JP6485397B2 - 電子装置及びその製造方法 - Google Patents
電子装置及びその製造方法 Download PDFInfo
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- JP6485397B2 JP6485397B2 JP2016075388A JP2016075388A JP6485397B2 JP 6485397 B2 JP6485397 B2 JP 6485397B2 JP 2016075388 A JP2016075388 A JP 2016075388A JP 2016075388 A JP2016075388 A JP 2016075388A JP 6485397 B2 JP6485397 B2 JP 6485397B2
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- oxide film
- sealing resin
- resin body
- film
- metal thin
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Description
先ず、図1に基づき、半導体装置が適用される電力変換装置の一例について説明する。
本実施形態は、先行実施形態を参照できる。このため、先行実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は省略する。
本実施形態は、先行実施形態を参照できる。このため、先行実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は省略する。
本実施形態は、先行実施形態を参照できる。このため、先行実施形態に示した半導体装置10及びその製造方法と共通する部分についての説明は省略する。
Claims (12)
- 電子部品(12)と、
前記電子部品を封止する封止樹脂体(11)と、
前記封止樹脂体の内部に配置されたインナーリード(250)と、前記インナーリードに連なり、前記封止樹脂体の外部に突出するアウターリード(251)と、を有し、前記封止樹脂体の内外にわたって延設されたリードフレーム(25)と、
前記封止樹脂体の内部において、前記電子部品と前記インナーリードとを電気的に接続するボンディングワイヤ(26)と、
を備え、
前記インナーリードが、金属材料を用いて形成された基材(252)と、前記基材の表面のうち、前記インナーリードにおける前記ボンディングワイヤが接続されるボンディング面(250a)側の表面に少なくとも形成された皮膜(253)と、を有し、
前記皮膜が、前記基材の表面に形成され、一部分に前記ボンディングワイヤが接続された金属薄膜(254)と、前記金属薄膜の主成分の金属と同じ金属の酸化物よりなり、前記金属薄膜上であって前記ボンディングワイヤの接続領域(250b)を除く部分の少なくとも一部に形成された酸化膜(255)と、を有し、
前記酸化膜が、表面が連続して凹凸をなす凹凸酸化膜(256)を含んでおり、
前記ボンディング面において、前記アウターリード側の端部とは反対の端部を先端部(250c)とすると、前記凹凸酸化膜が、前記接続領域よりも前記先端部側の領域である先端領域(250e)の少なくとも一部に形成されている電子装置。 - 前記凹凸酸化膜は、前記ボンディング面において前記先端部から形成されている請求項1に記載の電子装置。
- 前記アウターリード側の端部を後端部(250d)とすると、前記凹凸酸化膜は、前記ボンディング面において、前記接続領域よりも前記後端部側の領域である後端領域(250f)の少なくとも一部に形成されている請求項1又は請求項2に記載の電子装置。
- 前記リードフレームの延設方向に直交する幅方向において、前記凹凸酸化膜は、前記接続領域に並んで形成されており、
前記先端領域に形成された凹凸酸化膜と、前記接続領域に並んで形成された凹凸酸化膜と、前記後端領域に形成された凹凸酸化膜とが、一体的に連なっている請求項3に記載の電子装置。 - 前記凹凸酸化膜は、前記接続領域を取り囲んでいる請求項4に記載の電子装置。
- 前記金属薄膜は、前記凹凸酸化膜が形成された部分の表面に複数の凹部(254a)を有する請求項1〜5いずれか1項に記載の電子装置。
- 前記金属薄膜において、前記凹凸酸化膜が形成された部分の平均膜厚が、前記凹凸酸化膜が形成されていない部分の平均膜厚よりも薄くなっている請求項1〜6いずれか1項に記載の電子装置。
- 前記酸化膜は、前記凹凸酸化膜と前記接続領域との間で前記凹凸酸化膜に隣接して形成され、自然酸化膜よりも膜厚が厚く、前記凹凸酸化膜の平均膜厚よりも薄い中間酸化膜(257)を含む請求項1〜7いずれか1項に記載の電子装置。
- 前記金属薄膜は、Niを主成分とする請求項1〜8いずれか1項に記載の電子装置。
- 前記金属薄膜は、めっき膜である請求項9に記載の電子装置。
- 前記金属薄膜は、無電解めっき膜である請求項10に記載の電子装置。
- 電子部品(12)と、
前記電子部品を封止する封止樹脂体(11)と、
前記封止樹脂体の内部に配置されたインナーリード(250)と、前記インナーリードに連なり、前記封止樹脂体の外部に突出するアウターリード(251)と、を有し、前記封止樹脂体の内外にわたって延設されたリードフレーム(25)と、
前記封止樹脂体の内部において、前記電子部品と前記インナーリードとを電気的に接続するボンディングワイヤ(26)と、
を備え、
前記インナーリードが、金属材料を用いて形成された基材(252)と、前記基材の表面のうち、前記インナーリードにおける前記ボンディングワイヤが接続されるボンディング面(250a)側の表面に少なくとも形成された皮膜(253)と、を有し、
前記皮膜が、前記基材の表面に形成され、一部分に前記ボンディングワイヤが接続された金属薄膜(254)と、前記金属薄膜の主成分の金属と同じ金属の酸化物よりなり、前記金属薄膜上であって前記ボンディングワイヤの接続領域(250b)を除く部分の少なくとも一部に形成された酸化膜(255)と、を有し、
前記酸化膜が、表面が連続して凹凸をなす凹凸酸化膜(256)を含む電子装置の製造方法であって、
前記金属薄膜が形成された前記基材を準備し、
前記ボンディング面において、前記アウターリード側の端部とは反対の端部を先端部(250c)とすると、前記金属薄膜の表面のうち、前記接続領域よりも前記先端部側の領域である先端領域(250e)の少なくとも一部にパルス発振のレーザ光を照射して、前記凹凸酸化膜を形成し、
前記凹凸酸化膜の形成後、前記ボンディングワイヤを介して、前記電子部品と前記インナーリードとを接続し、
前記ボンディングワイヤ、前記電子部品、及び前記インナーリードを覆うように、前記封止樹脂体を成形する電子装置の製造方法。
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| PCT/JP2017/009857 WO2017175542A1 (ja) | 2016-04-04 | 2017-03-13 | 電子装置及びその製造方法 |
| US15/772,116 US10236230B2 (en) | 2016-04-04 | 2017-03-13 | Electronic device and method for manufacturing the same |
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| JP2019083295A (ja) * | 2017-10-31 | 2019-05-30 | トヨタ自動車株式会社 | 半導体装置 |
| JP7154529B2 (ja) * | 2017-12-13 | 2022-10-18 | 株式会社デンソー | 金属部材および当該金属部材を用いた半導体素子、樹脂金属複合体、半導体装置、異種金属複合体並びに当該金属部材の製造方法 |
| JP6939679B2 (ja) * | 2018-03-29 | 2021-09-22 | 株式会社デンソー | 半導体装置 |
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| WO2025115059A1 (ja) * | 2023-11-27 | 2025-06-05 | 三菱電機株式会社 | 回路基板、半導体装置、回路基板の製造方法および半導体装置の製造方法 |
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| JP2013071312A (ja) | 2011-09-28 | 2013-04-22 | Hitachi Automotive Systems Ltd | 金属部材と成形樹脂部材との複合成形体および金属部材の表面加工方法 |
| WO2015151273A1 (ja) * | 2014-04-04 | 2015-10-08 | 三菱電機株式会社 | 半導体装置 |
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2016
- 2016-04-04 JP JP2016075388A patent/JP6485397B2/ja active Active
-
2017
- 2017-03-13 WO PCT/JP2017/009857 patent/WO2017175542A1/ja not_active Ceased
- 2017-03-13 CN CN201780009036.8A patent/CN108604579B/zh active Active
- 2017-03-13 US US15/772,116 patent/US10236230B2/en active Active
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|---|---|
| US20180323125A1 (en) | 2018-11-08 |
| WO2017175542A1 (ja) | 2017-10-12 |
| US10236230B2 (en) | 2019-03-19 |
| JP2017188534A (ja) | 2017-10-12 |
| CN108604579A (zh) | 2018-09-28 |
| CN108604579B (zh) | 2022-03-18 |
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