Externally excited torroidal plasma source
First Claim
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1. A plasma reactor for processing a workpiece comprising:
- a chamber adapted to accept processing gases in an evacuated environment including a workpiece support, a hollow conduit defining a wall of the chamber, and having respective ends opening adjacent opposite sides of said workpiece support, and a chamber wall portion in facing relationship to the workpiece support and defining a workpiece processing zone therebetween, said processing zone and the interior of said conduit forming a torroidal interior path;
an RF energy applicator irradiating gas within said chamber to maintain a plasma within the torroidal interior path.
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Abstract
A plasma reactor for processing a workpiece includes a chamber adapted to accept processing gases in an evacuated environment including a workpiece support, a hollow conduit defining a wall of the chamber, and having respective ends opening adjacent opposite sides of the workpiece support, and a chamber wall portion in facing relationship to the workpiece support and defining a workpiece processing zone therebetween, the processing zone and the interior of the conduit forming a torroidal interior path, and an RF energy applicator irradiating gas within the chamber to maintain a plasma within the torroidal interior path.
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Citations
31 Claims
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1. A plasma reactor for processing a workpiece comprising:
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a chamber adapted to accept processing gases in an evacuated environment including a workpiece support, a hollow conduit defining a wall of the chamber, and having respective ends opening adjacent opposite sides of said workpiece support, and a chamber wall portion in facing relationship to the workpiece support and defining a workpiece processing zone therebetween, said processing zone and the interior of said conduit forming a torroidal interior path;
an RF energy applicator irradiating gas within said chamber to maintain a plasma within the torroidal interior path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification