JP5279225B2 - 発光モジュールおよびその製造方法 - Google Patents
発光モジュールおよびその製造方法 Download PDFInfo
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- JP5279225B2 JP5279225B2 JP2007247875A JP2007247875A JP5279225B2 JP 5279225 B2 JP5279225 B2 JP 5279225B2 JP 2007247875 A JP2007247875 A JP 2007247875A JP 2007247875 A JP2007247875 A JP 2007247875A JP 5279225 B2 JP5279225 B2 JP 5279225B2
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- 239000000463 material Substances 0.000 description 26
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- 229910001111 Fine metal Inorganic materials 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
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- H01L2924/12—Passive devices, e.g. 2 terminal devices
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- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
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Description
本形態では、図1から図3を参照して、発光モジュール10の構成を説明する。
次に、図4から図13を参照して、上記した構成の発光モジュール10の製造方法を説明する。
図4を参照して、先ず、発光モジュール10の基材となる基板40を用意して、導電パターンを形成する。
図5を参照して、次に、基板40の各ユニット46に関して、絶縁層を部分的に除去して開口部48を設ける。
図6を参照して、次に、開口部48から露出する基板40の上面から凹部18を形成する。凹部18の形成は、選択的なエッチング、ドリル加工、プレス加工等により可能であるが、本工程ではプレス加工を採用した。
本工程では、各ユニット46同士の間に分離用の分離溝(第1溝54および第2溝56)を設けると共に、各ユニット46に、曲折のための溝58を設ける。本工程では、高速で回転するカットソーにより、これらの溝を一括して形成することができる。
本工程では、開口部48から露出する基板40の表面を被覆層34により被覆する。
次に、各ユニット46の凹部18に発光素子20(LEDチップ)を実装して、電気的に接続する。
次に、基板40に設けた各ユニット46の凹部に封止樹脂32を充填させて、発光素子20を封止する。封止樹脂32は、蛍光体が混入されたシリコン樹脂からなり、液状または半固形状の状態で、封止樹脂32を凹部18および開口部48に充填されて固化される。このことにより、発光素子20の側面および上面と、発光素子20と金属細線16との接続部が、封止樹脂32により被覆される。
次に、第1溝54および第2溝56が形成された箇所で、基板40を各ユニット46に分離する。
本工程では、前工程にて分離された各ユニットの金属基板12に対して、折り曲げ加工を行う。図13(A)は折り曲げ加工を施す前の金属基板12の断面図であり、図13(B)は折り曲げ加工を行った後の金属基板12の断面図である。
本形態では、図14を参照して、金属基板を曲折させて、この曲折が導電パターンに示す影響を確認した実験結果を説明する。図14(A)は曲折された金属基板を側方から撮影した写真であり、図14(B)、図14(C)、図14(D)および図14(E)は金属基板が加熱される温度を変化させて金属基板を曲折させた後に、曲折部の導電パターンを撮影したSEM(Scanning Electron Microscope)画像である。
11A、11B、11C モジュール部
12 金属基板
12A 第1側面
12B 第2側面
12C 第3側面
12D 第4側面
13 曲折部
14、14A、14B 導電パターン
15 半導体装置
16 金属細線
17 反射枠
18 凹部
19 実装基板
20 発光素子
21 導電路
22 酸化膜
24 絶縁層
26 接合材
28 底面
30 側面
32 封止樹脂
34 被覆層
36 第1傾斜部
38 第2傾斜部
40 基板
42 絶縁層
44 導電箔
46 ユニット
48 開口部
54 第1溝
56 第2溝
58 溝
Claims (9)
- 一方の主面が絶縁層により被覆された金属基板と、
前記絶縁層の上面に形成された第1の導電パターンおよび第2の導電パターンと、
前記第1の導電パターンと一方の電極が接続され、前記第2の導電パターンの第1の接続領域と他方の電極が電気的に接続された第1の発光素子と、
前記第2の導電パターンの第2の接続領域と一方の電極が接続された第2の発光素子と、を備え、
前記第1の接続領域と前記第2の接続領域との間に位置し、前記金属基板の他方の主面から前記第2の導電パターンが跨って成る様に溝が設けられ、前記溝が設けられた曲折部にて、前記発光素子が実装される側とは反対側に前記金属基板が曲折され、
前記曲折部では、前記溝が閉じるように前記金属基板が曲折されることを特徴とする発光モジュール。 - 前記曲折部では、V字型の断面形状を有する前記溝が閉じるように前記金属基板が曲折されることを特徴とする請求項1に記載の発光モジュール。
- 前記金属基板は、長手方向に対向する第1側辺および第2側辺と、短手方向に対向する第3側辺および第4側辺とを有し、
前記溝は、前記第1側辺から第2側辺まで連続して形成されることを特徴とする請求項1または請求項2に記載の発光モジュール。 - 前記発光素子は、前記金属基板の長手方向に沿って複数個が設けられ、
前記金属基板が曲折される箇所を跨って設けられた導電パターンを介して、前記発光素子同士が電気的に接続されることを特徴とする請求項1から請求項3の何れかに記載の発光モジュール。 - 前記絶縁層を除去した開口部が設けられ、
前記発光素子は、前記開口部に露出する前記金属基板の主面に固着されることを特徴とする請求項1から請求項4の何れかに記載の発光モジュール。 - 前記開口部から露出する前記金属基板を凹状にすることにより凹部が設けられ、
前記発光素子は、前記凹部に収納されることを特徴とする請求項5に記載の発光モジュール。 - 前記凹部は、底面と、前記底面と前記金属基板の主面とを連続させる側面とを具備し、
前記側面は、前記金属基板の主面に接近するほど幅が広くなる傾斜面であることを特徴とする請求項6に記載の発光モジュール。 - 一方の主面の絶縁層の上面に設けられた導電パターンと、前記導電パターンと電気的に接続され、前記一方の主面に設けられた発光素子と、他方の主面に対向する2つの側辺に渡り設けられた溝と、を有する金属基板を用意し、
前記溝が設けられた箇所にて、前記溝が閉じるように、前記発光素子が実装される側とは反対側に前記金属基板を曲折させる工程と、を具備し、
前記曲折させる工程は、前記金属基板、前記絶縁層および前記導電パターンを加熱した状態で行うことを特徴とする発光モジュールの製造方法。 - 一方の主面の絶縁層の上面に設けられて複数のユニットを構成する導電パターンと、前記導電パターンと電気的に接続されて前記一方の主面に設けられた発光素子と、他方の主面の前記ユニット同士の境界に設けられた分離溝と、曲折される箇所に対応する前記他方の主面に設けられた溝と、を有する金属基板を用意し、
前記分離溝が設けられた箇所にて前記金属基板を前記各ユニットに分離する工程と、
前記各ユニットの前記金属基板を、前記溝が設けられた箇所にて、前記溝が閉じるように、前記発光素子が実装される側とは反対側に曲折させる工程と、を具備し、
前記曲折させる工程は、前記金属基板、前記絶縁層および前記導電パターンを加熱した状態で行うことを特徴とする発光モジュールの製造方法。
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JP2007247875A JP5279225B2 (ja) | 2007-09-25 | 2007-09-25 | 発光モジュールおよびその製造方法 |
TW097133865A TW200915629A (en) | 2007-09-25 | 2008-09-04 | Light emitting module and method of manufacture thereof |
CN2010105172824A CN102097421A (zh) | 2007-09-25 | 2008-09-24 | 发光模块 |
CN200810161260.1A CN101471335B (zh) | 2007-09-25 | 2008-09-24 | 发光模块的制造方法 |
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