Patent ID: 7256088

Claim:
A manufacturing method for a semiconductor device, comprising: forming a first conductive film over a substrate; forming a metal oxide film on the first conductive film; forming a second conductive film on the metal oxide film; patterning the second conductive film to form an upper electrode of a capacitor element; forming an ozone TEOS film on the patterned second conductive film and on the metal oxide film; carrying out heat treatment on the ozone TEOS film, after said forming an ozone TEOS oxide film; forming a protective film on the ozone TEOS film, after said carrying out heat treatment; patterning the protective film, the ozone TEOS film, the metal oxide film and the first conductive film to form a capacitor insulating film and a lower electrode of the capacitor element; and forming an insulation film that is thicker than the ozone TEOS film, to cover the patterned films.