Patent ID: 7964515

Claim:
A method for forming a high-dielectric constant (high-k) film for a semiconductor device, the method comprising: disposing a substrate in a process chamber; providing a film deposition sequence of a first reactant containing a metal-carbon precursor and a second reactant containing ozone in temporally separated and alternating reactant pulses, the sequence comprising: selecting a first reactant pulse, wherein self-saturation of the metal-carbon precursor on a surface of the substrate is achieved, and selecting a second reactant pulse comprising ozone, wherein below self-saturation of ozone reacting with the self-saturated metal-carbon precursor on the surface of the substrate is achieved; and exposing the substrate to the sequence of the reactant pulses with the selected temporal separations and exposures to deposit a conformal metal-carbon-oxygen high-k film on the substrate, wherein the conformal metal-carbon-oxygen high-k film contains metal atoms and carbon atoms from the metal-carbon precursor and oxygen from the ozone exposure, wherein the conformal metal-carbon-oxygen high-k film has 4-6 atomic percent carbon.