Patent attributes
A liquid processing apparatus includes a substrate holding member configured to rotate along with a substrate held thereon in a horizontal state; a rotary cup configured to surround the substrate held on the substrate holding member, to rotate along with the substrate, and to receive the process liquid thrown off from the substrate; a rotation mechanism configured to integrally rotate the rotary cup and the substrate holding member; and a liquid supply mechanism configured to supply a process liquid onto the substrate. The apparatus further includes an annular drain cup and an annular exhaust cup with an exhaust port connected thereto to discharge a collected gas component. A gas-flow adjusting mechanism is disposed between the exhaust cup and the exhaust port and configured to adjust a gas flow of the gas component to flow toward the exhaust port from essentially all around within the exhaust cup.
