JPWO2018110383A1 - 電子モジュールおよび電子モジュールの製造方法 - Google Patents
電子モジュールおよび電子モジュールの製造方法 Download PDFInfo
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- JPWO2018110383A1 JPWO2018110383A1 JP2018556608A JP2018556608A JPWO2018110383A1 JP WO2018110383 A1 JPWO2018110383 A1 JP WO2018110383A1 JP 2018556608 A JP2018556608 A JP 2018556608A JP 2018556608 A JP2018556608 A JP 2018556608A JP WO2018110383 A1 JPWO2018110383 A1 JP WO2018110383A1
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Abstract
Description
図1に、第1実施形態にかかる電子モジュール100を示す。ただし、図1は、電子モジュール100の断面図である。
まず、図2(A)に示すように、予め、第1主面1Aに回路配線パターン2が形成され、第2主面1Bに回路配線パターン3が形成され、両主面間を貫通して回路配線パターン2、3の所定の個所どうしを接続するビア導体(図示せず)が形成された基板1を用意する。なお、基板1が、LTCCなどからなるセラミックス基板である場合は、基板1を作製する際に、たとえば次に説明する方法で、同時に基板1に貫通孔4を形成しておく。
まず、図5(A)に示すように、予め、第1主面1Aに回路配線パターン2が形成され、第2主面1Bに回路配線パターン3が形成され、両主面間を貫通して回路配線パターン2、3の所定の個所どうしを接続するビア導体(図示せず)が形成された基板1を用意する。なお、基板1には、この時点においては、貫通孔4は形成されていない。
図8に、第2実施形態にかかる電子モジュール200を示す。ただし、図8は、電子モジュール200の断面図である。
図9に、第3実施形態にかかる電子モジュール300を示す。ただし、図9は、電子モジュール300の断面図である。
1A・・・第1主面
1B・・・第2主面
2・・・回路配線パターン(第1主面1Aに形成されたもの)
3・・・回路配線パターン(第2主面1Bに形成されたもの)
4・・・貫通孔(基板1に形成されたもの)
5、6・・・電子部品(第1電子部品)
7・・・はんだ
8、9・・・電子部品(第2電子部品)
10、30・・・電子部品(第3電子部品)
11・・・中継基板
12・・・回路配線パターン(11に形成されたもの)
13・・・間隙
14A・・・第1封止樹脂
14B・・・第2封止樹脂
15・・・接続端子
16・・・シールド膜
24・・・貫通孔(第1封止樹脂14Aに形成されたもの)
31・・・金属端子
51・・・成形用治具
100、200、300・・・電子モジュール
Claims (9)
- 第1主面および第2主面を有する基板と、
前記第1主面に実装された、少なくとも1個の第1電子部品と、
前記第2主面に実装された、少なくとも1個の第2電子部品と、
前記第1主面に、前記第1電子部品を覆って形成された第1封止樹脂と、
前記第2主面に、前記第2電子部品を覆って形成された第2封止樹脂と、を備えた電子モジュールであって、
前記基板と前記第1封止樹脂を貫通して、少なくとも1個の貫通孔が形成され、
前記貫通孔の内部に、第3電子部品が実装され、
前記貫通孔の内壁と前記第3電子部品との間に、前記第2封止樹脂が充填され、かつ、前記第2封止樹脂は前記第1封止樹脂の表面から露出するように形成され、
前記基板の法線方向に透視した場合に、前記第2封止樹脂が前記第3電子部品を囲い、
前記第1封止樹脂と前記第2封止樹脂とが、異なる種類の樹脂によって構成された電子モジュール。 - 部分的に露出した前記第2封止樹脂の表面を除く、前記第1封止樹脂の表面に、印字が施された、請求項1に記載された電子モジュール。
- 前記第1封止樹脂を構成する樹脂と前記第2封止樹脂を構成する樹脂は、線膨張係数が異なる請求項1または2に記載された電子モジュール。
- 前記第1封止樹脂を構成する樹脂と前記第2封止樹脂を構成する樹脂は、ヤング率が異なる、請求項1ないし3のいずれか1項に記載された電子モジュール。
- 前記貫通孔が形成されていない部分において、前記第1樹脂の厚み寸法が、前記第2樹脂の厚み寸法よりも大きい、請求項1ないし4のいずれか1項に記載された電子モジュール。
- 第1主面および第2主面を有し、前記第1主面と前記第2主面との間を貫通して少なくとも1個の貫通孔が形成された基板を用意する工程と、
第2電子部品を前記基板の前記第2主面に実装するとともに、第3電子部品を前記基板の前記第1主面から部分的に突出させて前記基板の前記貫通孔の内部に実装する工程と、
前記基板の前記第2主面と、前記貫通孔と前記第3電子部品との間に形成された空隙の内部と、前記基板の前記第1主面から部分的に突出した前記第3電子部品の周囲とに、前記第2電子部品および前記第3電子部品を覆うように、第2樹脂を形成する工程と、
前記基板の前記第1主面に前記第1電子部品を実装する工程と、
前記基板の前記第1主面に、前記第1電子部品を覆い、かつ、前記基板の前記第1主面において前記第3電子部品の周囲に形成された前記第2樹脂を囲むように、第1樹脂を形成する工程と、を順に備え、
前記第1封止樹脂と前記第2封止樹脂が、異なる種類の樹脂によって構成され、
前記第1封止樹脂の表面から、前記第2封止樹脂が部分的に露出した電子モジュールの製造方法。 - 第1主面および第2主面を有する基板を用意する工程と、
前記基板の前記第1主面に前記第1電子部品を実装する工程と、
前記基板の前記第1主面に、前記第1電子部品を覆うように、第1樹脂を形成する工程と、
前記基板および前記第1樹脂を貫通した、少なくとも1個の貫通孔を形成する工程と、
前記基板の第2主面に前記第2電子部品を実装し、前記基板の前記貫通孔の内部に前記第3電子部品を実装する工程と、
前記基板の前記第2主面と、前記貫通孔の内部とに、前記第2電子部品および前記第3電子部品を覆うように、第2樹脂を形成する工程と、を順に備え、
前記第1封止樹脂と前記第2封止樹脂が、異なる種類の樹脂によって構成され、
前記第1封止樹脂の表面から、前記第2封止樹脂が部分的に露出した電子モジュールの製造方法。 - 前記第1封止樹脂の表面の、前記第2封止樹脂が露出した部分以外の部分に印字を形成する工程をさらに備えた、請求項6または7に記載された電子モジュールの製造方法。
- 前記印字を形成する工程が、レーザの照射によりおこなわれる、請求項8に記載された電子モジュールの製造方法。
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