Abstract

A crucial component of lithographic modeling is the resist. Resists typically used at extreme-ultraviolet (EUV) wavelengths are derivatives of deep-ultraviolet chemically amplified resists. Models that describe these resists are often very complicated and are dependent on a large number of free parameters. Point-spread-function-based resist modeling serves as a simple alternative. I show this type of modeling to be a viable technique at EUV wavelengths by directly comparing modeling results with a variety of printing metrics, including process windows and isodense bias.

© 2004 Optical Society of America

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