Patents by Inventor Lucian Shifren

Lucian Shifren has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11636316
    Abstract: Broadly speaking, the present techniques exploit the properties of correlated electron materials for artificial neural networks and neuromorphic computing. In particular, the present techniques provide apparatuses/devices that comprise at least one correlated electron switch (CES) element and which may be used as, or to form, an artificial neuron or an artificial synapse.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: April 25, 2023
    Assignee: Cerfe Labs, Inc.
    Inventors: Lucian Shifren, Shidhartha Das, Naveen Suda, Carlos Alberto Paz de Araujo
  • Patent number: 11522133
    Abstract: Subject matter disclosed herein may relate to fabrication of correlated electron materials used, for example, to perform a switching function. In embodiments, processes are described in which a correlated electron material film may be formed over a conductive substrate by converting at least a portion of the conductive substrate to CEM.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: December 6, 2022
    Assignee: Cerfe Labs, Inc.
    Inventors: Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska, Christopher Randolph McWilliams, Lucian Shifren, Kimberly Gay Reid
  • Publication number: 20220328651
    Abstract: A device stack for an electronic memory or other device includes a substrate and first and second layers of insulating material. The first layer of insulating material is supported by the substrate. A semiconducting ferroelectric layer is positioned and electrically isolated between the first and second layers of insulating material. A stress layer capable of converting a ferroelectric or semiconductor material into a semiconducting ferroelectric material can be positioned in contact with the semiconducting ferroelectric layer. In some embodiments, the device is a Metal-Insulator-FeS-Insulator-Semiconductor (MIFIS) device that allows for controlled switching of the semiconducting ferroelectric (FeS) layer between various polarization states. Switching polarization states is enabled by application of an electric field by a semiconducting electrode.
    Type: Application
    Filed: April 7, 2022
    Publication date: October 13, 2022
    Inventors: Saurabh Vinayak Suryavanshi, Lucian Shifren, Carlos A. Paz de Araujo, Jolanta B. Celinska
  • Patent number: 11450804
    Abstract: Subject matter disclosed herein may relate to construction of a correlated electron material (CEM) device. In particular embodiments, after formation of a film comprising layers of a transition metal oxide (TMO) material and a dopant, at least a portion of the film may be exposed to an elevated temperature. Exposure of the at least a portion of the film to the elevated temperature may continue until the atomic concentration of the dopant within the film is reduced, which may enable operation of the film as a correlated electron material CEM exhibiting switching of impedance states.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: September 20, 2022
    Assignee: CERFE LABS, INC.
    Inventors: Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska, Lucian Shifren
  • Publication number: 20220293766
    Abstract: A device stack for an electronic memory or other device includes a substrate and first and second layers of insulating material. The first layer of insulating material is supported by the substrate. A semiconducting ferroelectric layer is positioned and electrically isolated between the first and second layers of insulating material. An electrode is positioned onto or above the second layer of insulating material. In some embodiments, the device is a Metal-Insulator-FeS-Insulator-Semiconductor (MIFIS) device that allows for controlled switching of the semiconducting ferroelectric (FeS) layer between various polarization states. Switching polarization states is enabled by application of an electric field by the electrode.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 15, 2022
    Inventors: Lucian Shifren, Carlos A. Paz de Araujo, Jolanta B. Celinska
  • Patent number: 11258010
    Abstract: Subject matter disclosed herein may relate to fabrication of a correlated electron material (CEM) such as in a CEM device capable of switching between and/or among impedance states. In particular embodiments, a CEM may be formed from one or more transition metal oxides (TMOs), one or more post transition metal oxides (PTMOs) or one or more post transition metal chalcogenides (PTMCs), or a combination thereof.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: February 22, 2022
    Assignee: Cerfe Labs, Inc.
    Inventors: Carlos Alberto Paz de Araujo, Saurabh Vinayak Suryavanshi, Lucian Shifren, Jolanta Bozena Celinska
  • Patent number: 11201276
    Abstract: Various implementations described herein are related to a device having multiple conductive terminals formed with a superconductive material. The device may include at least one switching layer formed with correlated-electron material (CEM) that is disposed between the multiple conductive terminals. The CEM may comprise carbon or a carbon based compound. The device may refer to a switch structure or similar.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 14, 2021
    Assignee: Cerfe Labs, Inc.
    Inventors: Lucian Shifren, Carlos Alberto Paz de Araujo
  • Patent number: 11183998
    Abstract: Subject matter disclosed herein may relate to correlated electron switches.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: November 23, 2021
    Assignee: Cerfe Labs, Inc.
    Inventor: Lucian Shifren
  • Patent number: 11133466
    Abstract: Methods are disclosed herein for controlling the switching characteristics of correlated electron material (CEM) switching devices. The methods comprise one or more of controlling a density of grain boundaries in the CEM layer, controlling an open pore porosity in the CEM layer and controlling a surface area of exposed surfaces of the CEM layer during the fabrication of the CEM switching devices.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 28, 2021
    Assignee: Cerfe Labs, Inc.
    Inventors: Saurabh Vinayak Suryavanshi, Lucian Shifren, Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska
  • Patent number: 11133467
    Abstract: Subject matter disclosed herein may relate to programmable fabrics including correlated electron switch devices.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: September 28, 2021
    Assignee: Cerfe Labs, Inc.
    Inventors: Carlos Alberto Paz de Araujo, Lucian Shifren
  • Publication number: 20210257534
    Abstract: Various implementations described herein are related to a device having multiple conductive terminals formed with a superconductive material. The device may include at least one switching layer formed with correlated-electron material (CEM) that is disposed between the multiple conductive terminals. The CEM may comprise carbon or a carbon based compound. The device may refer to a switch structure or similar.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 19, 2021
    Inventors: Lucian Shifren, Carlos Alberto Paz de Araujo
  • Patent number: 11011701
    Abstract: Subject matter disclosed herein may relate to fabrication of a correlated electron material (CEM) switch. In embodiments, processes are described in which conductive traces may be formed on or over an insulating material. Responsive to forming voids in the insulating material, localized portions of the conductive traces in contact with the voids may be exposed to gaseous oxidizing agents, which may convert the localized portions of the conductive traces to a CEM. In embodiments, an electrode material may be deposited within the voids to contact the localized portion of conductive trace converted to the CEM.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 18, 2021
    Assignee: Cerfe Labs, Inc.
    Inventors: Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska, Kimberly Gay Reid, Lucian Shifren
  • Patent number: 11005039
    Abstract: A correlated electron material device is described to comprise a conductive substrate and a layer of a correlated electron material disposed over the conductive substrate. The layer of correlated electron material may comprise a metal rich transition or other metal compound, and at least a portion of anion vacancies within the metal rich transition or other metal compound are occupied by an electron back-donating extrinsic ligand for the metal rich transition or other metal compound. Under certain conditions, the electron back-donating extrinsic ligand occupying anion vacancies may be activated so as to impart particular switching characteristics in the correlated electron material device.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: May 11, 2021
    Assignee: Cerfe Labs, Inc.
    Inventors: Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska, Lucian Shifren
  • Publication number: 20210083186
    Abstract: Subject matter disclosed herein may relate to fabrication of a correlated electron material (CEM) such as in a CEM device capable of switching between and/or among impedance states. In particular embodiments, a CEM may be formed from one or more transition metal oxides (TMOs), one or more post transition metal oxides (PTMOs) or one or more post transition metal chalcogenides (PTMCs), or a combination thereof.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 18, 2021
    Inventors: Carlos Alberto Paz de Araujo, Saurabh Vinayak Suryavanshi, Lucian Shifren, Jolanta Bozena Celinska
  • Patent number: 10937831
    Abstract: Subject matter disclosed herein may relate to devices formed from correlated electron material.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: March 2, 2021
    Assignee: CERFE LABS, INC.
    Inventors: Lucian Shifren, Kimberly Gay Reid, Gregory Munson Yeric
  • Publication number: 20200411762
    Abstract: Subject matter disclosed herein may relate to programmable fabrics including correlated electron switch devices.
    Type: Application
    Filed: July 27, 2020
    Publication date: December 31, 2020
    Inventors: Carlos Alberto Paz de Araujo, Lucian Shifren
  • Patent number: 10873025
    Abstract: Subject matter disclosed herein may relate to fabrication of a correlated electron material (CEM) switch. In particular embodiments, formation of a CEM switch may comprise depositing metal layers, such layers of a transition metal, over a conductive substrate. Dopant layers may subsequently be deposited on the layers of the transition metal, followed by annealing of the layers of transition metal and dopant layers. Responsive to annealing, dopant from the dopant layers may diffuse into the one or more layers of transition metal, thereby forming a CEM.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: December 22, 2020
    Assignee: Arm Limited
    Inventors: Lucian Shifren, Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska, Christopher Randolph McWilliams
  • Patent number: 10854814
    Abstract: Subject matter disclosed herein may relate to fabrication of correlated electron materials used, for example, to perform a switching function. In embodiments, a correlated electron material may be doped using dopant species derived from one or more precursors utilized to fabricate nearby structures such as, for example, a conductive substrate or a conductive overlay.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: December 1, 2020
    Assignee: Arm Limited
    Inventors: Kimberly Gay Reid, Lucian Shifren
  • Publication number: 20200357992
    Abstract: Subject matter disclosed herein may relate to construction of a correlated electron material (CEM) device. In particular embodiments, after formation of a film comprising layers of a transition metal oxide (TMO) material and a dopant, at least a portion of the film may be exposed to an elevated temperature. Exposure of the at least a portion of the film to the elevated temperature may continue until the atomic concentration of the dopant within the film is reduced, which may enable operation of the film as a correlated electron material CEM exhibiting switching of impedance states.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Inventors: Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska, Lucian Shifren
  • Patent number: 10797238
    Abstract: Subject matter disclosed herein may relate to construction of a correlated electron material (CEM) device. In particular embodiments, after formation of a film comprising layers of a transition metal oxide (TMO) material and a dopant, at least a portion of the film may be exposed to an elevated temperature. Exposure of the at least a portion of the film to the elevated temperature may continue until the atomic concentration of the dopant within the film is reduced, which may enable operation of the film as a correlated electron material CEM exhibiting switching of impedance states.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: October 6, 2020
    Assignee: ARM Ltd.
    Inventors: Carlos Alberto Paz de Araujo, Jolanta Bozena Celinska, Lucian Shifren