Patent ID: 6980043
Filing Date: 2005-12-27
Classification: G11C

Abstract:
1. A ferroelectric element which comprises: a ferroelectric capacitor, and a switching element which is serially connected to said ferroelectric capacitor, an input terminal and a grounding terminal; said switching element comprising an N-channel field effect transistor and a P-channel field-effect transistor; sources of said N-channel and P-channel electric field effect transistors being connected to said input terminal; drains of said N-channel and P-channel field-effect transistors being connected to one end of said ferroelectric capacitor; the other end of said ferroelectric capacitor and gates of said N-channel and P-channel field-effect transistors being connected to said grounding terminal; when an input voltage is applied to said input terminal, said switching element serving as a resistor if a voltage higher than a predetermined voltage of a ferroelectric substance of said ferroelectric capacitor is applied to said ferroelectric capacitor; and said switching element serving as a capacitor if the voltage lower than said predetermined voltage is applied to said ferroelectric capacitor.