发明申请
US20070199926A1 Method of laser welding, manufacturing method of control unit, and car electronic control unit
审中-公开
激光焊接方法,控制单元制造方法,汽车电子控制单元
- 专利标题: Method of laser welding, manufacturing method of control unit, and car electronic control unit
- 专利标题(中): 激光焊接方法,控制单元制造方法,汽车电子控制单元
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申请号: US11709728申请日: 2007-02-23
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公开(公告)号: US20070199926A1公开(公告)日: 2007-08-30
- 发明人: Hirofumi Watanabe , Daisuke Yasukawa , Masaaki Suzuku
- 申请人: Hirofumi Watanabe , Daisuke Yasukawa , Masaaki Suzuku
- 申请人地址: JP Chiyoda-ku
- 专利权人: HITACHI, LTD.
- 当前专利权人: HITACHI, LTD.
- 当前专利权人地址: JP Chiyoda-ku
- 优先权: JP2006-053038 20060228; JP2006-342060 20061220
- 主分类号: B23K26/22
- IPC分类号: B23K26/22
摘要:
The invention stabilizes a quality of a laser welding in a terminal in which an outer appearance characteristic is not stabilized, and achieves an improvement of a positioning characteristic at a time of executing the laser welding without generating a cost increase. A hole is formed in a terminal of an integrated circuit sealed by a plastic molding. At a time of welding, a welding operation position is positioned by recognizing the hole in accordance with an image recognition, and a laser welding is executed by irradiating a laser beam to a portion of a terminal and a bus bar positioned near an edge portion of the hole. The hole is preferably formed in a circular shape or a similar shape thereto.