Nonvolatile selector, and integrated circuit device

摘要

A multiplexer includes first through fourth switching sections 10A through 10D in a pre-stage gate and each of the switching sections 10 includes a serial capacitor 3 and a FET 4. The serial capacitor 3 includes a ferroelectric capacitor 1 and a paraelectric capacitor 2 and an intermediate node of the serial capacitor 3 is connected to a gate electrode 8 of the FET 4. In a unit selector Use11 made up of the switching sections 10A and 10B, a voltage applied to the intermediate node 9 is distributed according to the difference between the capacitances of the two capacitors so that in the switching section 10A and 10B, the FETs 4 alternately turn ON and OFF according to the logical value, 1 or 0, of a selection signal D1. Accordingly, an operation state is stored in a nonvolatile state in the ferroelectric capacitor 1.