JP3911192B2 - Semiconductor device - Google Patents

Semiconductor device Download PDF

Info

Publication number
JP3911192B2
JP3911192B2 JP2002134392A JP2002134392A JP3911192B2 JP 3911192 B2 JP3911192 B2 JP 3911192B2 JP 2002134392 A JP2002134392 A JP 2002134392A JP 2002134392 A JP2002134392 A JP 2002134392A JP 3911192 B2 JP3911192 B2 JP 3911192B2
Authority
JP
Japan
Prior art keywords
plug
external connection
short
circuit
semiconductor device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2002134392A
Other languages
Japanese (ja)
Other versions
JP2003332525A (en
Inventor
智宏 稗田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2002134392A priority Critical patent/JP3911192B2/en
Publication of JP2003332525A publication Critical patent/JP2003332525A/en
Application granted granted Critical
Publication of JP3911192B2 publication Critical patent/JP3911192B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/02Bonding areas; Manufacturing methods related thereto
    • H01L2224/04Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/06Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
    • H01L2224/0601Structure
    • H01L2224/0603Bonding areas having different sizes, e.g. different heights or widths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805Shape
    • H01L2224/4809Loop shape
    • H01L2224/48091Arched
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48135Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
    • H01L2224/48137Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10Details of semiconductor or other solid state devices to be connected
    • H01L2924/11Device type
    • H01L2924/13Discrete devices, e.g. 3 terminal devices
    • H01L2924/1304Transistor
    • H01L2924/1305Bipolar Junction Transistor [BJT]
    • H01L2924/13055Insulated gate bipolar transistor [IGBT]

Landscapes

  • Power Conversion In General (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、スイッチング素子としてモータ制御等に使用される半導体素子を備えた電力用半導体装置に関する。
【0002】
【従来の技術】
図12は従来の電力用半導体装置を示しており、絶縁基板(セラミックス基板)52の表主面に複数のCuパターン電極54が形成されている。Cuパターン電極54の一つに接合された半導体素子56はAlワイヤ58を介して他のCuパターン電極54に接続されており、各Cuパターン電極54には、コレクタ端子60、ゲート端子62あるいはエミッタ端子64がそれぞれ接続されている。
【0003】
また、図13は、複数の半導体素子56が並列接続された従来の電力用半導体装置を示しており、素子間がAlワイヤ58により接続されている。
【0004】
【発明が解決しようとする課題】
図12の構成の電力用半導体装置にあっては、ゲート端子62及びエミッタ端子64間がオープン状態のため、製造時の静電気、過電圧等によるMOS系半導体素子の絶縁ゲート破壊を招くという問題があった。
【0005】
この問題に鑑み、特開平1−268160号公報、特開平8−32022号公報あるいは実開平7−29854号公報には、静電気による絶縁ゲート破壊を防止するようにしたパワーモジュール、コネクタあるいはIGBTが開示されているが、取り扱いが容易で、複数の半導体素子を並列接続した電力用半導体装置においても簡素な構成で絶縁ゲート破壊を防止できる構造のものはなかった。
【0006】
また、図13の構成の電力用半導体装置にあっては、素子間がAlワイヤ58により接続されているため、複数の半導体素子56の個別の特性検査ができず、複数の半導体素子56のいずれかが破壊した場合でも、その検出は容易ではなかった。
【0007】
本発明は、従来技術の有するこのような問題点に鑑みてなされたものであり、並列接続された複数の半導体素子を有する電力用半導体装置において、簡素な構成で、半導体素子の並列接続と絶縁ゲート破壊の防止を達成できるとともに、破壊された素子を容易に検出することができ、ゲート抵抗のバランス取りを容易に行うことのできる電力用半導体装置を提供することを目的としている。
【0008】
【課題を解決するための手段】
上記目的を達成するために、本発明のうちで請求項1に記載の発明は、ケース内に収納された電力用絶縁基板の表主面上に形成された主回路パターン上に複数の絶縁ゲート型スイッチング半導体素子を実装して並列に接続する電力用半導体装置において、前記複数の絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路をそれぞれ短絡する複数のソケットと、該複数のソケットに挿入され短絡を解除すると同時に、前記複数の絶縁ゲート型スイッチング半導体素子を並列に接続するプラグ式外部接続部材とを備え、前記プラグ式外部接続部材を、絶縁性支持体と、該絶縁性支持体と一体成形された二つの外部接続用端子とにより形成し、前記絶縁性支持体に複数の短絡解除片を形成するとともに、該複数の短絡解除片の各々の両側に前記二つの外部接続用端子の分岐端をそれぞれ配置したことを特徴とする。
【0010】
さらに、請求項に記載の発明は、前記プラグ式外部接続部材の外部接続用端子を支持する絶縁性支持体内に凹部を形成し、前記外部接続用端子を前記凹部内に突出させたことを特徴とする。
【0011】
また、請求項に記載の発明は、ケース内に収納された電力用絶縁基板の表主面上に形成された主回路パターン上に複数の絶縁ゲート型スイッチング半導体素子を実装して並列に接続する電力用半導体装置において、前記複数の絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路をそれぞれ短絡する複数のソケットと、該複数のソケットに挿入され短絡を個々に解除すると同時に、前記複数の絶縁ゲート型スイッチング半導体素子を個々に外部接続可能とするプラグ式外部接続部材とを備え、前記プラグ式外部接続部材を、絶縁性支持体と、該絶縁性支持体と一体成形された複数対の外部接続用端子とにより形成し、前記絶縁性支持体に複数の短絡解除片を形成するとともに、該複数の短絡解除片の各々の両側に前記複数対の外部接続用端子のうちの一対をそれぞれ配置したことを特徴とする。
【0013】
また、請求項に記載の発明は、前記プラグ式外部接続部材に、前記絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路に接続される抵抗体を装着する開口部を設けたことを特徴とする。
【0014】
【発明の実施の形態】
以下、本発明の実施の形態について、図面を参照しながら説明する。
【0015】
実施の形態1.
図1は、本発明の実施の形態1にかかる電力用半導体装置を示しており、ケース(図示せず)内に収納された電力用絶縁基板(セラミックス基板)2の表主面上に主回路パターン(例えば、Cuパターン)による複数の電極4が形成されている。また、主回路パターンに実装される絶縁ゲート型スイッチング半導体素子等の半導体素子6は、複数の電極4の一つに接合されるとともに、Alワイヤ8を介して他の電極4に接続されており、各電極4には、コレクタ端子10、ゲート端子12あるいはエミッタ端子14がそれぞれ接続されている。
【0016】
図2に示されるように、ゲート端子12あるいはエミッタ端子14が接続された二つの電極4にはソケット16が取り付けられており、ソケット16は、内部に凹部18aが形成された樹脂製の絶縁性支持体18と、絶縁性支持体18と一体成形された隣接する二つの電極20とを備えている。各電極20は中間部で折曲され、その先端は円弧状に形成される一方、その基端は電極4にはんだ付けにより接合されている。製造時には、二つの電極20の先端部は、円弧状形状により弾性のある状態で互いに当接しており、静電気、過電圧等により絶縁ゲート破壊が発生する虞はない。
【0017】
一方、上述した構成の電力用半導体装置を製造後、絶縁性材料により形成されたプラグ(短絡解除部材)22がソケット16に差し込まれるが、このプラグ22は、その下面中央部より下方に延びる短絡解除片22aと、下面両端部より下方に延びソケット16に係止される係止片22bとを有している。
【0018】
電力用半導体装置の製造後、図3に示されるように、プラグ22の短絡解除片22aを、互いに当接している二つの電極20の先端部に差し込むと、ゲート端子12とエミッタ端子14とが短絡状態からオープン状態になり、ゲート駆動回路(図示せず)の短絡が解除される。この時、プラグ22の係止片22bがソケット16の絶縁性支持体18の長手方向両端部に形成された係止部18bに係止され、プラグ22はソケット16に一体的に保持される。
【0019】
実施の形態2.
図4乃至図6は、本発明の実施の形態2にかかる電力用半導体装置を示しており、上述した実施の形態1において、電極4に接合されたゲート端子12及びエミッタ端子14をプラグ(プラグ式外部接続部材)22Aに設けた点にある。
【0020】
すなわち、図4及び図5に示されるように、二つの外部接続用端子(ゲート端子及びエミッタ端子)12,14は、ケース24内に取り付けられた電極4には設けられておらず、プラグ22Aに一体的に形成されている。
【0021】
図6に示されるように、プラグ22Aは、絶縁性支持体26と、絶縁性支持体26と一体成形され互いに離間したゲート端子12及びエミッタ端子14とを有するとともに、その下面中央部より下方に延びる短絡解除片22aと、下面両端部より下方に延びソケット16に係止される係止片22bとを有している。また、ゲート端子12及びエミッタ端子14は、絶縁性支持体26の内部で折曲され、その下部は短絡解除片22aの両側に配置されている。
【0022】
電力用半導体装置の製造後、図5及び図6に示されるように、プラグ22Aの短絡解除片22aを、互いに当接している二つの電極20の先端部に差し込むと、二つの電極20は短絡状態からオープン状態になるとともに、ゲート端子12及びエミッタ端子14は対応する電極20と接触する。この時、プラグ22Aの係止片22bがソケット16の絶縁性支持体18の長手方向両端部に形成された係止部18bに係止され、プラグ22Aはソケット16に一体的に保持される。
【0023】
上記構成は、従来電極4に接合されていた端子が不要になるので、パッケージを小型化することができる。
【0024】
また、図7に示されるように、プラグ22A’に凹部22cを形成し、この凹部22c内にゲート端子12及びエミッタ端子14を突出させるとともに、凹部22c内でゲート端子12及びエミッタ端子14を対応するリード線23と接続することもできる。
【0025】
ソケット16にプラグ22A’を挿入すると半導体素子が静電破壊する虞があるが、ゲート端子12及びエミッタ端子14の先端を絶縁性支持体26の外部に突出させないようにすることで、はんだ付け前に格別の注意を要することなく静電破壊を防止することができ、取り扱い上極めて至便で、静電破壊の確率を著しく低減できる。
【0026】
実施の形態3.
図8は、本発明の実施の形態3にかかる電力用半導体装置を示しており、隣接配置された複数(例えば、三つ)の半導体素子6の各々は、Alワイヤ8により対応するソケット16に個別に接続されている。
【0027】
また、プラグ(プラグ式外部接続部材)22Bは、絶縁性支持体26と、絶縁性支持体26と一体成形され互いに離間したゲート端子12及びエミッタ端子14とを有するとともに、その下面より下方に延びる複数の短絡解除片22aと、下面両端部より下方に延びソケット16に係止される係止片22bとを有している。また、ゲート端子12及びエミッタ端子14は、絶縁性支持体26の内部で折曲され、その下部は三つに分岐して、各分岐端はそれぞれ短絡解除片22aの両側に配置されている。
【0028】
電力用半導体装置の製造後、プラグ22Bの短絡解除片22aを、対応するソケット16の互いに当接している二つの電極20の先端部に差し込むと、二つの電極20はすべてのソケット16において同時に短絡状態からオープン状態になるとともに、ゲート端子12及びエミッタ端子14は対応する電極20と接触し、複数の半導体素子6は並列に接続される。この時、プラグ22Bの係止片22bがソケット16の絶縁性支持体18の長手方向両端部に形成された係止部18bに係止され、プラグ22Bはソケット16に一体的に保持される。
【0029】
図13の従来構成は、複数の半導体素子56が互いにAlワイヤ58により接続されており、個別の特性検査が不可能であったが、上記構成においてはプラグ22Bを使用していることから、複数の半導体素子6の各々に対し独立した特性検査を行うことができ、製造途中の工程であっても素子交換が可能で、生産性が向上する。
【0030】
なお、図8に示されるプラグ22Bには、外部接続用端子としてゲート端子12及びエミッタ端子14がそれぞれ一つ設けられているが、複数のソケット16の各々に対応してゲート端子12及びエミッタ端子14をそれぞれ一つ設ける構成も考えられる。
【0031】
この場合、並列接続されて使用される絶縁ゲート型スイッチング半導体素子等の半導体素子のいずれかが破壊しても、破壊した半導体素子の検出を容易に行うことができる。
【0032】
また、図7に示される形状を図8に示されるプラグ22Bに採用し、ゲート端子12及びエミッタ端子14を凹部内で対応するリード線と接続するようにしてもよい。
【0033】
実施の形態4.
図9は、本発明の実施の形態4にかかる電力用半導体装置に設けられるプラグアセンブリ(プラグ式外部接続部材)22Cを示しており、図8に示されるプラグ22Bを二つに分離し、分離したプラグ22C,22Cを互いに電気的に接続したものである。
【0034】
また、各プラグ22C,22Cの絶縁性支持体26には、二つの矩形開口部26aが所定の間隔で形成されており、この開口部26aに抵抗体28の両端を挿入することにより抵抗体28はゲート端子12に直列に接続される。
【0035】
この構成によれば、様々なIGBT素子特性に対応して開口部26aに挿入される抵抗体28を適宜選定することにより最適な内部ゲート抵抗値を設定できる。
【0036】
例えば、PKGとIIGBTとの組み合わせにおいて、抵抗値を任意に設定することにより電流変化率を変更でき、PKG内部インダクタンスの影響により発生するコレクタ・エミッタ間のサージ電圧を抑制することが可能となる。
【0037】
また、複数個の半導体素子の場合、信号から一番遠い側と近い側とでは配線インダクタンスの違いにより立ち上がり電流がアンバランスとなるため、抵抗値を任意に設定することにより配線インダクタンスを調整することが可能となる。
【0038】
さらに、並列接続以外に、実施の形態2のような単体でも有効である。
【0039】
実施の形態5.
図10は、本発明の実施の形態5にかかる電力用半導体装置に設けられるプラグアセンブリ(プラグ式外部接続部材)22Dを示しており、各プラグ22D,22D間をシールド・ツイスト線30で接続したものである。シールド・ツイスト線30を使用することで、サージ電圧を抑制したり、誘導ノイズから回避できる効果がある。
【0040】
また、各プラグ22D,22Dの表面をアルミニウム等の金属板で被覆すると、誘導ノイズから効果的に回避することができる。
【0041】
実施の形態6.
図11は、本発明の実施の形態6にかかる電力用半導体装置に設けられる電極4を示しており、絶縁メタライズ基板2の上に接合された電極4に、短絡用電極片4aを一体的に形成したものである。
【0042】
この構成は、図1に示されるソケット16の絶縁性支持体18が不要となり、パッケージを小型化できるとともに、部品点数が減少することで安価な電力用半導体装置を提供することができる。
【0043】
【発明の効果】
本発明は、以上説明したように構成されているので、以下に記載されるような効果を奏する。
【0044】
本発明のうちで請求項1に記載の発明によれば、複数の絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路をそれぞれ短絡する複数のソケットと、これら複数のソケットに挿入され短絡を解除すると同時に、複数の絶縁ゲート型スイッチング半導体素子を並列に接続するプラグ式外部接続部材とを設けたので、短絡解除の操作と半導体素子の並列接続を簡単かつ確実に行うことができるとともに、絶縁ゲート破壊を防止することができる。
【0045】
また、プラグ式外部接続部材の絶縁性支持体に複数の短絡解除片を形成するとともに、これら複数の短絡解除片の各々の両側に二つの外部接続用端子の分岐端を配置したので、簡素な構成で、半導体素子の並列接続と絶縁ゲート破壊の防止を同時に達成できる。
【0046】
さらに、請求項に記載の発明によれば、プラグ式外部接続部材の外部接続用端子を支持する絶縁性支持体内に凹部を形成し、外部接続用端子を凹部内に突出させたので、複数の半導体素子をプラグ式外部接続部材で並列接続する時あるいは並列接続した後も、半導体素子の静電破壊を防止することができ、取り扱いに格別な注意を払う必要がなく、取り扱いの容易な電力用半導体装置を提供することができる。
【0047】
また、請求項に記載の発明によれば、記複数の絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路をそれぞれ短絡する複数のソケットと、これら複数のソケットに挿入され短絡を個々に解除すると同時に、複数の絶縁ゲート型スイッチング半導体素子を個々に外部接続可能とするプラグ式外部接続部材とを設けたので、短絡解除を簡単かつ確実に行うことができるとともに、絶縁ゲート破壊を防止することができる。また、並列接続されて使用される絶縁ゲート型スイッチング素子のいずれかが破壊した場合の検出を容易に行うことができる。
【0048】
また、プラグ式外部接続部材の絶縁性支持体に複数の短絡解除片を形成するとともに、短絡解除片の各々の両側に複数対の外部接続用端子のうちの一対をそれぞれ配置したので、簡素な構成で、絶縁ゲート破壊を防止することができる。
【0049】
また、請求項に記載の発明によれば、プラグ式外部接続部材に、絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路に接続される抵抗体を装着する開口部を設けたので、並列接続される複数の絶縁ゲート型スイッチング素子のゲート抵抗のバランス化を容易に行うことができる。
【図面の簡単な説明】
【図1】 本発明の実施の形態1にかかる電力用半導体装置の斜視図である。
【図2】 図1の電力用半導体装置において、二つの電極を有するソケットにプラグを挿入して電極の短絡を解除する場合の動作を示すソケットとプラグの正面図である。
【図3】 ソケットにプラグをセットして電極の短絡を解除した状態を示すソケットとプラグの正面図である。
【図4】 本発明の実施の形態2にかかる電力用半導体装置の斜視図である。
【図5】 図4の電力用半導体装置において、二つの電極を有するソケットにプラグをセットして電極の短絡を解除した状態を示すソケットとプラグの斜視図である。
【図6】 図5のソケットとプラグの正面図である。
【図7】 図5のプラグの変形例を示す部分断面正面図である。
【図8】 本発明の実施の形態3にかかる電力用半導体装置の斜視図である。
【図9】 本発明の実施の形態4にかかる電力用半導体装置に設けられるプラグアセンブリの斜視図である。
【図10】 本発明の実施の形態5にかかる電力用半導体装置に設けられるプラグアセンブリの斜視図である。
【図11】 本発明の実施の形態6にかかる電力用半導体装置に設けられる電極の斜視図である。
【図12】 従来の電力用半導体装置の斜視図である。
【図13】 従来の別の電力用半導体装置の斜視図である。
【符号の説明】
2 絶縁基板、 4 電極、 6 半導体素子、 8 ワイヤ、
10 コレクタ端子、 12 ゲート端子、 14 エミッタ端子、
16 ソケット、 18 絶縁性支持体、 18a 凹部、 18b 係止部、
20 電極、 22 プラグ、 22a 短絡解除片、 22b 係止片、
22c 凹部、 23 リード線、
22A,22A’,22B,22C,22D プラグ式外部接続部材、
24 ケース、26 絶縁性支持体、 28 抵抗体、
30 シールド・ツイスト線。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power semiconductor device including a semiconductor element used for motor control or the like as a switching element.
[0002]
[Prior art]
FIG. 12 shows a conventional power semiconductor device, in which a plurality of Cu pattern electrodes 54 are formed on the front main surface of an insulating substrate (ceramic substrate) 52. A semiconductor element 56 bonded to one of the Cu pattern electrodes 54 is connected to another Cu pattern electrode 54 via an Al wire 58, and each Cu pattern electrode 54 has a collector terminal 60, a gate terminal 62, or an emitter. Terminals 64 are connected to each other.
[0003]
FIG. 13 shows a conventional power semiconductor device in which a plurality of semiconductor elements 56 are connected in parallel, and the elements are connected by an Al wire 58.
[0004]
[Problems to be solved by the invention]
The power semiconductor device having the configuration shown in FIG. 12 has a problem in that the gate terminal 62 and the emitter terminal 64 are in an open state, which causes breakdown of the insulated gate of the MOS semiconductor element due to static electricity, overvoltage, etc. during manufacture. It was.
[0005]
In view of this problem, Japanese Patent Application Laid-Open No. 1-268160, Japanese Patent Application Laid-Open No. 8-32022, or Japanese Utility Model Application Laid-Open No. 7-29854 discloses a power module, a connector, or an IGBT that prevents breakdown of an insulated gate due to static electricity. However, there are no power semiconductor devices that are easy to handle and that can prevent breakdown of the insulated gate with a simple configuration even in a power semiconductor device in which a plurality of semiconductor elements are connected in parallel.
[0006]
Further, in the power semiconductor device having the configuration shown in FIG. 13, since the elements are connected by the Al wire 58, individual characteristic inspection of the plurality of semiconductor elements 56 cannot be performed. Even if Kagana was destroyed, its detection was not easy.
[0007]
The present invention has been made in view of the above-described problems of the prior art. In a power semiconductor device having a plurality of semiconductor elements connected in parallel, the semiconductor elements are connected in parallel and insulated with a simple configuration. It is an object of the present invention to provide a power semiconductor device that can achieve prevention of gate breakdown, can easily detect a broken element, and can easily balance gate resistance.
[0008]
[Means for Solving the Problems]
To achieve the above object, the invention according to claim 1 of the present invention is characterized in that a plurality of insulated gates are formed on a main circuit pattern formed on a front main surface of a power insulating substrate housed in a case. In a power semiconductor device in which a type switching semiconductor element is mounted and connected in parallel, a plurality of sockets for short-circuiting each gate drive circuit of each of the plurality of insulated gate type switching semiconductor elements, and a short circuit inserted in the plurality of sockets And a plug-type external connection member for connecting the plurality of insulated gate switching semiconductor elements in parallel, and the plug-type external connection member is integrally formed with the insulating support and the insulating support. Formed with two external connection terminals, and a plurality of short-circuit releasing pieces are formed on the insulating support, and on both sides of each of the plurality of short-circuit releasing pieces. Wherein the serial two branch ends of the external connection terminal is disposed, respectively.
[0010]
Furthermore, in the invention described in claim 2 , a recess is formed in the insulating support body that supports the external connection terminal of the plug-type external connection member, and the external connection terminal is projected into the recess. Features.
[0011]
According to a third aspect of the present invention, a plurality of insulated gate switching semiconductor elements are mounted in parallel on a main circuit pattern formed on a front main surface of a power insulating substrate housed in a case and connected in parallel. In the power semiconductor device, a plurality of sockets for short-circuiting each gate drive circuit of each of the plurality of insulated gate switching semiconductor elements, and the plurality of insulations are simultaneously inserted into the plurality of sockets to release the short circuit. A plug-type external connection member capable of individually connecting the gate-type switching semiconductor element to the outside, and the plug-type external connection member includes an insulating support and a plurality of pairs of external parts integrally formed with the insulating support. And a plurality of short-circuit releasing pieces formed on the insulating support, and the plurality of pairs of external parts on both sides of each of the plurality of short-circuit releasing pieces. And a pair of characterized in that arranged within the connection terminal.
[0013]
The invention according to claim 4 is characterized in that the plug-type external connection member is provided with an opening for mounting a resistor connected to each gate drive circuit of the insulated gate switching semiconductor element. To do.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
Embodiment 1 FIG.
FIG. 1 shows a power semiconductor device according to a first embodiment of the present invention, in which a main circuit is formed on the front main surface of a power insulating substrate (ceramic substrate) 2 housed in a case (not shown). A plurality of electrodes 4 having a pattern (for example, Cu pattern) are formed. A semiconductor element 6 such as an insulated gate switching semiconductor element mounted on the main circuit pattern is bonded to one of the plurality of electrodes 4 and connected to the other electrode 4 through an Al wire 8. Each electrode 4 is connected to a collector terminal 10, a gate terminal 12, or an emitter terminal 14, respectively.
[0016]
As shown in FIG. 2, a socket 16 is attached to the two electrodes 4 to which the gate terminal 12 or the emitter terminal 14 is connected, and the socket 16 is made of resin insulating material having a recess 18a formed therein. A support 18 and two adjacent electrodes 20 integrally formed with the insulating support 18 are provided. Each electrode 20 is bent at an intermediate portion, and its tip is formed in an arc shape, while its base end is joined to the electrode 4 by soldering. At the time of manufacture, the tip portions of the two electrodes 20 are in contact with each other in an elastic state due to the arc shape, and there is no possibility that the insulated gate breaks down due to static electricity, overvoltage or the like.
[0017]
On the other hand, after manufacturing the power semiconductor device having the above-described configuration, a plug (short-circuit releasing member) 22 formed of an insulating material is inserted into the socket 16, and the plug 22 is short-circuited to extend downward from the center of the lower surface. The release piece 22a has a locking piece 22b that extends downward from both ends of the lower surface and is locked to the socket 16.
[0018]
After the manufacture of the power semiconductor device, as shown in FIG. 3, when the short-circuit release piece 22a of the plug 22 is inserted into the tip portions of the two electrodes 20 in contact with each other, the gate terminal 12 and the emitter terminal 14 are connected. From the short circuit state to the open state, the short circuit of the gate drive circuit (not shown) is released. At this time, the locking piece 22 b of the plug 22 is locked to locking portions 18 b formed at both ends in the longitudinal direction of the insulating support 18 of the socket 16, and the plug 22 is held integrally with the socket 16.
[0019]
Embodiment 2. FIG.
4 to 6 show a power semiconductor device according to the second embodiment of the present invention. In the first embodiment described above, the gate terminal 12 and the emitter terminal 14 joined to the electrode 4 are plugged (plug). Formula external connection member) 22A.
[0020]
That is, as shown in FIGS. 4 and 5, the two external connection terminals (gate terminal and emitter terminal) 12 and 14 are not provided on the electrode 4 mounted in the case 24, and the plug 22A Are integrally formed.
[0021]
As shown in FIG. 6, the plug 22 </ b> A has an insulating support 26, a gate terminal 12 and an emitter terminal 14 that are integrally formed with the insulating support 26 and spaced apart from each other. It has a short-circuit releasing piece 22a that extends and a locking piece 22b that extends downward from both ends of the lower surface and is locked to the socket 16. Further, the gate terminal 12 and the emitter terminal 14 are bent inside the insulating support 26, and the lower portions thereof are arranged on both sides of the short-circuit releasing piece 22a.
[0022]
After manufacturing the power semiconductor device, as shown in FIGS. 5 and 6, when the short-circuit releasing piece 22a of the plug 22A is inserted into the tip portions of the two electrodes 20 that are in contact with each other, the two electrodes 20 are short-circuited. The gate terminal 12 and the emitter terminal 14 come into contact with the corresponding electrode 20 while the state is changed to the open state. At this time, the locking piece 22b of the plug 22A is locked to the locking portions 18b formed at both ends in the longitudinal direction of the insulating support 18 of the socket 16, and the plug 22A is integrally held by the socket 16.
[0023]
The above configuration eliminates the need for a terminal bonded to the electrode 4 in the related art, so that the package can be reduced in size.
[0024]
Further, as shown in FIG. 7, a recess 22c is formed in the plug 22A ', and the gate terminal 12 and the emitter terminal 14 are projected into the recess 22c, and the gate terminal 12 and the emitter terminal 14 are associated with the recess 22c. It can also be connected to a lead wire 23 to be
[0025]
If the plug 22A ′ is inserted into the socket 16, the semiconductor element may be electrostatically damaged. However, by preventing the tips of the gate terminal 12 and the emitter terminal 14 from protruding outside the insulating support 26, soldering can be performed. Therefore, electrostatic breakdown can be prevented without requiring any special attention, and the probability of electrostatic breakdown can be remarkably reduced due to extremely convenient handling.
[0026]
Embodiment 3 FIG.
FIG. 8 shows a power semiconductor device according to the third embodiment of the present invention. Each of a plurality of (for example, three) semiconductor elements 6 arranged adjacent to each other is connected to a corresponding socket 16 by an Al wire 8. Connected individually.
[0027]
The plug (plug-type external connection member) 22B includes an insulating support 26, a gate terminal 12 and an emitter terminal 14 which are integrally formed with the insulating support 26 and spaced apart from each other, and extend downward from the lower surface thereof. A plurality of short-circuit releasing pieces 22a and locking pieces 22b extending downward from both ends of the lower surface and locked to the socket 16 are provided. Further, the gate terminal 12 and the emitter terminal 14 are bent inside the insulating support 26, and the lower part of the gate terminal 12 and the emitter terminal 14 is branched into three, and the branch ends are respectively disposed on both sides of the short-circuit releasing piece 22a.
[0028]
After the power semiconductor device is manufactured, when the short-circuit releasing piece 22a of the plug 22B is inserted into the tips of the two electrodes 20 in contact with each other in the corresponding socket 16, the two electrodes 20 are simultaneously short-circuited in all the sockets 16. In addition to the open state, the gate terminal 12 and the emitter terminal 14 are in contact with the corresponding electrodes 20, and the plurality of semiconductor elements 6 are connected in parallel. At this time, the locking piece 22b of the plug 22B is locked to the locking portions 18b formed at both ends in the longitudinal direction of the insulating support 18 of the socket 16, and the plug 22B is held integrally with the socket 16.
[0029]
In the conventional configuration of FIG. 13, a plurality of semiconductor elements 56 are connected to each other by Al wires 58 and individual characteristic inspection is impossible. However, in the above configuration, the plug 22B is used. Independent characteristic inspection can be performed on each of the semiconductor elements 6, and the elements can be replaced even in the course of manufacturing, thereby improving productivity.
[0030]
The plug 22B shown in FIG. 8 is provided with one gate terminal 12 and one emitter terminal 14 as external connection terminals. However, the gate terminal 12 and the emitter terminal corresponding to each of the plurality of sockets 16 are provided. A configuration in which one 14 is provided can be considered.
[0031]
In this case, even if one of the semiconductor elements such as an insulated gate switching semiconductor element used in parallel connection is broken, the broken semiconductor element can be easily detected.
[0032]
Further, the shape shown in FIG. 7 may be adopted in the plug 22B shown in FIG. 8, and the gate terminal 12 and the emitter terminal 14 may be connected to corresponding lead wires in the recess.
[0033]
Embodiment 4 FIG.
FIG. 9 shows a plug assembly (plug-type external connection member) 22C provided in the power semiconductor device according to the fourth embodiment of the present invention. The plug 22B shown in FIG. The plugs 22C 1 and 22C 2 are electrically connected to each other.
[0034]
Further, two rectangular openings 26a are formed in the insulating support 26 of each plug 22C 1 and 22C 2 at a predetermined interval, and resistance is obtained by inserting both ends of the resistor 28 into the opening 26a. The body 28 is connected in series with the gate terminal 12.
[0035]
According to this configuration, an optimum internal gate resistance value can be set by appropriately selecting the resistor 28 inserted into the opening 26a corresponding to various IGBT element characteristics.
[0036]
For example, in the combination of PKG and IIGBT, the current change rate can be changed by arbitrarily setting the resistance value, and the collector-emitter surge voltage generated by the influence of the PKG internal inductance can be suppressed.
[0037]
Also, in the case of multiple semiconductor elements, the rising current becomes unbalanced due to the difference in wiring inductance between the farthest side and the near side from the signal, so the wiring inductance can be adjusted by setting the resistance value arbitrarily. Is possible.
[0038]
In addition to the parallel connection, a single unit as in the second embodiment is also effective.
[0039]
Embodiment 5 FIG.
FIG. 10 shows a plug assembly (plug-type external connection member) 22D provided in the power semiconductor device according to the fifth embodiment of the present invention, and between the plugs 22D 1 and 22D 2 is a shield twist wire 30. Connected. By using the shield twisted wire 30, there is an effect that the surge voltage can be suppressed or avoided from inductive noise.
[0040]
Also, each plug 22D 1, 22D 2 of the surface when coated with a metal plate such as aluminum, can be effectively avoided from induced noise.
[0041]
Embodiment 6 FIG.
FIG. 11 shows the electrode 4 provided in the power semiconductor device according to the sixth embodiment of the present invention. The short-circuiting electrode piece 4a is integrally formed on the electrode 4 joined on the insulating metallized substrate 2. Formed.
[0042]
With this configuration, the insulating support 18 of the socket 16 shown in FIG. 1 is not required, the package can be miniaturized, and an inexpensive power semiconductor device can be provided by reducing the number of components.
[0043]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0044]
According to the first aspect of the present invention, a plurality of sockets for short-circuiting the respective gate drive circuits of the plurality of insulated gate switching semiconductor elements, and insertion of the plurality of sockets to release the short-circuit At the same time, a plug-type external connection member that connects a plurality of insulated gate switching semiconductor elements in parallel is provided, so that the operation of releasing the short circuit and the parallel connection of the semiconductor elements can be performed easily and reliably, and the insulated gate is destroyed. Can be prevented.
[0045]
Further, to form a plurality of short-circuit release piece to an insulating support of plug Shikigaibu connecting member, so positioned serves to branch ends of the two external connection terminals on both sides of each of the plurality of short-circuit releasing piece, simple With this configuration, parallel connection of semiconductor elements and prevention of insulation gate breakdown can be achieved at the same time.
[0046]
Furthermore, according to the second aspect of the present invention, the recess is formed in the insulating support body that supports the external connection terminal of the plug-type external connection member, and the external connection terminal protrudes into the recess. Even when the semiconductor elements are connected in parallel with a plug-type external connection member or after parallel connection, electrostatic breakdown of the semiconductor elements can be prevented, and there is no need to pay special attention to handling, and power that is easy to handle A semiconductor device can be provided.
[0047]
According to the third aspect of the present invention, a plurality of sockets for short-circuiting each gate drive circuit of each of the plurality of insulated gate switching semiconductor elements, and insertion of the plurality of sockets into the plurality of sockets to release the short-circuit individually At the same time, a plug-type external connection member that enables external connection of a plurality of insulated gate switching semiconductor elements is provided, so that the short circuit can be easily and reliably released and the insulated gate can be prevented from being broken. it can. Further, it is possible to easily detect when any of the insulated gate switching elements used in parallel connection is broken.
[0048]
Further, to form a plurality of short-circuit release piece to an insulating support of plug Shikigaibu connecting member, since the pair of external connection terminals of the plurality of pairs on both sides of each of the short-circuit release pieces were arranged, simple With this configuration, it is possible to prevent breakdown of the insulated gate.
[0049]
According to the fourth aspect of the present invention, since the plug-type external connection member is provided with the opening for mounting the resistor connected to each gate drive circuit of the insulated gate type switching semiconductor element, the parallel connection is provided. It is possible to easily balance the gate resistance of the plurality of insulated gate switching elements.
[Brief description of the drawings]
FIG. 1 is a perspective view of a power semiconductor device according to a first embodiment of the present invention.
2 is a front view of the socket and the plug showing the operation when the plug is inserted into the socket having two electrodes and the short circuit between the electrodes is released in the power semiconductor device of FIG. 1. FIG.
FIG. 3 is a front view of the socket and the plug showing a state in which the plug is set in the socket and the short circuit of the electrode is released.
FIG. 4 is a perspective view of a power semiconductor device according to a second embodiment of the present invention.
5 is a perspective view of the socket and the plug showing a state in which the plug is set in the socket having two electrodes and the short circuit between the electrodes is released in the power semiconductor device of FIG. 4;
6 is a front view of the socket and plug of FIG. 5. FIG.
FIG. 7 is a partial cross-sectional front view showing a modification of the plug of FIG.
FIG. 8 is a perspective view of a power semiconductor device according to a third embodiment of the present invention.
FIG. 9 is a perspective view of a plug assembly provided in a power semiconductor device according to a fourth embodiment of the present invention.
FIG. 10 is a perspective view of a plug assembly provided in a power semiconductor device according to a fifth embodiment of the present invention.
FIG. 11 is a perspective view of electrodes provided in a power semiconductor device according to a sixth embodiment of the present invention.
FIG. 12 is a perspective view of a conventional power semiconductor device.
FIG. 13 is a perspective view of another conventional power semiconductor device.
[Explanation of symbols]
2 Insulating substrate, 4 Electrode, 6 Semiconductor element, 8 Wire,
10 collector terminal, 12 gate terminal, 14 emitter terminal,
16 socket, 18 insulating support, 18a recess, 18b locking part,
20 electrode, 22 plug, 22a short-circuit releasing piece, 22b locking piece,
22c recess, 23 lead wire,
22A, 22A ', 22B, 22C, 22D Plug type external connection member,
24 cases, 26 insulating supports, 28 resistors,
30 Shielded twisted wire.

Claims (4)

ケース内に収納された電力用絶縁基板の表主面上に形成された主回路パターン上に複数の絶縁ゲート型スイッチング半導体素子を実装して並列に接続する電力用半導体装置において、
前記複数の絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路をそれぞれ短絡する複数のソケットと、該複数のソケットに挿入され短絡を解除すると同時に、前記複数の絶縁ゲート型スイッチング半導体素子を並列に接続するプラグ式外部接続部材とを備え、前記プラグ式外部接続部材を、絶縁性支持体と、該絶縁性支持体と一体成形された二つの外部接続用端子とにより形成し、前記絶縁性支持体に複数の短絡解除片を形成するとともに、該複数の短絡解除片の各々の両側に前記二つの外部接続用端子の分岐端をそれぞれ配置したことを特徴とする電力用半導体装置。
In a power semiconductor device in which a plurality of insulated gate switching semiconductor elements are mounted and connected in parallel on a main circuit pattern formed on a front main surface of a power insulating substrate housed in a case,
A plurality of sockets for short-circuiting each gate drive circuit of each of the plurality of insulated gate switching semiconductor elements, and simultaneously inserting the plurality of insulated gate switching semiconductor elements into the plurality of sockets and releasing the short circuit at the same time A plug-type external connection member, and the plug-type external connection member is formed of an insulating support and two external connection terminals formed integrally with the insulating support, and the insulating support. And a plurality of short-circuit releasing pieces are formed on both sides of each of the plurality of short-circuit releasing pieces .
前記プラグ式外部接続部材の外部接続用端子を支持する絶縁性支持体内に凹部を形成し、前記外部接続用端子を前記凹部内に突出させたことを特徴とする請求項1に記載の電力用半導体装置。  2. The power use according to claim 1, wherein a recess is formed in an insulating support body that supports an external connection terminal of the plug-type external connection member, and the external connection terminal protrudes into the recess. Semiconductor device. ケース内に収納された電力用絶縁基板の表主面上に形成された主回路パターン上に複数の絶縁ゲート型スイッチング半導体素子を実装して並列に接続する電力用半導体装置において、
前記複数の絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路をそれぞれ短絡する複数のソケットと、該複数のソケットに挿入され短絡を個々に解除すると同時に、前記複数の絶縁ゲート型スイッチング半導体素子を個々に外部接続可能とするプラグ式外部接続部材とを備え、前記プラグ式外部接続部材を、絶縁性支持体と、該絶縁性支持体と一体成形された複数対の外部接続用端子とにより形成し、前記絶縁性支持体に複数の短絡解除片を形成するとともに、該複数の短絡解除片の各々の両側に前記複数対の外部接続用端子のうちの一対をそれぞれ配置したことを特徴とする電力用半導体装置。
In a power semiconductor device in which a plurality of insulated gate switching semiconductor elements are mounted and connected in parallel on a main circuit pattern formed on a front main surface of a power insulating substrate housed in a case,
A plurality of sockets for short-circuiting each gate drive circuit of each of the plurality of insulated gate switching semiconductor elements, and each of the plurality of insulated gate switching semiconductor elements inserted into the plurality of sockets to simultaneously release the short circuit A plug-type external connection member that can be externally connected, and the plug-type external connection member is formed of an insulating support and a plurality of pairs of external connection terminals integrally formed with the insulating support. A plurality of short-circuit releasing pieces are formed on the insulating support, and a pair of the plurality of external connection terminals is disposed on both sides of each of the plurality of short-circuit releasing pieces. Semiconductor device.
前記プラグ式外部接続部材に、前記絶縁ゲート型スイッチング半導体素子の各々のゲート駆動回路に接続される抵抗体を装着する開口部を設けたことを特徴とする請求項1乃至3のいずれか1項に記載の電力用半導体装置。The plug Shikigaibu connecting member, any one of claims 1 to 3, characterized in that an opening is provided for mounting a resistor connected to the gate drive circuit of each of said insulated gate switching semiconductor element The power semiconductor device according to the above.
JP2002134392A 2002-05-09 2002-05-09 Semiconductor device Expired - Fee Related JP3911192B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002134392A JP3911192B2 (en) 2002-05-09 2002-05-09 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002134392A JP3911192B2 (en) 2002-05-09 2002-05-09 Semiconductor device

Publications (2)

Publication Number Publication Date
JP2003332525A JP2003332525A (en) 2003-11-21
JP3911192B2 true JP3911192B2 (en) 2007-05-09

Family

ID=29697054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002134392A Expired - Fee Related JP3911192B2 (en) 2002-05-09 2002-05-09 Semiconductor device

Country Status (1)

Country Link
JP (1) JP3911192B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10128625B2 (en) 2014-11-18 2018-11-13 General Electric Company Bus bar and power electronic device with current shaping terminal connector and method of making a terminal connector

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5159749B2 (en) * 2009-11-20 2013-03-13 三菱電機株式会社 Semiconductor switching device
JP6255771B2 (en) * 2013-07-26 2018-01-10 住友電気工業株式会社 Semiconductor module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10128625B2 (en) 2014-11-18 2018-11-13 General Electric Company Bus bar and power electronic device with current shaping terminal connector and method of making a terminal connector

Also Published As

Publication number Publication date
JP2003332525A (en) 2003-11-21

Similar Documents

Publication Publication Date Title
US7130195B2 (en) Electronic apparatus
JP2004319991A (en) Power semiconductor module
JP2004055354A (en) Card edge connector connection jig and card edge connector connection structure
TWI420988B (en) Apparatus and method for vertically-structured passive components
JP3911192B2 (en) Semiconductor device
JP2001203490A (en) Filter device for at least one elastic wiring connected externally to case
JP3876563B2 (en) Electrical junction box
JPS63213278A (en) Socket
JP4601874B2 (en) Semiconductor device
JPH0371688A (en) Printed wiring board equipped with at least two different electronic component groups
RU2302686C2 (en) Semiconductor power module
JP2001035632A (en) Printed board device and its manufacture
US6422901B1 (en) Surface mount device and use thereof
JP2670505B2 (en) Substrate for mounting electronic components
CN108023014B (en) Electronic component
JP2005252358A (en) Block emi filter
JPH01268160A (en) Power module
KR200352764Y1 (en) Universal Print circuit board
JPH0834138B2 (en) Surge absorber
JPH087601Y2 (en) High voltage resistor pack
JPS62204506A (en) Power supply transformer
JPH11111353A (en) Terminal block
JPH024472Y2 (en)
KR100665331B1 (en) Power inlet socket for preventing the shock from thunderstroke
JPS62290101A (en) Radial type electronic parts

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040608

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060310

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060322

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060517

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070123

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070126

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100202

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110202

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120202

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130202

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130202

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140202

Year of fee payment: 7

LAPS Cancellation because of no payment of annual fees