Wire bonder
    5.
    发明授权
    Wire bonder 失效
    焊线机

    公开(公告)号:US5292050A

    公开(公告)日:1994-03-08

    申请号:US985111

    申请日:1992-12-03

    摘要: A wire bonder comprises a pattern recognition mechanism. The pattern recognition mechanism includes a TV camera head, a camera control unit, a program research unit, and a bonder controller. The bonder controller includes a microcomputer, a control circuit, and a servo drive unit. The TV camera head and camera control unit detect locations of a first bonding pad formed on a first semiconductor chip and a second bonding pad formed on a second semiconductor chip. The program research unit calculates amounts of shift of the detected locations of the first and second bonding pads from reference locations thereof. The microcomputer corrects locations of first and second bonding points and those of first and second cutting points in accordance with the calculated amounts of shift. The control circuit and servo drive unit control the first and second bonding points and the first and second cutting points based on the corrected locations.

    摘要翻译: 引线接合器包括图案识别机构。 图案识别机构包括电视摄像机头,照相机控制单元,程序研究单元和接合器控制器。 接合器控制器包括微型计算机,控制电路和伺服驱动单元。 电视摄像机头和照相机控制单元检测形成在第一半导体芯片上的第一焊盘的位置和形成在第二半导体芯片上的第二焊盘。 程序研究单元从其参考位置计算第一和第二接合焊盘的检测位置的偏移量。 微型计算机根据计算出的移位量校正第一和第二接合点的位置以及第一和第二切割点的位置。 控制电路和伺服驱动单元基于校正的位置来控制第一和第二接合点以及第一和第二切割点。