Patent ID: 7897413

Claim:
A method for manufacturing a semiconductor device, comprising: forming a first interlayer insulating film over a semiconductor substrate; forming a first conductive film on the first interlayer insulating film; increasing a temperature of the semiconductor substrate, and exposing the first conductive film to an atmosphere of an organic solvent gas; after exposing the first conductive film to the atmosphere of the organic solvent gas, forming a ferroelectric film by forming a first ferroelectric film on the first conductive film by a MOCVD method, and forming a second ferroelectric film on the first ferroelectric film by the sol-gel method; forming a first conductive metal oxide film on the ferroelectric film by a sputtering method, while heating the semiconductor substrate, using a sputtering gas containing oxygen, the flow rate ratio of the oxygen is set to be equal to or greater than 20% and smaller than 50%, where the first conductive metal oxide film being crystallized while being formed; carrying out a first annealing on the first conductive metal oxide film in an atmosphere containing an oxidizing gas; forming a second conductive metal oxide film on the first conductive metal oxide film, so that the second conductive metal oxide film and the first conductive metal oxide film are used, in combination, as a second conductive film; and forming a capacitor including a lower electrode, a capacitor dielectric film and an upper electrode by patterning the first conductive film, the ferroelectric film and the second conductive film.