JP2012212818A - 電子部品内蔵基板及びその製造方法 - Google Patents
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Abstract
【解決手段】基板20の上に、電子部品1等を載置し、その上に絶縁層31を設けた後、電子部品1の端子2上の絶縁層31にビアホールVを穿設する。電子部品1の端子2は、例えば、第1金属層201、第2金属層202、及び第3金属層203の積層構造を有している。ビアホールVの形成時には、電気抵抗が比較的高い第3金属層203の一部を除去し、その部位にビア導体を含む配線層を接続する。また、第3金属層203は、絶縁層31との密着性に優れるものを用いることが好ましい。
【選択図】図8
Description
α1≦α3 … (1)
α2≦α3 … (2)
ここで、α1は、電子部品1の線膨張係数(ppm/K)を示し、α2は、ダミー材Dの線膨張係数(ppm/K)を示し、α3は、各配線層又は各絶縁層の線熱膨張係数(ppm/K)を示す。
Claims (9)
- 基板と、
端子を有し且つ前記基板上に載置された電子部品と、
前記電子部品を覆うように形成された絶縁層と、
前記電子部品の前記端子と電気的に接続された配線層と、
を備える電子部品内蔵基板であって、
前記電子部品の前記端子は、複数の金属層を有しており、且つ、前記複数の金属層は最表層及び該最表層よりも下層側に位置する接続層の少なくとも2層を有し、前記最表層は、前記接続層又は前記配線層よりも電気抵抗が高く、前記絶縁層と接する部位においては前記最表層が形成されており、前記絶縁層と前記最表層とが直接接着されており、前記配線層と接する部位においては前記最表層が形成されておらず、前記配線層と前記接続層とが前記最表層を介さずに電気的に接続していることを特徴とする、
電子部品内蔵基板。 - 前記最表層は、Pd又はAuを含むものである、
請求項1記載の電子部品内蔵基板。 - 前記接続層は、Al或いはCu又はこれらの合金を含む、
請求項1又は2記載の電子部品内蔵基板。 - 前記最表層及び前記接続層の間に、エッチストッパ層を有し、
前記配線層と接する部位においては、前記配線層と前記エッチストッパ層とが接続され、前記配線層と前記接続層とが前記最表層を介さずに電気的に接続している、
請求項1〜3のいずれか一項記載の電子部品内蔵基板。 - 端子を有する電子部品を基板上に載置する載置工程と、
前記電子部品を覆うように絶縁層を形成する絶縁層形成工程と、
前記電子部品の前記端子の一部が露出するように前記絶縁層に開口を形成する開口形成工程と、
前記電子部品の前記端子と電気的に接続するように少なくとも前記開口の内部に配線層を形成する配線層形成工程と、
を有しており、
前記端子は、複数の金属層を有しており、且つ、前記複数の金属層は最表層及び該最表層よりも下層側に位置する接続層の少なくとも2層を有し、前記最表層は、前記接続層又は前記配線層よりも電気抵抗が高く、
前記開口形成工程においては、前記端子の前記最表層の少なくとも一部を除去し、前記配線層と前記接続層とを前記最表層を介さずに電気的に接続させることを特徴とする、
電子部品内蔵基板の製造方法。 - 前記最表層は、Pd又はAuを含むものである、
請求項5記載の電子部品内蔵基板の製造方法。 - 前記接続層は、Al或いはCu又はこれらの合金を含む、
請求項5又は6記載の電子部品内蔵基板の製造方法。 - 前記最表層及び前記接続層の間に、エッチストッパ層を有し、
前記開口形成工程においては、前記配線層と前記エッチストッパ層とを接続し、前記配線層と前記接続層とを前記最表層を介さずに電気的に接続させる、
請求項5〜7のいずれか一項記載の電子部品内蔵基板の製造方法。 - 前記開口形成工程においては、ウェットブラスト処理により前記開口を形成する、
請求項5〜8のいずれか一項記載の電子部品内蔵基板の製造方法。
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JP2011078470A JP5540276B2 (ja) | 2011-03-31 | 2011-03-31 | 電子部品内蔵基板及びその製造方法 |
US13/428,764 US8779299B2 (en) | 2011-03-31 | 2012-03-23 | Electronic component-embeded board and method for manufacturing the same |
CN201210093530.6A CN102738116B (zh) | 2011-03-31 | 2012-03-31 | 电子部件内藏基板以及其制造方法 |
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KR101517860B1 (ko) * | 2013-12-23 | 2015-05-15 | 전자부품연구원 | 인쇄회로기판 및 그 제조 방법 |
WO2015156141A1 (ja) * | 2014-04-10 | 2015-10-15 | 株式会社村田製作所 | 部品内蔵多層基板 |
WO2024171730A1 (ja) * | 2023-02-15 | 2024-08-22 | Tdk株式会社 | 複合電子部品及びその製造方法 |
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US9450547B2 (en) | 2013-12-12 | 2016-09-20 | Freescale Semiconductor, Inc. | Semiconductor package having an isolation wall to reduce electromagnetic coupling |
AT515101B1 (de) | 2013-12-12 | 2015-06-15 | Austria Tech & System Tech | Verfahren zum Einbetten einer Komponente in eine Leiterplatte |
AT515447B1 (de) | 2014-02-27 | 2019-10-15 | At & S Austria Tech & Systemtechnik Ag | Verfahren zum Kontaktieren eines in eine Leiterplatte eingebetteten Bauelements sowie Leiterplatte |
US11523520B2 (en) * | 2014-02-27 | 2022-12-06 | At&S Austria Technologie & Systemtechnik Aktiengesellschaft | Method for making contact with a component embedded in a printed circuit board |
US20150296622A1 (en) * | 2014-04-11 | 2015-10-15 | Apple Inc. | Flexible Printed Circuit With Semiconductor Strain Gauge |
US20150296607A1 (en) * | 2014-04-11 | 2015-10-15 | Apple Inc. | Electronic Device With Flexible Printed Circuit Strain Gauge Sensor |
US9418951B2 (en) * | 2014-05-15 | 2016-08-16 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor structure with composite barrier layer under redistribution layer and manufacturing method thereof |
US9986646B2 (en) * | 2014-11-21 | 2018-05-29 | Nxp Usa, Inc. | Packaged electronic devices with top terminations, and methods of manufacture thereof |
CN109892022A (zh) * | 2016-09-01 | 2019-06-14 | Agc株式会社 | 布线基板及其制造方法 |
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CN102738116A (zh) | 2012-10-17 |
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US8779299B2 (en) | 2014-07-15 |
US20120247819A1 (en) | 2012-10-04 |
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