Patent ID: RE41625

Claim:
A semiconductor device comprising: a protective insulating film deposited on a semiconductor substrate having first and second field-effect transistors formed thereon; a capacitor composed of a capacitor lower electrode, a capacitor insulating film made of an insulating metal oxide, and a capacitor upper electrode which are formed in upwardly stacked relationship on the protective insulating film; wherein an edge portion of the capacitor upper electrode is formed onto the protective insulating film; a first contact plug formed in the protective insulating film to provide a direct connection between an impurity diffusion layer serving as a source or drain region of the first field-effect transistor and the capacitor lower electrode; a second contact plug formed in the protective insulating film to provide a direct connection between an impurity diffusion layer serving as a source or drain region of the second field-effect transistor and the edge portion of the capacitor upper electrode; and a hydrogen barrier film entirely covering the capacitor upper electrode.