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    • 5. 发明授权
    • Mask pattern preparation method, semiconductor device manufacturing method and recording medium
    • 掩模图案制备方法,半导体器件制造方法和记录介质
    • US07793252B2
    • 2010-09-07
    • US12222479
    • 2008-08-11
    • Toshiya KotaniShigeki NojimaShoji Mimotogi
    • Toshiya KotaniShigeki NojimaShoji Mimotogi
    • G06F17/50G03F9/00
    • G03F7/70433G03F7/705
    • A lithography simulation method includes: taking in design data of a pattern to be formed on a substrate and mask data to prepare a mask pattern used in forming a latent image of the pattern on the substrate by transmission of an energy ray; obtaining the latent image of the pattern by calculation of an intensity of the energy ray; locally changing, at least in a portion corresponding to a pattern to be interested, a relative position in a direction of the intensity of the energy ray between a latent image curve and a reference intensity line in accordance with a distance between the pattern to be interested and a pattern of a neighboring region, the latent image curve being an intensity distribution curve of the energy ray constituting the latent image, the reference intensity line being defined to specify a position of an edge of the pattern to be interested; and calculating a distance between intersections of a portion of the latent image curve corresponding to the pattern to be interested and the reference intensity line in the changed relative position to define an interested line width of the pattern to be interested.
    • 光刻模拟方法包括:获取要在基板上形成的图案的设计数据,并且掩模数据,以通过透射能量线来制备用于在基板上形成图案的潜像所使用的掩模图案; 通过计算能量射线的强度来获得图案的潜像; 至少在与感兴趣的图案对应的部分中,根据感兴趣的图案之间的距离,在潜像图像曲线和参考强度线之间的能量射线的强度的方向上的相对位置 以及相邻区域的图案,所述潜像曲线是构成所述潜像的能量射线的强度分布曲线,所述基准强度线被定义为指定所述图案的边缘的位置; 以及计算与感兴趣的图案对应的潜在图像曲线的一部分的交点与变化的相对位置中的基准强度线之间的距离,以定义感兴趣的图案的感兴趣的线宽。