Patents by Inventor Sanghamitra Debroy

Sanghamitra Debroy 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: 12218668
    Abstract: A system and method for a logic device is disclosed. A substrate is provided. Three nanotracks are disposed over the substrate and intersect in a central portion. Two nanotracks are disposed about a first axis and one nanotrack is disposed about a second axis perpendicular to the first axis. A ground pad is disposed in the central portion. An input value is set by nucleating a skyrmion about a first end of the nanotracks disposed about the first axis. Presence of the skyrmion indicates a first value and absence indicates a second value. A charge current is passed in the substrate, along the first axis to move the nucleated skyrmions towards the central portion. Presence of the skyrmion is sensed in the central portion and indicates a first value when skyrmion is present.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: February 4, 2025
    Assignee: Ceremorphic, Inc.
    Inventors: Akshaykumar Salimath, Sanghamitra Debroy, Venkat Mattela
  • Patent number: 12218667
    Abstract: A system and method for a logic device is disclosed. Three synthetic antiferromagnet (SAF) nanotracks are disposed over a substrate along a first axis. A connector nanotrack connects the three input nanotrack about a second end of the nanotracks. An output nanotrack is disposed about a central portion of the connector nanotrack. An input value is defined at a first end of the input nanotracks by selectively nucleating a SAF skyrmion at the first end. Presence of the skyrmion is indicative of a first value and absence of the skyrmion indictive of a second value. A charge current is passed along the first axis to selectively move nucleated skyrmion to the output nanotrack, with presence of Skyrmion indicating an output value of the first value.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: February 4, 2025
    Assignee: Ceremorphic, Inc.
    Inventors: Akshaykumar Salimath, Sanghamitra Debroy, Venkat Mattela
  • Patent number: 12211641
    Abstract: A system and method for a logic device is disclosed. A first input nanotrack, a second input nanotrack and an output nanotrack are disposed over a substrate along a first axis. Output nanotrack is disposed between the input nanotracks. Each nanotrack have a first end and a second end. A connector nanotrack connects the first input nanotrack, the second input nanotrack, and the output nanotrack. An input value is defined at a first end of the input nanotracks by selectively nucleating a skyrmion at the first end. Presence of the skyrmion is indicative of a first value and absence of the skyrmion indictive of a second value. Nucleated skyrmion moves to the second end of the output nanotrack when a charge current is passed along the first axis. Presence of the skyrmion at the second end indicates an output value of the first value.
    Type: Grant
    Filed: April 30, 2022
    Date of Patent: January 28, 2025
    Assignee: CEREMPRPHIC, INC.
    Inventors: Sanghamitra Debroy, Akshaykumar Salimath, Venkat Mattela
  • Patent number: 12211536
    Abstract: A system and method for a logic device is disclosed. A plurality of substrates are provided. At least one input nanomagnet is disposed over each of the plurality of substrates. The plurality of input nanomagnets are disposed substantially equidistant from each other. The plurality of input nanomagnets are each a single domain nanomagnet. A spacer layer is disposed over the plurality of input nanomagnets. An output magnet is disposed over the spacer layer.
    Type: Grant
    Filed: July 31, 2022
    Date of Patent: January 28, 2025
    Assignee: CEREMORPHIC, INC.
    Inventors: Sanghamitra Debroy, Akshaykumar Salimath, Venkat Mattela
  • Patent number: 12212316
    Abstract: A system and method for a logic device is disclosed. A plurality of synthetic antoferromagnet (SAF) nanotracks including a first input nanotrack, a second input nanotrack and an output nanotrack are disposed over a substrate along a first axis. Output nanotrack is disposed between the input nanotracks. Each nanotrack have a first end and a second end. A SAF connector nanotrack connects the first input nanotrack, the second input nanotrack, and the output nanotrack. An input value is defined at a first end of the input nanotracks by selectively nucleating a SAF skyrmion at the first end. Presence of the skyrmion is indicative of a first value and absence of the skyrmion indictive of a second value. A charge current is passed along the first axis to move nucleated skyrmion to the second end of the output nanotrack. Skyrmion at the output indicates an output value of the first value.
    Type: Grant
    Filed: July 31, 2022
    Date of Patent: January 28, 2025
    Assignee: CEREMORPHIC, INC.
    Inventors: Akshaykumar Salimath, Sanghamitra Debroy, Venkat Mattela
  • Patent number: 12081213
    Abstract: A system and method for a logic device is disclosed. A substrate is provided. Three nanotracks are disposed over the substrate and intersect in a central portion. Two nanotracks are disposed about a first axis and one nanotrack is disposed about a second axis perpendicular to the first axis. A ground pad is disposed in the central portion. Nanotrack along the second axis extend beyond the central portion to define an output portion. An input value is set by nucleating a skyrmion about a first end of the nanotracks. Presence of the skyrmion indicates a first value and absence indicates a second value. A charge current is passed in the substrate, along the first axis and the second axis to move the nucleated skyrmions towards the central portion. Presence of the skyrmion is sensed in the output portion and indicates a first value when skyrmion is present.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: September 3, 2024
    Assignee: CEREMORPHIC, INC.
    Inventors: Akshaykumar Salimath, Sanghamitra Debroy, Venkat Mattela
  • Patent number: 11967350
    Abstract: A system and method for a memory device is disclosed. A substrate is provided. A nucleation pad is disposed over the substrate. A nanowire is disposed substantially perpendicular, about a center of the nucleation pad. A charge current is selectively passed through the substrate to nucleate a magnetic vortex in the nucleation pad, the magnetic vortex indicative of a magnetic domain and a direction of the magnetic vortex indicative of a polarity of the magnetic domain. A shift current is applied through the nanowire to shift the magnetic domain into the nanowire.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: April 23, 2024
    Assignee: Ceremorphic,inc.
    Inventors: Akshaykumar Salimath, Venkat Mattela, Sanghamitra Debroy
  • Patent number: 11962298
    Abstract: A system and method for a logic device is disclosed. A first substrate, and a second substrate is provided, which are spaced apart from each other and manifests Spin orbit torque effect. A nanomagnet is disposed over the first substrate and the second substrate. A first charge current is passed through the first substrate and a second charge current is passed through the second substrate. A direction of flow of the first charge current and the second charge current defines an input value of either a first value or a second value. A spin in the nanomagnet is selectively oriented based on the direction of flow of the first charge current and the second charge current. The spin in the nanomagnet is selectively read to determine an output value as the first value or the second value. The logic device is configured as a XOR logic.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: April 16, 2024
    Assignee: Ceremorphic, Inc.
    Inventors: Sanghamitra Debroy, Akshaykumar Salimath, Venkat Mattela
  • Patent number: 11955973
    Abstract: A system and method for a logic device is disclosed. A first nanotrack along a first axis and a second nanotrack along a second axis perpendicular to the first axis are disposed over a substrate. The second nanotrack is disposed over the first nanotrack in a overlap portion. An input value is defined about a first end of the first nanotrack and the second nanotrack by nucleating a skyrmion, wherein a presence of the skyrmion defines a first value and absence of the skyrmion defines a second value. The nucleated skyrmion moves towards the second end of the nanotracks when a charge current is passed through the first nanotrack and the second nanotrack along the second axis. The presence of the skyrmion sensed at the second end of the nanotrack indicates an output value of the first value.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: April 9, 2024
    Assignee: CEREMORPHIC, INC.
    Inventors: Akshaykumar Salimath, Sanghamitra Debroy, Venkat Mattela
  • Patent number: 11917924
    Abstract: A multiplier device for binary magnetic applied fields uses Interlayer Exchange Coupling (IEC) structure where two layers of ferromagnetic material are separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. A plurality of regions on a top surface are activated with a magnetic field in a first direction for a 1 value and in an opposite direction for a 0 value, the multiplication result presented as magnetic field direction on a plurality of output ferromagnetic regions.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: February 27, 2024
    Assignee: Ceremorphic, Inc.
    Inventors: Venkat Mattela, Sanghamitra Debroy, Santhosh Sivasubramani
  • Patent number: 11800647
    Abstract: A system and method for a logic device is disclosed. A plurality of nanotracks are disposed over a substrate, along a first axis, with at least a left nanotrack, a right nanotrack and a middle nanotrack disposed between the left nanotrack and the right nanotrack. At least one connector nanotrack is disposed to connect two adjacent nanotracks. An input value is defined at a first end of the plurality of nanotracks by selectively nucleating a skyrmion at the first end. Presence of the skyrmion is indicative of a first value and absence of the skyrmion indictive of a second value. The nucleated skyrmion moves towards the second end of the nanotrack when a charge current is passed along the first axis. The presence of the skyrmion sensed at the second end of the middle nanotrack indicates an output value of the first value.
    Type: Grant
    Filed: April 30, 2022
    Date of Patent: October 24, 2023
    Assignee: Ceremorphic, Inc.
    Inventors: Akshaykumar Salimath, Sanghamitra Debroy, Venkat Mattela
  • Patent number: 11700001
    Abstract: A system and method for a logic device is disclosed. A first substrate, a second substrate and a third substrate is provided. A first input nanomagnet is disposed over the first substrate, a second input nanomagnet is disposed over the second substrate, and a third input nanomagnet is disposed over the third substrate. A spacer layer is disposed over the first input nanomagnet, the second input nanomagnet, and the third input nanomagnet. An output magnet is disposed over the spacer layer.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: July 11, 2023
    Assignee: CEREMORPHIC, INC.
    Inventors: Sanghamitra Debroy, Akshaykumar Salimath, Venkat Mattela
  • Patent number: 11641783
    Abstract: An adder device for binary magnetic applied fields uses Interlayer Exchange Coupling (IEC) structure where two layers of ferromagnetic material are separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. A set of regions are positioned on a top layer above a continuous bottom layer, and the regions excited with magnetization for A and not A, B and not B, and C and not C to form a sum and an inverse carry output magnetization.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: May 2, 2023
    Assignee: Ceremorphic, Inc.
    Inventors: Venkat Mattela, Sanghamitra Debroy, Santhosh Sivasubramani, Amit Acharyya
  • Publication number: 20220336729
    Abstract: A multiplier device for binary magnetic applied fields uses Interlayer Exchange Coupling (IEC) structure where two layers of ferromagnetic material are separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. A plurality of regions on a top surface are activated with a magnetic field in a first direction for a 1 value and in an opposite direction for a 0 value, the multiplication result presented as magnetic field direction on a plurality of output ferromagnetic regions.
    Type: Application
    Filed: April 19, 2021
    Publication date: October 20, 2022
    Applicant: Redpine Signals, Inc.
    Inventors: Venkat MATTELA, Sanghamitra DEBROY, Santhosh SIVASUBRAMANI
  • Publication number: 20220334797
    Abstract: A multiplier is formed from a plurality of nanomagnetic structures including slant edge input nanomagnetic structures, diagonal elongate interconnect nanomagnetic structures, and output nanomagnetic structures. Input logic levels are provided by inserting a magnetic field, which generates an set of output magnetic fields representing the product of the binary input values.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 20, 2022
    Applicant: Redpine Signals, Inc.
    Inventors: Santhosh SIVASUBRAMANI, Sanghamitra DEBROY
  • Publication number: 20220181545
    Abstract: An adder device for binary magnetic applied fields uses Interlayer Exchange Coupling (IEC) structure where two layers of ferromagnetic material are separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. A set of regions are positioned on a top layer above a continuous bottom layer, and the regions excited with magnetization for A and not A, B and not B, and C and not C to form a sum and an inverse carry output magnetization.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 9, 2022
    Applicant: Redpine Signals, Inc.
    Inventors: Venkat MATTELA, Sanghamitra DEBROY, Santhosh SIVASUBRAMANI, Amit ACHARYYA
  • Patent number: 11355517
    Abstract: An AND or OR logic device has multiple layers of ferromagnetic material separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. The anti-magnetic response in a layer below a layer magnetized with a polarity is summed in a region which is coupled to an output, the output generating at least one of a AND or OR logic function on applied input magnetization.
    Type: Grant
    Filed: August 29, 2020
    Date of Patent: June 7, 2022
    Assignee: Ceremorphic, Inc.
    Inventors: Venkat Mattela, Sanghamitra Debroy, Santhosh Sivasubramani, Amit Acharyya
  • Publication number: 20220068970
    Abstract: An AND or OR logic device has multiple layers of ferromagnetic material separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. The anti-magnetic response in a layer below a layer magnetized with a polarity is summed in a region which is coupled to an output, the output generating at least one of a AND or OR logic function on applied input magnetization.
    Type: Application
    Filed: August 29, 2020
    Publication date: March 3, 2022
    Applicant: Redpine Signals, Inc
    Inventors: Venkat MATTELA, Sanghamitra DEBROY, Santhosh SIVASUBRAMANI, Amit ACHARYYA
  • Patent number: 11101800
    Abstract: An NAND or NOR logic device has multiple layers of ferromagnetic material separated from each other by non-magnetic layers of electrically conductive material of atomic thickness, sufficient to generate anti-magnetic response in a magnetized layer. The anti-magnetic response in a layer below a layer magnetized with a polarity is summed in a region which is coupled to an output, the output generating at least one of a NAND, or NOR logic function on applied input magnetization.
    Type: Grant
    Filed: August 29, 2020
    Date of Patent: August 24, 2021
    Assignee: Redpine Signals, Inc.
    Inventors: Venkat Mattela, Sanghamitra Debroy, Santhosh Sivasubramani, Amit Acharyya