Patent ID: 7465681
Filing Date: 2008-12-16
Classification: C23C,G02B

Abstract:
1. A method of depositing a thin film of a selected material on the surface of a substrate using plasma ion assisted deposition, the method having the steps of: providing a vacuum chamber and within said vacuum chamber: providing a substrate on which a coating is to be deposited; providing at least one selected coating material source, or a mixture of coating materials source, and vaporizing said material(s) using an e-beam to provide a coating material vapor flux, said flux passing from said material source through a reversed mask to said substrate; providing plasma ions from a plasma source; rotating said substrate at a selected rotation frequency f; and depositing said coating material on said substrate as a coating film and bombarding said substrate and said film with said plasma ions before and during said material deposition process: wherein said flux is delivered to said substrate at an angle φ that is ≦20°.