Patent ID: 8017287
Filing Date: 2011-09-13
Classification: G03F

Abstract:
1. A development method, comprising: exposing a photosensitive film formed on a substrate at a predetermined exposure amount; carrying out a first development process that develops the exposed photosensitive film at a predetermined first development condition so as to leave an unexposed photosensitive on the substrate film; obtaining a sensitivity information of the photosensitive film from a film thickness reduction of the photosensitive film developed by the first development process and the predetermined exposure amount; predicting pattern dimensions of multiple types of patterns to be formed when a second development process is carried out following the first development process from the sensitivity information, and determining a first acceptable range of a development condition in the second development process; determining a second acceptable range of the development condition in the second development process from the first acceptable range and a variation amount of pattern dimensions between the multiple types of patterns after the second development process ; and determining a second development condition in the second development process so as to satisfy both of the first and second acceptable ranges.