Patent ID: 6193802
Filing Date: 2001-02-27
Classification: B01D,B01J,C23C,H01J,H05H,Y02C,Y02P

Abstract:
An apparatus for collecting particles exhausted from a substrate processing chamber, the apparatus comprising:a collection chamber having an inlet and an outlet and a fluid conduit therebetween, the fluid conduit being at least partially defined by first and second electrodes each having opposing surfaces, wherein the fluid conduit is structured and arranged to direct gas flow around at least one bend of the fluid conduit defining a collection area that inhibits egress of the particulate matter from the collection chamber;a plasma generation system, operatively coupled to supply power to at least one of the electrodes to form or maintain a plasma within said fluid conduit; andan electrostatic particle trapping system, operatively coupled to apply a voltage between the electrodes to collect particulate matter on the opposing electrode surfaces.