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    Non-volatile memory systems based on single nanoparticles for compact and high data storage electronic devices
    113.
    发明授权
    Non-volatile memory systems based on single nanoparticles for compact and high data storage electronic devices 有权

    公开(公告)号：US12249638B2

    公开(公告)日：2025-03-11

    申请号：US17292552

    申请日：2019-11-13

    Applicant: Khalifa University of Science and Technology

    Inventor： Moh'd Rezeq

    IPC: H01L29/423 ,  B82Y10/00 ,  H01L29/78 ,  H10B43/00 ,  H01L29/66

    Abstract: 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.

    Method of manufacturing contact lens for treating color vision deficiency
    115.
    发明授权
    Method of manufacturing contact lens for treating color vision deficiency 有权

    公开(公告)号：US12140820B2

    公开(公告)日：2024-11-12

    申请号：US17499251

    申请日：2021-10-12

    Applicant: Khalifa University of Science and Technology

    Inventor： Haider Butt ,  Fahad Alam

    IPC: G02C7/04 ,  B29D11/00 ,  B33Y80/00 ,  G02B1/12

    Abstract: A method of forming an ophthalmic contact lens using an additive manufacturing apparatus is presented herein. The method providing a first solution comprising HEMA, PEGDA, and a photoinitiator, forming a support structure on a planar print bed of the additive manufacturing apparatus by depositing a first plurality of layers of the first solution and curing the first plurality of layers, and forming an ophthalmic contact lens on the support structure by depositing a second plurality of layers of the first solution and curing the second plurality of layers. The second plurality of layers are arranged such that a disc of the ophthalmic contact lens is oriented generally perpendicular to the planar print bed of the additive manufacturing apparatus.

    ELEMENTAL SULFUR-ACRYLIC EMULSION
    118.
    发明公开
    ELEMENTAL SULFUR-ACRYLIC EMULSION 审中-公开

    公开(公告)号：US20240317941A1

    公开(公告)日：2024-09-26

    申请号：US18269414

    申请日：2022-02-09

    Applicant: Khalifa University of Science and Technology

    Inventor： Saeed M. ALHASSAN ,  Kishore Kumar JENA ,  Anjali GOYAL

    IPC: C08G75/02

    CPC classification number: C08G75/02

    Abstract: In general, embodiments of the present disclosure describe a method of sulfur polymerization including preparing a monomer solution. The monomer solution includes sulfur, at least one monomer selected from a vinyl-monomer group including styrene, n-butyl methyl acrylate, methyl methacrylate, acrylic acid, and mixtures thereof, one or more surfactants. The method includes preparing a reaction solution. The reaction solution includes water, combining the monomer solution with the reaction solution, agitating the reaction solution and the monomer solution, adding a free radical initiator, and increasing a reaction temperature.

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