Plasma Processing Apparatus

A plasma processing apparatus for performing a plasma process on a workpiece inside a processing container by radiating microwaves from an antenna into the processing container through a top plate of the processing container to generate plasma, which includes: a pressing member having grooves formed...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NOGAMI, Takafumi, KANEKO, Hiroshi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A plasma processing apparatus for performing a plasma process on a workpiece inside a processing container by radiating microwaves from an antenna into the processing container through a top plate of the processing container to generate plasma, which includes: a pressing member having grooves formed in a surface facing the top plate, and configured to press the antenna against the top plate; and elastic members respectively disposed in the grooves and deformed while being sandwiched between the pressing member and the antenna, and configured to apply a pressing force to the antenna toward the processing container. The grooves and the elastic members are respectively provided in concentric annular regions each having a center coinciding with a predetermined axis perpendicular to the top plate, and the elastic members are disposed only in a portion of the annular regions.