Patents by Inventor Hemant Dixit

Hemant Dixit 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).

  • Publication number: 20250140674
    Abstract: A package for multiple integrated circuit dies (e.g., chips). Various common couplers are layered between the chips and package contacts of the package. Each of the chips has a planar surface (e.g., a flat top surface) along which the chips include die contacts. The common couplers lie along the planar surface of each of the chips, and electrically connects the die contacts of the chips to the package contacts of the package. This allows the chips, the common couplers, and the package contacts to be stacked together to form a relatively thin, compact package. The common couplers connect the die contacts of any particular type to the corresponding package contacts of that particular type, such that the die contacts need not have the same layout as the package contacts, thus allowing packages with the same package contact layouts to be used to package chips with varying die contact layouts.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 1, 2025
    Inventors: Marco A. ZUNIGA, Mihalis MICHAEL, Thomas William MACELWEE, Vineet UNNI, Abhinandan Hemant DIXIT, Mohammad Shafayet ZAMIL, Farzin NAJAFI
  • Publication number: 20250140665
    Abstract: A package for an integrated circuit die (e.g., a chip). A routing layer is layered between the chip and package contacts of the package. The chip has a planar surface along which the chip includes die contacts. The routing layer lies along the planar surface of the chip, and electrically connects the die contacts of the chip to the package contacts of the package. This allows the chip, the routing layer, and the package contacts to be stacked together to form a relatively thin, compact package. The routing layer connects the die contacts of the chip to the package contacts of the package, such that the die contacts need not have the same layout as the package contacts, thus allowing packages with the same package contact layouts to be used to package chips with varying die contact layouts. A lead in conductive contact with the package contact.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 1, 2025
    Inventors: Mihalis MICHAEL, Farzin NAJAFI, Mohammad Shafayet ZAMIL, Abhinandan Hemant DIXIT
  • Publication number: 20250133762
    Abstract: A transistor structure that includes a biased substrate. The transistor structure comprises a barrier semiconductor layer and a channel semiconductor layer immediately beneath the barrier semiconductor layer to form a heterojunction interface with the barrier semiconductor layer, the heterojunction inducing a two-dimensional electron gas (2DEG) within the channel semiconductor layer. A semiconductor substrate is beneath and rigidly coupled to the channel semiconductor layer and the barrier semiconductor layer. A substrate contact layer is disposed immediately beneath the semiconductor substrate. The substrate contact layer is electrically disconnected from the source contact to allow for a different voltage to be applied to the substrate contact layer as compared to the source contact. A biasing circuit is configured to bias the substrate contact layer.
    Type: Application
    Filed: October 24, 2023
    Publication date: April 24, 2025
    Inventors: Iman ABDALI MASHHADI, Mohammad BOZORGI, Vineet UNNI, Thomas William MACELWEE, Abhinandan Hemant DIXIT, Marco A. ZUNIGA
  • Publication number: 20250133837
    Abstract: A monolithic implementation of an integrated circuit that includes a power transistor and a biasing circuit for biasing the substrate of the power transistor. For example, the integrated circuit comprises a semiconductor substrate; and an epitaxial stack epitaxially grown on the semiconductor substrate. A power transistor uses a portion of the epitaxial stack including a portion of the channel semiconductor layer and a portion of the barrier semiconductor layer. Furthermore, a biasing circuit includes circuit elements that use a respective portion of the epitaxial stack including a respective portion of the channel semiconductor layer and a portion of the barrier semiconductor layer. The biasing circuit is configured to bias a portion of the semiconductor substrate beneath the power transistor.
    Type: Application
    Filed: October 24, 2023
    Publication date: April 24, 2025
    Inventors: Iman ABDALI MASHHADI, Mohammad BOZORGI, Vineet UNNI, Thomas William MACELWEE, Abhinandan Hemant DIXIT, Marco A. ZUNIGA
  • Patent number: 12174420
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes an optical component having a waveguide core, and multiple features positioned adjacent to the waveguide core. The waveguide core contains a first material having a first thermal conductivity, and the features contain a second material having a second thermal conductivity that is greater than the first thermal conductivity.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: December 24, 2024
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Yusheng Bian, Hemant Dixit, Theodore Letavic
  • Publication number: 20240292758
    Abstract: A shield structure for a semiconductor chip comprises a chip mounting region on a base plate and a shell connected to the base plate. The shell is arranged over the base plate to provide a chamber having a volume, and the chip mounting region is arranged within the volume.
    Type: Application
    Filed: February 27, 2023
    Publication date: August 29, 2024
    Inventors: VINAYAK BHARAT NAIK, HEMANT DIXIT, ZISHAN ALI SYED MOHAMMED
  • Publication number: 20240061173
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes an optical component having a waveguide core, and multiple features positioned adjacent to the waveguide core. The waveguide core contains a first material having a first thermal conductivity, and the features contain a second material having a second thermal conductivity that is greater than the first thermal conductivity.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Inventors: Yusheng Bian, Hemant Dixit, Theodore Letavic
  • Patent number: 11846804
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes an optical component having a waveguide core, and multiple features positioned adjacent to the waveguide core. The waveguide core contains a first material having a first thermal conductivity, and the features contain a second material having a second thermal conductivity that is greater than the first thermal conductivity.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: December 19, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Yusheng Bian, Hemant Dixit, Theodore Letavic
  • Patent number: 11828984
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes a substrate, an optical component including a waveguide core, and a back-end-of-line stack including a heat spreader layer. The optical component is positioned in a vertical direction between the substrate and the back-end-of-line stack. The waveguide core contains a first material having a first thermal conductivity, and the heat spreader layer contains a second material having a second thermal conductivity that is greater than the first thermal conductivity of the first material.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: November 28, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Theodore Letavic, Yusheng Bian, Hemant Dixit
  • Patent number: 11822120
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes a waveguide core and a back-end-of-line stack including a first metallization level, a second metallization level, and a heat sink having a metal feature in the second metallization level. The heat sink is positioned adjacent to a section of the waveguide core. The first metallization level including a dielectric layer positioned between the metal feature and the section of the waveguide core.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: November 21, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Hemant Dixit, Yusheng Bian, Theodore Letavic
  • Publication number: 20230266529
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes a waveguide core and a back-end-of-line stack including a first metallization level, a second metallization level, and a heat sink having a metal feature in the second metallization level. The heat sink is positioned adjacent to a section of the waveguide core. The first metallization level including a dielectric layer positioned between the metal feature and the section of the waveguide core.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 24, 2023
    Inventors: Hemant Dixit, Yusheng Bian, Theodore Letavic
  • Publication number: 20230266530
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes an optical component having a waveguide core, and multiple features positioned adjacent to the waveguide core. The waveguide core contains a first material having a first thermal conductivity, and the features contain a second material having a second thermal conductivity that is greater than the first thermal conductivity.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 24, 2023
    Inventors: Yusheng Bian, Hemant Dixit, Theodore Letavic
  • Publication number: 20230266533
    Abstract: Structures including an optical component and methods of fabricating a structure including an optical component. The structure includes a substrate, an optical component including a waveguide core, and a back-end-of-line stack including a heat spreader layer. The optical component is positioned in a vertical direction between the substrate and the back-end-of-line stack. The waveguide core contains a first material having a first thermal conductivity, and the heat spreader layer contains a second material having a second thermal conductivity that is greater than the first thermal conductivity of the first material.
    Type: Application
    Filed: February 24, 2022
    Publication date: August 24, 2023
    Inventors: Theodore Letavic, Yusheng Bian, Hemant Dixit
  • Patent number: 11682514
    Abstract: An illustrative memory cell disclosed herein includes a bottom electrode, a top electrode positioned above the bottom electrode and an MTJ (Magnetic Tunnel Junction) structure positioned above the bottom electrode and below the top electrode. In this example, the MTJ structure includes a first ferromagnetic material layer positioned above the bottom electrode, a non-magnetic insulation layer positioned above the first ferromagnetic material layer and a second ferromagnetic material layer positioned on the non-magnetic insulation layer, wherein there is a curved, non-planar interface between the non-magnetic insulation layer and the ferromagnetic material layer.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: June 20, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Hemant Dixit, Vinayak Bharat Naik, Kazutaka Yamane
  • Patent number: 11538856
    Abstract: One illustrative MRAM cell disclosed herein includes a bottom electrode, a top electrode positioned above the bottom electrode and an MTJ (Magnetic Tunnel Junction) element positioned above the bottom electrode and below the top electrode. In this example, the MTJ element includes a bottom insulation layer positioned above the bottom electrode, a top insulation layer positioned above the bottom electrode; and a first ferromagnetic material layer positioned between the bottom insulation layer and the top insulation layer.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: December 27, 2022
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Hemant Dixit, Vinayak Bharat Naik
  • Publication number: 20220367790
    Abstract: Structures for a non-volatile memory element and methods of forming a structure for a non-volatile memory element. The structure includes a non-volatile memory element having a magnetic-tunneling-junction layer stack. The magnetic-tunneling-junction layer stack has a fixed layer that includes a synthetic antiferromagnetic layer. The structure further includes a via positioned adjacent to the magnetic-tunneling-junction layer stack. The via is comprised of a magnetic material.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 17, 2022
    Inventors: Vinayak Bharat Naik, Kazutaka Yamane, Hemant Dixit
  • Publication number: 20220059754
    Abstract: An illustrative memory cell disclosed herein includes a bottom electrode, a top electrode positioned above the bottom electrode and an MTJ (Magnetic Tunnel Junction) structure positioned above the bottom electrode and below the top electrode. In this example, the MTJ structure includes a first ferromagnetic material layer positioned above the bottom electrode, a non-magnetic insulation layer positioned above the first ferromagnetic material layer and a second ferromagnetic material layer positioned on the non-magnetic insulation layer, wherein there is a curved, non-planar interface between the non-magnetic insulation layer and the ferromagnetic material layer.
    Type: Application
    Filed: August 19, 2020
    Publication date: February 24, 2022
    Inventors: Hemant Dixit, Vinayak Bharat Naik, Kazutaka Yamane
  • Patent number: 11217424
    Abstract: In APT systems and methods, a sample is analyzed by concurrently applying different types of energy to the tip of the sample, thereby causing atom evaporation from the end of the tip. Evaporated atoms are analyzed to determine chemical nature and original position information, which is used to generate a compositional profile. To ensure an accurate profile, the applied energy includes: a D.C. voltage, which lowers the critical energy level (Q) for atom evaporation; first laser pulses, which are applied to opposing first sides of the tip near the end to further lower Q and which are phase-shifted so resulting standing wave patterns of heat distribution have energy maxima that are offset and below a threshold to avoid damage to tip side surfaces; and second laser pulse(s), which is/are applied to second side(s) of the tip near the distal end to reach Q and cause atom evaporation from the end.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 4, 2022
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Jay Mody, Hemant Dixit
  • Publication number: 20210359000
    Abstract: One illustrative MRAM cell disclosed herein includes a bottom electrode, a top electrode positioned above the bottom electrode and an MTJ (Magnetic Tunnel Junction) element positioned above the bottom electrode and below the top electrode. In this example, the MTJ element includes a bottom insulation layer positioned above the bottom electrode, a top insulation layer positioned above the bottom electrode; and a first ferromagnetic material layer positioned between the bottom insulation layer and the top insulation layer.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 18, 2021
    Inventors: Hemant Dixit, Vinayak Bharat Naik
  • Publication number: 20210356429
    Abstract: In APT systems and methods, a sample is analyzed by concurrently applying different types of energy to the tip of the sample, thereby causing atom evaporation from the end of the tip. Evaporated atoms are analyzed to determine chemical nature and original position information, which is used to generate a compositional profile. To ensure an accurate profile, the applied energy includes: a D.C. voltage, which lowers the critical energy level (Q) for atom evaporation; first laser pulses, which are applied to opposing first sides of the tip near the end to further lower Q and which are phase-shifted so resulting standing wave patterns of heat distribution have energy maxima that are offset and below a threshold to avoid damage to tip side surfaces; and second laser pulse(s), which is/are applied to second side(s) of the tip near the distal end to reach Q and cause atom evaporation from the end.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 18, 2021
    Applicant: GLOBALFOUNDRIES U.S. Inc.
    Inventors: Jay Mody, Hemant Dixit