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COMPUTATIONAL LITHOGRAPHY WITH FEATURE UPSIZING
COMPUTATIONAL LITHOGRAPHY WITH FEATURE UPSIZING
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机译:具有特征尺寸调整的计算光刻技术
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摘要
A method of computational lithography includes providing through-focus critical dimension (CD) curves at a range of different focus values (Bossung curves) for a plurality of feature types that include different ratios of line width to space width. Using software run on a computing device, it is determined if there is at least one marginal feature type from the plurality of feature types based an image tool capability and a predetermined process specification affected by at least one of the plurality of feature types. Provided a marginal feature type is determined to be present, at least the marginal feature type(s) is upsized. A degree of upsizing increases as a curvature of the Bossung curves increases. A computational lithography model is compiled including the upsizing.
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