Patent ID: 6441420
Filing Date: 2002-08-27
Classification: H01L

Abstract:
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.