Patent ID: 6538388
Filing Date: 2003-03-25
Classification: H01J,H05H

Abstract:
A plasma processing apparatus comprising:a plasma processing chamber having a plasma excitation electrode, a susceptor electrode, and a radiofrequency feeder, the plasma excitation electrode and the susceptor electrode generating a plasma in cooperation with each other; a radiofrequency generator for supplying a radiofrequency voltage to the plasma excitation electrode; and a matching circuit having an input terminal and an output terminal, the input terminal being connected to the radiofrequency generator and the output terminal being connected to an input end of the radiofrequency feeder so as to achieve impedance matching between the plasma processing chamber and the radiofrequency generator, wherein 26 times a plasma electrode capacitance Ce between the plasma excitation electrode and the susceptor electrode is greater than a loss capacitance CX between the plasma excitation electrode and ground potential positions which are DC-grounded.