A Negative Voltage Generator Circuit Using a Ferroelectric Capacitor for Low-voltage Supply

摘要

We propose a novel voltage generator circuit using a ferroelectric capacitor. This circuit outputs the negative voltage that is generated at the connected node of the in-series circuit with a ferroelectric capacitor and a dielectric capacitor, and it can convert a positive input voltage into a negative output voltage. We evaluated the circuit's performance characteristics using the circuit simulator (SPICE) and demonstrated its circuit operation using an experimental circuit. And, we quantify the specification of the ferroelectric material that is required to output high voltage under the low-voltage supply. It is thought that its circuit is suitable for reducing the standby leakage current of MOS transistors.