Patent ID: 6197165
Filing Date: 2001-03-06
Classification: C23C,H01J

Abstract:
An ionized physical vapor deposition apparatus comprising:a vacuum chamber having a chamber wall surrounding a vacuum processing space inside of the chamber;a source of coating material from which coating material is supplied to the processing space, the source including a ring-shaped component having a central opening and at least one surface in communication with the vacuum processing space and a central component situated in the central opening and concentric with the ring-shaped component;the chamber wall having a dielectric window therein at the central opening of the ring-shaped component of the source;a substrate support inside of the chamber opposite the processing space from the source;an RF energy source outside of the chamber;a coil outside of the chamber adjacent the window and connected to the RF energy source to inductively couple energy through the window and into the chamber to form an inductively coupled plasma in the processing space that is sufficiently dense to ionize coating material moving from the source through the processing space; andshield structure inside of the chamber between the window and the processing space, the shield being configured to permit the effective coupling of RF energy from the coil into the processing space and to physically shield the window from coating material from the processing space.