Methods and arrangement for creating a highly efficient downstream microwave plasma system
First Claim
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1. A plasma system comprising:
- a microwave waveguide assembly; and
a plasma tube assembly intersecting said microwave waveguide assembly, said plasma tube assembly having a plasma-sustaining region defined by an upstream plurality of plasma traps and a downstream plurality of plasma traps, wherein a first plasma trap among at least one of said upstream plurality of plasma traps and said downstream plurality of plasma traps includes a first corrugated surface, and a second plasma trap among at least one of said upstream plurality of plasma traps and said downstream plurali of plasma traps includes a second corrugated surface, said second corrugated surface facing said first corrugated surface.
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Abstract
A plasma generation arrangement configured to provide plasma downstream to a plasma processing chamber. The arrangement includes a microwave waveguide assembly having a longitudinal axis parallel with a first axis. The arrangement also includes a plasma tube assembly intersecting the microwave waveguide assembly. The plasma tube assembly has a longitudinal axis parallel with a second axis that is substantially orthogonal with the first axis. The plasma tube assembly also has a plasma-sustaining region defined by an upstream plurality of plasma traps and a downstream plurality of plasma traps.
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Citations
53 Claims
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1. A plasma system comprising:
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a microwave waveguide assembly; and
a plasma tube assembly intersecting said microwave waveguide assembly, said plasma tube assembly having a plasma-sustaining region defined by an upstream plurality of plasma traps and a downstream plurality of plasma traps, wherein a first plasma trap among at least one of said upstream plurality of plasma traps and said downstream plurality of plasma traps includes a first corrugated surface, and a second plasma trap among at least one of said upstream plurality of plasma traps and said downstream plurali of plasma traps includes a second corrugated surface, said second corrugated surface facing said first corrugated surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A plasma system comprising:
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a microwave waveguide assembly; and
a plasma tube assembly intersecting said microwave waveguide assembly, said plasma tube assembly having a plasma-sustaining region defined by an upstream plasma trap set and downstream plasma trap set disposed downstream relative to said upstream plasma trap set, wherein a first plasma trap among at least one of said upstream plasma trap set and said downstream plasma trap set includes a first set of corrugated peaks, and a second plasma trap among at least one of said upstream plasma trap set and said downstream plasma trap set includes a second set of corrugated peaks, said second set of corrugated peaks being aligned with said first set of corrugated peaks. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A plasma system comprising:
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a microwave waveguide assembly; and
a plasma tube assembly intersecting said microwave waveguide assembly, said plasma tube assembly having a plasma-sustaining region defined by an upstream plurality of plasma traps and a downstream plurality of plasma traps, wherein a first plasma trap among at least one of said upstream plurality of plasma traps and said downstream plurality of plasma traps includes a first set of corrugated peaks, and a second plasma trap among at least one of said upstream plurality of plasma traps and downstream plurality of plasma traps includes a second set of corrugated peaks, said second set of corrugated peaks being offset relative to said first set of corrugated peaks. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification