Patent ID: 7550385

Claim:
A method for forming an integrated circuit comprising: providing a substrate; providing an organometallic precursor material; providing at least one doping agent; providing a plasma; placing the substrate within a reaction chamber; performing a process cycle, wherein the process cycle comprises: pulsing the organometallic precursor material into the reaction chamber; pulsing the doping agent into the reaction chamber; and pulsing the plasma into the reaction chamber, wherein the organometallic precursor material, the doping agent, and the plasma react at the surface of the substrate to form a metal and carbon containing layer; and repeating the process cycle until the metal and carbon containing layer is of a sufficient thickness, wherein a number of organometallic precursor material pulses, a number of doping agent pulses, and a number of plasma pulses are varied in consecutive process cycles to form a graded concentration of carbon in the metal and carbon containing layer.