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).
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Patent number: 11635450Abstract: 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: GrantFiled: June 29, 2021Date of Patent: April 25, 2023Assignees: Quantum Silicon inc., National Research Council of CanadaInventors: Robert Wolkow, Mohammad Rashidi, Wyatt Vine, Thomas Dienel, Lucian Livadaru, Taleana Huff, Jacob Retallick, Konrad Walus, Jason Pitters, Roshan Achal
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Publication number: 20230093537Abstract: 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: ApplicationFiled: November 28, 2022Publication date: March 23, 2023Applicants: National Research Council of Canada, Quantum Silicon Inc., The Governors of the University of AlbertaInventors: Roshan Achal, Robert A. Wolkow, Jason Pitters, Martin Cloutier, Mohammad Rashidi, Marco Taucer, Taleana Huff
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Patent number: 11557337Abstract: 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: GrantFiled: June 19, 2019Date of Patent: January 17, 2023Assignees: National Research Council of Canada, Quantum Silicon Inc., The Governors of the University of AlbertaInventors: Roshan Achal, Robert A. Wolkow, Jason Pitters, Martin Cloutier, Mohammad Rashidi, Marco Taucer, Taleana Huff
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Publication number: 20210325429Abstract: 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: ApplicationFiled: June 29, 2021Publication date: October 21, 2021Applicants: Quantum Silicon Inc., National Research Council of Canada, The University of British ColumbiaInventors: Robert Wolkow, Mohammad Rashidi, Wyatt Vine, Thomas Dienel, Lucian Livadaru, Taleana Huff, Jacob Retallick, Konrad Walus, Jason Pitters, Roshan Achal
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Publication number: 20210272625Abstract: 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: ApplicationFiled: June 19, 2019Publication date: September 2, 2021Applicants: National Research Council of Canada, Quantum Silicon Inc., The Governors of the University of AlbertaInventors: Roshan Achal, Robert A. Wolkow, Jason Pitters, Martin Cloutier, Mohammad Rashidi, Marco Taucer, Taleana Huff
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Publication number: 20210184115Abstract: 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: ApplicationFiled: February 4, 2021Publication date: June 17, 2021Applicant: Quantum Silicon Inc.Inventors: Robert A. Wolkow, Roshan Achal, Taleana Huff, Hatem Labidi, Lucian Livadaru, Paul Piva, Mohammad Rashidi
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Patent number: 10937959Abstract: 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: GrantFiled: July 19, 2017Date of Patent: March 2, 2021Assignee: QUANTUM SILICON INC.Inventors: Robert A. Wolkow, Roshan Achal, Taleana Huff, Hatem Labidi, Lucian Livadaru, Paul Piva, Mohammad Rashidi