FERROELECTRIC ELEMENT AND ITS DESIGN METHOD

摘要

PROBLEM TO BE SOLVED: To enhance a holding characteristic of a ferroelectric element of a structure of a ferroelectric substance capacitor connection to a gate electrode of a field-effect transistor (MIS-FET). SOLUTION: The gate electrode is connected to a first ferroelectric substance capacitor, and a second capacitor which is the ferroelectric substance capacitor which is smaller in a residual polarization than the first capacitor, or is a normal dielectric capacitor having a perovskite structure. COPYRIGHT: (C)2004,JPO