Patent ID: 7514353

Claim:
A method for depositing a material on a contact level feature formed on a substrate, comprising: providing a substrate that has one or more contact level features comprising a doped silicon containing region; depositing a first metal layer on the doped silicon containing region by an electroless deposition process; forming an exposed silicide layer from the first metal layer; depositing a barrier layer over a surface of the exposed silicide layer, wherein depositing the barrier layer comprises: depositing a second metal layer on the exposed silicide layer; and depositing a third metal layer over the second metal layer, wherein the third metal layer contains a metal selected from a group consisting of ruthenium (Ru), cobalt (Co), nickel (Ni), rhodium (Rh), iridium (Ir), palladium (Pd) and platinum (Pt); and filling the contact level feature with a metal containing layer.