| 摘要 |
A method and system for cooling an electrostatically shielded radio frequency (ESRF) plasma source (100). The method and system utilize an electrostatic shield (300, 360), having plural ribs (303, 330), which vaporizes a coolant and sprays the vapor against a process tube (400) or a bias shield (300, 360). The vapor is either sprayed underneath the ribs or between adjacent ribs. This design avoids using baths of liquid coolants that can absorb gases which lead to arcing between induction coils.
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