Systems and methods for reducing effluent build-up in a pumping exhaust system

    公开(公告)号:US11332824B2

    公开(公告)日:2022-05-17

    申请号:US15263838

    申请日:2016-09-13

    摘要: A method for reducing effluent buildup in a pumping exhaust system of a substrate processing system includes, during a substrate treatment process, arranging a substrate on a substrate support in a processing chamber; supplying one or more process gases to the processing chamber; supplying an inert dilution gas at a first flow rate to the pumping exhaust system; performing the substrate treatment process on the substrate in the processing chamber; evacuating reactants from the processing chamber using the pumping exhaust system. The method includes, after the substrate treatment process, supplying cleaning plasma including cleaning gas in the processing chamber during a cleaning process; and supplying the inert dilution gas at a second flow rate that is less than the first flow rate to the pumping exhaust system during the cleaning process.