Patents by Inventor Jayasree Nayar

Jayasree Nayar 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: 11735267
    Abstract: A system includes a memory device and a processing device, operatively coupled with the memory device. The processing device is configured to perform operations that include determining a verify reference voltage associated with a logic state of a memory cell of the memory device, the verify reference voltage defining a target voltage level of a threshold voltage associated with the logic state; determining an amount of voltage compensation based on a thermal profile associated with a heat to be applied to the memory device, the thermal profile comprising a temperature associated with the heat and a period of time the heat is to be applied to the memory device; and updating the verify reference voltage using the amount of voltage compensation for an expected shift in the threshold voltage of the memory cell after the heat is applied to the memory device.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: August 22, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Ji-Hye Shin, Foroozan S. Koushan, Tomoko Iwasaki, Jayasree Nayar
  • Patent number: 11694727
    Abstract: Memory devices might include an array of memory cells, a plurality of access lines, and a heater. The array of memory cells might include a plurality of strings of series-connected memory cells. Each access line of the plurality of access lines might be connected to a control gate of a respective memory cell of each string of series-connected memory cells of the plurality of strings of series-connected memory cells. The heater might be adjacent to an end of each access line of the plurality of access lines.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: July 4, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Tomoko Ogura Iwasaki, Foroozan Koushan, Jayasree Nayar, Ji-Hye Gale Shin
  • Publication number: 20220351755
    Abstract: Memory devices might include an array of memory cells, a plurality of access lines, and a heater. The array of memory cells might include a plurality of strings of series-connected memory cells. Each access line of the plurality of access lines might be connected to a control gate of a respective memory cell of each string of series-connected memory cells of the plurality of strings of series-connected memory cells. The heater might be adjacent to an end of each access line of the plurality of access lines.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 3, 2022
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Tomoko Ogura Iwasaki, Foroozan Koushan, Jayasree Nayar, Ji-Hye Gale Shin
  • Patent number: 11417368
    Abstract: Memory devices might include an array of memory cells, a plurality of access lines, and a heater. The array of memory cells might include a plurality of strings of series-connected memory cells. Each access line of the plurality of access lines might be connected to a control gate of a respective memory cell of each string of series-connected memory cells of the plurality of strings of series-connected memory cells. The heater might be adjacent to an end of each access line of the plurality of access lines.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: August 16, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Tomoko Ogura Iwasaki, Foroozan Koushan, Jayasree Nayar, Ji-Hye Gale Shin
  • Publication number: 20220189512
    Abstract: Memory devices might include an array of memory cells, a plurality of access lines, and a heater. The array of memory cells might include a plurality of strings of series-connected memory cells. Each access line of the plurality of access lines might be connected to a control gate of a respective memory cell of each string of series-connected memory cells of the plurality of strings of series-connected memory cells. The heater might be adjacent to an end of each access line of the plurality of access lines.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 16, 2022
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Tomoko Ogura Iwasaki, Foroozan Koushan, Jayasree Nayar, Ji-Hye Gale Shin
  • Publication number: 20210343346
    Abstract: A system includes a memory device and a processing device, operatively coupled with the memory device. The processing device is configured to perform operations that include determining a verify reference voltage associated with a logic state of a memory cell of the memory device, the verify reference voltage defining a target voltage level of a threshold voltage associated with the logic state; determining an amount of voltage compensation based on a thermal profile associated with a heat to be applied to the memory device, the thermal profile comprising a temperature associated with the heat and a period of time the heat is to be applied to the memory device; and updating the verify reference voltage using the amount of voltage compensation for an expected shift in the threshold voltage of the memory cell after the heat is applied to the memory device.
    Type: Application
    Filed: July 12, 2021
    Publication date: November 4, 2021
    Inventors: Ji-Hye Shin, Foroozan S. Koushan, Tomoko Iwasaki, Jayasree Nayar
  • Patent number: 11069412
    Abstract: A logic state to be stored at a memory cell of a memory device is determined, where the logic state is to be represented by a threshold voltage stored at the memory cell. A verify reference voltage associated with the logic state is determined. The verify reference voltage defines a target voltage level of the threshold voltage associated with the logic state. The verify reference voltage is updated using an amount of compensation for an expected shift in the threshold voltage of the memory cell after heat is applied to the memory device. Before the heat is applied to the memory device, a plurality of sets of multiple programming pulses to the memory cell is applied until a threshold condition is satisfied. The threshold condition is associated with a relative magnitude of the threshold voltage of the memory cell to the updated verify reference voltage.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: July 20, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Ji-Hye Shin, Foroozan S. Koushan, Tomoko Iwasaki, Jayasree Nayar
  • Publication number: 20210183448
    Abstract: A logic state to be stored at a memory cell of a memory device is determined, where the logic state is to be represented by a threshold voltage stored at the memory cell. A verify reference voltage associated with the logic state is determined. The verify reference voltage defines a target voltage level of the threshold voltage associated with the logic state. The verify reference voltage is updated using an amount of compensation for an expected shift in the threshold voltage of the memory cell after heat is applied to the memory device. Before the heat is applied to the memory device, a plurality of sets of multiple programming pulses to the memory cell is applied until a threshold condition is satisfied. The threshold condition is associated with a relative magnitude of the threshold voltage of the memory cell to the updated verify reference voltage.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Inventors: Ji-Hye Shin, Foroozan S. Koushan, Tomoko Iwasaki, Jayasree Nayar