Patent ID: 11862489
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A substrate processing apparatus comprising:
a rotary stage configured to hold a substrate;
a rotary driver configured to rotate the rotary stage around a rotation axis;
at least one electric heater installed in the rotary stage;
at least one power receiving coil installed in the rotary stage and electrically connected to the at least one electric heater;
at least one power feeding coil installed to face the at least one power receiving coil in a direction of the rotation axis with a gap between the at least one power feeding coil and the at least one power receiving coil;
a radio-frequency power supply unit configured to supply radio-frequency power to the at least one power feeding coil;
at least one non-contact-type temperature sensor configured to detect a surface temperature of the rotary stage or a surface temperature of the substrate held on the rotary stage; and
a temperature controller configured to control radio-frequency power output from the radio-frequency power supply unit to the at least one power feeding coil based on the surface temperature detected by the at least one non-contact-type temperature sensor such that a temperature of the rotary stage or a temperature of the substrate reaches a target value.