OPTIMIZATION OF A METROLOGY ALGORITHM FOR EXAMINATION OF SEMICONDUCTOR SPECIMENS

    公开(公告)号:US20240428395A1

    公开(公告)日:2024-12-26

    申请号:US18214231

    申请日:2023-06-26

    Abstract: There is provided a metrology system and method. The method includes obtaining a set of tool parameters selected from multiple tool parameters characterizing the examination tool, varying a value of each tool parameter from the set a number of times, giving rise to a plurality of tool settings corresponding to a plurality of combinations of varying values of the set of tool parameters, configuring an examination tool with each given tool setting of the plurality of tool settings; and in response to receiving, from the examination tool, a plurality of sets of images corresponding to the plurality of tool settings and representing expected tool variations over time in a single tool or between different tools, optimizing a metrology algorithm using the plurality of sets of images so as to meet at least one metrology metric including tool matching.

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