MULTIPLE TIME PROGRAMMABLE (MTP) DEVICE WITH FLOATING GATE AND FERROELECTRIC CAPACITOR

摘要

Implementations of the technology described herein provide a Multiple Time Programmable (MTP) device, such as a Flash memory device, that implements a coupling gate in series with a floating gate. The coupling gate includes a ferroelectric capacitor and a conventional capacitor. The ferroelectric capacitor provides a negative differential capacitance such that the total capacitance of the combination of the floating gate and the coupling gate is larger than it would be if the coupling gate included only a conventional capacitor. One advantage of this device is that the effective coupling ratio between the coupling gate and the floating gate is increased. Another advantage is that the floating gate drops more voltage than conventional Multiple Time Programmable (MTP) devices.