Abstract:
Methods and apparatus for processing substrates are provided herein. In some embodiments, an apparatus for processing a substrate may include a process chamber having an inner volume and an exhaust system coupled thereto, wherein the exhaust system includes a plurality of first conduits, each first conduit having an inlet adapted to receive exhaust from the inner volume of the process chamber. A pumping plenum is coupled to each of the plurality of first conduits. The pumping plenum has a pumping port adapted to pump the exhaust from the chamber. The conductance between each inlet of the plurality of first conduits and the pumping port is substantially equivalent.
Abstract:
The present invention generally comprises a showerhead insulator for electrically isolating a showerhead assembly from a processing chamber wall, a chamber liner assembly for lining a processing chamber, a lower chamber liner for lining an evacuation area of a processing chamber, and a flow equalizer for ensuring a uniform evacuation of a processing chamber. When processing a substrate within an etching chamber, the showerhead needs to be electrically isolated from ground. A showerhead insulator may insulate the showerhead from ground while also preventing plasma from entering the volume that it occupies. A chamber liner may protect the chamber walls from contamination and reduce chamber cleaning. A flow equalizer will permit processing gases to be evenly pulled into the evacuation channel rather than a disproportionate flow into the evacuation channel. A lower liner can aid in uniformly drawing the vacuum and protecting the chamber walls from contamination.
Abstract:
In a substrate vacuum processing chamber, a second inner slit passage door apparatus and method to supplement the normal slit valve and its door at the outside of the chamber. The inner slit passage door, blocks the slit passage at or adjacent the substrate processing location in a vacuum processing chamber to prevent process byproducts from depositing on the inner surfaces of the slit passage beyond the slit passage door and improves the uniformity of plasma in the processing chamber by eliminating a large cavity adjacent to the substrate processing location into which the plasma would otherwise expand. The inner slit passage door is configured and positioned in such a way as to avoid generating particles from the opening and closing motion of the second slit valve door, as it does not rub against any element of the chamber during its motion and the inner slit passage door is positioned with a predetermined gap from adjacent pieces and the door configuration includes beveled surfaces to further reduce the chance for particle generation, even when there is deposition of process byproducts on the door and its adjacent surfaces.
Abstract:
In a substrate vacuum processing chamber, a second inner slit passage door apparatus and method to supplement the normal slit valve and its door at the outside of the chamber. The inner slit passage door, blocks the slit passage at or adjacent the substrate processing location in a vacuum processing chamber to prevent process byproducts from depositing on the inner surfaces of the slit passage beyond the slit passage door and improves the uniformity of plasma in the processing chamber by eliminating a large cavity adjacent to the substrate processing location into which the plasma would otherwise expand. The inner slit passage door is configured and positioned in such a way as to avoid generating particles from the opening and closing motion of the second slit valve door, as it does not rub against any element of the chamber during its motion and the inner slit passage door is positioned with a predetermined gap from adjacent pieces and the door configuration includes beveled surfaces to further reduce the chance for particle generation, even when there is deposition of process byproducts on the door and its adjacent surfaces.
Abstract:
A plasma reactor includes a chamber body having an interior space that provides a plasma chamber, a gas distributor to deliver a processing gas to the plasma chamber, a pump coupled to the plasma chamber to evacuate the chamber, a workpiece support to hold a workpiece, and an intra-chamber electrode assembly including a plurality of filaments extending laterally through the plasma chamber between a ceiling of the plasma chamber and the workpiece support. At least one bus is electrically connected to a conductor of each filament. An RF power source is configured to apply a first RF signal of a first frequency to the plurality of filaments at a first location on at least one bus, and to apply a second RF signal of different second frequency to the plurality of filaments at a different second location on the at least one bus.
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:
Methods and apparatus for processing substrates are provided herein. In some embodiments, an apparatus for processing a substrate may include a process chamber having an inner volume and an exhaust system coupled thereto, wherein the exhaust system includes a plurality of first conduits, each first conduit having an inlet adapted to receive exhaust from the inner volume of the process chamber. A pumping plenum is coupled to each of the plurality of first conduits. The pumping plenum has a pumping port adapted to pump the exhaust from the chamber. The conductance between each inlet of the plurality of first conduits and the pumping port is substantially equivalent.
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 method and apparatus for providing flow into a processing chamber are provided. In one embodiment, a vacuum processing chamber is provided that includes a chamber body having an interior volume, a substrate support disposed in the interior volume and a gas distribution assembly having an asymmetrical distribution of gas injection ports. In another embodiment, a method for vacuum processing a substrate is provided that includes disposing a substrate on a substrate support within in a processing chamber, flowing process gas into laterally into a space defined above a gas distribution plate positioned in the processing chamber over the substrate, and processing the substrate in the presence of the processing gas.