Patents by Inventor Rajesh Reddy Tummuru

Rajesh Reddy Tummuru 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: 20250079343
    Abstract: Embodiments of the disclosure provide a structure and related method for a gate over semiconductor regions that are not aligned. Structures according to the disclosure include a first semiconductor region extending from a first widthwise end to a second widthwise end within a substrate. A second semiconductor region is adjacent the first semiconductor region and extends from a first widthwise end to a second widthwise end within the substrate. The second widthwise end of the second semiconductor region is non-aligned with the second widthwise end of the first semiconductor region. A gate structure is over the substrate and extends widthwise over the first semiconductor region and the second semiconductor region.
    Type: Application
    Filed: August 31, 2023
    Publication date: March 6, 2025
    Inventors: David Charles Pritchard, Ramesh Raghavan, Thirunavukkarasu Ranganathan, Rajesh Reddy Tummuru, Benoit Francois Claude Ramadout, Luca Pirro
  • Patent number: 11056208
    Abstract: The present disclosure relates to a data dependent sense amplifier with symmetric margining. In particular, the present disclosure relates to a structure including a bias generator circuit that is configured to provide symmetric margining between two logic states of a memory circuit.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: July 6, 2021
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Balaji Jayaraman, Ramesh Raghavan, Rajesh Reddy Tummuru, Toshiaki Kirihata
  • Patent number: 9786333
    Abstract: A multi-time programmable memory (MTPM) memory cell and method of operating. Each MTPM bit cell including a first FET transistor and a second FET transistor having a first common connection, and said second FET transistor and a third FET transistor having a second common connection, said first and second connected FET transistors programmable to store a first bit value, and said second FET and said third connected FET transistors programmable to store a second bit value, wherein said first FET transistor exhibits a low threshold voltage value (LVT), said second FET transistor exhibits an elevated threshold voltage value HVT and said third FET transistor exhibits a threshold value LVT lower than HVT. The MTPM cell enables two bits of information to be stored as default bit values like an electrical fuse. To store opposite bit values, the LVT transistors are programmed such that their threshold voltage is higher than that of HVT.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 10, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Ramesh Raghavan, Balaji Jayaraman, Janakiraman Viraraghavan, Thejas Kempanna, Rajesh Reddy Tummuru, Toshiaki Kirihata
  • Publication number: 20170206938
    Abstract: A multi-time programmable memory (MTPM) memory cell and method of operating. Each MTPM bit cell including a first FET transistor and a second FET transistor having a first common connection, and said second FET transistor and a third FET transistor having a second common connection, said first and second connected FET transistors programmable to store a first bit value, and said second FET and said third connected FET transistors programmable to store a second bit value, wherein said first FET transistor exhibits a low threshold voltage value (LVT), said second FET transistor exhibits an elevated threshold voltage value HVT and said third FET transistor exhibits a threshold value LVT lower than HVT. The MTPM cell enables two bits of information to be stored as default bit values like an electrical fuse. To store opposite bit values, the LVT transistors are programmed such that their threshold voltage is higher than that of HVT.
    Type: Application
    Filed: April 4, 2017
    Publication date: July 20, 2017
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Ramesh Raghavan, Balaji Jayaraman, Janakiraman Viraraghavan, Thejas Kempanna, Rajesh Reddy Tummuru, Toshiaki Kirihata
  • Publication number: 20170162234
    Abstract: A multi-time programmable memory (MTPM) memory cell and method of operating. Each MTPM bit cell including a first FET transistor and a second FET transistor having a first common connection, and said second FET transistor and a third FET transistor having a second common connection, said first and second connected FET transistors programmable to store a first bit value, and said second FET and said third connected FET transistors programmable to store a second bit value, wherein said first FET transistor exhibits a low threshold voltage value (LVT), said second FET transistor exhibits an elevated threshold voltage value HVT and said third FET transistor exhibits a threshold value LVT lower than HVT. The MTPM cell enables two bits of information to be stored as default bit values like an electrical fuse. To store opposite bit values, the LVT transistors are programmed such that their threshold voltage is higher than that of HVT.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 8, 2017
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Ramesh Raghavan, Balaji Jayaraman, Janakiraman Viraraghavan, Thejas Kempanna, Rajesh Reddy Tummuru, Toshiaki Kirihata
  • Patent number: 9659604
    Abstract: A multi-time programmable memory (MTPM) memory cell and method of operating. Each MTPM bit cell including a first FET transistor and a second FET transistor having a first common connection, and said second FET transistor and a third FET transistor having a second common connection, said first and second connected FET transistors programmable to store a first bit value, and said second FET and said third connected FET transistors programmable to store a second bit value, wherein said first FET transistor exhibits a low threshold voltage value (LVT), said second FET transistor exhibits an elevated threshold voltage value HVT and said third FET transistor exhibits a threshold value LVT lower than HVT. The MTPM cell enables two bits of information to be stored as default bit values like an electrical fuse. To store opposite bit values, the LVT transistors are programmed such that their threshold voltage is higher than that of HVT.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 23, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Ramesh Raghavan, Balaji Jayaraman, Janakiraman Viraraghavan, Thejas Kempanna, Rajesh Reddy Tummuru, Toshiaki Kirihata