US Patent 11517941 Substrate processing method and substrate processing apparatus

The substrate processing method includes a hydrophilization step of hydrophilizing a surface of a substrate, a processing liquid supplying step of supplying a processing liquid to the hydrophilized surface of the substrate, a processing film forming step in which the processing liquid supplied to the surface of the substrate is solidified or cured to form a processing film on the surface of the substrate, and a peeling step in which a peeling liquid is supplied to the surface of the substrate to peel the processing film from the surface of the substrate. The peeling step includes a penetrating hole forming step in which the processing film is partially dissolved in the peeling liquid to form a penetrating hole in the processing film.