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    • 2. 发明授权
    • Method and apparatus for calibrating marking position in chip scale marker
    • 用于校准芯片刻度标记中的标记位置的方法和装置
    • US06808117B2
    • 2004-10-26
    • US10138257
    • 2002-05-06
    • You-hie HanChoong-shin LeeYang-ghi MinByoung-min AhnHyeyg-jeon Chang
    • You-hie HanChoong-shin LeeYang-ghi MinByoung-min AhnHyeyg-jeon Chang
    • G06K1906
    • H01L21/67282H01L21/681
    • A method and apparatus for calibrating a marking position in a chip scale marker are provided. The method includes: (a) placing a screen which is equivalent in shape to the wafer on a wafer holder for holding the wafer; (b) irradiating a laser beam at a predetermined target point on the screen, and measuring the position of the laser beam by a camera being moved above the target point; (c) transmitting the measured position information to a controller; (d) repeating steps (b) and (c) at a plurality of predetermined points; (e) comparing the transmitted position information with the target point; and (f) calibrating the position of the laser beam irradiated on the wafer by adjusting mirrors of the galvano scanner in the event that a deviation between the position information and the target point falls beyond a predetermined value.
    • 提供了一种用于校准芯片尺度标记中的标记位置的方法和装置。 该方法包括:(a)在用于保持晶片的晶片保持器上放置等同于晶片的晶片的屏幕; (b)在屏幕上的预定目标点处照射激光束,并且通过移动到目标点上方的相机测量激光束的位置; (c)将测量的位置信息发送到控制器; (d)在多个预定点处重复步骤(b)和(c); (e)将发送的位置信息与目标点进行比较; 以及(f)在位置信息和目标点之间的偏差超过预定值的情况下,通过调整电流计扫描器的反射镜来校准照射在晶片上的激光束的位置。