Patents by Inventor Dhani Reddy Sreenivasula Reddy

Dhani Reddy Sreenivasula Reddy 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: 10783956
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: September 22, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dinesh Chandra, Eswararao Potladhurthi, Dhani Reddy Sreenivasula Reddy, Krishnan S. Rengarajan
  • Patent number: 10783958
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: September 22, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dinesh Chandra, Eswararao Potladhurthi, Dhani Reddy Sreenivasula Reddy, Krishnan S. Rengarajan
  • Patent number: 10672439
    Abstract: The present disclosure relates to a structure which includes at least one keeper circuit which is configured to hold data to a precharged state during a first operation and be disabled during a second operation.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: June 2, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Dhani Reddy Sreenivasula Reddy, Md Nadeem Iqbal
  • Publication number: 20200020370
    Abstract: The present disclosure relates to a structure which includes at least one keeper circuit which is configured to hold data to a precharged state during a first operation and be disabled during a second operation.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: Dhani Reddy SREENIVASULA REDDY, Md Nadeem IQBAL
  • Publication number: 20190304536
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Application
    Filed: April 19, 2019
    Publication date: October 3, 2019
    Inventors: Dinesh CHANDRA, Eswararao POTLADHURTHI, Dhani Reddy Sreenivasula REDDY, Krishnan S. RENGARAJAN
  • Publication number: 20190267053
    Abstract: The present disclosure relates to a structure which includes an assist circuit which is configured to add a boost voltage using a common boost logic device for both a read logic circuit and a write logic circuit of the assist circuit.
    Type: Application
    Filed: February 27, 2018
    Publication date: August 29, 2019
    Inventors: Dhani Reddy SREENIVASULA REDDY, Vinay BHAT SOORI
  • Patent number: 10381054
    Abstract: The present disclosure relates to a structure which includes an assist circuit which is configured to add a boost voltage using a common boost logic device for both a read logic circuit and a write logic circuit of the assist circuit.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: August 13, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Dhani Reddy Sreenivasula Reddy, Vinay Bhat Soori
  • Patent number: 10319431
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: June 11, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dinesh Chandra, Eswararao Potladhurthi, Dhani Reddy Sreenivasula Reddy, Krishnan S. Rengarajan
  • Publication number: 20190147946
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Inventors: Dinesh CHANDRA, Eswararao POTLADHURTHI, Dhani Reddy Sreenivasula REDDY, Krishnan S. RENGARAJAN
  • Patent number: 10217510
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 26, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dinesh Chandra, Eswararao Potladhurthi, Dhani Reddy Sreenivasula Reddy, Krishnan S. Rengarajan
  • Patent number: 10199095
    Abstract: A structure includes a write bit switch device which includes a plurality of bit switch devices positioned at different positions of a memory cell array, and which is configured to enable write operations at a specified number of cells per bit line using a strapped bit line on a selected column of the memory cell array.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: February 5, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Dhani Reddy Sreenivasula Reddy, Venkatraghavan Bringivijayaraghavan, Vinay Bhat Soori
  • Patent number: 9984742
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: May 29, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dinesh Chandra, Eswararao Potladhurthi, Dhani Reddy Sreenivasula Reddy, Krishnan S. Rengarajan
  • Publication number: 20180130522
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 10, 2018
    Inventors: Dinesh CHANDRA, Eswararao POTLADHURTHI, Dhani Reddy Sreenivasula REDDY, Krishnan S. RENGARAJAN
  • Publication number: 20180068717
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Application
    Filed: October 31, 2017
    Publication date: March 8, 2018
    Inventors: Dinesh CHANDRA, Eswararao POTLADHURTHI, Dhani Reddy Sreenivasula REDDY, Krishnan S. RENGARAJAN
  • Patent number: 9847119
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: December 19, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dinesh Chandra, Eswararao Potladhurthi, Dhani Reddy Sreenivasula Reddy, Krishnan S. Rengarajan
  • Publication number: 20170004876
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 5, 2017
    Inventors: Dinesh CHANDRA, Eswararao POTLADHURTHI, Dhani Reddy Sreenivasula REDDY, Krishnan S. RENGARAJAN
  • Patent number: 9496025
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: November 15, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dinesh Chandra, Eswararao Potladhurthi, Dhani Reddy Sreenivasula Reddy, Krishnan S. Rengarajan
  • Publication number: 20160232966
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 11, 2016
    Inventors: Dinesh CHANDRA, Eswararao POTLADHURTHI, Dhani Reddy Sreenivasula REDDY, Krishnan S. RENGARAJAN
  • Publication number: 20160203857
    Abstract: An apparatus and method are provided for implementing write assist with boost attenuation for static random access memory (SRAM) arrays. The apparatus includes a memory array comprising a plurality of SRAM cells. The apparatus further includes a write driver connected to each of a differential pair of bit lines in each of the plurality of SRAM cells of the memory array. The apparatus further includes a write assist attenuation circuit connected to the write driver, the write assist attenuation circuit comprising a clamping device configured to modify a control signal as a function of supply voltage and process to attenuate an amount of boost applied to pull one of the bit lines below ground in an active phase of a write cycle.
    Type: Application
    Filed: January 12, 2015
    Publication date: July 14, 2016
    Inventors: Dinesh CHANDRA, Eswararao POTLADHURTHI, Dhani Reddy Sreenivasula REDDY, Krishnan S. RENGARAJAN
  • Patent number: 9208859
    Abstract: A memory circuit configured for reducing dynamic read power is disclosed that includes a first read global bit line connected to a first sense amp and a second read global bit line connected to a second sense amp. The second read global bit line is adjacent to the first read global bit line. The memory circuit further includes a third read global bit line and logic circuitry connected to the first read global bit line, the second read global bit line, and the third read global bit line. The logic circuitry is configured to determine when both the first read global bit line and the second read global bit line are evaluated as in a high state, and in response to the determining, toggle the third read global bit line to the high state.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: December 8, 2015
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Venkatraghavan Bringivijayaraghavan, Dhani Reddy Sreenivasula Reddy