Patent ID: 6899787

Claim:
A plasma processing apparatus comprising: at least one plasma processing unit comprising: a plasma processing chamber having an electrode for plasma excitation; an RF generator for feeding RF power to the electrode; an RF supplier; an RF feeder; and a matching circuit for performing impedance matching between the plasma processing chamber and the RF generator, the matching circuit having an input terminal and an output terminal, the input terminal being connected to the RF generator through the RF supplier, the output terminal being connected to the electrode through the RF feeder; wherein the average density per unit volume of the RF power that is supplied from the RF generator to the electrode lowers from the output terminal side to the electrode side in the RF feeder, wherein the RF feeder comprises a plurality of feeder elements, wherein the plurality of feeder elements are mutually connected with at least one connector element at one end, and are mutually connected with the electrode at another end, wherein the connector element is a plate having a shape analogous to that of the electrode, wherein the plurality of feeder elements are substantially parallel with each other, and wherein the plurality of feeder elements are substantially perpendicular to the electrode.