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    • 10. 发明申请
    • ETCHING DEVICE AND METHOD FOR MANUFACTURING PRINTED CIRCUIT BOARD USING SAME
    • 蚀刻装置和使用其制造印刷电路板的方法
    • US20120031873A1
    • 2012-02-09
    • US13087390
    • 2011-04-15
    • YAO-WEN BAI
    • YAO-WEN BAI
    • H05K3/22C23F1/08
    • H05K3/429H05K1/0251H05K3/0088H05K3/068H05K2203/0763
    • In a method for manufacturing a printed circuit board, a substrate, including a number of plated through holes (PTHs) is provided. Each of the PTHs has an electrically conductive layer plated on its inner wall and includes an electrically connecting portion and a stub. A protective layer is formed on a surface of the substrate adjacent to the stub. An etching device, including an upper plate and a number of spray tubes corresponding to the PTHs, is provided. Each of the spray tubes includes a protruding portion beyond the upper plate. The substrate is arranged in such a manner that the protective layer is in contact with the upper plate and the protruding portions are received in the stubs. After that, the protruding portions spray an etchant to etch and remove the electrically conductive layer of the stubs, and the protective layer is removed.
    • 在制造印刷电路板的方法中,提供了包括多个电镀通孔(PTH)的基板。 每个PTH具有在其内壁上电镀的导电层,并且包括电连接部分和短截线。 在与基座相邻的基板的表面上形成保护层。 提供了一种蚀刻装置,包括对应于PTH的上板和多个喷管。 每个喷射管包括超过上板的突出部分。 衬底被布置成使得保护层与上板接触并且突出部分被接收在短截线中。 之后,突出部分喷涂蚀刻剂以蚀刻并去除短截线的导电层,并且去除保护层。