Patent ID: 9136095
Filing Date: 2015-09-15
Classification: H01J,H01L

Abstract:
1. A method for controlling a plasma processing apparatus including a plasma processing chamber in which an object to be processed is plasma-processed, a first electrode which emits a radio frequency into the plasma processing chamber, a first radio frequency power supply which supplies radio frequency power to the first electrode, a second electrode arranged to face the first electrode and on which the object to be processed is placed, a second radio frequency power supply which supplies radio frequency power to the second electrode, the method comprising the steps of: detecting a radio frequency current flowing from the second electrode toward the first electrode or a radio frequency voltage on a path in which the radio frequency current flows; and controlling a reactance for controlling the detected radio frequency current or the detected radio frequency voltage so that the detected radio frequency current or the detected radio frequency voltage takes a value of the resonance point.