DIELECTRIC WINDOW SUPPORTING STRUCTURE FOR INDUCTIVELY COUPLED PLASMA PROCESSING APPARATUS

An Dielectric window of an inductively coupled plasma (ICP) processing apparatus that includes a main container 10 that houses a substrate to be processed S to perform plasma processing, a substrate mounting unit 20 on which the substrate to be processed S is mounted in the main container 10, an exhaust system 30 that discharges gas from inside of the main container 10, a dielectric window 100 that form an upper window of the main container 10, and one or more RF antennas 40 which are installed to correspond to the dielectric windows 100 outside the main container 10 and to which RF power is applied to form induced electric field in the main container 10, wherein the dielectric window 100 is integrated from a plurality of dielectric members 110 divided in a horizontal direction, is provided, so it is possible to minimize power loss by the replacement of a dielectric supporting structure at a region where an antenna is installed, with ceramic.