Patent ID: 6737728
Filing Date: 2004-05-18
Classification: H01L

Abstract:
A decoupling capacitor placed in between a first interconnect layer and a second interconnect layer, comprising:a high-k dielectric material disposed between a first three dimensional electrode and a second electrode; the first electrode comprising a first material which substantially prevents diffusion of copper therethrough, and a second material, superjacent an entire surface of the first material, which substantially prevents diffusion of oxygen and oxygen-containing compounds therethrough, an entire bottom surface of the first electrode being in physical contact with a first interconnect layer; and the second electrode comprising a third material which substantially prevents diffusion of oxygen and oxygen-containing compounds therethrough and a fourth material, superjacent an entire surface of the third material, which substantially prevents diffusion of copper therethrough, an upper surface of the second electrode being in contact with a second interconnect layer.