Patent ID: 8679939

Claim:
A semiconductor layer stack comprising: a first electrode material formed above a substrate; a first dielectric material formed above the first electrode material; a second dielectric material formed above the first dielectric material, the second dielectric material having a rutile-like crystal structure; and a second electrode material formed above the second dielectric material, wherein the second electrode material comprises a metal oxide having a rutile-like crystal structure configured to provide a template for the rutile-like crystal structure of the second dielectric material, and wherein the first dielectric material is amorphous and comprises one of barium-strontium-titanate (BST), silicate, niobium oxide, lead-zirconium-titanate (PZT), a bilayer of silicon oxide and silicon nitride, silicon oxy-nitride, strontium titanate (STO), tantalum oxide, or combinations thereof, wherein the first dielectric material has a higher dopant concentration than the second dielectric material.