JP2017191835A - 電子回路モジュール及びその製造方法 - Google Patents
電子回路モジュール及びその製造方法 Download PDFInfo
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- JP2017191835A JP2017191835A JP2016079765A JP2016079765A JP2017191835A JP 2017191835 A JP2017191835 A JP 2017191835A JP 2016079765 A JP2016079765 A JP 2016079765A JP 2016079765 A JP2016079765 A JP 2016079765A JP 2017191835 A JP2017191835 A JP 2017191835A
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- 239000002253 acid Substances 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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Abstract
Description
図1は、本発明の第1の実施形態による電子回路モジュール11の外観を示す略斜視図である。また、図2〜図4はそれぞれ電子回路モジュール11の上面図、底面図及び側面図であり、図5は図2に示すA−A線に沿った断面図である。
図13は、本発明の第2の実施形態による電子回路モジュール12の外観を示す略斜視図である。また、図14は電子回路モジュール12の断面図である。
図18は、本発明の第3の実施形態による電子回路モジュール13の外観を示す略斜視図である。また、図19は電子回路モジュール13の断面図である。
図20は、本発明の第4の実施形態による電子回路モジュール14の外観を示す略斜視図である。また、図21は電子回路モジュール14の断面図である。
図22は、本発明の第5の実施形態による電子回路モジュール15の外観を示す略斜視図である。また、図23は電子回路モジュール15の断面図である。
20 基板
20A 集合基板
21 基板の表面
22 基板の裏面
23 ランドパターン
24 電源パターン
25,26 外部端子
27 配線パターン
31 半導体チップ
32,32a,32b 電子部品
40 モールド樹脂
41 貫通孔
50,50a 金属シールド
51 金属シールドの下面
52 金属シールドの上面
53 開口部
54 マスク
55 金属導体
60,61 貫通導体
Claims (18)
- 電源パターンを有する基板と、
前記基板の表面に搭載された電子部品と、
前記電子部品を埋め込むよう、前記基板の前記表面を覆うモールド樹脂と、
前記モールド樹脂を覆う金属シールドと、
前記モールド樹脂を貫通して設けられ、前記金属シールドと前記電源パターンとを接続する貫通導体と、を備えることを特徴とする電子回路モジュール。 - 前記貫通導体は、平面視で前記電子部品を囲むよう、複数個設けられていることを特徴とする請求項1に記載の電子回路モジュール。
- 前記貫通導体は、前記モールド樹脂の側面に露出していることを特徴とする請求項1又は2に記載の電子回路モジュール。
- 前記金属シールドは、前記モールド樹脂の上面の全面を覆っていることを特徴とする請求項1乃至3のいずれか一項に記載の電子回路モジュール。
- 前記金属シールドには、前記モールド樹脂の上面を露出させる開口部が設けられていることを特徴とする請求項1乃至3のいずれか一項に記載の電子回路モジュール。
- 前記金属シールドは、前記電子部品を覆う位置に選択的に設けられていることを特徴とする請求項2に記載の電子回路モジュール。
- 前記モールド樹脂を覆って設けられ、前記金属シールドとは絶縁分離された金属導体と、
前記モールド樹脂を貫通して設けられ、前記金属導体に接続された別の貫通導体と、をさらに備えることを特徴とする請求項1乃至3のいずれか一項に記載の電子回路モジュール。 - 前記電源パターンは前記基板の前記表面に設けられており、前記貫通導体の底部は前記電源パターンの上面と接していることを特徴とする請求項1乃至7のいずれか一項に記載の電子回路モジュール。
- 前記金属シールドは、前記モールド樹脂側の表面が粗面化されていることを特徴とする請求項1乃至8のいずれか一項に記載の電子回路モジュール。
- 前記基板に埋め込まれた半導体チップをさらに備えることを特徴とする請求項1乃至9のいずれか一項に記載の電子回路モジュール。
- 電源パターンを有する集合基板の表面に電子部品を搭載する第1の工程と、
前記電子部品を埋め込むよう、前記集合基板の前記表面をモールド樹脂で覆うとともに、前記モールド樹脂の上面を金属シールドで覆う第2の工程と、
前記モールド樹脂に貫通孔を形成することにより前記電源パターンを露出させる第3の工程と、
前記貫通孔の内部に貫通導体を形成することにより、前記金属シールドと前記電源パターンとを接続する第4の工程と、
前記集合基板を切断することにより、電子回路モジュールを個片化する第5の工程と、を備えることを特徴とする電子回路モジュールの製造方法。 - 前記第2の工程は、金型の空洞部に樹脂と金属箔を導入することによって、前記モールド樹脂と前記金属シールドを同時に形成することを特徴とする請求項11に記載の電子回路モジュールの製造方法。
- 前記金属箔は、前記樹脂と接する側の表面が粗面化されていることを特徴とする請求項12に記載の電子回路モジュールの製造方法。
- 前記第2の工程を行った後、前記第4の工程を行う前に、前記金属シールドを一旦除去する工程をさらに備え、
前記第4の工程においては、メッキ加工を行うことにより、前記貫通孔の内部に前記貫通導体を形成すると同時に、前記モールド樹脂の前記上面に再び金属シールドを形成することを特徴とする請求項13に記載の電子回路モジュールの製造方法。 - 前記第4の工程においては、前記モールド樹脂の前記上面の一部に前記金属シールドが形成されないよう、選択的にメッキ加工を行うことを特徴とする請求項14に記載の電子回路モジュールの製造方法。
- 前記金属シールドの一部を除去することにより、前記モールド樹脂の前記上面の一部を露出させる工程をさらに備えることを特徴とする請求項11乃至13のいずれか一項に記載の電子回路モジュールの製造方法。
- 前記電源パターンは前記集合基板の前記表面に形成されており、前記第3の工程においては前記電源パターンの上面を露出させることを特徴とする請求項11乃至16のいずれか一項に記載の電子回路モジュールの製造方法。
- 前記第5の工程においては、前記貫通孔を分断する位置で前記集合基板を切断することを特徴とする請求項11乃至17のいずれか一項に記載の電子回路モジュールの製造方法。
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