Patent ID: 11908664
Assignee: TOKYO ELECTRON LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A plasma processing apparatus comprising:
a chamber body that provides a chamber;
a stage configured to support a target object in the chamber, the stage including a lower electrode, an electrostatic chuck provided on the lower electrode, a plurality of heaters, and a plurality of terminals electrically connected to the plurality of heaters;
a high frequency power supply provided outside the chamber body and configured to generate a high frequency power to be supplied to the lower electrode;
a conductor pipe configured to electrically connect the high frequency power supply and the lower electrode, and wherein the conductor pipe is electrically connected to the high frequency power supply;
a plurality of power supply lines configured to supply power from a heater controller to the plurality of heaters; and
a filter device which includes a plurality of filters, which partially forms the plurality of power supply lines, the plurality of filters provided outside the chamber body and configured to prevent inflow of high frequency power from the plurality of heaters to the heater controller,
wherein the plurality of power supply lines includes a plurality of wirings respectively connecting the plurality of terminals and the plurality of filters,
wherein the plurality of wirings extends to outside of the chamber body through an inner bore of the conductor pipe,
wherein the stage further includes a conductive member provided below the lower electrode,
wherein the conductor pipe has a first pipe, a second pipe, and a third pipe, each of the first, second and third pipes made of a conductor,
wherein the second pipe is connected to the conductive member,
wherein the third pipe is electrically connected to the high frequency power supply,
wherein a lower end portion of the first pipe is fitted into an inner bore of the third pipe,
wherein an upper end portion of the first pipe is fitted into an inner bore of the second pipe, and
wherein the third pipe is vertically below the second pipe.