Patent ID: 9052610
Filing Date: 2015-06-09
Classification: G03F,H01L

Abstract:
1. A coating and developing method for coating a surface of a substrate with a resist film by applying a liquid resist to the surface of the substrate and forming a water-repellent protective film on the resist film, or forming a water-repellent resist film on the substrate, and processing the substrate by a developing process after the substrate has been processed by an immersion exposure process, said coating and developing method comprising the steps of: forming a resist film on a surface of a substrate; cleaning the surface of the substrate with a cleaning liquid by a cleaning unit; carrying the cleaned substrate to an exposure system by a carrying means to process the substrate by an immersion exposure process; and controlling the carrying means to adjust a time interval between a wetting time point when the surface of the substrate is wetted with the cleaning liquid and a delivery time point when the substrate is delivered to an exposure system to a first set time interval; wherein the first set time interval is determined beforehand such that the substrate is subjected to the immersion exposure process after contact angle drop rate at which contact angle between the surface of the substrate and the cleaning liquid decreases has dropped from an initial level at a wetting time point when the surface of the substrate is wetted with the cleaning liquid to a level far lower than the initial level and the contact angle has dropped to substantially a fixed level.