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

Claim 11:
12. 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; and
a ferrite disposed between a power feeding coil arrangement region in which the at least one power feeding coil is arranged and an electric motor constituting the rotary driver.