Multi-level scanning method for defect inspection
    13.
    发明授权
    Multi-level scanning method for defect inspection 有权
    多级扫描方法进行缺陷检查

    公开(公告)号:US06484306B1

    公开(公告)日:2002-11-19

    申请号:US09466730

    申请日:1999-12-17

    CPC classification number: G06T7/0006 G06T2207/30148

    Abstract: A method for performing scanned defect inspection of a collection of contiguous areas using a specified false-alarm-rate and capture-rate within an inspection system that has characteristic seek times between inspection locations. The multi-stage method involves setting an increased false-alarm-rate for a first stage of scanning, wherein subsequent stages of scanning inspect only the detected areas of probable defects at lowered values for the false-alarm-rate. For scanning inspection operations wherein the seek time and area uncertainty is favorable, the method can substantially increase inspection throughput.

    Abstract translation: 一种在检查系统内使用指定的误报率和捕获率对连续区域的集合进行扫描缺陷检查的方法,所述检查系统在检查位置之间具有特征寻找时间。 多级方法涉及为第一级扫描设置增加的误报率,其中扫描的后续阶段仅在检测到的可能缺陷区域以较低的值检查误报率。 对于扫描检查操作,其中寻求时间和面积不确定性是有利的,该方法可以显着增加检查吞吐量。

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