JP2014229763A - 電子装置、および電子装置の製造方法 - Google Patents
電子装置、および電子装置の製造方法 Download PDFInfo
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Abstract
Description
図1〜図3に本発明に係る電子装置が適用されている半導体装置1の第1実施形態を示す。
ターミナル部32は、ターミナル部22に対して平行に配置されている。ターミナル部33は、アイランド本体31に対してターミナル部32の反対側に配置されている。ターミナル部33は、ターミナル部32に対して逆方向にアイランド本体31から突起するように形成されている。
(1)図8に示すように、凹部34の開口面積が高さ方向下側から高さ方向上側に向かうほど大きくなるように凹部34を構成する4つの側壁34bが高さ方向に対して斜めになっている。これにより、クリップ80の接合部83をアイランド30のうち凹部内34に配置する際に、接合部83が凹部形成部34aから離れているか否かを作業者が容易に確認することができる。
(2)図9に示すように、凹部34を構成する4つの側壁34bがそれぞれ階段状に形成されている。高さ方向上側の凹部34の開口面積が高さ方向下側の凹部34の開口面積に比べて、大きくなっている。このため、上記(1)と同様に、接合部83が凹部形成部34aから離れているか否かを作業者が容易に確認することができる。
(3)図10に示すように、アイランド30の凹部34を構成する4つの側壁のうちブリッジ部85側の側壁34c以外の3つの側壁34bがそれぞれ階段状に形成されている。このため、上記(1)と同様、接合部83が凹部形成部34aから離れている状態(図11、図12参照)を作業者が容易に確認することができる。
上記第1実施形態では、クリップ80の接合部83とアイランド30とを接合した例について説明したが、これに代えて、本第3の実施形態では、図14、図15に示すように、クリップ80の接合部82とアイランド30とを接合してもよい。この場合、クリップ80の接合部83を半導体スイッチ素子70の入力端子71に接続することになる。図15は本実施形態における半導体装置1において封止樹脂部材90の外形線の内側を上側から視た上面図である。図14は図15中のXIV−XIV断面面であって、図示の明確化のために、断面を示すハッチングを省略している。
上記第1実施形態では、半導体装置1において半導体スイッチ素子60、70の間をクリップ80によって接続した例について説明したが、これに代えて、半導体装置1において、4つの半導体スイッチ素子からなるHブリッジ210(図16参照)を2つのクリップ80によって構成する例について説明する。
(1)図19に示すように、ハーフブリッジ200aにおいて、クリップ80に代えてクリップ80Aが用いられている。クリップ80Aでは、ブリッジ部84が幅方向に傾斜する方向に延びるように形成されている。ハーフブリッジ200bにおいて、クリップ80に代えてクリップ80Bが用いられている。クリップ80Bでは、ブリッジ部84が幅方向に傾斜する方向に延びるように形成されている。
(2)図20に示すように、ハーフブリッジ200aにおいて、クリップ80に代えてクリップ80Cが用いられている。クリップ80Cでは、ブリッジ部84、85が幅方向に傾斜する方向に延びるように形成されている。ハーフブリッジ200bにおいて、クリップ80に代えてクリップ80Dが用いられている。クリップ80Bでは、ブリッジ部84、85が幅方向に傾斜する方向に延びるように形成されている。
本第4実施形態では、半導体装置1において、インバータ回路300A(図21参照)を3つのクリップを用いて構成する例について説明する。
本第5実施形態では、半導体装置1において、1つのハーフブリッジおよびインバータ回路を4つのクリップを用いて構成する例について説明する。
上記第1〜第5実施形態では、半導体スイッチ素子60の出力端子62、半導体スイッチ素子70の入力端子71、およびアイランド30といった3つの端子をクリップ80(80A、80B、80C)で接続した例について説明したが、これに代えて、4つ以上の端子をクリップ(80、80A、80B、80C)で接続してもよい。この場合、クリップには、4つ以上の接合部が設けられていることになる。
30 アイランド(第1〜第3の端子)
34 凹部
40、50 ターミナル
60、70 半導体スイッチ素子
61 入力端子(第1〜第3の端子)
72 出力端子(第1〜第3の端子)
63、73 制御端子
80 クリップ
81、82、83 接合部
84、85 ブリッジ部(連結部)
90 封止樹脂部材
Claims (13)
- 第1、第2、第3の端子(62、71、30)と、
前記第1、第2、第3の端子に対応するように設けられている第1、第2、第3の接合部(81、82、83)と、前記第1、第2、第3の接合部のそれぞれの間を連結する連結部(84、85)とを有し、前記第1、第2、第3の接合部がそれぞれ前記第1、第2、第3の端子のうち対応する端子に接合されるクリップ(80)と、を備え、
前記第1、第2、第3の端子のうち少なくとも1つの端子には、所定方向の一方側に凹んで導電性接合材料を貯留する凹部(34)が設けられており、
前記第1、第2、第3の接合部のうち前記1つの端子に対応する接合部が前記凹部内の前記導電性接合材料を介して前記1つの端子に接合されることにより、
前記第1、第2、第3の端子における前記所定方向の位置バラツキを前記導電性接合材料の変形によって吸収するようになっていることを特徴とする電子装置。 - 前記1つの端子のうち前記凹部を形成する凹部形成部(34a)から前記1つの端子に対応する接合部が離れた状態で、前記1つの端子に対応する接合部が前記導電性接合材料を介して前記1つの端子に接合されていることを特徴とする請求項1に記載の電子装置。
- 前記連結部は、前記第1、第2の接合部の間を連結する第1の連結部(84)と、前記第2、第3の接合部の間を連結する第2の連結部(85)とを備えていること特徴とする請求項1または2に記載の電子装置。
- 前記1つの端子に対応する1つの接合部は、前記第1、第2、第3の接合部のうち当該1つの接合部以外の2つの接合部よりも前記所定方向の一方側に位置することを特徴とする請求項1ないし3のいずれか1つに記載の電子装置。
- 前記第1の接合部は、前記第2の接合部に対して前記所定方向に対する直交方向の一方側に配置されており、
前記第3の接合部は、前記第2の接合部に対して前記直交方向の他方側に配置されていることを特徴とする請求項4に記載の電子装置。 - 前記第1、第3の接合部のうちいずれか一方の接合部は、前記凹部を有する前記1つの端子に対応する接合部であり、
前記クリップの重心は、前記第1、第3の接合部のうち前記一方の接合部以外の他方の接合部側に位置することを特徴とする請求項5に記載の電子装置。 - 前記凹部形成部は、その側壁が階段状に形成されていることを特徴とする請求項1ないし6のいずれか1つに記載の電子装置。
- 前記凹部形成部は、前記所定方向に対する直交方向の開口面積が前記所定方向の一方側から前記所定方向の他方側に向かうほど大きくなるように形成されていることを特徴とする請求項1ないし7のいずれか1つに記載の電子装置。
- 入力端子(61、71)、出力端子(62、72)、および前記入力端子および前記出力端子の間の抵抗値を制御するための制御端子(63、73)をそれぞれ備える第1、第2の半導体スイッチ素子(60、70)を備え、
前記第1の半導体スイッチ素子の出力端子が前記第1、第2、第3の端子のうちいずれか1つの端子を構成し、
前記第2の半導体スイッチ素子の入力端子が前記第1、第2、第3の端子のうち当該1つの端子以外の他の端子を構成することを特徴とする請求項1ないし8のいずれか1つに記載の電子装置。 - 前記第3の端子が電動モータにそれぞれ接続されていることを特徴とする請求項9に記載の電子装置。
- 前記第1、第2、第3の端子および前記クリップを封止樹脂によって封止する樹脂封止部材(90)を備えることを特徴とする請求項9または10に記載の電子装置。
- 第1、第2、第3の接合部(81、82、83)と、前記第1、第2、第3の接合部のそれぞれの間を連結する連結部(84、85)とを有するクリップ(80)の前記第1、第2、第3の接合部と第1、第2、第3の端子(60、70、30)のうち対応する端子とをそれぞれ接合する接合工程(S120、S130)を備え、
前記接合工程は、
前記第1、第2、第3の端子のうち少なくとも1つに端子にて所定方向の一方側に凹むように設けられた凹部(34)に導電性接合材料を貯留する第1の工程(S120)と、
前記1つの端子の凹部内に前記第1、第2、第3の接合部のうち前記1つの端子に対応する接合部を配置して、前記第1、第2、第3の端子における前記所定方向の位置バラツキを前記導電性接合材料の変形によって吸収する第2の工程(S130)と、を備えることを特徴とする電子装置の製造方法。 - 前記第3の工程では、前記1つの端子のうち前記凹部を形成する凹部形成部(34a)から前記1つの端子に対応する接合部を離した状態で、前記第1、第2、第3の端子における前記所定方向の位置バラツキを吸収することを特徴とする請求項12に記載の電子装置の製造方法。
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JP2018160604A (ja) * | 2017-03-23 | 2018-10-11 | 株式会社デンソー | 半導体装置 |
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