Patent ID: 6020686
Filing Date: 2000-02-01
Classification: H01J

Abstract:
A capacitively and inductively coupled RF plasma reactor for processing a semiconductor wafer inside a vacuum chamber of said reactor, comprising:a pair of parallel capacitive electrodes facing each other across at least a portion of the chamber;an inductive coil wound around a portion of the chamber; andat least one RF power source providing RF power to each of the capacitive electrodes for capacitively coupling RF power into the chamber and to said inductive coil for inductively coupling RF power into the chamber in accordance with a certain RF phase relationship between at least two of (a) a first one of the pair of electrodes, (b) a second one of the pair of electrodes and (c) said inductive coil, during processing of the semiconductor wafer for ease of plasma ignition and precise control of plasma ion energy and process reproducibility.