Reticle independent reticle stage calibration
    8.
    发明授权
    Reticle independent reticle stage calibration 失效
    光栅独立标线片校准

    公开(公告)号:US06842247B1

    公开(公告)日:2005-01-11

    申请号:US10669680

    申请日:2003-09-25

    摘要: A system, apparatus, and method for calibrating the reticle of a lithographic system is presented herein. The method includes imaging a reticle through a lithographic system, measuring a set of height offsets based on the imaged reticle and decomposing the set of measured height offsets in accordance with a plurality of distortional factors. The invention further comprises determining the reticle stage deformation attributes based on the distortional factors and the reticle deformation attributes, and then calibrating the reticle stage based on the stage deformation attributes.

    摘要翻译: 本文给出了用于校准光刻系统的掩模版的系统,装置和方法。 该方法包括通过光刻系统对掩模版进行成像,基于成像的掩模版测量一组高度偏移,并根据多个失真因素分解所测量的高度偏移集合。 本发明还包括基于失真因子和掩模版变形属性确定标线片阶段变形属性,然后基于阶段变形属性来校准标线片台。