Plasma source with reliable ignition

The invention relates to a plasma source whose plasma is ignited by an electric voltage. To be able to carry out the ignition at relatively low voltages, a plate (5) provided with holes (13, 14) is provided beneath a plasma volume (17), which is disposed above a wall (21) of a plasma chamber (3). Th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WEINRICH WERNER, BECKMANN RUDOLF, FUHR MARKUS, ZULTZKE WALTER
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The invention relates to a plasma source whose plasma is ignited by an electric voltage. To be able to carry out the ignition at relatively low voltages, a plate (5) provided with holes (13, 14) is provided beneath a plasma volume (17), which is disposed above a wall (21) of a plasma chamber (3). Through this plate (5) an ignition volume (16) is formed beneath the plasma volume (17) with a higher pressure than in the plasma volume (17), in which the plasma ignites first. The ignition is subsequently propagated through the holes of the plate (5) into the plasma volume (17).