Patent ID: 7547614

Claim:
A solution treatment apparatus in which a substrate holding portion is rotated with a treatment solution being supplied from a treatment solution nozzle onto a substrate held on the substrate holding portion to spread the treatment solution on the substrate, said apparatus comprising: a plurality of solution treatment sections, each of said solution treatment sections including: a rotatable substrate holding portion; a cup body provided to surround a substrate held on said substrate holding portion; an exhaust path connected to said cup body and an exhaust rate adjustment section provided in said exhaust path; a common exhaust path, said exhaust path of each of said solution treatment sections connecting said cup body thereof to said common exhaust path; a storage section for storing data in which combinations of exhaust rates of said exhaust path of each solution treatment section is set in such order that the exhaust rate of each cup body may have a predetermined exhaust rate; and a control section for determining the number of rotations of said substrate holding portion of each treatment section, for reading a combination of set exhaust rates corresponding to a combination of the determined number of rotations of each said substrate holding portion by referring to the data in said storage section, and for adjusting an opening of each said exhaust rate adjustment section to obtain openings corresponding to the read set exhaust rates.