Khalifa University of Science and Technology Assigned Patent

Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates, has been assigned a patent (12249638) developed by Rezeq; Moh’d, Abu Dhabi, United Arab Emirates, for “non-volatile memory systems based on single nanoparticles for compact and high data storage electronic devices.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “There is provided a structure of a nano memory system. The disclosed unit nano memory cell comprises a single isolated nanoparticle placed on the surface of a semiconductor substrate (301) and an adjacent nano-Schottky contact (303). The nanoparticle works as a storage site where the nano-Schottky contact (303) works as a source or a drain of electrons, in or out of the semiconductor substrate (301), at a relatively small voltage. The electric current through the nano-Schottky contact (303) can be turned on (reading 1) or off (reading 0) by charging or discharging the nanoparticle. Since the electric contact is made by a nano-Scottky contact (303) on the surface and the back contact of the substrate (301), and the charge is stored in a very small nanoparticle, this allows to attain the ultimate device down-scaling. This would also significantly increase the number of nano memory cells on a chip. Moreover, the charging and discharging (writing/erasing), as well as the reading voltages are lower than those needed for CMOS based flash memory cells, due to the small nano-Schottky contact (301) and the small size of the nanoparticle for charge storage.”

The patent application was filed on 2019-11-13 (17/292552).