Patent ID: 6632324
Filing Date: 2003-10-14
Classification: H01J

Abstract:
A system for processing a substrate, said system comprising:a vacuum chamber in which a plasma is generated; a first dielectric window on a surface of said chamber, said dielectric window having a first side and a second side facing outside and inside of said chamber, respectively; an rf generator; a sensor to monitor a process condition as said substrate is being processed in said chamber and transmit a signal in response to said monitored process condition; a controller to receive said signal from said sensor and adjust at least one process parameter; and a removable plasma source located external to said vacuum chamber, said plasma source electrically coupled to said rf generator and operative to generate a plasma, said plasma source including an antenna provided over said first side of said first dielectric window, said antenna having a plurality of spiral portions extending in a substantially orthogonal direction from said dielectric window.