Patents by Inventor Saurabh Porwal

Saurabh Porwal 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: 11574675
    Abstract: A static random access memory (SRAM) system includes a plurality of SRAM storage cells, each of the plurality of SRAM storage cells coupled to a respective read bit line, and a dynamic keeper coupled to the read bit line. The dynamic keeper includes a first keeper to support a read operation at a first temperature range, and a second keeper to support the read operation at a second temperature range, and a temperature-sensitive control circuit to select the first keeper or the second keeper based on temperature.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: February 7, 2023
    Assignee: Synopsys, Inc.
    Inventors: Vinay Kumar, Saurabh Porwal, Sudhir Kumar, Madhav Mansukh Padaliya, Amit Khanuja
  • Patent number: 11062766
    Abstract: A structure for an integrated circuit is disclosed for storing data. The integrated circuit includes a memory cell array of bit cells configured in a static random access memory (SRAM) architecture. The memory cell array is coupled to wordlines arranged in rows that control operations such as Read and Write operations. To enhance the read sensing margin of the SRAM configuration, the read port of a bit cell may include a wordline that drives two transistors (e.g., a PMOS and an NMOS transistor) to reduce data-dependent current leakage from a read bitline. An additional weak transistor keeper configuration may be used in the integrated circuit to compensate for current leakage from the read bitline. For example, a weak NMOS keeper that includes a sense amplifier, an inverter, and an NMOS connected to supply voltage VDD provides a path between the read bitline and VDD through the weak NMOS keeper.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: July 13, 2021
    Assignee: Synopsys, Inc.
    Inventors: M. Sultan M. Siddiqui, Sudhir Kumar Sharma, Saurabh Porwal, Khatik Bhagvan Pannalal, Sudhir Kumar
  • Publication number: 20210193219
    Abstract: A static random access memory (SRAM) system includes a plurality of SRAM storage cells, each of the plurality of SRAM storage cells coupled to a respective read bit line, and a dynamic keeper coupled to the read bit line. The dynamic keeper includes a first keeper to support a read operation at a first temperature range, and a second keeper to support the read operation at a second temperature range, and a temperature-sensitive control circuit to select the first keeper or the second keeper based on temperature.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 24, 2021
    Applicant: Synopsys, Inc.
    Inventors: Vinay Kumar, Saurabh Porwal, Sudhir Kumar, Madhav Mansukh Padaliya, Amit Khanuja
  • Publication number: 20200219558
    Abstract: A structure for an integrated circuit is disclosed for storing data. The integrated circuit includes a memory cell array of bit cells configured in a static random access memory (SRAM) architecture. The memory cell array is coupled to wordlines arranged in rows that control operations such as Read and Write operations. To enhance the read sensing margin of the SRAM configuration, the read port of a bit cell may include a wordline that drives two transistors (e.g., a PMOS and an NMOS transistor) to reduce data-dependent current leakage from a read bitline. An additional weak transistor keeper configuration may be used in the integrated circuit to compensate for current leakage from the read bitline. For example, a weak NMOS keeper that includes a sense amplifier, an inverter, and an NMOS connected to supply voltage VDD provides a path between the read bitline and VDD through the weak NMOS keeper.
    Type: Application
    Filed: January 3, 2020
    Publication date: July 9, 2020
    Inventors: M. Sultan M. Siddiqui, Sudhir Kumar Sharma, Saurabh Porwal, Khatik Bhagvan Pannalal, Sudhir Kumar