Semiconductor processing using an efficiently coupled gas source
First Claim
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1. A gas source for use with a semiconductor processing chamber, comprising:
- a primary winding having at least one turn surrounding a central axis; and
a toroidal shaped plasma generation chamber, the chamber comprising;
a passageway surrounding the central axis, a gas inlet fluidly coupled to the passageway, and a gas outlet fluidly coupled to the passageway;
wherein a plasma generated in said passageway of the toroidal shaped plasma chamber functions as a secondary winding within the chamber and surrounding said central axis, the secondary winding being inductively coupled to the primary winding.
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Abstract
A semiconductor processing system includes a processing chamber system and an activated gas source coupled to the chamber system. The gas source includes a primary winding coupled to an RF generator and a secondary winding effectively formed by the conductance of a plasma filled passageway in a toroidal chamber. The primary winding and the secondary winding are coaxially aligned to provide a suitable inductive coupling between the windings.
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6 Claims
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1. A gas source for use with a semiconductor processing chamber, comprising:
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a primary winding having at least one turn surrounding a central axis; and
a toroidal shaped plasma generation chamber, the chamber comprising;
a passageway surrounding the central axis, a gas inlet fluidly coupled to the passageway, and a gas outlet fluidly coupled to the passageway;
wherein a plasma generated in said passageway of the toroidal shaped plasma chamber functions as a secondary winding within the chamber and surrounding said central axis, the secondary winding being inductively coupled to the primary winding. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification