Patent ID: 6758950
Filing Date: 2004-07-06
Classification: C23C,H01J

Abstract:
An apparatus, comprising:a sputtering chamber including a sputtering target with a front target surface, and a magnetron behind the sputtering target that provides a magnetic field at the front target surface along a generally round path that includes a path indentation; a shutter spaced apart from the front target surface by a shutter spacing; a substrate aligned with a substrate central region in front of the front target surface and spaced apart from the front target surface by a selected spacing that is greater than the shutter spacing; deposited layers on the substrate; the substrate central region having a diameter defined by a selected uniformity of a sputtered thickness of the deposited layers on the substrate; and the path indentation being set to a path indentation depth and the selected spacing being set to an optimum value to maximize the diameter for the selected uniformity of the sputtered thickness.