Abstract:
A plasma reactor that generates plasma in a workpiece processing chamber by an electron beam, has an electron beam source and segmented beam dump that is profiled to promote uniformity in the electron beam-produced plasma.
Abstract:
A plasma, reactor that relies on an electron beam as a plasma source employs a profiled electron beam extraction grid in an electron beam source to improve uniformity.
Abstract:
A plasma processing chamber has a lower liner with an integrated flow equalizer. In an etching process, the processing gases may be unevenly drawn from the processing chamber which may cause an uneven etching of the substrate. The integrated flow equalizer is configured to equalize the flow of the processing gases evacuated from the chamber via the lower liner.
Abstract:
A plasma processing chamber has a lower liner with an integrated flow equalizer. In an etching process, the processing gases may be unevenly drawn from the processing chamber which may cause an uneven etching of the substrate. The integrated flow equalizer is configured to equalize the flow of the processing gases evacuated from the chamber via the lower liner.
Abstract:
A coaxial VHF power coupler includes conductive element inside a hollow cylindrical outer conductor of the power coupler and surrounding an axial section of a hollow cylindrical inner conductor of the power coupler. Respective plural motor drives contacting the hollow cylindrical outer conductor are connected to respective locations of the movable conductive element.
Abstract:
An apparatus configured to confine a plasma within a processing region in a plasma processing chamber. In one embodiment, the apparatus includes a ring that has a baffle having a plurality of slots and a plurality of fingers. Each slot is configured to have a width less than the thickness of a plasma sheath contained in the processing region.
Abstract:
An apparatus configured to confine a plasma within a processing region in a plasma processing chamber. In one embodiment, the apparatus includes a ring that has a baffle having a plurality of slots and a plurality of fingers. Each slot is configured to have a width less than the thickness of a plasma sheath contained in the processing region.
Abstract:
The disclosure pertains to a capactively coupled plasma source in which VHF power is applied through an impedance-matching coaxial resonator having a folded structure and symmetrical power distribution.
Abstract:
The present invention generally comprises a heated showerhead assembly that may be used to supply processing gases into a processing chamber. The processing chamber may be an etching chamber. When processing gas is evacuated from the processing chamber, the uniform processing of the substrate may be difficult. As the processing gas is pulled away from the substrate and towards the vacuum pump, the plasma, in the case of etching, may not be uniform across the substrate. Uneven plasma may lead to uneven etching. To prevent uneven etching, the showerhead assembly may be separated into two zones each having independently controllable gas introduction and temperature control. The first zone corresponds to the perimeter of the substrate while the second zone corresponds to the center of the substrate. By independently controlling the temperature and the gas flow through the showerhead zones, etching uniformity of the substrate may be increased.
Abstract:
A plasma processing chamber has a lower liner with an integrated flow equalizer. In an etching process, the processing gases may be unevenly drawn from the processing chamber which may cause an uneven etching of the substrate. The integrated flow equalizer is configured to equalize the flow of the processing gases evacuated from the chamber via the lower liner.