Patent ID: 8551851

Claim:
A method of forming a capacitor stack, the method comprising: forming an electrode on a substrate; pretreating a surface of the electrode with an oxidizer; forming a dielectric layer above the surface of the electrode using an ALD process, the dielectric layer including a titanium oxide with a dopant metal oxide included therein, where the ALD process comprises using an amide-containing titanium precursor and an oxygen source reagent to form the titanium oxide, annealing at least the dielectric layer; and forming a second electrode above the dielectric layer; wherein dopant metal oxide is yttrium oxide; the method further comprising the introduction of a yttrium precursor during the ALD process; wherein the yttrium precursor is introduced as a separate step in the ALD deposition process than the introduction of the amide-containing titanium precursor step; and wherein the yttrium oxide is present in an amount of between about 1% and about 2%.