Patent ID: 8597462

Claim:
A movable chamber liner configured to fit around a perimeter of a substrate support, in a plasma reaction chamber useful for processing a semiconductor substrate, the chamber liner comprising: an annular bottom wall with a plurality of gas passages, the annular bottom wall configured to be below a substrate-supporting surface of the substrate support when the movable chamber liner is in a lower position in the plasma reaction chamber; a continuous outer cylindrical wall free of openings therethrough extending axially upward from an outer perimeter of the bottom wall, an upper surface of the outer cylindrical wall extending above the substrate-supporting surface of the substrate support when the movable chamber liner is in the lower position; an inner rim extending axially upward from an inner perimeter of the bottom wall, an uppermost surface of the inner rim not extending above the substrate-supporting surface of the substrate support when the movable chamber liner is in the lower position; a heater supported by the inner rim and operable to heat the movable chamber liner to an elevated temperature; at least one electrical receptacle on a lower surface of the liner, comprising one or more conductive contacts (heater contacts) electrically connected to the heater and electrically insulated from the liner; at least one electrical receptacle on the lower surface of the liner, comprising a conductive contact (RF ground return button) electrically connected to the liner and electrically insulated from any heater contacts; wherein each electrical receptacle is adapted to be attached to one of a plurality of vertically movable actuators, wherein the plurality of vertically movable actuators are configured to move the chamber liner along its axis to an upper position to allow loading and unloading of a semiconductor substrate; wherein: at least one of the actuators comprises a lead configured to be electrically connected to a heater contact in one of the electrical receptacles and to a power supply; at least one of the actuators comprises another lead configured to be electrically connected to another heater contact in one of the electrical receptacles and to the electrical ground; each of the actuators comprises a lead configured to be electrically connected to a RF return button in an electrical receptacle and to the RF ground.