Patent ID: 9437399
Filing Date: 2016-09-06
CPC Classification: H01F,H01J,H05H

Claim Text:
1. Plasma equipment comprising: a power supply that supplies a RF power; a chamber configured to generate plasma and process a processing target by using the plasma; an antenna coil that is provided on a top surface of the chamber, and is directly connected to the power supply to receive the RF power; a resonance coil that is provided to be electrically insulated or separated from the antenna coil and provided to be not connected to the antenna coil and the power supply; and a variable capacitor that is connected to the resonance coil in parallel so as to allow the resonance coil to cause an electromagnetic inductive resonance, wherein the resonance coil receives electromagnetic energy from the antenna coil in a wireless power transmitting manner by the electromagnetic inductive resonance to allow a current to flow, and the plasma is generated within the chamber, and the current flowing in the resonance coil that wirelessly receives the power from the antenna coil to cause the resonance may be varied by adjusting a size of the variable capacitor, and the plasma generated within the chamber can be controlled by adjusting the size of the variable capacitor.