From exposure wavelength and numerical aperture, estimates lithographic resolution and depth of focus by the Rayleigh criterion for semiconductor process-node assessment.
📐 计算公式
分辨率 R = k1 × λ / NA;焦深 DOF = k2 × λ / NA²
基于瑞利判据/光刻分辨率模型:最小特征尺寸 R 与光源波长 λ 成正比、与数值孔径 NA 成反比(k1 为工艺因子);焦深 DOF ∝ λ/NA²(k2 因子),用于光刻工艺窗口评估。