Patent ID: 6660340
Filing Date: 2003-12-09
Classification: B82Y,C23C

Abstract:
A method for adhering a diamond-like carbon film to a surface of a substrate, comprising steps of:selecting a carbon atom concentration for said substrate adjacent to said surface greater than 5Ã—1018 carbon atoms per cubic centimeter; selecting a thickness of the region adjacent to said surface extending from said surface to depth of up to 50 Angstroms for the selected carbon atom concentration, selecting a carbon ion implantation energy; determining a carbon ion implantation dose for implanting carbon ions into said thickness of the region of said substrate adjacent to said surface; implanting said region of said substrate adjacent to said surface with said carbon ions by an ion implantation process of ionizing a source of carbon and driving the carbon ions into the region at the selected energy and determined dose to form said selected carbon atom concentration in the selected thickness of said region adjacent to said surface; and depositing a source carbon on the ion implanted surface of the substrate to form a diamond-like carbon film on said ion implanted surface of said substrate of high carbon purity.