Patent ID: 6638862
Filing Date: 2003-10-28
Classification: C23C,H01L

Abstract:
A method of depositing metal on a substrate in a deposition chamber, comprising the steps of:(a) preparing a surface of the substrate for chemical reactivity with a first precursor; (b) depositing a first layer of metal by flowing a first precursor bearing the metal over the surface of the substrate; (c) depositing one or more subsequent layers of metal on top of said first layer to build a metal film by repeatedly (i) flowing one or more radicalized species over the surface of the metal layer upon which said one or more subsequent layers of metal is to be deposited to render the surface of the metal layer chemically reactive to one or more precursors; and (ii) then flowing over the surface of the metal layer a precursor which is chemically reactive to the surface of the metal layer.