Patent ID: 10847387

Abstract:
A method of drying a substrate after processing the substrate with a processing liquid (e.g., DIW) includes drying the substrate by moving, after forming a liquid film by supplying a first drying liquid (e.g., IPA) having higher volatility than the processing liquid onto the substrate W, a supply position P1 of the first drying liquid such that a distance R1 from a rotation center O of the substrate to the supply position P1 of the first drying liquid is gradually increased, while rotating the substrate, to expand a dry region DC in a concentric shape. The drying of the substrate comprises supplying a second drying liquid onto the substrate while supplying the first drying liquid. A distance R2 from the rotation center to a supply position P2 of the second drying liquid is larger than the distance R1 from the rotation center to the supply position P1.