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

Claim 3:
4. The substrate processing apparatus of claim 1, wherein the first power receiving coil and the second power receiving coil are coils respectively arranged in first and second portions, which are located at different circumferential positions in a ring-shaped power receiving coil arrangement region having a first distance from the rotation axis,
the first power feeding coil and the second power feeding coil are coils respectively arranged in third and fourth portions, which are located at different circumferential positions in a ring-shaped power feeding coil arrangement region having the first distance from the rotation axis, and
depending on a rotation phase of the rotary stage, a state in which the first power receiving coil and the first power feeding coil face each other and a state in which the first power receiving coil and the first power feeding coil do not face each other are switched, and a state in which the second power receiving coil and the second power feeding coil face each other and a state in which the second power receiving coil and the second power feeding coil do not face each other are switched.