Modification of an image of a pattern during an imaging process
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    发明申请
    Modification of an image of a pattern during an imaging process 审中-公开
    在成像过程中修改图案的图像

    公开(公告)号:US20050210438A1

    公开(公告)日:2005-09-22

    申请号:US10886055

    申请日:2004-07-08

    IPC分类号: H01L21/027 G03F7/20 G06F17/50

    CPC分类号: G03F7/705 G03F7/706

    摘要: A method is provided for modifying an image of a pattern during a lithographic imaging process, where the pattern is arranged on a mask for imaging by a projection system on a surface, and the image is an image formed from the pattern by the projection system. In this method the imaging quality of the projection system is described by selected imaging quality parameters, and the image is adjustable by image adjustment parameters of the projection system. The method comprises the steps of determining an ideal image of the pattern, determining a simulated distorted image of the pattern based on the selected imaging quality parameters; determining a deviation between the simulated distorted image and the ideal image, and adapting the image adjustment parameters during the imaging process to minimize the deviation between the simulated distorted image and the ideal image on the basis of the selected imaging quality parameters.

    摘要翻译: 提供一种用于在光刻成像处理期间修改图案的图像的方法,其中图案被布置在用于通过投影系统在表面上成像的掩模上,并且图像是通过投影系统从图案形成的图像。 在这种方法中,通过选定的成像质量参数来描述投影系统的成像质量,并且可以通过投影系统的图像调整参数来调整图像。 该方法包括以下步骤:确定图案的理想图像,基于所选择的成像质量参数确定图案的模拟失真图像; 确定所述模拟失真图像和所述理想图像之间的偏差,以及在所述成像处理期间适配所述图像调整参数,以基于所选择的成像质量参数来最小化所述模拟失真图像与所述理想图像之间的偏差。