Patent ID: 6458251
Filing Date: 2002-10-01
Classification: C23C,H01J,H01L

Abstract:
A method for depositing a material on a substrate, comprising:(a) providing a plasma in a processing chamber at a first chamber pressure; (b) providing a signal to a coil disposed in the processing chamber; (c) sputtering the material from a target disposed in the processing chamber; (d) maintaining a first chamber pressure for a first period of time and depositing the material onto the substrate at the first chamber pressure; (e) modulating the chamber pressure in the processing chamber between at least the first chamber pressure and a second chamber pressure; (f) maintaining the second chamber pressure for a second period of time and depositing the material onto the substrate at the second chamber pressure, wherein the first chamber pressure is higher than the second chamber pressure; and (g) repeating (d), (e), and (f) during multiple steps of deposition to form a layer on the substrate.