Patent ID: 6576546
Filing Date: 2003-06-10
Classification: H01L

Abstract:
A method of forming a conductive barrier layer on a dielectric layer, said meted comprising the steps of:providing the dielectric layer having a top surface, a bottom surface, and an opening extending from the top surface to the bottom surface, and including a conductive plug having a top surface substantially coplanar with said top surface of said dielectric layer; subjecting said top surface of said dielectric layer and said top surface of said conductive plug to a gas selected from the group consisting of: argon, nitrogen, hydrogen, CH4, and any combination thereof, said gas being incorporated into a high-temperature ambient or a plasma; and depositing said conductive barrier layer on said top surface of said dielectric layer and said top surface of said conductive plug after said step of subjecting said top surface of said dielectric layer and said top surface of said conductive plug to said gas incorporated into said high-temperature ambient or said plasma.