JP2023541621A - パワーモジュール及びその製造方法、コンバータ、並びに電子機器 - Google Patents
パワーモジュール及びその製造方法、コンバータ、並びに電子機器 Download PDFInfo
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- JP2023541621A JP2023541621A JP2023516656A JP2023516656A JP2023541621A JP 2023541621 A JP2023541621 A JP 2023541621A JP 2023516656 A JP2023516656 A JP 2023516656A JP 2023516656 A JP2023516656 A JP 2023516656A JP 2023541621 A JP2023541621 A JP 2023541621A
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Abstract
Description
第1のパワーボードを用意し、該第1のパワーボードは、基板と、該基板の実装面上に配置されたパワーチップとを含み、
ドライブボードを用意し、該ドライブボードを実装面とは反対側のパワーチップの側に配置し、且つ該ドライブボードをパワーチップに電気的に接続することで、パッケージング対象の構造体を形成し、
パッケージボディを用いてパッケージング対象の構造体をパッケージングすることで、パワーモジュールを形成する、ことを含む。
フィッティングが容易となる。
Claims (20)
- パワーアセンブリとドライブボードとを有するパワーモジュールであって、前記パワーアセンブリは、基板、パワーチップ、及びパッケージボディを有し、前記パワーチップが前記基板の実装面上に配置され、前記パッケージボディが前記基板上の前記パワーチップをパッケージングし、前記ドライブボードが、前記実装面とは反対側の前記パワーチップの側に位置して前記パッケージボディ内に配置され、前記ドライブボードが前記パワーチップに電気的に接続されている、パワーモジュール。
- 前記実装面に対して垂直な方向において、前記ドライブボードと前記パワーチップとの間の距離が、前記ドライブボードと前記実装面とは反対側の前記パッケージボディの表面との間の距離よりも小さい、請求項1に記載のパワーモジュール。
- 前記パワーアセンブリは更にピンを有し、該ピンは前記ドライブボードと前記パッケージボディの一部とを貫通し、前記ピンの一端が前記実装面上に配置されて前記パワーチップに電気的に接続され、前記ピンの他端が前記パッケージボディから露出される、請求項1又は2に記載のパワーモジュール。
- 前記ドライブボードは前記ピンを介して前記パワーチップに電気的に接続されている、請求項3に記載のパワーモジュール。
- 当該パワーモジュールは更に導電体を有し、該導電体は前記パワーチップと前記ドライブボードとの間に位置し、前記パワーチップは前記導電体を介して前記ドライブボードに接続されている、請求項3に記載のパワーモジュール。
- 前記導電体は銅棒であり、該銅棒の両端が、それぞれ、前記パワーチップ及び前記ドライブボードに電気的に接続されている、請求項5に記載のパワーモジュール。
- 前記導電体はリードフレームであり、該リードフレームは、互いに接続された第1端子及び第2端子を有し、前記第1端子が前記パワーチップに電気的に接続され、前記第2端子が前記ドライブボードに電気的に接続されている、請求項5に記載のパワーモジュール。
- 前記リードフレームは更に、前記第1端子に電気的に接続された第3端子を有し、該第3端子は前記ピンに電気的に接続されている、請求項7に記載のパワーモジュール。
- 当該パワーモジュールは更にパッケージハウジングを有し、前記パワーアセンブリ及び前記ドライブボードは前記パッケージハウジング内に収容され、前記パワーチップとは反対側の前記ピンの端部が前記パッケージハウジングの外に延び、前記パッケージボディは、ハウジングパッケージングプロセスを用いて前記パッケージハウジング内の隙間に注入されている、請求項3乃至8のいずれか一項に記載のパワーモジュール。
- 前記ドライブボード及び前記パワーアセンブリは、パッケージングされた構造体を構成し、前記パワーチップとは反対側の前記基板の表面が裏面であり、該裏面は前記パッケージボディから露出され、当該パワーモジュールは更にヒートシンクを有し、該ヒートシンクが、前記裏面と接触して、前記パッケージングされた構造体に固定されている、請求項1乃至8のいずれか一項に記載のパワーモジュール。
- 前記ドライブボードは、中央領域と該中央領域を取り囲むエッジ領域とを有し、前記中央領域は、前記パワーアセンブリに対向して配置され、前記パッケージングされた構造体は取り付け穴を有し、該取り付け穴は、前記エッジ領域に位置して、前記ドライブボードから前記パワーチップへの方向に前記ドライブボードと前記パッケージボディとを貫通し、前記ヒートシンクは、前記取り付け穴を介して前記パッケージングされた構造体に接続されている、請求項10に記載のパワーモジュール。
- 前記パワーチップとは反対側の前記エッジ領域の表面を通じてネジが固定されるように、前記パワーチップとは反対側の前記エッジ領域の前記表面が前記パッケージボディから露出されている、請求項11に記載のパワーモジュール。
- 2つのパワーアセンブリが存在し、前記2つのパワーアセンブリの実装面が、互いに対向して配置されて互いに電気的に接続され、前記2つのパワーアセンブリのパッケージボディが接続され、前記ドライブボードは、前記2つのパワーアセンブリの間に配置されて少なくとも一方のパワーアセンブリに電気的に接続されている、請求項1に記載のパワーモジュール。
- 回路ボードと、請求項1乃至13のいずれか一項に記載のパワーモジュールとを有し、前記パワーモジュールが前記回路ボードに電気的に接続されている、コンバータ。
- 請求項14に記載のコンバータを有する電子機器であって、前記コンバータが当該電子機器の電気信号を変換するように構成されている、電子機器。
- 第1のパワーボードを用意し、該第1のパワーボードは、基板と、該基板の実装面上に配置されたパワーチップとを有し、
ドライブボードを用意し、該ドライブボードを前記実装面とは反対側の前記パワーチップの側に配置し、且つ該ドライブボードを前記パワーチップに電気的に接続することで、パッケージング対象の構造体を形成し、
パッケージボディを用いて前記パッケージング対象の構造体をパッケージングすることで、パワーモジュールを形成する、
ことを有する、パワーモジュールの製造方法。 - 当該製造方法は更に、前記ドライブボードを前記実装面とは反対側の前記パワーチップの側に前記配置することの前に、前記実装面とは反対側の前記パワーチップの表面上に、前記パワーチップに電気的に接続された導電体を形成することを有し、前記ドライブボードが前記実装面とは反対側の前記パワーチップの側に配置されるときに、前記ドライブボードが前記導電体に電気的に接続される、請求項16に記載のパワーモジュールの製造方法。
- 前記導電体は銅棒であり、又は前記導電体はリードフレームである、請求項17に記載のパワーモジュールの製造方法。
- 当該製造方法は更に、前記パワーチップが前記基板の前記実装面上に配置されるときに、ピンを前記実装面に固定することを有し、前記ドライブボードが前記実装面とは反対側の前記パワーチップの側に配置されるときに、前記ピンが前記ドライブボードを貫通する、請求項16乃至18のいずれか一項に記載のパワーモジュールの製造方法。
- 当該製造方法は更に、前記ドライブボードが前記第1のパワーボードに電気的に接続された後に、第2のパワーボードを用意し、該第2のパワーボードを前記第1のパワーボードとは反対側の前記ドライブボードの側に配置し、且つ該第2のパワーボードを前記第1のパワーボードに電気的に接続することで、パッケージング対象の構造体を形成することを有する、請求項16乃至18のいずれか一項に記載のパワーモジュールの製造方法。
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