Patent ID: 8349679

Claim:
A method of manufacturing a semiconductor device, the method comprising: forming a first interlayer insulating film over a semiconductor substrate; forming a crystalline conductive film on the first interlayer insulating film; forming a first conductive film on the crystalline conductive film; forming a ferroelectric film on the first conductive film; forming a second conductive film on the ferroelectric film; forming a conductive cover film, made of platinum-group element except for iridium, on the second conductive film; forming a hard mask on the conductive cover film; etching the conductive cover film, the second conductive film, the ferroelectric film and the first conductive film in areas exposed from the hard mask, while using the hard mask as an etching mask, to form a capacitor including an upper electrode made of the second conductive film, a capacitor dielectric film made of the ferroelectric film, and a lower electrode made of the first conductive film; and etching the hard mask and the crystalline conductive film in areas exposed from the lower electrode simultaneously.