Westerman, Hattori, Daniels & Adrian, LLP
Method for making semiconductor device having ferroelectric capacitor therein
A ferroelectric capacitor provided with a ferroelectric film (10a) is formed above a semiconductor substrate, and thereafter a wiring (17) directly connected to electrodes (9a, 11a) of a ferroelectric capacitor is formed. Then, a silicon oxide film (18) covering the wiring (17) is formed. As the silicon oxide film (18), a film which has processability higher than that of an aluminum oxide film is formed. Besides, a degree of damage that occurs in the ferroelectric capacitor when the insulating film is formed is equal to or less than that when an aluminum oxide film is formed.
Fujitsu Semiconductor Limited
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Kouichi Hideaki
Nagai Kikuchi