JP5716637B2 - 半導体モジュール及び半導体モジュールの製造方法 - Google Patents
半導体モジュール及び半導体モジュールの製造方法 Download PDFInfo
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- 150000002739 metals Chemical class 0.000 description 1
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Description
<半導体モジュール>
図1は、第1実施形態に係る半導体モジュールを模式的に示す平面図である。図2は、図1のII−II線に沿った半導体モジュールの断面図である。図3は、図1のIII−III線に沿った半導体モジュールの断面図である。図1において蓋70は便宜上表示されていない。
図6〜図21を参照しながら、本実施形態に係る半導体モジュールの製造方法の一例として、図1〜3に示される半導体モジュール10の製造方法について説明する。半導体モジュール10は例えば以下のようにして製造される。
まず、図6〜図8に示されるように、回路基板30を準備する。回路基板30の凸部35は、例えば以下にようにして形成される。まず、絶縁基板33の主面とは反対側の面に設けられた金属層34上に金属膜を形成する。次に、フォトリソグラフィー法を用いて当該金属膜をエッチングすることによって凸部35を形成する。
次に、図9〜図13に示されるように、ベース20に絶縁支持体40を取り付ける。絶縁支持体40は、ベース20の溝22に端子80〜91が対向配置されるように取り付けられ得る。絶縁支持体40は、樹脂中に端子80〜91を圧入し、樹脂を成型することにより形成される。また、ベース20に絶縁支持体60を取り付けてもよい。ベース20の溝22は、フォトリソグラフィー法を用いてベースをエッチングすることによって形成され得る。
次に、図14〜図16に示されるように、回路基板30をベース20に嵌め合わせる。回路基板30の凸部35が、ベース20の溝22に嵌め合わされ得る。例えば、凸部35が溝22に嵌め合わされた状態で、回路基板30をベース20の溝22に沿ってベース20の端部120から中央部220に向かってスライドさせることによって、端子80〜91とベース20との間に、回路基板30の第1の端部130を挿入する。これにより、半導体素子32の電極パッド36a,36b,36cが端子80〜91と接触して電気的に接続され得る。
次に、図17〜図20に示されるように、ベース20に絶縁支持体50a,50bを取り付ける。絶縁支持体50a,50bは、樹脂中に端子92〜102を圧入し、樹脂を成型することにより形成される。これにより、回路基板30の端部230がベース20に固定され得る。また、半導体素子32の電極パッド36a,36b,36cが端子92〜102と接触して電気的に接続され得る。
次に、図21に示されるように、蓋70を絶縁支持体40,50a,50b,60に貼り付ける。蓋70によって、ベース20及び絶縁支持体40,50a,50b,60によって囲まれた空間が封止される。
図22は、第2実施形態に係る半導体モジュールを模式的に示す平面図である。図23は、図22のXXIII−XXIII線に沿った半導体モジュールの断面図である。図24は、図22のXXIV−XXIV線に沿った半導体モジュールの断面図である。図22において蓋70は便宜上表示されていない。
図29は、第3実施形態に係る半導体モジュールを模式的に示す平面図である。図30は、図29のXXX−XXX線に沿った半導体モジュールの断面図である。図31は、図29のXXXI−XXXI線に沿った半導体モジュールの断面図である。図29において蓋70は便宜上表示されていない。
図34は、第4実施形態に係る半導体モジュールを模式的に示す断面図である。図34に示される半導体モジュール10cは、回路基板をベースに嵌め合わせるための構造が異なること以外は半導体モジュール10と同じ構成を備える。半導体モジュール10cは、回路基板30b及びベース20bを備える。
図37は、第5実施形態に係る半導体モジュールを模式的に示す断面図である。図37に示される半導体モジュール10dは、回路基板をベースに嵌め合わせるための構造が異なること以外は半導体モジュール10と同じ構成を備える。半導体モジュール10dは、回路基板30c及びベース20cを備える。回路基板30cは、金属層34に形成された凹部35aを備える。ベース20cは、凹部35aに対応する凸部22aを備える。
図38は、第6実施形態に係る半導体モジュールを模式的に示す断面図である。図38に示される半導体モジュール10eは、回路基板をベースに嵌め合わせるための構造が異なること以外は半導体モジュール10と同じ構成を備える。半導体モジュール10eは、回路基板30d及びベース20dを備える。回路基板30dは、凸部35及び凹部35aを備えていない。ベース20dは、回路基板30d全体に対応する溝22を備える。
図39は、第7実施形態に係る半導体モジュールを模式的に示す断面図である。図39に示される半導体モジュール10fは、回路基板をベースに嵌め合わせるための構造が異なること以外は半導体モジュール10と同じ構成を備える。半導体モジュール10fは、回路基板30e及びベース20eを備える。回路基板30eでは、凸部35の延在方向に垂直な断面形状が三角形になっている。このため、ベース20eでは、溝22の延在方向に垂直な断面形状も三角形になっている。
図40は、第8実施形態に係る半導体モジュールを模式的に示す断面図である。図40に示される半導体モジュール10gは、回路基板をベースに嵌め合わせるための構造が異なること以外は半導体モジュール10と同じ構成を備える。半導体モジュール10gは、回路基板30f及びベース20fを備える。回路基板30fでは、凸部35の延在方向に垂直な断面形状が半円になっている。このため、ベース20fでは、溝22の延在方向に垂直な断面形状も半円になっている。
Claims (9)
- ベースと、
少なくとも1つの回路基板と、
を備える半導体モジュールであって、
前記少なくとも1つの回路基板が、支持基板と前記支持基板によって支持される半導体素子とを有し、
前記ベースが、前記少なくとも1つの回路基板を前記ベースに嵌め合わせるための溝を有し、
前記溝が、前記溝の延在方向に沿って深くなっている、
半導体モジュール。 - 前記少なくとも1つの回路基板が複数の回路基板を備え、
前記複数の回路基板のそれぞれが、前記支持基板と前記半導体素子とを有する、請求項1に記載の半導体モジュール。 - 前記半導体素子と電気的に接続される端子を支持すると共に、前記ベースに取り付けられる絶縁支持体を更に備える、請求項1又は2に記載の半導体モジュール。
- 前記少なくとも1つの回路基板を前記ベースに固定する固定部材を更に備える、請求項1〜3のいずれか一項に記載の半導体モジュール。
- 前記少なくとも1つの回路基板の主面の中心を通ると共に前記主面に垂直な軸線に対して、前記溝が非対称に形成されている、請求項1〜4のいずれか一項に記載の半導体モジュール。
- 前記半導体素子がワイドバンドギャップ半導体を含む、請求項1〜5のいずれか一項に記載の半導体モジュール。
- 前記ワイドバンドギャップ半導体がSiC又はGaNである、請求項6に記載の半導体モジュール。
- 溝を有するベースに、前記溝に対向配置された端子を支持する絶縁支持体を取り付ける工程と、
前記端子と前記ベースとの間に、支持基板と前記支持基板によって支持される半導体素子とを有する回路基板の第1の端部を挿入する工程と、
前記回路基板の第1の端部とは異なる第2の端部を固定部材によって前記ベースに固定して、前記端子を前記半導体素子と電気的に接続すると共に、前記回路基板を前記ベースの前記溝に嵌め合わせる工程と、
を含む、半導体モジュールの製造方法。 - 前記溝が、前記溝の延在方向に沿って前記端子に向かって深くなっている、請求項8に記載の半導体モジュールの製造方法。
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