Patent ID: 7883824

Claim:
An evaluation method for lithography apparatus, the lithography apparatus comprising a coating unit configured to apply resist on a substrate, an exposure unit configured to expose the resist applied on the substrate, a heating unit configured to heat the exposed resist and a development unit configured to develop the heated resist to form a resist pattern, the evaluation method comprising: forming an evaluation resist pattern by using the lithography apparatus, the evaluation resist pattern including first and second evaluation patterns, the first and second evaluation patterns having different peripheral environments respectively; measuring dimensions of the first and second evaluation patterns to obtain a dimensional difference between the first and second resist evaluation patterns; estimating an exposure dose of the resist when the resist is exposed by the exposure unit, the estimating the exposure dose being performed based on the dimensional difference between the first and second resist evaluation patterns; and estimating an effective heating temperature of the resist when the resist is heated by the heating unit, the estimating the effective heating temperature being performed based on the estimated exposure dose and the dimensional difference.