Patent ID: 8901708

Claim:
A semiconductor layer stack comprising: a first conductive layer; a second conductive layer; and a dielectric disposed between the first conductive layer and the second conductive layer, the dielectric comprising a Ti—Y—Ox layer having a yttrium-to-total-metal (Y/(Y+Ti)) constituency of between approximately sixteen to forty-one percent yttrium, the dielectric having a thickness between 5 nanometers and 20 nanometers, the dielectric being formed by a physical vapor deposition (PVD) process, the PVD process comprising reactive co-sputtering of a first source and a second source, wherein the first source comprises metallic yttrium, and wherein the second source comprises metallic titanium, wherein yttrium and titanium are intermixed in the dielectric such that the dielectric is a monolayer having a homogeneous composition; wherein the dielectric is formed in an oxygen-rich environment.