JP5563917B2 - 回路装置及びその製造方法 - Google Patents
回路装置及びその製造方法 Download PDFInfo
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- JP5563917B2 JP5563917B2 JP2010164996A JP2010164996A JP5563917B2 JP 5563917 B2 JP5563917 B2 JP 5563917B2 JP 2010164996 A JP2010164996 A JP 2010164996A JP 2010164996 A JP2010164996 A JP 2010164996A JP 5563917 B2 JP5563917 B2 JP 5563917B2
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- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
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- H05K1/03—Use of materials for the substrate
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- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
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Description
2 樹脂封止体
2A 第1の樹脂封止体
2B 第2の樹脂封止体
3 リード
4 回路基板
6 導電パターン
13 樹脂シート
21 樹脂封止金型
Claims (8)
- 回路基板と、前記回路基板の一主面側に設けられた導電パターンと、前記導電パターン上に固着された回路素子と、前記回路基板を被覆する樹脂封止体とを有する回路装置において、
前記回路基板は、前記一主面と、前記一主面と対向する他の主面と、前記一主面と前記他の主面との間に配置される側面とを有し、
前記樹脂封止体は、少なくとも前記回路基板の一主面側及び側面の一部を被覆する第1の樹脂封止体と、少なくとも前記回路基板の他の主面側及び側面の一部分を被覆する第2の樹脂封止体とを有し、
前記第1の樹脂封止体と前記第2の樹脂封止体との重合領域は、前記回路基板の側面の中央よりも上方側の横まで配置され、前記重合領域の頂部は、前記回路基板の上面側よりも低い位置となり、
前記第2の樹脂封止体に含まれるフィラーの粒径は、前記第1の樹脂封止体に含まれるフィラーの粒径よりも大きく、結晶形状または破砕形状であることを特徴とする回路装置。 - 前記第2の樹脂封止体に含まれるフィラーの材質は、前記第1の樹脂封止体に含まれるフィラーの材質とは異なり、前記第2の樹脂封止体に含まれるフィラーの熱伝導率は、前記第1の樹脂封止体に含まれるフィラーの熱伝導率よりも大きいことを特徴とする請求項1に記載の回路装置。
- 前記第2の樹脂封止体は、前記回路基板の他の主面の下面に配置され、粉末樹脂を加圧した樹脂シートを溶融した後、硬化した樹脂から成ることを特徴とする請求項1または請求項2に記載の回路装置。
- 前記第1の樹脂封止体に含まれるフィラーは、球状のシリカであり、前記第2の樹脂封止体に含まれるフィラーは、アルミナであることを特徴とする請求項1から請求項3のいずれか1項に記載の回路装置。
- 樹脂封止金型にその一主面側に回路素子が配置された回路基板を配置し、前記樹脂封止金型のキャビティ内に第1の封止樹脂を注入し、樹脂封止体を形成する回路装置の製造方法において、
熱硬化性樹脂を含む粉末状の樹脂材料を加圧して形成された樹脂シートを準備し、前記樹脂封止金型のキャビティ内に、前記回路基板が前記樹脂シート上に積層するように配置する工程と、
前記樹脂シートが溶融し結晶形状または破砕形状のフィラーが含まれる第2の封止樹脂が前記回路基板の一主面と対向する他の主面側及び前記回路基板の一主面と他の主面との間に配置される側面の中央よりも上方側まで被覆し、前記キャビティ内に注入した前記第1の封止樹脂により前記回路基板の一主面側及び前記側面の一部を被覆しながら、前記側面の中央よりも上方側の横にて前記第1の封止樹脂と前記第2の封止樹脂が重合するように前記樹脂封止体を形成することを特徴とする回路装置の製造方法。 - 前記第1の封止樹脂に含まれるフィラーは、球状のシリカであり、前記第2の封止樹脂に含まれるフィラーは、アルミナであることを特徴とする請求項5に記載の回路装置の製造方法。
- 前記第2の封止樹脂に含まれるフィラーの粒径は、前記第1の封止樹脂に含まれるフィラーの粒径よりも大きく、前記回路基板が、前記第2の封止樹脂内へと沈み込むことで、前記第2の封止樹脂は前記回路基板の側面の中央よりも上方側まで被覆することを特徴とする請求項6に記載の回路装置の製造方法。
- 少なくとも前記樹脂シートが溶融し始めた後に、前記キャビティ内に第1の封止樹脂を注入し、前記第2の封止樹脂を前記第1の封止樹脂よりも先に加熱硬化させることを特徴とする請求項5から請求項7のいずれか1項に記載の回路装置の製造方法。
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CN201110204479.7A CN102348332B (zh) | 2010-07-22 | 2011-07-21 | 电路装置及其制造方法 |
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US9059187B2 (en) * | 2010-09-30 | 2015-06-16 | Ibiden Co., Ltd. | Electronic component having encapsulated wiring board and method for manufacturing the same |
KR20160042984A (ko) * | 2013-10-10 | 2016-04-20 | 인텔 코포레이션 | 소형 폼팩터 디바이스에서의 구조적 강도 증가, 사이즈 감소, 안전성 개선, 열성능 향상 및 충전 가속화를 위한 재료의 사용 |
WO2015173906A1 (ja) | 2014-05-14 | 2015-11-19 | 三菱電機株式会社 | 半導体装置の製造方法 |
EP2966934B1 (de) * | 2014-07-08 | 2016-09-14 | Eberspächer catem GmbH & Co. KG | Steuervorrichtung für eine elektrische Heizvorrichtung und Verfahren zu deren Herstellung |
EP3176543B1 (en) * | 2014-07-30 | 2020-11-18 | Hitachi Automotive Systems, Ltd. | Circuit board mounting structure and sensor using same |
JP6283379B2 (ja) * | 2016-01-29 | 2018-02-21 | 本田技研工業株式会社 | コンデンサの配置構造 |
WO2017150232A1 (ja) * | 2016-03-03 | 2017-09-08 | 株式会社村田製作所 | プローブカード用積層配線基板およびこれを備えるプローブカード |
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US12127362B2 (en) * | 2016-06-20 | 2024-10-22 | Black & Decker Inc. | Encapsulated printed circuit board and a method of encapsulating a printed circuit board |
US10439586B2 (en) | 2017-07-19 | 2019-10-08 | Murata Manufacturing Co., Ltd. | Electronic module having a filler in a sealing resin |
US11387400B2 (en) | 2017-07-19 | 2022-07-12 | Murata Manufacturing Co., Ltd. | Electronic module with sealing resin |
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