Patent ID: 9117854
Filing Date: 2015-08-25
Classification: H01L

Abstract:
1. A substrate processing apparatus comprising: a processing part configured to process a substrate with the use of a chemical liquid; a chemical-liquid supply line disposed between the processing part and a chemical-liquid storing container and configured to supply the chemical liquid from the chemical-liquid storing container into the processing part; the chemical-liquid storing container configured to store the chemical liquid; a chemical-liquid supply driving part configured to supply the chemical liquid from the chemical-liquid storing container into the processing part; a circulation line configured to circulate the chemical liquid stored in the chemical-liquid storing container; a mixture generating part provided on the circulation line; and an inert-gas supply source configured to supply an inert gas into the mixture generating part; wherein the mixture generating part is configured to mix the chemical liquid supplied from the chemical-liquid storing container and the inert gas supplied from the inert-gas supply source with each other so as to generate a gas-liquid mixture, and to supply the gas-liquid mixture into the chemical-liquid storing container.