Patent ID: 8216857

Claim:
A method of fabricating a ferroelectric memory apparatus, comprising: forming an interlayer insulation film so as to cover a transistor which is formed on a semiconductor substrate; forming a conductive plug in said interlayer insulation film in contact with a diffusion region of said transistor; and forming a ferroelectric capacitor over said conductive plug by consecutively stacking a lower electrode, a ferroelectric film and an upper electrode, wherein there is provided, after said process of forming said conductive plug but before said process of forming said lower electrode, the process of: forming a layer containing oxygen on said interlayer insulation film and a surface of said conductive plug; forming a layer containing nitrogen on a surface of said layer containing oxygen including a part of said layer containing oxygen on said conductive plug; and forming a self-alignment film on said layer containing nitrogen, said process of forming said layer containing oxygen comprises the process of depositing a layer containing Si on said surface of said contact plug; and reacting oxygen radicals to said layer containing Si.