Patent ID: 6310577
Filing Date: 2001-10-30
Classification: H01J,H05H

Abstract:
A plasma processing system comprising:a vacuum chamber;a gas disposed within said vacuum chamber;a dielectric disposed around said vacuum chamber;an antenna mounted around said dielectric to radiate electromagnetic energy into said gas, said antenna comprising:a common input node;a common output node;at least one set of semi-circular half-turn coils, each set of coils forming a circular coil and each set of coils being coaxial with the other sets of coils and connected in parallel therewith via said common input node and said common output node, whereby current flow is enabled through each half-turn of each coil from said common input node to said common output node effective to radiate electromagnetic energy into said gas; anda magnet mounted below the coils in parallel with a longitudinal axis thereof andmeans for applying power to said antenna.