Patent ID: 11862431
Assignee: NISSIN ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC H

Claim 0:
1. A plasma control system, comprising:
a high-frequency power supply;
an antenna group, comprising a plurality of antennas connected to the high-frequency power supply;
a plurality of reactance variable elements, connected to a feeding side and a ground side of the plurality of antennas;
a current detection mechanism, detecting a current flowing through the feeding side and the ground side of the plurality of antennas;
a uniformity calculation unit, calculating a uniformity index value of the current flowing through the plurality of antennas based on a current value detected by the current detection mechanism; and
a reactance changing unit, changing the reactances of the plurality of reactance variable elements in a predetermined order so that the uniformity index value calculated by the uniformity calculation unit approaches a predetermined set value.