Patent ID: 7572695

Claim:
A method comprising: forming a dielectric layer containing a hafnium titanium oxide film on a substrate including forming the hafnium titanium oxide (Hf x Ti y O z , where x, y, and z are numbers greater than zero) film by atomic layer deposition, the atomic layer deposition including: pulsing a precursor containing hafnium into a reaction chamber containing the substrate in a cycle of the atomic layer deposition, both the precursor containing hafnium and the reaction chamber substantially void of a gas containing titanium; pulsing a precursor containing titanium into the reaction chamber in the cycle of the atomic layer deposition, both the precursor containing titanium and the reaction chamber substantially void of a gas containing hafnium; and controlling pulsing parameters, pressure within the reaction chamber, and temperature of the substrate such that the pulsing parameters, the pressure within the reaction chamber, and the temperature of the substrate are selected, individually for each precursor, to form hafnium titanium oxide (Hf x Ti y O z , where x, y, and z are numbers greater than zero) in the cycle of the atomic layer deposition.