Patent ID: 7821616

Claim:
An exposure apparatus comprising: an exposure unit comprising a projection optical system which forms a latent image in a resist film formed on a substrate by transferring a reticle pattern, wherein the exposure unit comprises a first chemical solution supply/drain subunit to selectively form a first liquid film having a flow between the resist film in a local area thereof and the projection optical system; and a water processing unit to form a second liquid film on a substantially entire surface of the substrate including the resist film formed the latent image therein, and remove the second liquid film, wherein the water processing unit comprises a cleaning nozzle supplying a second chemical solution onto the resist film formed on the substrate to form the second liquid film, and wherein the cleaning nozzle scans over substantially an entire surface of the substrate at a moving speed so as to control an amount of the second chemical solution supplied per unit area of the substrate to be substantially identical.