Patent ID: 8084372

Claim:
A substrate processing method by a substrate processing apparatus, comprising: a coating step of applying a coating solution containing polysilazane to a substrate to form a coating film; a cooling step of cooling the coating film formed on the substrate; an ultraviolet irradiation step of applying in a first treatment container an ultraviolet ray to the cooled coating film to cut a molecular bond of polysilazane in the coating film; an oxidation step of oxidizing the coating film by water vapor in which the molecular bond of polysilazane has been cut while heating the coating film in a second treatment container that is different from the first treatment container, the oxidation step performed after the ultraviolet irradiation step; and a baking step of baking the oxidized coating film in a third treatment container, the baking step performed after the oxidation step, wherein a heating temperature of the coating film in said oxidation step is equal to or lower than a baking temperature of the coating film in said baking step, and the first, second, and third container are provided in the same substrate processing apparatus.