Patent ID: 11961710
Assignee: CANON ANELVA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A plasma processing apparatus comprising:
a balun including a first unbalanced terminal, a second unbalanced terminal, a first balanced terminal, and a second balanced terminal;
a grounded vacuum container formed by a conductor;
a first electrode electrically connected to the first balanced terminal;
a second electrode electrically connected to the second balanced terminal;
an impedance matching circuit;
a first power supply connected to the balun via the impedance matching circuit, and configured to supply a high frequency to the first electrode via the impedance matching circuit and the balun;
a low-pass filter; and
a second power supply configured to supply a voltage to the first electrode via the low-pass filter;
wherein the balun includes a first coil configured to connect the first unbalanced terminal and the first balanced terminal, and a second coil configured to connect the second unbalanced terminal and the second balanced terminal.