Ferroelectric capacitor

Details Ferroelectric capacitor Ferroelectric capacitor

2004-10-19

2008-09-09

Weiss, Howard (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257S300000, C257SE27016, C257SE27155

Reexamination Certificate

active

07423308

ABSTRACT:
A ferroelectric capacitor includes a lower electrode, a ferroelectric film provided over the lower electrode and having a perovskite-type structure and an upper electrode provided over the ferroelectric film. The ferroelectric film includes a first ferroelectric film part having a first crystal system and formed along at least one interface with at least one of the lower electrode and the upper electrode and a second ferroelectric film part having a second crystal system that is different from the first crystal system.

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