Patent ID: 6936478

Claim:
A method of fabricating a capacitor on a substrate, comprising: forming a bottom electrode film on the substrate; forming a first dielectric film covering the bottom electrode film; partly removing the first dielectric film to create a first hole exposing the bottom electrode film; forming a ferroelectric film covering the first dielectric film and filling the first hole; removing the ferroelectric film from above the first dielectric film, leaving a part of the ferroelectric film, disposed in the first hole, as a ferroelectric body of the capacitor; forming a top electrode film covering the first dielectric film and the ferroelectric body; partly removing the top electrode film, leaving a part of the top electrode film covering the ferroelectric body as a top electrode of the capacitor; partly removing the first dielectric film, leaving a part of the first dielectric film surrounding the ferroelectric body as a dielectric lining of the capacitor; and partly removing the bottom electrode film, leaving a part of the bottom electrode film disposed below the ferroelectric body as a bottom electrode of the capacitor.