Method and Apparatus for a Large Area Inductive Plasma Source
First Claim
1. A plasma source for providing dissociated gas to semiconductor process chamber, the plasma source comprising:
- a plasma chamber having at least one gas inlet, at least one chamber wall for containing the gas, and at least one outlet into the semiconductor process chamber;
a plurality of magnetic cores disposed relative to the plasma chamber such that the plasma chamber passes through each of the plurality of magnetic cores,the plasma chamber generating a toroidal plasma along a plane extending through the plasma chamber and which is at least substantially parallel to a top surface of a sample holder disposed within the semiconductor process chamber; and
a primary winding coupled to the plurality of magnetic cores.
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Accused Products
Abstract
A plasma source for providing dissociated gas to semiconductor process chamber is provided. The plasma chamber can have at least one gas inlet and at least one chamber wall for containing the gas, a plurality of magnetic cores disposed relative to the plasma chamber such that the plasma chamber passes through each of the plurality of magnetic cores. A primary winding can be coupled to the plurality of magnetic cores. The plasma chamber can generate a toroidal plasma along a plane extending through the plasma chamber and which is at least substantially parallel to a top surface of a sample holder disposed within the semiconductor process chamber.
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Citations
33 Claims
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1. A plasma source for providing dissociated gas to semiconductor process chamber, the plasma source comprising:
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a plasma chamber having at least one gas inlet, at least one chamber wall for containing the gas, and at least one outlet into the semiconductor process chamber; a plurality of magnetic cores disposed relative to the plasma chamber such that the plasma chamber passes through each of the plurality of magnetic cores, the plasma chamber generating a toroidal plasma along a plane extending through the plasma chamber and which is at least substantially parallel to a top surface of a sample holder disposed within the semiconductor process chamber; and a primary winding coupled to the plurality of magnetic cores. - View Dependent Claims (2, 3, 4, 9)
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5. A method for dissociating gas within a plasma source for use in a semiconductor process chamber, the method comprising:
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flowing via at least one inlet, a gas into a toroidal plasma chamber having a primary winding coupled to the toroidal plasma chamber and a plurality of magnetic cores oriented such that the toroidal plasma chamber passes through each of the plurality of magnetic cores; generating a plasma along a plane extending through the toroidal plasma chamber, such plasma being at least substantially parallel to a top surface of a sample holder disposed within the semiconductor process chamber; and directing the plasma, via at least one outlet in the toroidal plasma chamber, in an orthogonal direction relative to the plane toward the top surface of the sample holder. - View Dependent Claims (6, 7, 8, 10)
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11. A plasma source comprising:
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a toroidal plasma chamber; a primary winding around an exterior of the toroidal plasma chamber; and a plurality of magnetic cores, wherein the ring plasma chamber passes through each of the plurality of magnetic cores. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A plasma source comprising:
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a plurality of toroidal plasma chambers; a plurality of primary windings, wherein each one of the plurality of primary windings is wrapped around an exterior one of the plurality of the toroidal plasma chambers; and a plurality of magnetic cores, wherein each one of the plurality of the toroidal plasma chamber passes through a respective portion of the plurality of magnetic cores. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A plasma source comprising:
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a toroidal plasma chamber; a primary winding around an exterior of the toroidal plasma chamber; a plurality of magnetic cores, wherein the toroidal plasma chamber passes through each of the plurality of magnetic cores; and a plurality of plasma chamber outlets coupling the toroidal plasma chamber to a process chamber, each one of the plurality plasma chamber outlets having a respective plasma restriction. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification