Temperature control of plasma density probe

An apparatus for measuring a plasma parameter in a plasma processing reactor comprises a probe including a dielectric tube, a coaxial cable inserted in the dielectric tube, the coaxial cable having an open antenna tip, and a plurality of spacers disposed between the coaxial cable and the dielectric...

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Bibliographische Detailangaben
Hauptverfasser:	ANTLEY SAMUEL S, QUON BILL H, MITROVIC ANDREJ
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS
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Beschreibung
Zusammenfassung:	An apparatus for measuring a plasma parameter in a plasma processing reactor comprises a probe including a dielectric tube, a coaxial cable inserted in the dielectric tube, the coaxial cable having an open antenna tip, and a plurality of spacers disposed between the coaxial cable and the dielectric tube. The plurality of spacers define a plurality of ducts through which a cooling fluid is adapted to be circulated to control a temperature of the probe.