Patent ID: 7732325

Claim:
A method for depositing materials on a substrate, comprising: depositing a titanium layer on a substrate; depositing a conformal titanium nitride layer comprising a plurality of titanium nitride layers over the titanium layer by a cyclical deposition process, wherein the cyclical deposition process comprises: exposing the substrate to a deposition gas comprising a titanium precursor to form a titanium-containing layer on the substrate, wherein the titanium precursor comprises a titanium organic compound comprising methylamido or ethylamido; exposing the titanium-containing layer disposed on the substrate to a nitrogen plasma formed from a nitrogen precursor gas comprising a mixture of nitrogen gas and hydrogen gas; and sequentially exposing the substrate to the deposition gas and the nitrogen plasma to form the conformal titanium nitride layer; and depositing a conductive material comprising tungsten or copper over the substrate during a vapor deposition process.