Patent ID: 9646867
Date: 2017-05-09
CPC Classifications: H01J,H01L

Claim:
1. A plasma processing apparatus for exciting a processing gas by using a microwave, comprising: a processing chamber; a mounting table provided in the processing chamber, the mounting table including a lower electrode and an electrostatic chuck disposed on the lower electrode; a high frequency power supply electrically connected to the lower electrode; a heater provided in the electrostatic chuck; a heater power supply configured to generate a power to be supplied to the heater; a filter unit including a filter connected to the heater power supply; a rod-shaped power feeder which connects the heater power supply and the heater via the filter; an insulating tubular portion having an inner hole through which the rod-shaped power feeder extends; and a conductive choke portion serving to suppress a microwave propagating through the insulating tubular portion; wherein the conductive choke portion includes a first portion extending from the rod-shaped power feeder in a direction intersecting with a longitudinal direction of the rod-shaped power feeder and a cylindrical second portion extending, between the insulating tubular portion and the rod-shaped power feeder, from a peripheral portion of the first portion.