Patent ID: 7456078

Claim:
A method for fabricating a thin-film capacitor comprising the steps of: forming a first capacitor electrode over a base substrate; forming over a first capacitor electrode a first conducting barrier film which prevents the diffusion of hydrogen or water; forming a capacitor dielectric film over the first conducting barrier film; forming a second capacitor electrode over the capacitor dielectric film; forming over the second capacitor electrode a second conducting barrier film which prevents the diffusion of hydrogen or water; forming an insulation film over the first conducting barrier film ad the second conducting barrier film; and burying in the insulation film a first outside connection electrode for connecting to outside connected to the first capacitor electrode via the first conducting barrier film, and a second outside connection electrode for connecting to outside connected to the second capacitor electrode via the second conducing barrier film, wherein the first conducting burrier film and the second conducting barrier film are formed of IrO 2 .