Patent ID: 9073103
Filing Date: 2015-07-07
Classification: B08B,H01L

Abstract:
1. A liquid processing apparatus, comprising: a plurality of liquid processing units each configured to supply a processing liquid to an object to be processed and liquid-process the object; a common exhaust path configured to discharge atmospheres of the plurality of liquid processing units, wherein each of the plurality of liquid processing units has an individual exhaust path connecting it to the common exhaust path, and wherein each individual exhaust path has an opening-closing mechanism configured to open and close that individual exhaust path; an air injecting port provided in the common exhaust path and configured to inject air into the common exhaust path; an injection amount adjusting valve provided in the common exhaust path and configured to adjust the flow rate of the air injected from the air injecting port; and a controller programmed and configured to suppress pressure fluctuations in the plurality of liquid processing units by controlling an opening degree of the injection amount adjusting valve based on the number of open opening-closing mechanisms.