Patent ID: 7244335
Filing Date: 2007-07-17
Classification: G03F,H01L

Abstract:
1. A substrate processing system comprising: an ozone generator provided with electrodes and configured to generate an ozone-containing gas by applying an electric discharge produced by the electrodes to an oxygen-containing gas supplied to the ozone generator; a plurality of processing chambers each adapted to process therein a substrate with the ozone-containing gas generated by the ozone generator; a plurality of ozone-containing gas supply lines connecting the ozone generator to each of the processing chambers; a flow regulator adapted to regulate a flow rate of the oxygen-containing gas supplied to the ozone generator; and a controller configured to determine demand for the ozone-containing gas based on a changed number of processing chambers processing with the ozone-containing gas, and configured to control the flow regulator to regulate a flow rate of the oxygen-containing gas being supplied to the ozone generator so that a generating rate of the ozone-containing gas being generated by the ozone generator and thus a flow rate of the ozone-containing gas being discharged from the ozone generator to be supplied to the processing chamber or chambers substantially correspond to the ozone-containing gas demand based on the changed number of processing chambers processing with the ozone-containing gas.