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    Accurate alignment of semiconductor devices and sockets
    1.
    发明申请
    Accurate alignment of semiconductor devices and sockets 审中-公开
    半导体器件和插座的精确对准

    公开(公告)号：US20080238460A1

    公开(公告)日：2008-10-02

    申请号：US11731777

    申请日：2007-03-30

    申请人： Lothar Kress ,  Wei-ming Chi ,  Pooya Tadayon

    发明人： Lothar Kress ,  Wei-ming Chi ,  Pooya Tadayon

    IPC分类号： G01R31/02

    CPC分类号： G01R31/2891 ,  G01R1/0433

    摘要： Methods and apparatus to provide accurate alignment for semiconductor sockets are described. In one embodiment, a carrier is utilized to align a device under test with a test socket. In some embodiments, alignment features on a carrier, a device under test, and/or a test socket are used to align the devices relative to each other.

    摘要翻译： 描述了为半导体插座提供精确对准的方法和装置。 在一个实施例中，使用载体来将被测设备与测试插座对准。 在一些实施例中，使用载体，被测设备和/或测试插座上的对准特征来相对于彼此对准设备。

    Variable-pitch pick and place device
    4.
    发明授权
    Variable-pitch pick and place device 失效
    可变间距拾取和放置装置

    公开(公告)号：US06439631B1

    公开(公告)日：2002-08-27

    申请号：US09518436

    申请日：2000-03-03

    申请人： Lothar Kress

    发明人： Lothar Kress

    IPC分类号： B65B3538

    CPC分类号： B65G47/918 ,  Y10S294/907

    摘要： Improved variable-pitch pick and place devices may include one or more improvements such as a mechanical linkage such as pantograph linkage, the linkage itself linked to a plurality of device-gripping mechanisms arranged in a row so as to keep uniform, though variable, spacing between the device-gripping mechanisms, with the number of such mechanisms being increased relative to the number of parts in the linkage for reduced tolerance stack-up and improved positioning accuracy. The horizontal position of the linkage may be fixed at a position not at an end thereof, and desirably within the middle third or at the middle thereof. The linkage may be controlled at three points. These points may include a vertically flexible but horizontally fixed link to a supporting structure at the middle of the pantograph, a link at one end of the pantograph to one side of an endless loop of timing belt, and a link at the other end of the pantograph to the other side of the endless loop of timing belt. The links to the timing belt at the ends of the pantograph may be made via two end-most device-gripping mechanisms. The position of the timing belt may be controlled by a servomotor with a position encoder, the servomotor controlled by a controller such as a computer. The device-gripping mechanisms may include a vacuum tip grounded and supplied with vacuum by an electrically-conductive vacuum tube.

    摘要翻译： 改进的可变间距拾取和放置装置可以包括一个或多个改进，例如机械联动，例如缩放联动装置，连杆本身连接到排列成一排的多个装置夹持机构，以便保持均匀，尽管可变的间距 在装置夹紧机构之间，这种机构的数量相对于联动装置中的部件的数量增加，以减少公差叠加和改进的定位精度。 连杆的水平位置可以固定在不在其端部的位置，并且期望地在中间的第三或中间。 连杆可以控制在三点。 这些点可以包括在缩放仪的中间处的支撑结构的垂直柔性但水平固定的连杆，缩放仪的一端处的连接到同步带的无限循环的一侧，并且在另一端处的连杆 受电弓到同步带无限循环的另一边。 可以通过两个最终的装置抓握机构在缩放仪的端部处与定时带的连接。 同步带的位置可以由具有位置编码器的伺服电机控制，伺服电机由诸如计算机的控制器控制。 装置夹持机构可以包括真空尖端接地并通过导电真空管提供真空。