Patents by Inventor Roshan Achal

Roshan Achal 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: 11955172
    Abstract: An atomic orbital based memory storage is provided that includes a plurality of surface atoms forming dangling bonds (DBs) and a subset of the plurality of surface atoms passivated with spatial control to form covalent bonds with hydrogen, deuterium, or a combination thereof. The atomic orbital based data storage that can be rewritten and corrected as needed. The resulting data storage is also archival and capable of high data densities than any known storage as the data is retained in a binary storage or a given orbital being passivated or a dangling bond (DB). A method of forming and reading the atomic orbital data storage is also provided. The method including selectively removing covalent bonds to form dangling bonds (DBs) extending from a surface atom by hydrogen lithography and imaging the covalent bonds spatially to read the atomic orbital data storage.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: April 9, 2024
    Assignees: National Research Council of Canada, Quantum Silicon Inc., The Governors of the University of Alberta
    Inventors: Roshan Achal, Robert A. Wolkow, Jason Pitters, Martin Cloutier, Mohammad Rashidi, Marco Taucer, Taleana Huff
  • Patent number: 11635450
    Abstract: A method for the patterning and control of single electrons on a surface is provided that includes implementing scanning tunneling microscopy hydrogen lithography with a scanning probe microscope to form charge structures with one or more confined charges; performing a series of field-free atomic force microscopy measurements on the charge structures with different tip heights, where interaction between the tip and the confined charge are elucidated; and adjusting tip heights to controllably position charges within the structures to write a given charge state. The present disclose also provides a Gibb's distribution machine formed with the method for the patterning and control of single electrons on a surface. A multi bit true random number generator and neural network learning hardware formed with the above described method are also provided.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: April 25, 2023
    Assignees: Quantum Silicon inc., National Research Council of Canada
    Inventors: Robert Wolkow, Mohammad Rashidi, Wyatt Vine, Thomas Dienel, Lucian Livadaru, Taleana Huff, Jacob Retallick, Konrad Walus, Jason Pitters, Roshan Achal
  • Publication number: 20230093537
    Abstract: An atomic orbital based memory storage is provided that includes a plurality of surface atoms forming dangling bonds (DBs) and a subset of the plurality of surface atoms passivated with spatial control to form covalent bonds with hydrogen, deuterium, or a combination thereof. The atomic orbital based data storage that can be rewritten and corrected as needed. The resulting data storage is also archival and capable of high data densities than any known storage as the data is retained in a binary storage or a given orbital being passivated or a dangling bond (DB). A method of forming and reading the atomic orbital data storage is also provided. The method including selectively removing covalent bonds to form dangling bonds (DBs) extending from a surface atom by hydrogen lithography and imaging the covalent bonds spatially to read the atomic orbital data storage.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Applicants: National Research Council of Canada, Quantum Silicon Inc., The Governors of the University of Alberta
    Inventors: Roshan Achal, Robert A. Wolkow, Jason Pitters, Martin Cloutier, Mohammad Rashidi, Marco Taucer, Taleana Huff
  • Patent number: 11557337
    Abstract: An atomic orbital based memory storage is provided that includes a plurality of surface atoms forming dangling bonds (DBs) and a subset of the plurality of surface atoms passivated with spatial control to form covalent bonds with hydrogen, deuterium, or a combination thereof. The atomic orbital based data storage that can be rewritten and corrected as needed. The resulting data storage is also archival and capable of high data densities than any known storage as the data is retained in a binary storage or a given orbital being passivated or a dangling bond (DB). A method of forming and reading the atomic orbital data storage is also provided. The method including selectively removing covalent bonds to form dangling bonds (DBs) extending from a surface atom by hydrogen lithography and imaging the covalent bonds spatially to read the atomic orbital data storage.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: January 17, 2023
    Assignees: National Research Council of Canada, Quantum Silicon Inc., The Governors of the University of Alberta
    Inventors: Roshan Achal, Robert A. Wolkow, Jason Pitters, Martin Cloutier, Mohammad Rashidi, Marco Taucer, Taleana Huff
  • Publication number: 20210325429
    Abstract: A method for the patterning and control of single electrons on a surface is provided that includes implementing scanning tunneling microscopy hydrogen lithography with a scanning probe microscope to form charge structures with one or more confined charges; performing a series of field-free atomic force microscopy measurements on the charge structures with different tip heights, where interaction between the tip and the confined charge are elucidated; and adjusting tip heights to controllably position charges within the structures to write a given charge state. The present disclose also provides a Gibb's distribution machine formed with the method for the patterning and control of single electrons on a surface. A multi bit true random number generator and neural network learning hardware formed with the above described method are also provided.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Applicants: Quantum Silicon Inc., National Research Council of Canada, The University of British Columbia
    Inventors: Robert Wolkow, Mohammad Rashidi, Wyatt Vine, Thomas Dienel, Lucian Livadaru, Taleana Huff, Jacob Retallick, Konrad Walus, Jason Pitters, Roshan Achal
  • Publication number: 20210272625
    Abstract: An atomic orbital based memory storage is provided that includes a plurality of surface atoms forming dangling bonds (DBs) and a subset of the plurality of surface atoms passivated with spatial control to form covalent bonds with hydrogen, deuterium, or a combination thereof. The atomic orbital based data storage that can be rewritten and corrected as needed. The resulting data storage is also archival and capable of high data densities than any known storage as the data is retained in a binary storage or a given orbital being passivated or a dangling bond (DB). A method of forming and reading the atomic orbital data storage is also provided. The method including selectively removing covalent bonds to form dangling bonds (DBs) extending from a surface atom by hydrogen lithography and imaging the covalent bonds spatially to read the atomic orbital data storage.
    Type: Application
    Filed: June 19, 2019
    Publication date: September 2, 2021
    Applicants: National Research Council of Canada, Quantum Silicon Inc., The Governors of the University of Alberta
    Inventors: Roshan Achal, Robert A. Wolkow, Jason Pitters, Martin Cloutier, Mohammad Rashidi, Marco Taucer, Taleana Huff
  • Publication number: 20210184115
    Abstract: A multiple-atom germanium quantum dot is provided that includes multiple dangling bonds on an otherwise H-terminated germanium surface, each dangling bonds having one of three ionization states of +1, 0 or ?1 and corresponding respectively to 0, 1, or 2 electrons in a dangling bond state. The dangling bonds together in close proximity and having the dangling bond states energetically in the germanium band gap with selective control of the ionization state of one of the dangling bonds. A new class of electronics elements is provided through the inclusion of at least one input and at least one output to the multiple dangling bonds. Selective modification or creation of a dangling bond is also detailed.
    Type: Application
    Filed: February 4, 2021
    Publication date: June 17, 2021
    Applicant: Quantum Silicon Inc.
    Inventors: Robert A. Wolkow, Roshan Achal, Taleana Huff, Hatem Labidi, Lucian Livadaru, Paul Piva, Mohammad Rashidi
  • Patent number: 10937959
    Abstract: A multiple-atom silicon quantum dot is provided that includes multiple dangling bonds on an otherwise H-terminated silicon surface, each dangling bonds having one of three ionization states of +1, 0 or ?1 and corresponding respectively to 0, 1, or 2 electrons in a dangling bond state. The dangling bonds together in close proximity and having the dangling bond states energetically in the silicon band gap with selective control of the ionization state of one of the dangling bonds. A new class of electronics elements is provided through the inclusion of at least one input and at least one output to the multiple dangling bonds. Selective modification or creation of a dangling bond is also detailed.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 2, 2021
    Assignee: QUANTUM SILICON INC.
    Inventors: Robert A. Wolkow, Roshan Achal, Taleana Huff, Hatem Labidi, Lucian Livadaru, Paul Piva, Mohammad Rashidi