Abstract: A substrate processing method includes supplying onto a substrate a processing liquid which contains a volatile component and forms a film, vaporizing the volatile component in the processing liquid such that the processing liquid solidifies or cures on the substrate and forms a film on the substrate, and supplying onto the film formed on the substrate a removing liquid which removes the processing liquid. The processing liquid is supplied onto the substrate after dry etching or ashing is applied to the substrate.

Abstract: A method for cleaning a substrate includes supplying to a substrate a film-forming processing liquid which includes a volatile component and forms a film on the substrate, vaporizing the volatile component in the film-forming processing liquid such that the film-forming processing liquid solidifies or cures on the substrate and forms a processing film on the substrate, supplying to the substrate having the processing film a strip-processing liquid which strips the processing film from the substrate, and supplying to the processing film formed on the substrate a dissolving-processing liquid which dissolves the processing film after the supplying of the strip-processing liquid.