Plasma etching apparatus

Disclosed is a plasma etching apparatus which includes: a base formed of a metal that has a lower expansion coefficient than aluminum; an electrostatic chuck disposed on a mounting surface of the base and configured to mount an object to be processed; a bonding layer which bonds the base to the elec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Hayashi, Daisuke, Aoto, Tadashi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Disclosed is a plasma etching apparatus which includes: a base formed of a metal that has a lower expansion coefficient than aluminum; an electrostatic chuck disposed on a mounting surface of the base and configured to mount an object to be processed; a bonding layer which bonds the base to the electrostatic chuck; and a heater provided within the electrostatic chuck. In the plasma etching apparatus, the base is provided with a metal portion that is formed through a cold spraying by using a metal that has a higher thermal conductivity than the metal for forming the base.