Patent classifications
H01J37/32486
UNIFORMITY CONTROL FOR PLASMA PROCESSING USING WALL RECOMBINATION
A system, method, and apparatus for processing substrates. A plasma processing system includes a processing chamber having a chamber body having walls with a first material enclosing an interior volume. The plasma processing system further includes a plasma source designed to expose a substrate disposed within the processing chamber to plasma related fluxes. The first material has a first set of recombination coefficients associated with the plasma related fluxes. The plasma processing system further includes a second material disposed along a first region of the chamber body, the first material having a second set of plasma recombination coefficients associated with the plasma related fluxes. The second set of plasma recombination coefficients is different that the first set of plasma recombination coefficients.
Plasma Processing Apparatus with Tunable Electrical Characteristic
A plasma processing apparatus includes a plasma processing chamber, a source power coupling element configured to generate plasma in an interior of the plasma processing chamber by coupling source power to the plasma processing chamber, a DC pulse generator configured to generate a DC pulse train at a DC pulse frequency, a substrate holder disposed in the interior of the plasma processing chamber, a DC coupling element coupled to the DC pulse generator, a DC current path including the DC coupling element, the plasma, and a reference potential node in a series configuration, the DC coupling element being configured to bias the substrate holder relative to the reference potential node using the DC pulse train, and a capacitive pre-coat layer disposed between the DC coupling element and the plasma. The capacitive pre-coat layer increases the RC time constant of the DC current path according to the DC pulse frequency.
Minimizing radical recombination using ALD silicon oxide surface coating with intermittent restoration plasma
Methods and apparatus for remote plasma processing are provided. In various embodiments, a reaction chamber is conditioned by forming a low recombination material coating on interior chamber surfaces. The low recombination material helps minimize the degree of radical recombination that occurs within the reaction chamber when the reaction chamber is used to process substrates. During processing on substrates, the low recombination material may become covered by relatively higher recombination material (e.g., as a byproduct of the substrate processing), which results in a decrease in the amount of radicals available to process the substrate over time. The low recombination material coating may be reconditioned through exposure to an oxidizing plasma, which acts to reform the low recombination material coating. The reconditioning process may occur periodically as additional processing occurs on substrates.
PLASMA CHEMICAL VAPOR DEPOSITION DEVICE
A plasma chemical vapor deposition device includes an adhesion suppressing sheet suppressing a processing gas from adhering to an inner wall of a reactor. The adhesion suppressing sheet is arranged between a placement position of a workpiece and the inner wall of the reactor. The adhesion suppressing sheet is a fabric that includes first fiber bundles and second fiber bundles that extend in directions different from each other. In the first fiber bundles, front side portions and rear side portions are alternately arranged in a first direction. In the second fiber bundles, front side portions and rear side portions are alternately arranged in a second direction.
MINIMIZING RADICAL RECOMBINATION USING ALD SILICON OXIDE SURFACE COATING WITH INTERMITTENT RESTORATION PLASMA
Certain embodiments herein relate to an apparatus used for remote plasma processing. In various embodiments, the apparatus includes a reaction chamber that is conditioned by forming a low recombination material coating on interior chamber surfaces. The low recombination material helps minimize the degree of radical recombination that occurs when the reaction chamber is used to process substrates. During processing on substrates, the low recombination material may become covered by relatively higher recombination material (e.g., as a byproduct of the substrate processing), which results in a decrease in the amount of radicals available to process the substrate over time. The low recombination material coating may be reconditioned through exposure to an oxidizing plasma, which acts to reform the low recombination material coating. The reconditioning process may occur periodically as additional processing occurs on substrates. The apparatus may be configured to cause formation and reconditioning of the low recombination material coating.
MACROSCOPIC TEXTURING FOR ANODIZED AND COATED SURFACES
A consumable part for a plasma processing chamber includes a plasma facing side. An engineered surface is formed into the plasma facing side of the consumable part. A plurality of raised features defines the engineered surface, wherein features are arranged in a predefined pattern, wherein each of the plurality of raised features includes a top region having an outer edge and a sidewall. A base surface of the engineered surface is configured to surround each of the plurality of raised features, such that a corresponding sidewall of a corresponding raised feature extends up at an angle from the base surface to a corresponding top region. The consumable part is configured to be installed in the plasma processing chamber. The consumable part is configured to be exposed to a plasma and byproducts of the plasma.
Apparatus and method for the reduction of impurities in films
A plasma generator is described which employs a partial PBN liner not only to minimise the loss of energetic gas species during film formation but also to reduce boron impurity levels introduced into the growing film relative to the use of a complete PBN liner. The use of such a plasma generator in a film forming apparatus and method of forming a film is also described.
Apparatus for plasma atomic layer deposition
An apparatus for plasma atomic layer deposition includes a tubular, insulating injector adhesion preventive member mountable to a gas-introducing opening section from inside a film forming chamber, a tubular, insulating exhaust adhesion preventive member mountable to an exhaust opening section from inside the film forming chamber, and an insulating film forming chamber adhesion preventive member mountable to an inner wall side of the film forming chamber. The injector adhesion preventive member and the exhaust adhesion preventive member are separated from each of a plate electrode and a counter electrode side, and the film forming chamber adhesion preventive member is disposed on each side of the injector adhesion preventive member and the exhaust adhesion preventive member to be separated from each of the plate electrode and the counter electrode side. The apparatus further includes an upper and lower inert-gas supply port that purges inert gas toward inside the film forming chamber.
Minimizing radical recombination using ALD silicon oxide surface coating with intermittent restoration plasma
Certain embodiments herein relate to an apparatus used for remote plasma processing. In various embodiments, the apparatus includes a reaction chamber that is conditioned by forming a low recombination material coating on interior chamber surfaces. The low recombination material helps minimize the degree of radical recombination that occurs when the reaction chamber is used to process substrates. During processing on substrates, the low recombination material may become covered by relatively higher recombination material (e.g., as a byproduct of the substrate processing), which results in a decrease in the amount of radicals available to process the substrate over time. The low recombination material coating may be reconditioned through exposure to an oxidizing plasma, which acts to reform the low recombination material coating. The reconditioning process may occur periodically as additional processing occurs on substrates. The apparatus may be configured to cause formation and reconditioning of the low recombination material coating.
MINIMIZING RADICAL RECOMBINATION USING ALD SILICON OXIDE SURFACE COATING WITH INTERMITTENT RESTORATION PLASMA
Certain embodiments herein relate to an apparatus used for remote plasma processing. In various embodiments, the apparatus includes a reaction chamber that is conditioned by forming a low recombination material coating on interior chamber surfaces. The low recombination material helps minimize the degree of radical recombination that occurs when the reaction chamber is used to process substrates. During processing on substrates, the low recombination material may become covered by relatively higher recombination material (e.g., as a byproduct of the substrate processing), which results in a decrease in the amount of radicals available to process the substrate over time. The low recombination material coating may be reconditioned through exposure to an oxidizing plasma, which acts to reform the low recombination material coating. The reconditioning process may occur periodically as additional processing occurs on substrates. The apparatus may be configured to cause formation and reconditioning of the low recombination material coating.