Vacuum processing chamber and method of processing a semiconductor work piece
View Patent ↗A vacuum processing chamber and method of using a vacuum processing chamber are described and which includes a chamber defined by a chamber body, and wherein the chamber body defines an internal cavity; first and second electrodes are mounted in the internal cavity as defined by the chamber body; an RF generator is provided, and which produces single or multiple frequencies and which is electrically coupled to at least one of the first or second electrodes, and which are operable, when energized, to produce a plasma within the internal cavity of the chamber body; and an adjustable component borne by the chamber body, and which is fabricated, at least in part, from a dielectric material, and which selectively adjusts the equivalent dielectric constant which exists between the chamber body and the first electrode.
1. A vacuum processing chamber, comprising: a chamber defined by a chamber body, and wherein the chamber body further defines an internal cavity; first and second electrodes mounted on the chamber body; an RF generator which produces single or multiple frequencies and which is electrically coupled to at least one of the first or second electrodes, and which is further operable, when energized, to produce a plasma within the internal cavity of the chamber body; and an adjustable component borne by the chamber body, and which is fabricated, at least in part, from a dielectric material, and which is operable to selectively adjusts the equivalent dielectric constant which exists between the chamber body and the first electrode, wherein the adjustable component further defines a slot which receives a material which adjusts the equivalent dielectric constant and wherein the material received in the slot comprises a liquid.
2. A vacuum processing chamber as claimed in claim 1 , and wherein the adjustable component is fixed relative to the chamber body.
3. A vacuum processing chamber as claimed in claim 1 , and wherein the adjustable component is moveable relative the chamber body.
4. A vacuum processing chamber as claimed in claim 1 , and wherein the chamber body has an inwardly facing surface, and wherein the adjustable component is located between the inwardly facing surface of the chamber body, and the first electrode.
5. A vacuum processing chamber as claimed in claim 1 , and wherein the chamber body has a top surface, and a sidewall having an inwardly facing surface, and wherein the adjustable component is located, at least in part, between the top surface of the chamber body, and the first electrode, and between the inwardly facing surface of the chamber body sidewall, and the first electrode.
6. A vacuum processing chamber as claimed in claim 1 , and wherein the adjustable component comprises a hollow ring.
7. A vacuum processing chamber as claimed in claim 4 , and wherein the adjustable component can move in a vertical direction between the inwardly facing surface of the chamber body and the first electrode to adjust the equivalent dielectric constant.
8. A vacuum processing chamber as claimed in claim 1 , and wherein the chamber body is electrically grounded.
9. A vacuum processing chamber, comprising: a chamber defined by a chamber body, and wherein the chamber body further defines an internal cavity; first and second electrodes mounted on the chamber body; an RF generator which produces single or multiple frequencies and which is electrically coupled to at least one of the first or second electrodes, and which is further operable, when energized, to produce a plasma within the internal cavity of the chamber body; a ring which is fabricated, at least in part of a dielectric material, and which further defines a slot, and wherein the ring is positioned between the first electrode and the chamber body; and a liquid received in the slot which is defined by the ring.
10. A vacuum processing chamber as claimed in claim 9 , and wherein the dielectric material comprises porcelain.
11. A vacuum processing chamber as claimed in claim 9 , and wherein the liquid comprises, at least in part, water.
12. A vacuum processing chamber as claimed in claim 9 , and wherein the ring extends, at least in part, along the chamber body, and has a top surface which is positioned in a location which is outside of the internal cavity.
13. A vacuum processing chamber as claimed in claim 9 and wherein the ring is stationary or moveable.