態は、放熱性の基板を有するマルチチップモジュールデバイスを備える。複数の発光デバイスが含まれ、基板の表面には導電層が付加される。導電層は、それぞれが発光デバイスのうちの少なくとも1つを担持する面を有する複数のチップ担持部を備える。導電層を少なくとも部分的に覆う反射層も含まれる。
以下の説明において、いくつかの可能な実施形態が提示されている。この説明は、限定的な意味で解釈されるべきものではなく、単に本発明の一般的な原理を説明する目的で行われているものであり、本発明の範囲は添付の特許請求の範囲によって、さらに理解される。
次に、図15を参照して、実施可能な実施形態に係るMCMを製造する方法100を示す。任意の工程は破線を用いた四角枠で図示している。まず、工程102において、種々の条件を満足する種々の材料から形成できる放熱性の基板を用意するが、好ましい元素は、上述のようにアルミニウムである。次に、第2の工程104において、基板の上面のほぼ全域に絶縁層を堆積するが、絶縁層は暗色または黒色の材料を備えるのが好ましい。任意の工程106においては、プリント回路基板等の回路層を、絶縁層の最上部の上に、印刷・焼成してもよい。
Claims (16)
- 放熱性を有する基板であって、その表面に堆積された暗色の絶縁層を備える基板と、
夫々がアノードまたはカソードに電気的に接続された複数の発光デバイスと
前記基板の表面に付加された前記絶縁層上の導電層であって、該導電層が複数のチップ担持部を備え、該複数のチップ担持部のそれぞれが、第1電気端子及び第2電気端子を有する前記発光デバイスの少なくとも1つを担持する面であって、対応する前記発光デバイスの第1電気端子または第2電気端子と電気的に結合する面を有する導電層と、
前記導電層及び前記絶縁層を、少なくとも部分的に覆う反射層と、
を備えるマルチチップモジュールデバイス。 - 前記導電層は、Alを備え、前記基板の前記暗色の絶縁層は黒色である請求項1記載のデバイス。
- 前記基板は、さらに、前記基板上に回路層を備え、前記回路層は、前記絶縁層と前記導電層との間にある請求項1記載のデバイス。
- 前記導電層は、さらに複数の接続部を備える請求項1記載のデバイス。
- 前記発光デバイスは、はんだパッドまたはフリップチップ実装を用いて、前記チップ担持部及び前記接続部の少なくとも一方に、電気的にかつ熱的に結合される請求項4記載のデバイス。
- 前記アノードの夫々は、前記チップ担持部に対して電気的にかつ熱的に直接結合されている請求項1記載のデバイス。
- 前記カソードの夫々は、ワイヤボンドを介して、前記チップ担持部に電気的に接続されている請求項5記載のデバイス。
- 前記アノード及びカソードの夫々は、ワイヤボンドを介して、前記チップ担持部及び/または前記接続部に電気的に接続されている請求項6記載のデバイス。
- 前記反射層は、前記導電層の、発光デバイス及びワイヤボンドによって占有されていない部分を覆う請求項1記載のデバイス。
- 前記基板及び前記導電層を少なくとも部分的に覆う分離層をさらに備え、前記分離層は、前記発光デバイスと前記導電層との間での接続を可能とする孔を備える請求項1記載のデバイス。
- 前記導電層及び前記反射層の上には、電気絶縁性及び熱伝導性を有する保護層が少なくとも部分的に堆積され、前記保護層内にはキャビティが形成されている請求項1記載のデバイス。
- 前記発光デバイスの上方に、レンズまたはコリメータが設けられた請求項1記載のデバイス。
- 前記発光デバイスは、赤色、緑色、青色、もしくは、白色、または、これらの二色以上の組み合わせの色を発光する請求項1記載のデバイス。
- 前記導電層及び前記回路層は、低い熱抵抗、及び、放熱を可能とする熱的な接触状態にある請求項3記載のデバイス。
- マルチチップモジュール用のリードフレームであって、
前記リードフレームは、
複数の導電性発光デバイスチップ担持部であって、該担持部のそれぞれが、第1電気端子及び第2電気端子を有する少なくとも1つの発光デバイスを担持する面を有し、前記チップ担持部の前記チップ担持面に対しては、前記発光デバイスのそれぞれの前記第1端子が、電気的に結合されている、複数の導電性発光デバイスチップ担持部と、
前記チップ担持部とは離れて設けられた複数の導電性接続部であって、該接続部のそれぞれが少なくとも1つの接続パッドを有する、複数の導電性接続部と、
を備え、
前記発光デバイスのそれぞれの前記第2端子は、前記接続部の対応する1つの、前記接続パッドの少なくとも1つと電気的に結合されており、
前記リードフレームは、暗色の絶縁層が堆積された基板上に形成され、さらに、前記リードフレームは、前記絶縁層と共に少なくとも部分的に反射層に覆われているリードフレーム。 - マルチチップ照明モジュールデバイスの製造方法であって、
放熱性を有する基板を用意することと、
前記基板の上面の全面上に、暗色の絶縁層を堆積させることと、
前記絶縁層の表面を少なくとも部分的に覆う導電層を付加することと、
複数の発光デバイスを前記導電層の部分に電気的に結合させ、さらに、前記発光デバイスの夫々を、アノード及びカソードに電気的に接続することと、
前記導電層及び絶縁層を少なくとも部分的に覆う反射層を堆積させることと、
を備える方法。
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EP (1) | EP2351112A4 (ja) |
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-
2008
- 2008-11-07 US US12/291,293 patent/US8791471B2/en active Active
-
2009
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- 2009-11-05 EP EP09824413A patent/EP2351112A4/en not_active Withdrawn
- 2009-11-05 JP JP2011534993A patent/JP5687200B2/ja active Active
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CN102272951B (zh) | 2013-03-06 |
JP2012508457A (ja) | 2012-04-05 |
US8791471B2 (en) | 2014-07-29 |
KR20110095301A (ko) | 2011-08-24 |
WO2010051758A1 (en) | 2010-05-14 |
EP2351112A4 (en) | 2013-03-13 |
US20100117099A1 (en) | 2010-05-13 |
EP2351112A1 (en) | 2011-08-03 |
CN102272951A (zh) | 2011-12-07 |
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