Ferroelectric gate device

Iron device comprising a ferroelectric capacitor switches (1), in accordance with a voltage applied to the switching element plays a resistor or a capacitor function (2), having a source, a drain, and a gate electrode of a field effect transistor (6), a ferroelectric capacitor (1 ) having an input terminal to one end (the iN), one end of the ferroelectric capacitor (1) and the other end of the switching element (2) is connected to the other end of the switching gate element (2) and a field effect transistor (6) is connected, via when a voltage is applied to the input terminal, the coercive voltage has a ferroelectric (Vc) above a voltage applied to the ferroelectric capacitor (1) in the ferroelectric capacitor body (1), the switching element (2) a resistance work by applying a voltage to the input terminal, is applied to the ferroelectric capacitor (1) than the ferroelectric capacitor (1) when the coercive voltage having a ferroelectric (Vc) small voltage, the switching element (2) as a capacitor jobs.