Patent ID: 6745096
Filing Date: 2004-06-01
Classification: H01J

Abstract:
A maintenance system for a plasma processing apparatus, which is provided with a vacuum processing chamber, a vacuum evacuation section, a plasma generating gas supply section, a plasma generating section, and a specimen stage on which a wafer to be processed in the vacuum processing chamber is placed, comprising:an operation circuit for performing a sequence for a restoring operation after maintenance as to each of a plurality of inspected items; a storage section for storing measured data; a plurality of detection sensors for collecting measured data values from the plasma processing apparatus during a restoring operation; an I/O section for setting criteria; and a comparison/decision circuit for comparing the set criteria with the measured data values obtained during the restoring operation and stored in the storage section as to each of the plurality of inspected items, wherein the operation circuit determines, when the measured data values obtained during the restoring operation as to at least one of the plurality of inspected items is within given criteria, that the restoring operation of the at least one of the plurality of inspected items is appropriate, to thereby perform the restoring operation of another one of the plurality of inspected items.