JP2009130163A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2009130163A JP2009130163A JP2007304092A JP2007304092A JP2009130163A JP 2009130163 A JP2009130163 A JP 2009130163A JP 2007304092 A JP2007304092 A JP 2007304092A JP 2007304092 A JP2007304092 A JP 2007304092A JP 2009130163 A JP2009130163 A JP 2009130163A
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Abstract
【解決手段】半導体装置1では、樹脂ケース40に固定支持された複数の外部接続用端子50a,51a,52a,53aと、樹脂ケース40内に包容された、少なくとも一つの半導体素子と、半導体素子に配設された電極に導通する端子台23a,23b,24a,24bと、端子台23a,23b,24a,24bと外部接続用端子50a,51a,52a,53aとの電気的接続をする配線用端子50b,51b,52bと、を備え、当該外部接続用端子と当該配線用端子、または、当該端子台と当該外部接続用端子とがねじ止めにより接合されている。これにより、歩留まりが高く、半導体装置1の配線用端子50b,51b,52bの配置構造を、簡便に変更し得る半導体装置が実現する。
【選択図】図1
Description
例えば、図11に、パワー半導体素子を樹脂ケース内に封止させた半導体装置の要部模式図を示す。この図では、配線用端子で内部配線を行った半導体装置の一例が示されている。
また、超音波接合においては、接合部分を樹脂ケース400内で中空状態で行う場合があり、その接合が確実でない場合が生じる。
本発明はこのような点に鑑みてなされたものであり、歩留まりが高く、複数の半導体素子を樹脂ケースにより包容した半導体装置の配線用端子の配置構造を、簡便に変更し得る半導体装置を提供することを目的とする。
<第1の実施の形態>
図1は第1の実施の形態に係る半導体装置の要部模式図である。ここで、図(a)には、半導体装置の平面模式図が例示され、図(b)には図(a)の破線X−Xの位置における断面を矢印の方向に矢視する図が表示されている。尚、図1では、インバータ回路一相分の半導体モジュール(パワーモジュール)の一例が例示されている。
即ち、半導体装置1においては、樹脂ケース40に固設された外部接続用端子50aに配線用端子50bの一端が電気的に接続され、当該配線用端子50bのもう一方の端は、端子台24bを通じて、IGBT素子30bのコレクタ電極並びにFWD素子31bのカソード側に電気的に接続されている。
即ち、半導体装置1においては、樹脂ケース40に固設された外部接続用端子52aに配線用端子52bの一端が電気的に接続され、当該配線用端子52bの中部が端子台23bを通じて、IGBT素子30bのエミッタ電極並びにFWD素子31bのアノード側に電気的に接続されている。更に、当該配線用端子52bのもう一方の端は、端子台24aを通じて、IGBT素子30aのコレクタ電極並びにFWD素子31aのカソード側に電気的に接続されている。
特に、封止用樹脂41として、エポキシ樹脂を用いた場合は、端子台23a,23b,24a,24bの外周が当該エポキシ樹脂により封止される。
また、外部接続用端子50a,51a,52a,53a、配線用端子50b,51b,52b、並びに端子台24a,24bは、例えば、銅(Cu)またはアルミニウム(Al)またはこれらの合金を主成分とした材質により構成されている。
また、ねじ60によるねじ止め部分が樹脂ケース40内で中空状態であっても、当該ねじ止めにより、確実かつ簡便に各部材同士を接合することができる。
しかし、配線用端子50b,51b,52bの配置を変更することにより、外部接続用端子50aを負極入力端子、外部接続用端子51aを正極入力端子とすることができる。即ち、配線用端子50b,51b,52bの配置を変更することにより、外部接続用端子50a,51aの極を入れ替えることができる。
図4に示す配置では、外部接続用端子50aには、配線用端子51bの一端がねじ60によるねじ止めにより接合され、配線用端子51bのもう一方の端は、ねじ60によるねじ止めにより、端子台23aの上面に接合されている。
また、同じ要領にて、配線用端子51bの一端をねじ止めにて外部接続用端子52aに接合し、配線用端子52bの一端をねじ止めにて外部接続用端子51aに接合することができる。
また、予備端子である外部接続用端子53aを、正極入力端子、負極入力端子、交流出力端子の何れかにすることも可能である。
また、配線用端子50b,51b,52bの長さ、幅、厚みを調整することにより、配線抵抗、リアクタンス、放熱量等を回路の性能に応じて自由に調整することができる。
次に、半導体装置1の形態を変形させた半導体装置2について説明する。
図5は第2の実施の形態に係る半導体装置の要部断面模式図である。
次に、半導体装置1の形態を変形させた別の半導体装置3について説明する。
図6は第3の実施の形態に係る半導体装置の要部模式図である。ここで、図(a)には、半導体装置の平面模式図が例示され、図(b)には図(a)の破線X−Xの位置における断面を矢印の方向に矢視する図が表示されている。
次に、半導体装置1の形態を変形させた、更に別の半導体装置4について説明する。
図7は第4の実施の形態に係る半導体装置の要部模式図である。ここで、図(a)には、半導体装置の平面模式図が例示され、図(b)には図(a)の破線X−Xの位置における断面を矢印の方向に矢視する図が表示されている。
次に、半導体装置1の形態を変形させた、更に別の半導体装置5について説明する。
図8は第5の実施の形態に係る半導体装置の要部模式図である。ここで、図(a)には、半導体装置の平面模式図が例示され、図(b)には図(a)の破線X−Xの位置における断面を矢印の方向に矢視する図が表示されている。
次に、半導体装置1の形態を変形させた、更に別の半導体装置6について説明する。
図9は第6の実施の形態に係る半導体装置の要部平面模式図である。
例えば、夫々の配線用端子50bは、Pバスバー50bbにて連結され、夫々の配線用端子50bの一端がねじ止めにより外部接続用端子50aに接合されている。更に、夫々の配線用端子50bのもう一方の端は、ねじ止めにより、端子台24bの上面に接合されている。
尚、図9では、Pバスバー50bbと配線用端子50b、Nバスバー51bbと配線用端子51bとが一体となった構成を例示しているが、当該Pバスバー50bb、Nバスバー51bbは必要に応じて所定の長さに分断し、継ぎ手部分をねじ60によるねじ止めにより接続してもよい。また、半導体装置1を配置する数については、3個に限ることはない。使用者側の要望に応じて、半導体装置1を2個配置してもよく、4個以上配置してもよい。
次に、半導体装置1の形態を変形させた、更に別の半導体装置7について説明する。
図10は第7の実施の形態に係る半導体装置の模式図である。
尚、このようなヒートスプレッダ25を備えた素子は、IGBT素子30aに限るものではない。上述したIGBT素子30b、FWD素子31a,31bにおいても、ヒートスプレッダ25を備え、対応する配線用端子を接合させてもよい。
10 金属ベース板
20 絶縁基板
20b,20c 金属箔
20a,72 絶縁板
21 金属ワイヤ
22 ピン端子
23a,23b,24a,24b 端子台
25 ヒートスプレッダ
25a,51bh ねじ穴
30a,30b IGBT素子
31a,31b FWD素子
30g 制御電極
40a 支持台
40 樹脂ケース
41 封止用樹脂
50a,51a,52a,53a 外部接続用端子
50bb,51bb バスバー
50b,51b,52b 配線用端子
60 ねじ
60a 孔部
61 スペーサ
70 プリント基板
71 金属板
Claims (11)
- 樹脂ケースに固定支持された複数の外部接続用端子と、
前記樹脂ケース内に包容された、少なくとも一つの半導体素子と、
前記半導体素子に配設された電極に導通する端子台と、
前記端子台と前記外部接続用端子との電気的接続をする配線用端子と、
を備え、
前記外部接続用端子と前記配線用端子、または、前記端子台と前記外部接続用端子との少なくとも何れかがねじ止めにより接合されていることを特徴とする半導体装置。 - 前記電極が前記半導体素子の主電極であることを特徴とする請求項1記載の半導体装置。
- 前記端子台は、前記半導体素子の電極に接合された放熱部材であることを特徴とする請求項1記載の半導体装置。
- 前記端子台が屈曲構造を備えていることを特徴とする請求項1記載の半導体装置。
- 前記樹脂ケース内に、少なくとも前記半導体素子を封止する樹脂が充填され、前記配線用端子が前記樹脂から表出していることを特徴とする請求項1記載の半導体装置。
- 前記樹脂ケース内に少なくとも前記半導体素子を封止する樹脂が充填されていると共に、前記樹脂がねじ止めに用いるねじを封止していることを特徴とする請求項1記載の半導体装置。
- 複数の前記配線用端子が絶縁板に固着されていることを特徴とする請求項1または5記載の半導体装置。
- 前記外部接続用端子と前記配線用端子、または、前記端子台と前記外部接続用端子とがねじ止めにより接合されていると共に、前記外部接続用端子に、少なくとも温度センサー回路、過電圧保護回路、過電流保護回路、シールド層の何れかを配置した、少なくとも一枚のプリント基板がねじ止めにより固定されていることを特徴とする請求項1記載の半導体装置。
- 前記プリント基板に、ねじ止めに用いるねじを通じて、前記半導体素子の前記電極に導通する配線パターンが配置されていることを特徴とする請求項8記載の半導体装置。
- 前記外部接続用端子と前記配線用端子、または、前記端子台と前記外部接続用端子とがねじ止めにより接合されていると共に、前記外部接続用端子に、少なくとも一枚のシールド板がねじ止めにより固定されていることを特徴とする請求項1記載の半導体装置。
- 樹脂ケースに固定支持された複数の外部接続用端子と、
前記樹脂ケース内に包容された、少なくとも一つの半導体素子と、
前記半導体素子に配設された電極に導通する端子台と、
前記端子台と前記外部接続用端子との電気的接続をする配線用端子と、
を備え、
前記外部接続用端子と前記配線用端子、または、前記端子台と前記外部接続用端子とがねじ止めにより接合されている、複数の半導体モジュール間の前記配線用端子を連結したことを特徴とする半導体装置。
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JP2011187691A (ja) * | 2010-03-09 | 2011-09-22 | Mitsubishi Electric Corp | ピン端子の接合方法及び装置、並びにピン端子付きパワー基板 |
JP2013034022A (ja) * | 2012-11-12 | 2013-02-14 | Fuji Electric Co Ltd | 半導体装置 |
JPWO2012039115A1 (ja) * | 2010-09-24 | 2014-02-03 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 回路装置 |
WO2014069406A1 (ja) | 2012-10-29 | 2014-05-08 | 富士電機株式会社 | 半導体装置 |
JP5789264B2 (ja) * | 2010-09-24 | 2015-10-07 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 回路装置 |
JP2016006834A (ja) * | 2014-06-20 | 2016-01-14 | 株式会社豊田自動織機 | 半導体装置 |
JP2016162992A (ja) * | 2015-03-05 | 2016-09-05 | 三菱電機株式会社 | パワー半導体装置 |
CN108447845A (zh) * | 2018-05-21 | 2018-08-24 | 臻驱科技(上海)有限公司 | 一种功率半导体模块衬底及功率半导体模块 |
JP2020089052A (ja) * | 2018-11-26 | 2020-06-04 | 三菱電機株式会社 | 電力変換装置 |
JP7433562B1 (ja) | 2023-06-14 | 2024-02-19 | 三菱電機株式会社 | 半導体装置 |
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JP5789264B2 (ja) * | 2010-09-24 | 2015-10-07 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 回路装置 |
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CN108447845A (zh) * | 2018-05-21 | 2018-08-24 | 臻驱科技(上海)有限公司 | 一种功率半导体模块衬底及功率半导体模块 |
JP2020089052A (ja) * | 2018-11-26 | 2020-06-04 | 三菱電機株式会社 | 電力変換装置 |
JP7433562B1 (ja) | 2023-06-14 | 2024-02-19 | 三菱電機株式会社 | 半導体装置 |
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