JP2005353976A - 電子装置 - Google Patents
電子装置 Download PDFInfo
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- JP2005353976A JP2005353976A JP2004175419A JP2004175419A JP2005353976A JP 2005353976 A JP2005353976 A JP 2005353976A JP 2004175419 A JP2004175419 A JP 2004175419A JP 2004175419 A JP2004175419 A JP 2004175419A JP 2005353976 A JP2005353976 A JP 2005353976A
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Abstract
【解決手段】 電子装置100において、ボンディングワイヤ31、32は、AuからなるAuワイヤ31とこのAuワイヤ31よりも太くAlからなるAlワイヤ32とから構成され、複数の接続端子41、42は、Auワイヤ31と接続される第1の接続端子41と、Alワイヤ32と接続される第2の接続端子42とから構成されている。また、第1の接続端子41は、表面に無電解Niメッキが施されたものであって且つAuワイヤ31との接続部において無電解Niメッキの上に最表面層としてAgメッキが施されたものであり、第2の接続端子42は、表面に無電解Niメッキが施されたものである。
【選択図】 図1
Description
限定するものではないが、本実施形態の電子装置100は、自動車のパワーウィンドウにおけるモータ(後述の図5参照)を駆動制御するためのHIC(混成集積回路)に適用されるものとして説明する。
図1に示されるように、本実施形態の電子装置100は、大きくは、第1の回路部10と、第2の回路部20と、これら第1の回路部10および第2の回路部20とボンディングワイヤ31、32を介して接続される複数の接続端子41、42とを備えて構成されている。
本実施形態の電子装置100の回路構成等について、図5および図6を参照して述べておく。図5は、本電子装置100の回路構成の概略図であり、図6は、図5中のモータの作動状態における各パワーMOS素子21〜24のゲート入力のON・OFF状態を示す図である。
ところで、本実施形態によれば、第1の回路部10と、第2の回路部20と、第1の回路部10および第2の回路部20とボンディングワイヤ31、32を介して接続される複数の接続端子41、42とを備え、第2の回路部20は第1の回路部10よりも大きい電流が流れるものである電子装置において、次のような点を特徴とする電子装置100が提供される。
図7は、本発明の第2実施形態に係る電子装置110の概略平面構成を示す図である。以下、上記第1実施形態との相違点を中心に述べることにする。
上記各実施形態は、上記図1、図7などに示されるように、複数の素子11、12、21〜24を有する電子装置への適用例を説明した。
なお、上記実施形態では、第1の回路部は制御部、第2の回路部は制御部としての第1の回路部によって制御される駆動部としていたが、第2の回路部は第1の回路部よりも大きい電流が流れるものであればよい。
11…第1の電子素子および制御素子としてのマイコン、
12…第1の電子素子および制御素子としての制御IC、
20…第2の回路部、
21〜24…第2の電子素子および駆動素子としてのパワーMOS素子、
31…ボンディングワイヤとしてのAuワイヤ、
32…ボンディングワイヤとしてのAlワイヤ、
41…第1の接続端子、42…第2の接続端子。
Claims (9)
- ボンディングワイヤ(31、32)と接続される複数の接続端子(41、42)が備えられている電子装置において、
前記ボンディングワイヤ(31、32)は、AuからなるAuワイヤ(31)とこのAuワイヤ(31)よりも太くAlからなるAlワイヤ(32)とから構成されており、
前記複数の接続端子(41、42)は、前記Auワイヤ(31)と接続される第1の接続端子(41)と、前記Alワイヤ(32)と接続される第2の接続端子(42)とから構成されており、
前記第1の接続端子(41)は、表面に無電解Niメッキが施されたものであって且つ前記Auワイヤ(31)との接続部では前記無電解Niメッキの上に最表面層としてAgメッキが施されたものであり、
前記第2の接続端子(42)は、表面に無電解Niメッキが施されたものであることを特徴とする電子装置。 - 第1の回路部(10)と、第2の回路部(20)と、前記第1の回路部(10)および前記第2の回路部(20)とボンディングワイヤ(31、32)を介して接続される複数の接続端子(41、42)とを備え、
前記第2の回路部(20)は前記第1の回路部(10)よりも大きい電流が流れるものである電子装置において、
前記複数の接続端子(41、42)のうち前記第1の回路部(10)と接続される第1の接続端子(41)に対しては、前記ボンディングワイヤとしてAuからなるAuワイヤ(31)が用いられ、前記第2の回路部(20)と接続される第2の接続端子(42)に対しては、前記ボンディングワイヤとして前記Auワイヤ(31)よりも太くAlからなるAlワイヤ(32)が用いられており、
前記第1の接続端子(41)は、表面に無電解Niメッキが施されたものであって且つ前記Auワイヤ(31)との接続部では前記無電解Niメッキの上に最表面層としてAgメッキが施されたものであり、
前記第2の接続端子(42)は、表面に無電解Niメッキが施されたものであることを特徴とする電子装置。 - 前記第1の回路部(10)は、第1の電子素子(11、12)を備え、前記第2の回路部(20)は、前記第1の電子素子(11、12)よりも大きい電流が流れ且つ大きい発熱を行う第2の電子素子(21、22、23、24)を備えるものであることを特徴とする請求項2に記載の電子装置。
- 前記第1の電子素子は制御素子(11、12)であり、前記第2の電子素子は、前記制御素子(11、12)によって制御される駆動素子(21〜24)であることを特徴とする請求項3に記載の電子装置。
- 前記第1の回路部(10)は第1の配線基板(51)を備えて構成されたものであり、前記第2の回路部(20)は、前記第1の配線基板(51)とは分離して配置された第2の配線基板(52)を備えて構成されたものであり、
前記第1の電子素子(11、12)は、前記第1の配線基板(51)に実装され、前記第2の電子素子(21〜24)は、前記第2の配線基板(52)に実装されていることを特徴とする請求項3または4に記載の電子装置。 - 前記第1の配線基板(51)および前記第2の配線基板(52)は、それぞれ、アイランド部(40)の上に搭載されていることを特徴とする請求項5に記載の電子装置。
- 前記第1の配線基板(51)は多層基板であり、前記第2の配線基板(52)は単層基板であることを特徴とする請求項5または6に記載の電子装置。
- 前記第1の回路部(10)および前記第2の駆動部(20)は、共通の配線基板(50)を有するものであり、
前記第1の電子素子(11、12)および前記第2の電子素子(21〜24)は、前記配線基板(50)に実装されていることを特徴とする請求項3または4に記載の電子装置。 - 前記Alワイヤ(32)の線径は250μm以上であり、前記Auワイヤ(31)の線径は30μm以下であ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。
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US11/105,548 US7843700B2 (en) | 2004-04-14 | 2005-04-14 | Semiconductor device |
US12/923,968 US8179688B2 (en) | 2004-04-14 | 2010-10-19 | Semiconductor device |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2011039795A1 (ja) * | 2009-09-29 | 2011-04-07 | パナソニック株式会社 | 半導体装置とその製造方法 |
WO2012071299A3 (en) * | 2010-11-23 | 2012-10-04 | Microchip Technology Incorporated | Vertical field effect transistor |
JP2014093431A (ja) * | 2012-11-05 | 2014-05-19 | Renesas Electronics Corp | 半導体装置およびその製造方法 |
JP2017069584A (ja) * | 2017-01-10 | 2017-04-06 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2011039795A1 (ja) * | 2009-09-29 | 2011-04-07 | パナソニック株式会社 | 半導体装置とその製造方法 |
JPWO2011039795A1 (ja) * | 2009-09-29 | 2013-02-21 | パナソニック株式会社 | 半導体装置とその製造方法 |
US8581378B2 (en) | 2009-09-29 | 2013-11-12 | Panasonic Corporation | Semiconductor device and method of manufacturing the same |
WO2012071299A3 (en) * | 2010-11-23 | 2012-10-04 | Microchip Technology Incorporated | Vertical field effect transistor |
JP2014093431A (ja) * | 2012-11-05 | 2014-05-19 | Renesas Electronics Corp | 半導体装置およびその製造方法 |
JP2017069584A (ja) * | 2017-01-10 | 2017-04-06 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
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