Patents by Inventor Yadhu Vamshi Vancha

Yadhu Vamshi Vancha 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: 10832770
    Abstract: Apparatuses, systems, methods, and computer program products are disclosed for a single pulse memory operation. An electrical source is configured to generate an electrical pulse. A selector for a memory cell is configured to conduct an electrical pulse from an electrical source to a memory cell in response to the electrical pulse exceeding a threshold. A control circuit is configured to maintain at least an operational level for the electrical pulse for a predefined time period to perform an operation on the memory cell.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: November 10, 2020
    Assignee: SanDisk Technologies LLC
    Inventors: Ali Al-Shamma, Yadhu Vamshi Vancha, Jeffrey Lee
  • Patent number: 10803912
    Abstract: A circuit or associated system or apparatus includes a first transistor, a second transistor, a first switch, a second switch, a first current source, and a third switch. The first transistor is configured to sample a first current of a control line. The second transistor is configured to apply a second current to the control line. The second transistor is also configured to match the second current to the first current. The first switch is connected in series between a control terminal of the first transistor and a control terminal of the second transistor. The second switch is connected in series between the second transistor and the control line. The third switch is connected in series between the first current source and the control line.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: October 13, 2020
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Yadhu Vamshi Vancha, Ali Al-Shamma, Yingchang Chen, Jeffrey Lee, Tz-Yi Liu
  • Publication number: 20200294584
    Abstract: Apparatuses, systems, methods, and computer program products are disclosed for a single pulse memory operation. An electrical source is configured to generate an electrical pulse. A selector for a memory cell is configured to conduct an electrical pulse from an electrical source to a memory cell in response to the electrical pulse exceeding a threshold. A control circuit is configured to maintain at least an operational level for the electrical pulse for a predefined time period to perform an operation on the memory cell.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 17, 2020
    Applicant: SanDisk Technologies LLC
    Inventors: ALI AL-SHAMMA, YADHU VAMSHI VANCHA, JEFFREY LEE
  • Patent number: 10734048
    Abstract: One or more control lines other than those used to activate a non-volatile memory cell may be used to sense a data value of the cell. For example, an apparatus may include a selection circuit that selects, based on an address corresponding to a non-volatile memory cell included an array of non-volatile memory cells, a word line coupled to the non-volatile memory cells to activate the non-volatile memory cell. An amplifier circuit may sense a data value stored in the non-volatile memory cell based on a sense signal having a voltage level based on voltage levels of one or more other word lines of the array of non-volatile memory cells. In another example, a data value of a non-volatile memory cell coupled to a word line may be sensed based on the voltage levels of one or more dummy sense lines within the array.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: August 4, 2020
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Yadhu Vamshi Vancha, James Hart, Jeffrey Koon Yee Lee, Tz-Yi Liu, Ali Al-Shamma, Yingchang Chen
  • Publication number: 20200234743
    Abstract: A circuit or associated system or apparatus includes a first transistor, a second transistor, a first switch, a second switch, a first current source, and a third switch. The first transistor is configured to sample a first current of a control line. The second transistor is configured to apply a second current to the control line. The second transistor is also configured to match the second current to the first current. The first switch is connected in series between a control terminal of the first transistor and a control terminal of the second transistor. The second switch is connected in series between the second transistor and the control line. The third switch is connected in series between the first current source and the control line.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 23, 2020
    Inventors: Yadhu Vamshi Vancha, Ali Al-Shamma, Yingchang Chen, Jeffrey Lee, Tz-Yi Liu
  • Publication number: 20190371380
    Abstract: One or more control lines other than those used to activate a non-volatile memory cell may be used to sense a data value of the cell. For example, an apparatus may include a selection circuit that selects, based on an address corresponding to a non-volatile memory cell included an array of non-volatile memory cells, a word line coupled to the non-volatile memory cells to activate the non-volatile memory cell. An amplifier circuit may sense a data value stored in the non-volatile memory cell based on a sense signal having a voltage level based on voltage levels of one or more other word lines of the array of non-volatile memory cells. In another example, a data value of a non-volatile memory cell coupled to a word line may be sensed based on the voltage levels of one or more dummy sense lines within the array.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 5, 2019
    Inventors: Yadhu Vamshi Vancha, James Hart, Jeffrey Koon Yee Lee, Tz-Yi Liu, Ali Al-Shamma, Yingchang Chen