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    • 91. 发明申请
    • PROCESS AND APPARATUS FOR JOINING AT LEAST TWO ELEMENTS
    • 用于加入至少两个元素的过程和装置
    • US20080047939A1
    • 2008-02-28
    • US11839686
    • 2007-08-16
    • Stefan Hummelt
    • Stefan Hummelt
    • B23K26/20
    • B23K1/0056B23K26/067B23K26/0673B23K26/0838H05K3/3421H05K3/3494H05K2203/107
    • Process and apparatus for joining at least two elements, in particular an electronic component such as an LED with a substrate, such as a PCB. An imaging means divides a light beam into a plurality of partial light beams and images these partial light beams, forming a plurality of discrete light spots, which form a plurality of discrete material joining portions. The light beam is divided using a diffractive optical element (DOE) also enabling a beam shaping and beam processing. A plurality of material joining portions can be formed simultaneously enabling a high process rate. The method is suited for laser soldering of components, which are not exposed to high thermal loads, e.g. for forming electrical contacting portions of LEDs. These discrete light spots can also be used for material processing, in particular for simultaneously forming a plurality of preweakened material zones or perforations in a substrate.
    • 用于连接至少两个元件的工艺和装置,特别是诸如具有诸如PCB的基板的LED的电子部件。 成像装置将光束分成多个部分光束并对这些部分光束进行成像,形成多个分立的光点,其形成多个分立的材料接合部分。 使用衍射光学元件(DOE)分割光束,其也能够进行光束成形和光束处理。 可以同时形成多个材料接合部,能够实现高处理速度。 该方法适用于不暴露于高热负荷的部件的激光焊接。 用于形成LED的电接触部分。 这些离散的光点也可以用于材料加工,特别是用于在衬底中同时形成多个预浸造材料区域或穿孔。