Patent ID: 7473980

Claim:
A semiconductor device comprising: a capacitor formed over a semiconductor substrate and including a lower electrode, a dielectric film formed over the lower electrode and an upper electrode formed over the dielectric film; a first insulation film formed over the semiconductor substrate and the capacitor; a first interconnection formed over the first insulation film and electrically connected to the capacitor; a first hydrogen diffusion preventive film formed over the first insulation film, covering the first interconnection, for preventing the diffusion of hydrogen; a second insulation film formed over the first hydrogen diffusion preventive film and having the surface planarized; a third insulation film formed over the second insulation film; a second interconnection formed over the third insulation film; a second hydrogen diffusion preventive film formed over the third insulation film, covering the second interconnection, for preventing the diffusion of hydrogen, and a solid conduction film formed over the third insulation film at least above the capacitor, wherein the second hydrogen diffusion preventive film is formed, covering the solid conduction film, and the first hydrogen diffusion preventive film and the second hydrogen diffusion preventive film are formed of metal oxide.