HALOGEN-ASSISTED CHEMICAL VAPOR DEPOSITION OF DIAMOND

摘要

2081778 9118128 PCTABS00008 The present invention is directed to a method for depositing diamond films and particles on a variety of substrates by flowing a gas or gas mixture capable of supplying (1) carbon, (2) hydrogen and (3) a halogen through a reactor (56) over the substrate (72) material. The reactant gases may be premixed with an inert gas in order to keep the overall gas mixture composition low in volume percent of carbon and rich in hydrogen. Pretreatment of the reactant gases to a high energy state is not required as it is in most prior art processes for chemical vapor deposition of diamond. Since pre-treatment is not required, the process may be applied to substrates of virtually any desired size, shape or configuration.