Patent ID: 6589887
Filing Date: 2003-07-08
Classification: C23C,H01L

Abstract:
A method for forming a metal-derived layer on at least a portion of a substrate, the method comprising:heating the substrate; and exposing the substrate to a metal vapor under a set of conditions in which the metal vapor reacts with at least a dielectric portion of the surface of the substrate to form the metal-derived layer of about 10 Ã¥ to 200 Ã¥ thick thereon, said metal-derived layer being non-volatile under the set of conditions and comprising a reaction product of said metal vapor and said dielectric; wherein the set of conditions includes a flux of metal and a substrate temperature such that the evaporation rate of deposited metal from the wafer substrate is equal to or greater than the deposition rate of the metal vapor on the wafer substrate.