Method and apparatus for selectively applying solder paste to multiple
types of printed circuit boards
    1.
    发明授权
    Method and apparatus for selectively applying solder paste to multiple types of printed circuit boards 失效
    用于选择性地将焊膏施加到多种类型的印刷电路板的方法和装置

    公开(公告)号:US5436028A

    公开(公告)日:1995-07-25

    申请号:US918741

    申请日:1992-07-27

    IPC分类号: B41F15/08 H05K3/12 B05D1/00

    摘要: A single screen printer (200) holds at least two solder stencils (225). The screen printer (200) receives a printed circuit board (105) and determines a printed circuit board configuration. When the printed circuit board (105) is of a first configuration, the printed circuit board (105) is aligned with a first stencil (225) and solder paste is selectively applied to the printed circuit board (105) through the first stencil (225). When the printed circuit board (105) is of a second configuration, the printed circuit board is aligned with a second stencil (225) through which solder paste is selectively applied to the printed circuit board (105).

    摘要翻译: 单个丝网印刷机(200)容纳至少两个焊锡模板(225)。 丝网印刷机(200)接收印刷电路板(105)并确定印刷电路板的结构。 当印刷电路板(105)具有第一种结构时,印刷电路板(105)与第一模板(225)对准,并且焊膏通过第一模板(225)选择性地施加到印刷电路板(105) )。 当印刷电路板(105)具有第二配置时,印刷电路板与第二模板(225)对准,焊膏通过该第二模板选择性地施加到印刷电路板(105)。

    Apparatus for selectively applying solder paste to multiple types of
printed circuit boards
    2.
    发明授权
    Apparatus for selectively applying solder paste to multiple types of printed circuit boards 失效
    用于选择性地将焊膏施加到多种类型的印刷电路板的装置

    公开(公告)号:US5452656A

    公开(公告)日:1995-09-26

    申请号:US238284

    申请日:1994-05-05

    IPC分类号: B41F15/08 H05K3/12 B41F17/00

    摘要: According to the present invention, a screen printer (200) selectively applies solder paste to multiple types of printed circuit boards. The screen printer (200) includes mobile placement equipment (210), which receives and transports the boards, and application equipment, which includes first and second stencils (225), frames for holding the stencils (225) in fixed positions, and an applicator (415) for applying solder paste to a board through either the first or second stencil (225). A controller (215) determines the type of a board received by the mobile placement equipment (210), then, when the board is of a first type, directs the mobile placement equipment (210) to a location aligned with the first stencil. When the board is of a second type, the mobile placement equipment (210) is directed to a location aligned with the second stencil.

    摘要翻译: 根据本发明,丝网印刷机(200)选择性地将焊膏施加到多种类型的印刷电路板上。 丝网印刷机(200)包括移动放置设备(210),其接收和运输板,以及包括第一和第二模板(225)的应用设备,用于将模板(225)保持在固定位置的框架和施加器 (415),用于通过所述第一或第二模版(225)将焊膏施加到板。 控制器(215)确定由移动放置设备(210)接收的板的类型,然后当板是第一类型时,将移动放置设备(210)引导到与第一模板对准的位置。 当电路板是第二类型时,移动放置设备(210)被引导到与第二模板对准的位置。

    Solid phase conformal coating suitable for use with electronic devices
    3.
    发明授权
    Solid phase conformal coating suitable for use with electronic devices 失效
    适用于电子设备的固相保形涂层

    公开(公告)号:US5475379A

    公开(公告)日:1995-12-12

    申请号:US405429

    申请日:1995-03-16

    IPC分类号: H05K3/28 H05K1/00

    摘要: An electronic device (100) comprises a circuit carrying substrate (300) having an electronic circuit pattern (301) formed thereon, at least one component (302) having leads (304) for electrically coupling the at least one component (302) to the electronic circuit pattern (301) formed on the circuit carrying substrate (300), and a thermoplastic coating (200, 200') for covering the leads (304) of the at least one component (302) to insulate the leads (304) thereof.

    摘要翻译: 电子设备(100)包括具有形成在其上的电子电路图案(301)的电路承载衬底(300),至少一个组件(302),其具有用于将所述至少一个组件(302)电耦合到 形成在电路承载基板(300)上的电子电路图案(301)和用于覆盖所述至少一个部件(302)的引线(304)的热塑性涂层(200,200')以使其引线(304)绝缘 。