Patent ID: 8578877

Claim:
A spin coater comprising: a rotation table that rotatably holds a disc substrate, a spin-cup that surrounds the outer circumference of the disc substrate held on the rotation table, a dripping unit configured to drip an ultraviolet-curable resin composition onto a surface of the disc substrate, a rotating unit configured to rotate the disc substrate via the rotation table to spread the ultraviolet-curable resin composition over the surface of the disc substrate, a heating unit configured to heat the ultraviolet-curable resin composition on the disc substrate, a temperature controlling unit configured to control a reaching temperature of the spin cup, which is increased by the heating unit each time the ultraviolet-curable resin composition is spread, so as to be constant over multiple spin coating processes, and a sucking unit configured to suck air in the spin cup to discharge the air from the spin cup during a time interval from the finish of each spin coating process to the start of the next spin coating process, wherein the sucking unit has a sucking port facing an opening formed on the top surface of the spin cup and the sucking unit is movable as needed.