Patent ID: 7153704

Claim:
A method of fabricating a ferroelectric capacitor comprising: forming a lower electrode film on a top surface of a conductive portion formed in a through hole disposed in an insulating layer and on the insulating layer surrounding the top surface; forming a paraelectric film on the lower electrode film so as to partially expose a surface of the lower electrode film; forming a ferroelectric film on the exposed lower electrode film and on the paraelectric film surrounding the exposed lower electrode film; forming an upper electrode film, on a surface of the ferroelectric film including a first region that faces a contact surface between the lower electrode film and the ferroelectric film and a second region that surrounds the first region and faces the paraelectric film; and etching the upper electrode film, the ferroelectric film, the paraelectric film and the lower electrode film using a mask that covers a surface of the upper electrode film including over the first region and the second region.