Patent ID: 8541867

Claim:
A structure, comprising: a bottom metallic electrode; a dielectric film formed over the bottom metallic electrode; a top metallic electrode formed over and touching the dielectric film, the top metallic electrode comprising an oxygen scavenging material; wherein the oxygen scavenging material is a film formed in a longitudinal direction in the top metallic electrode; wherein in the top metallic electrode, the oxygen scavenging material is oxygen scavenging while any remaining material in the top metallic electrode is not oxygen scavenging; an oxygen region formed at an interface of the bottom metallic electrode and the dielectric film, the top metallic electrode being remote from and not touching the oxygen region; wherein the oxygen scavenging material is selected such that an oxygen density decreases in the oxygen region between the bottom metallic electrode and the top metallic electrode responsive to elevating a temperature of the bottom metallic electrode, the dielectric film, and the top metallic electrode; and an oxidized oxygen scavenging material formed in the top metallic electrode from the oxygen scavenging material, responsive to elevating the temperature which decreases the oxygen density in the oxygen region at the interface of the bottom metallic electrode and the dielectric film.