Patent ID: 8552651
Filing Date: 2013-10-08
Classification: F02P,H05H

Abstract:
1. A high frequency plasma generation system comprising: a discharge circuit including at least a pair of discharge electrodes; a frequency generator for generating a fundamental wave of a predetermined frequency; a power booster circuit for boosting electric power of a power source by the predetermined frequency, so that a high frequency plasma is generated by application of a high frequency voltage between the discharge electrodes; and a magnetic resonance section provided between the power booster circuit and the discharge circuit as a frequency multiplier section for extracting a multiplied frequency wave, which corresponds to higher harmonic wave components of the fundamental wave and has a multiplied frequency as high as two or more integer times of the predetermined frequency of the fundamental wave, wherein the magnetic resonance section includes a first resonance coil, a first capacitor connected to the first resonance coil, a second resonance coil and a second capacitor connected to the second resonance coil, the first resonance coil and the second resonance coil being provided to oppose each other with a predetermined spacing therebetween, wherein an inductance of the first resonance coil, an inductance of the second resonance coil, a capacitance of the first capacitor, a capacitance of the second capacitor and the multiplied frequency of the multiplied frequency wave are determined such that a resonance frequency of the power booster circuit and the first resonance coil is matched to equal the multiplied frequency of the multiplied frequency wave, and matched to equal a resonance frequency of the discharge circuit and the second resonance coil when the discharge electrodes are in a predetermined pressure range, outside of which the resonance frequency of the discharge circuit and the second resonance coil varies.