JP5090088B2 - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
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- JP5090088B2 JP5090088B2 JP2007176829A JP2007176829A JP5090088B2 JP 5090088 B2 JP5090088 B2 JP 5090088B2 JP 2007176829 A JP2007176829 A JP 2007176829A JP 2007176829 A JP2007176829 A JP 2007176829A JP 5090088 B2 JP5090088 B2 JP 5090088B2
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Description
なお、本発明は、以下の態様を含む。
(付記1)
表面に第1接続電極が形成された半導体素子と、
第1接続孔が形成された第1接続パッドを有する第1外部リードを含み、
前記第1接続孔が前記第1接続電極の上に重ねられており、前記第1接続孔近傍で前記第1接続パッドの溶融部が前記第1接続電極に溶接されている半導体装置。
(付記2)
前記第1接続電極の材料は、前記第1接続パッドの一部が溶融し始めたときに溶融しない材料を有する付記1に記載の半導体装置。
(付記3)
前記第1接続電極は、下地層と、その上に形成された溶融防止層を有する付記2に記載の半導体装置。
(付記4)
前記第1接続パッドは、母材と、その表面に形成された溶融促進層を有する付記1乃至3のいずれか一に記載の半導体装置。
(付記5)
前記第1接続電極がバンプ電極である付記1に記載の半導体装置。
(付記6)
前記バンプ電極の一部と前記第1接続パッドの一部が溶融して溶融部を形成する付記5に記載の半導体装置。
(付記7)
前記バンプ電極は、母材と、その表面に形成された溶融防止層を有する付記5に記載の半導体装置。
(付記8)
前記第1外部リードは、電気的に接続された第1接続片をさらに有し、前記第1接続パッドは前記第1接続片に形成されている付記1乃至7のいずれか一に記載の半導体装置。
(付記9)
前記第1接続片には、さらに第2接続孔が形成されており、前記第2接続孔が前記第1外部リードの上に重ねられ、前記第2接続孔近傍で前記第1接続片が前記第1外部リードに溶接されている付記8に記載の半導体装置。
(付記10)
前記第1接続片と前記第1外部リードとは導電性ペーストを介して電気的に接続されている付記8に記載の半導体装置。
(付記11)
第3接続孔が形成された第2接続パッドを有する第2外部リードと、
第3外部リードをさらに含み、
前記半導体素子は、表面側にソース電極となる前記第1接続電極とゲート電極となる第2接続電極が形成され、裏面側にドレイン電極が形成された縦型MOSFETを含み、
前記第3外部リードは前記ドレイン電極に電気的に接続され、
前記第3接続孔が第2接続電極の上に重ねられ、前記第3接続孔近傍で前記第2接続パッドの溶融部が前記第2接続電極に溶接されている付記1乃至10のいずれか一に記載の半導体装置。
(付記12)
前記第2接続電極がバンプ電極である付記11に記載の半導体装置。
(付記13)
第1接続電極が表面に形成された半導体素子を準備し、
第1接続孔が形成された第1接続パッドを有する第1外部リードを準備し、
前記第1接続孔を前記第1接続電極の上に重ね、
前記第1接続孔を含む領域にレーザ光を照射し、前記第1接続孔近傍で前記第1接続パッドを前記第1接続電極に溶接する半導体装置の製造方法。
(付記14)
前記レーザ光はYAGレーザを光源とする付記13に記載の半導体装置の製造方法。
(付記15)
前記第1接続パッドの一部が溶融し始めたときに、前記第1接続電極が溶融しない材料を用いる付記13または14に記載の半導体装置の製造方法。
(付記16)
前記第1接続電極がバンプ電極である付記13または14に記載の半導体装置の製造方法。
(付記17)
一端に前記第1接続パッドが形成され、他端に第2接続孔を有する第1接続片を準備し、
前記第2接続孔を前記第1外部リードの上に重ね、
前記第2接続孔を含む領域にレーザ光を照射し、前記第2接続孔近傍で前記第1接続片を前記第1リードに溶接する工程をさらに含む付記13乃至16のいずれか一に記載の半導体装置の製造方法。
(付記18)
さらに、第3接続孔が形成された第2接続パッドを有する第2外部リードと、第3外部リードを準備し、
前記半導体素子は、表面側にソース電極となる前記第1接続電極とゲート電極となる第2接続電極が形成され、裏面側にドレイン電極が形成された縦型MOSFETを含み、
前記第3外部リードと前記ドレイン電極とを電気的に接続し、
前記第3接続孔を前記第2接続電極の上に重ね、
前記第3接続孔を含む領域にレーザ光を照射し、前記第3接続孔近傍で前記第2接続パッドを前記第2接続電極に溶接する工程をさらに含む付記13乃至17のいずれか1項に記載の半導体装置の製造方法。
(付記19)
前記第2接続電極がバンプ電極である付記18に記載の半導体装置の製造方法。
3 半導体素子
3a ソース電極
3b ゲート電極
4a ソースパッド
4b ゲートパッド
5a 第1接続孔
5b 第3接続孔
7a、14a ソースリード
7b、14b ゲートリード
9 溶融部
10 レーザ光
11a ソースクリップ
11b ゲートクリップ
13a、13b 第2接続孔
30 バンプ
Claims (15)
- 表面に第1接続電極が形成された半導体素子と、
第1接続孔が形成された第1接続パッドを有する第1外部リードを含み、
前記第1接続孔が前記第1接続電極の上に重ねられており、前記第1接続孔近傍で前記第1接続パッドの溶融部が前記第1接続電極に溶接されており、
前記第1接続電極の材料は、前記第1接続パッドの一部が溶融し始めたときに溶融しない材料を有している半導体装置。 - 前記第1接続電極は、下地層と、その上に形成された溶融防止層を有する請求項1に記載の半導体装置。
- 前記第1接続パッドは、母材と、その表面に形成された溶融促進層を有する請求項1または2に記載の半導体装置。
- 表面に、バンプ電極である第1接続電極が形成された半導体素子と、
第1接続孔が形成された第1接続パッドを有する第1外部リードを含み、
前記第1接続孔が前記第1接続電極の上に重ねられており、前記第1接続孔近傍で前記第1接続パッドの溶融部が前記第1接続電極に溶接されており、
前記バンプ電極は、母材と、その表面に形成された溶融防止層を有する半導体装置。 - 前記第1外部リードは、電気的に接続された第1接続片をさらに有し、前記第1接続パッドは前記第1接続片に形成されている請求項1乃至4のいずれか一に記載の半導体装置。
- 前記第1接続片には、さらに第2接続孔が形成されており、前記第2接続孔が前記第1外部リードの上に重ねられ、前記第2接続孔近傍で前記第1接続片が前記第1外部リードに溶接されている請求項5に記載の半導体装置。
- 前記第1接続片と前記第1外部リードとは導電性ペーストを介して電気的に接続されている請求項5に記載の半導体装置。
- 第3接続孔が形成された第2接続パッドを有する第2外部リードと、
第3外部リードをさらに含み、
前記半導体素子は、表面側にソース電極となる前記第1接続電極とゲート電極となる第2接続電極が形成され、裏面側にドレイン電極が形成された縦型MOSFETを含み、
前記第3外部リードは前記ドレイン電極に電気的に接続され、
前記第3接続孔が第2接続電極の上に重ねられ、前記第3接続孔近傍で前記第2接続パッドの溶融部が前記第2接続電極に溶接されている請求項1乃至7のいずれか一に記載の半導体装置。 - 前記第2接続電極がバンプ電極である請求項8に記載の半導体装置。
- 第1接続電極が表面に形成された半導体素子を準備し、
第1接続孔が形成された第1接続パッドを有する第1外部リードを準備し、
前記第1接続孔を前記第1接続電極の上に重ね、
前記第1接続孔を含む領域にレーザ光を照射し、前記第1接続孔近傍で前記第1接続パッドを前記第1接続電極に溶接し、
前記第1接続パッドの一部が溶融し始めたときに、前記第1接続電極が溶融しない材料を用いる半導体装置の製造方法。 - 前記レーザ光はYAGレーザを光源とする請求項10に記載の半導体装置の製造方法。
- 前記第1接続電極がバンプ電極である請求項10または11に記載の半導体装置の製造方法。
- 一端に前記第1接続パッドが形成され、他端に第2接続孔を有する第1接続片を準備し、
前記第2接続孔を前記第1外部リードの上に重ね、
前記第2接続孔を含む領域にレーザ光を照射し、前記第2接続孔近傍で前記第1接続片を前記第1リードに溶接する工程をさらに含む請求項10乃至12のいずれか一に記載の半導体装置の製造方法。 - さらに、第3接続孔が形成された第2接続パッドを有する第2外部リードと、第3外部リードを準備し、
前記半導体素子は、表面側にソース電極となる前記第1接続電極とゲート電極となる第2接続電極が形成され、裏面側にドレイン電極が形成された縦型MOSFETを含み、
前記第3外部リードと前記ドレイン電極とを電気的に接続し、
前記第3接続孔を前記第2接続電極の上に重ね、
前記第3接続孔を含む領域にレーザ光を照射し、前記第3接続孔近傍で前記第2接続パッドを前記第2接続電極に溶接する工程をさらに含む請求項10乃至13のいずれか1項に記載の半導体装置の製造方法。 - 前記第2接続電極がバンプ電極である請求項14に記載の半導体装置の製造方法。
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US12/163,055 US8299620B2 (en) | 2007-07-05 | 2008-06-27 | Semiconductor device with welded leads and method of manufacturing the same |
CN200810135608XA CN101339934B (zh) | 2007-07-05 | 2008-07-07 | 具有焊接引线的半导体器件及其制造方法 |
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WO2014192298A1 (ja) * | 2013-05-30 | 2014-12-04 | 富士電機株式会社 | 半導体装置 |
WO2014203798A1 (ja) * | 2013-06-19 | 2014-12-24 | 富士電機株式会社 | 半導体装置 |
CN104923914B (zh) * | 2014-03-20 | 2017-08-22 | 大族激光科技产业集团股份有限公司 | 一种元器件引脚的焊接方法 |
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JP2018074088A (ja) * | 2016-11-02 | 2018-05-10 | 富士電機株式会社 | 半導体装置 |
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