Compact independent pressure control and vacuum isolation for a turbomolecular pumped plasma reaction chamber

A method and apparatus for use in conjunction with a plasma reaction chamber provide both throttling functionality and independent vacuum isolation for a turbomolecular pump. A throttle valve provides for precise reaction chamber pressure regulation, and a gate valve prevents extended exposure of th...

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Hauptverfasser: MAK, STEVE S. Y, HOLLAND, JOHN, BARNES, MICHAEL, LEAHEY, PATRICK, MOHN, JONATHAN D
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and apparatus for use in conjunction with a plasma reaction chamber provide both throttling functionality and independent vacuum isolation for a turbomolecular pump. A throttle valve provides for precise reaction chamber pressure regulation, and a gate valve prevents extended exposure of the turbomolecular pump to atmospheric conditions during cleaning or other maintenance operations. The throttle valve and the gate valve may be actuated independently.