Patent ID: 8076212

Claim:
A method for manufacturing a semiconductor device, comprising the steps of: forming, above a semiconductor substrate, a capacitor structure including a lower electrode and an upper electrode that sandwich a dielectric film; forming, over the capacitor structure, a wiring structure electrically connected to the capacitor structure; forming a pad electrode electrically connected to the wiring structure; depositing a first insulating film to cover the pad electrode and planarizing a surface of the insulating film; forming, on the first insulating film, a second insulating film having a capability of preventing penetration of hydrogen and having a lower etching rate than that of the first insulating film; forming, in the second insulating film and the first insulating film, an opening exposing a portion of a surface of the pad electrode; and forming a protective metal film made of a moisture-resistant metal so that the protective metal fills the opening and is coupled to the pad electrode.