Patent ID: 8201568

Claim:
A liquid treatment apparatus for processing a target object, comprising: a container; a support part located within the container and supporting a target object; a rotation driving mechanism to rotate the target object supported by the support part; a processing liquid supply mechanism to supply processing liquid to the target object; a rotation cup that is located outside of an outer circumference of the target object covering at least an upper portion of the target object and is rotatable together with the support part; a drainage cup configured to surround an outer circumference of the rotation cup; a rotation exhaust cup that is arranged above the rotation cup and is rotatable together with the rotation cup; and a discharge mechanism to discharge processing liquid atmosphere guided by the rotation cup and the rotation exhaust cup, wherein the processing liquid atmosphere guided by an inner surface of the rotation cup is exhausted through the drainage cup, and the processing liquid atmosphere guided by a gap formed between the rotation cup and the rotation exhaust cup is exhausted over an outer wall of the drainage cup.