Plasma processing apparatus and plasma processing method
Provided is a plasma processing apparatus, which includes a table unit installed within a processing vessel and configured to receive a substrate thereon, a gas supply unit configured to supply a process gas into the processing vessel, a plasma generating unit configured to turn the process gas to p...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | Provided is a plasma processing apparatus, which includes a table unit installed within a processing vessel and configured to receive a substrate thereon, a gas supply unit configured to supply a process gas into the processing vessel, a plasma generating unit configured to turn the process gas to plasma, a magnetic field forming mechanism installed at a lateral side of the table unit and configured to form magnetic fields in a processing atmosphere in order to move electrons existing in the plasma of the process gas along a surface of the substrate; and an exhaust mechanism configured to exhaust gas from the interior of the processing vessel. The magnetic fields are opened at at-least one point in a peripheral edge portion of the substrate such that a loop of magnetic flux lines surrounding the peripheral edge portion of the substrate is not formed. |
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