JP2023168644A - 半導体モジュール - Google Patents
半導体モジュール Download PDFInfo
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- JP2023168644A JP2023168644A JP2023152332A JP2023152332A JP2023168644A JP 2023168644 A JP2023168644 A JP 2023168644A JP 2023152332 A JP2023152332 A JP 2023152332A JP 2023152332 A JP2023152332 A JP 2023152332A JP 2023168644 A JP2023168644 A JP 2023168644A
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- Prior art keywords
- conductive
- input terminal
- semiconductor
- resin
- semiconductor elements
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Abstract
Description
厚さ方向に互いに離間した主面および裏面を有する導電基板と、
前記主面に電気的に接合され且つスイッチング機能を有する少なくとも1つの半導体素
子と、
前記半導体素子によってスイッチングされる主回路電流の経路を構成する導通部材と、
前記導電基板に対して前記厚さ方向に直交する第1方向の一方側に配置された第1入力端子および第2入力端子と、
前記導電基板に対して前記第1方向の他方側に配置された少なくとも1つの出力端子と、を備え、
前記導電基板は、前記第1方向に互いに離間配置された第1導電部および第2導電部を含み、
前記少なくとも1つの半導体素子は、複数の第1半導体素子および複数の第2半導体素子を含み、前記複数の第1半導体素子は、前記第1導電部に電気的に接合され、かつ前記厚さ方向および前記第1方向の双方に直角である第2方向に互いに離間配置されており、前記複数の第2半導体素子は、前記第2導電部に電気的に接合され、かつ前記第2方向に互いに離間配置されており、
前記第1入力端子は、前記第1導電部に電気的に接続されており、
前記第2入力端子は、前記第1入力端子とは極性が逆であり、
前記出力端子は、前記第2導電部に電気的に接続されており、
前記導通部材は、前記複数の第1半導体素子と前記第2導電部とに接続された第1導通部材と、前記複数の第2半導体素子と前記第2入力端子とに接続された第2導通部材と、を含む、半導体モジュール。
付記2.
前記主回路電流の経路は、前記第1入力端子と前記出力端子との間の第1主回路電流の経路と、前記出力端子と前記第2入力端子との間の第2主回路電流の経路と、を含み、
前記第1主回路電流の方向と前記第2主回路電流の方向とは逆である、付記1に記載の半導体モジュール。
付記3.
前記複数の第1半導体素子および前記複数の第2半導体素子によってスイッチングされる前記主回路電流の経路が前記厚さ方向に見て前記第1方向に沿うように構成されている、付記1または2に記載の半導体モジュール。
付記4.
前記第1導通部材は、前記複数の第1半導体素子とそれぞれ対応する複数の導通部分を含む、付記1ないし3のいずれかに記載の半導体モジュール。
付記5.
前記第1半導体素子に対して前記第1方向一方側に位置し、かつ前記第2導通部材が接続された第3入力端子をさらに備え、
前記第1入力端子は、前記第2方向において、前記第2入力端子および前記第3入力端子の間に配置されている、付記1ないし4のいずれかに記載の半導体モジュール。
付記6.
前記第2導通部材は、前記第2入力端子に接続され、かつ前記第1方向に延びる第1配線部と、前記第3入力端子に接続され、かつ前記第1方向に延びる第2配線部と、前記第1配線部および前記第2配線部の双方に繋がり、前記第2方向に延びており、かつ前記複数の第2半導体素子それぞれに接続される第3配線部と、前記第3配線部に対して前記第1方向一方側に位置し、前記第1配線部、前記第2配線部および前記第3配線部のいずれにも繋がる第4配線部と、を含む、付記5に記載の半導体モジュール。
付記7.
前記第4配線部は、前記厚さ方向に見て前記複数の第1半導体素子と重なる、付記6に記載の半導体モジュール。
付記8.
前記第4配線部は、当該第4配線部の他の部位よりも前記厚さ方向に突き出た複数の凸状領域を有し、各凸状領域は、前記厚さ方向に見て、前記複数の第1半導体素子のうち対応する1つと重なる、付記7に記載の半導体モジュール。
付記9.
前記複数の第1半導体素子および前記複数の第2半導体素子は、それぞれ、前記厚さ方向に互いに離間配置されたソース電極およびドレイン電極を有しており、
前記第1導通部材は、各第1半導体素子の前記ソース電極に接続されており、
前記第1導電部は、各第1半導体素子の前記ドレイン電極に接続されており、
前記第3配線部は、各第2半導体素子の前記ソース電極に接続されており、
前記第2導電部は、各第2半導体素子の前記ドレイン電極に接続されている、付記6ないし8のいずれかに記載の半導体モジュール。
付記10.
前記複数の第1半導体素子と前記複数の第2半導体素子とは、前記第1方向に見て互いに重なる、付記9に記載の半導体モジュール。
付記11.
前記第1入力端子、前記第2入力端子および前記第3入力端子は、前記第2方向に見て互いに重なる、付記5ないし10のいずれかに記載の半導体モジュール。
付記12.
前記第1導通部材および前記第2導通部材は、金属製の板材により構成される、付記1ないし11のいずれかに記載の半導体モジュール。
付記13.
前記複数の第1半導体素子および前記複数の第2半導体素子のうちの1つに接続された制御端子をさらに備え、
前記制御端子は、前記主面上に配置され、かつ前記厚さ方向に沿って延びる、付記1に記載の半導体モジュール。
付記14.
前記第1入力端子および前記第2入力端子は、それぞれ、前記第1方向の一方側に向かって延び、かつ前記厚さ方向の一方側に向く入力側接合面を含み、
前記出力端子は、前記第1方向の他方側に向かって延び、かつ、前記厚さ方向の一方側に向く出力側接合面を含む、付記1ないし13のいずれかに記載の半導体モジュール。
付記15.
前記第1入力端子および前記第2入力端子は、それぞれ、前記厚さ方向に見て前記入力側接合面の周縁に位置し、かつ当該入力側接合面の法線と交差する方向を向く入力側側面と、当該入力側側面に形成された入力側加工痕と、を有し、
前記出力端子は、前記厚さ方向に見て前記出力側接合面の周縁に位置し、かつ当該出力側接合面の法線と交差する方向を向く出力側側面と、当該出力側側面に形成された出力側加工痕と、を有する、付記14に記載の半導体モジュール。
付記16.
前記第1および第2導電部の各々の少なくとも一部と、前記複数の第1半導体素子と、前記複数の第2半導体素子と、前記第1導通部材と、前記第2導通部材とを覆う封止樹脂をさらに備える、付記1ないし15のいずれかに記載の半導体モジュール。
付記17.
前記封止樹脂は、前記第1方向に互いに離間した第1樹脂側面および第2樹脂側面を有し、前記第2樹脂側面は、前記第1樹脂側面よりも前記第2導電部に近い位置にあり、前記第2樹脂側面は、前記第2方向に互いに離間した2つの端部を有し、少なくともそのうちの1つの端部に樹脂分離痕が形成されている、付記16に記載の半導体モジュール。
付記18.
前記少なくとも1つの出力端子は、第1出力端子と第2出力端子とを含み、
前記封止樹脂は、前記第1出力端子と前記第2出力端子との間において樹脂分離痕が形成された樹脂側面を有する、付記16に記載の半導体モジュール。
付記19.
厚さ方向互いに離間した主面および裏面を有する導電基板と、
前記主面に電気的に接合され、スイッチング機能を有する少なくとも1つの半導体素子と、
前記半導体素子によってスイッチングされる主回路電流の経路を構成し、前記主面から前記厚さ方向に離間する導通部材と、
前記導電基板に対し、前記厚さ方向に直交する第1方向の一方側に配置された第1入力端子および第2入力端子と、
前記導電基板に対して前記第1方向の他方側に配置された出力端子と、を備え、
前記導電基板は、前記厚さ方向に直交する第1方向において互いに離間した第1導電部および第2導電部を含み、
前記少なくとも1つの半導体素子は、前記第1導電部に電気的に接合された複数の第1半導体素子と、前記第2導電部に電気的に接合された複数の第2半導体素子と、を含み、
前記複数の第1半導体素子は、前記厚さ方向および前記第1方向の双方に直角である第2方向に沿って互いに離間配置されており、
前記複数の第2半導体素子は、前記第2方向に沿って互いに離間配置されており、
前記第1入力端子は、前記第1導電部に繋がった正極であり、
前記第2入力端子は負極であり、
前記出力端子は、前記第2導電部に繋がっており、
前記導通部材は、前記複数の第1半導体素子と前記第2導電部とに接続された第1導通部材と、前記複数の第2半導体素子と前記第2入力端子とに接続された第2導通部材と、を含む、半導体モジュール。
付記20.
前記複数の第1半導体素子および前記複数の第2半導体素子によってスイッチングされる前記主回路電流の経路が前記厚さ方向に見て前記第1方向に沿うように構成されており、
前記厚さ方向に見て、前記複数の第1半導体素子および前記複数の第2半導体素子は、前記第1方向に直交する軸に関して互いに対称に配置されている、付記19に記載の半導体モジュール。
付記21.
前記複数の第1半導体素子に対して前記第1方向一方側に位置し、かつ前記第2導通部材が接続された、負極である第3入力端子をさらに備え、
前記第2入力端子および前記第3入力端子は、前記第1入力端子を挟んで前記第2方向の一方側および他方側にそれぞれ配置されている、付記19または20に記載の半導体モジュール。
付記22.
前記第2導通部材は、前記第2入力端子に接続され、かつ前記第1方向に延びる第1配線部と、前記第3入力端子に接続され、かつ前記第1方向に延びる第2配線部と、前記第1配線部および前記第2配線部の双方に繋がり、前記第2方向に延びており、かつ前記複数の第2半導体素子それぞれに接続される第3配線部と、前記第3配線部に対して前記第1方向一方側に位置し、かつ前記第1配線部、前記第2配線部および前記第3配線部のいずれにも繋がる第4配線部と、を含む、付記21に記載の半導体モジュール。
付記23.
前記第4配線部は、前記厚さ方向に見て前記複数の第1半導体素子と重なる、付記22に記載の半導体モジュール。
付記24.
前記第4配線部は、当該第4配線部の他の部位よりも前記厚さ方向に突き出た複数の凸状領域を有しており、各凸状領域は、前記厚さ方向に見て、前記複数の第1半導体素子のうちの対応する1つと重なる、付記23に記載の半導体モジュール。
付記25.
前記複数の第1半導体素子および前記複数の第2半導体素子は、各々、前記厚さ方向に互いに離間したソース電極およびドレイン電極を有しており、
前記第1導通部材は、各第1半導体素子の前記ソース電極に接続されており、
前記第1導電部は、各第1半導体素子の前記ドレイン電極に接続されており、
前記第3配線部は、各第2半導体素子の前記ソース電極に接続されており、
前記第2導電部は、各第2半導体素子の前記ドレイン電極に接続されている、付記22ないし24のいずれかに記載の半導体モジュール。
付記26.
前記複数の第1半導体素子と前記複数の第2半導体素子とは、前記第1方向に見て互いに重なる、付記25に記載の半導体モジュール。
付記27.
前記第1入力端子、前記第2入力端子および前記第3入力端子は、前記第2方向に見て互いに重なる、付記21ないし26のいずれかに記載の半導体モジュール。
付記28.
前記第1導通部材および前記第2導通部材は、金属製の板材により構成される、付記19ないし27のいずれかに記載の半導体モジュール。
10A:第1半導体素子 10B:第2半導体素子
101:素子主面 102:素子裏面
11:第1主面電極(ゲート電極)
12:第2主面電極(ソース電極)
13:第3主面電極 14:第4主面電極
15:裏面電極(ドレイン電極) 16:第5主面電極
171,172,173,174:角
181,182,183,184:角
191:第1辺 192:第2辺
193:第3辺 194:第4辺
2:導電基板 2A:第1導電部
2B:第2導電部 201:主面
201a:凹部 201b:凹部端縁
202:裏面 21:基材
22:主面接合層 23:裏面接合層
3:支持基板 301:支持面
302:底面 31:絶縁層
32:第1金属層 32A:第1部
32B:第2部 321:第1接合層
33:第2金属層 41:第1入力端子
411:入力側接合面 412:入力側側面
413:先端面 414:側方面
42:第2入力端子 421:入力側接合面
422:入力側側面 423:先端面
424:側方面 43:第3入力端子
431:入力側接合面 432:入力側側面
433:先端面 434:側方面
44:出力端子 441:出力側接合面
442:出力側側面 443:先端面
444:側方面 45:制御端子
451:ホルダ 452:金属ピン
459:導電性接合材
46A,46B,46C,46D,46E:第1制御端子
47A,47B,47C,47D:第2制御端子
5:制御端子支持体 51:絶縁層
52:第1金属層 521:第1部
522:第2部 523:第3部
524:第4部 525:第5部
53:第2金属層 59:接合材
6:導通部材 601:第1部
61:第1導通部材 61h:開口
62:第2導通部材 62A:第1部
62B:第2部 621:第1配線部
622:第2配線部 623:第3配線部
623a:凹状領域 623h:開口
624:第4配線部 625:第1帯状部
625a:凸状領域 625h:開口
626:第2帯状部 627:第1端縁
628:第2端縁 63:開口
69:導電性接合材 71:第1導電性接合材
711:第1基層 712:第1層
713:第2層 72:第2導電性接合材
721:第2基層 722:第3層
723:第4層 731:ワイヤ
731a:第1ワイヤ 731b:第2ワイヤ
732,733,734,735:ワイヤ
8:封止樹脂 81:樹脂主面
82:樹脂裏面 831,832:樹脂側面
832a:凹部 833,834:樹脂側面
851:第1突出部 851a:第1突出端面
851b:凹部 851c:内壁面
852:第2突出部 86:樹脂空隙部
861:樹脂空隙部端縁 87:樹脂部
88:樹脂充填部 91:金型
911:押さえピン
Claims (8)
- 厚さ方向に互いに離間した主面および裏面を有する導電基板と、
前記主面に電気的に接合され且つスイッチング機能を有する少なくとも1つの半導体素子と、
前記少なくとも1つの半導体素子によってスイッチングされる主回路電流の経路を構成する導通部材と、
前記導電基板に対して前記厚さ方向に直交する第1方向の一方側に配置された第1入力端子、第2入力端子および第3入力端子と、
前記導電基板に対して前記第1方向の他方側に配置された少なくとも1つの出力端子と、
前記少なくとも1つの半導体素子に接続された少なくとも1つの制御端子と、
前記導電基板の少なくとも一部と、前記少なくとも1つの半導体素子と、前記第1入力端子、前記第2入力端子、前記第3入力端子および前記少なくとも1つの出力端子の一部ずつと、前記少なくとも1つの制御端子の一部とを覆う封止樹脂と、
を備え、
前記導電基板は、前記第1方向に互いに離間配置された第1導電部および第2導電部を含み、
前記少なくとも1つの半導体素子は、前記第1導電部に電気的に接合された複数の第1半導体素子と、前記第2導電部に電気的に接合された複数の第2半導体素子と、を含み、
前記第1入力端子は、前記複数の第1半導体素子および前記複数の第2半導体素子のいずれか一方と電気的に接続されており、
前記第2入力端子および前記第3入力端子は、前記第1入力端子を挟んで、前記厚さ方向および前記第1方向に直交する第2方向の一方側および他方側にそれぞれ配置されつつ、前記第1入力端子とは極性が逆であり、かつ前記複数の第1半導体素子および前記複数の第2半導体素子のいずれか他方と電気的に接続されており、
前記少なくとも1つの出力端子は、前記第2導電部に電気的に接続されており、
前記封止樹脂は、前記厚さ方向に見て前記第1入力端子と前記第2入力端子の間に前記第1方向の他方側に窪んだ第1凹部と、前記厚さ方向に見て前記第1入力端子と前記第3入力端子の間に前記第1方向の他方側に窪んだ第2凹部とを有し、
前記少なくとも1つの制御端子は、前記主面上に配置され、かつ前記厚さ方向に沿って延びる、半導体モジュール。 - 前記少なくとも1つの制御端子は、前記複数の第1半導体素子を制御する複数の第1制御端子と、前記複数の第2半導体素子を制御する複数の第2制御端子と、を含み、
前記複数の第1制御端子は、前記第1導電部に支持され、かつ前記第1方向において前記複数の第1半導体素子と前記第1入力端子および前記第2入力端子との間に配置されており、
前記複数の第2制御端子は、前記第2導電部に支持され、かつ前記第1方向において前記複数の第2半導体素子と前記少なくとも1つの出力端子との間に配置されている、請求項1に記載の半導体モジュール。 - 前記複数の第1半導体素子と前記複数の第2半導体素子とは、前記第1方向に見て互いに重なる、請求項1に記載の半導体モジュール。
- 前記第1入力端子、前記第2入力端子および前記第3入力端子は、前記第2方向に見て互いに重なる、請求項1に記載の半導体モジュール。
- 前記第1入力端子および前記第2入力端子は、それぞれ、前記第1方向の一方側に向かって延び、かつ前記厚さ方向の一方側に向く入力側接合面を含み、
前記少なくとも1つの出力端子は、前記第1方向の他方側に向かって延び、かつ、前記厚さ方向の一方側に向く出力側接合面を含む、請求項1に記載の半導体モジュール。 - 前記第1入力端子および前記第2入力端子は、それぞれ、前記厚さ方向に見て前記入力側接合面の周縁に位置し、かつ当該入力側接合面の法線と交差する方向を向く入力側側面と、当該入力側側面に形成された入力側加工痕と、を有し、
前記少なくとも1つの出力端子は、前記厚さ方向に見て前記出力側接合面の周縁に位置し、かつ当該出力側接合面の法線と交差する方向を向く出力側側面と、当該出力側側面に形成された出力側加工痕と、を有する、請求項5に記載の半導体モジュール。 - 前記第1方向に互いに離間した第1樹脂側面および第2樹脂側面を有し、前記第2樹脂側面は、前記第1樹脂側面よりも前記第2導電部に近い位置にあり、前記第2樹脂側面は、前記第2方向に互いに離間した2つの端部を有し、少なくともそのうちの1つの端部に樹脂分離痕が形成されている、請求項1に記載の半導体モジュール。
- 前記少なくとも1つの出力端子は、第1出力端子と第2出力端子とを含み、
前記封止樹脂は、前記第1出力端子と前記第2出力端子との間において樹脂分離痕が形成された樹脂側面を有する、請求項1に記載の半導体モジュール。
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