Patents by Inventor Sanjeev Kumar Jain

Sanjeev Kumar Jain 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: 20240135983
    Abstract: Circuits, systems, and methods are described herein for generating a boost voltage for a write operation of a memory cell. In one embodiment, a boost circuit includes a first inverter and a second inverter, each configured to invert a write signal. The boost circuit also includes a transistor and a capacitor. The transistor is coupled to an output of the first inverter. The transistor is configured to charge a capacitor based on the write signal and provide a supply voltage to a write driver. The capacitor is coupled to an output of the second inverter. The capacitor is configured to generate and provide a delta voltage to the write driver.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Inventor: Sanjeev Kumar Jain
  • Patent number: 11935589
    Abstract: Systems and methods are provided for controlling a wake-up operation of a memory circuit. The memory circuit is configured to precharge the bit lines of a memory array sequentially during wakeup. A sleep signal is received by the first bit line of a memory cell and then a designed delay occurs prior to the precharge of a second complementary bit line. The sleep signal may then precharge the bit lines of a second memory cell with further delay between the precharge of each bit line. The memory circuit is configured to precharge both bit lines of a memory cell at the same time when an operation associated with that cell is designated.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: March 19, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sanjeev Kumar Jain, Ruchin Jain, Arun Achyuthan, Atul Katoch
  • Publication number: 20240087618
    Abstract: Disclosed herein are related to reducing power consumption of a memory device when transitioning from a sleep state to an operational state. In one aspect, the memory device includes a memory cell to store data. In one aspect, the memory device includes an output driver configured to: generate an output signal indicating the stored data, in response to a sleep tracking signal indicating that the memory cell is in the operational state, and generate the output signal having a predetermined voltage irrespective of the stored data, in response to the sleep tracking signal indicating that the memory cell is in the sleep state. In one aspect, the sleep tracking signal is delayed from a sleep control signal causing the memory cell to operate in the sleep state or the operational state.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sanjeev Kumar Jain, Atul Katoch
  • Patent number: 11929110
    Abstract: A memory circuit includes a global control circuit, a first local control circuit, and a first set of word line post-decoder circuits coupled to a first set of memory cells that is configured to store a first set of data. The global control circuit is configured to generate a first and second set of global pre-decoder signals, and a first set of local address signals. The first local control circuit includes a first set of repeater circuits and a first clock pre-decoder circuit. The first set of repeater circuits is configured to generate a first and second set of local pre-decoder signals in response to the corresponding first and second set of global pre-decoder signals. The first clock pre-decoder circuit is configured to generate a first and second set of clock signals in response to the first set of local address signals and the first clock signal.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: March 12, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Sanjeev Kumar Jain, Ishan Khera, Atul Katoch
  • Publication number: 20240069794
    Abstract: Systems and method are provided for operating a multi-array memory that includes a left memory array and a right memory array of a memory bank. A command is received at memory input pins. A signal representative of the command is propagated to an array control inhibitor. An array inhibit command is received on one or more other pins of the memory and provided to the array control inhibitor. The array control inhibitor is used to prevent arrival of the command to one of the left memory array and the right memory array based on the array inhibit command.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Inventors: Sanjeev Kumar Jain, Cormac Michael O'Connell
  • Publication number: 20240071481
    Abstract: Systems and methods are provided for a memory device. A memory device includes a memory array, a column selection circuit coupled to the memory array, where the column selection circuit is configured to generate a column selection signal, and a sense amplifier configured to receive data signals from the memory array. An enable signal generating circuit is configured to generate a first enable signal and a second enable signal. The column selection circuit generates the column selection signal based on the first enable signal, and the sense amplifier is configured to receive a data signal from the memory array in response to the second enable signal.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Inventor: Sanjeev Kumar Jain
  • Patent number: 11915789
    Abstract: Systems and methods are provided for controlling a sleep operation for a memory array. A memory system may include a memory array with a memory cell and a word line driver, the memory array receiving a word line clock signal that enables and disables memory read and write operations of the memory cell. The memory array may further including a switching circuit coupled between the word line driver and a power source, the switching circuit being controlled by a local word line sleep signal to turn power to the word line driver on and off. A latch circuit may generate the local word line sleep signal in response to a delayed clock signal and one or more power management control signals. The word line clock signal and the delayed clock signal may both being generated as a function of a memory clock signal.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Sanjeev Kumar Jain
  • Patent number: 11881250
    Abstract: Circuits, systems, and methods are described herein for generating a boost voltage for a write operation of a memory cell. In one embodiment, a boost circuit includes a first inverter and a second inverter, each configured to invert a write signal. The boost circuit also includes a transistor and a capacitor. The transistor is coupled to an output of the first inverter. The transistor is configured to charge a capacitor based on the write signal and provide a supply voltage to a write driver. The capacitor is coupled to an output of the second inverter. The capacitor is configured to generate and provide a delta voltage to the write driver.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: January 23, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Sanjeev Kumar Jain
  • Patent number: 11875843
    Abstract: Systems and methods are provided for a memory device. A memory device includes a memory array, a column selection circuit coupled to the memory array, where the column selection circuit is configured to generate a column selection signal, and a sense amplifier configured to receive data signals from the memory array. An enable signal generating circuit is configured to generate a first enable signal and a second enable signal. The column selection circuit generates the column selection signal based on the first enable signal, and the sense amplifier is configured to receive a data signal from the memory array in response to the second enable signal.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: January 16, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Sanjeev Kumar Jain
  • Patent number: 11854587
    Abstract: Disclosed herein are related to reducing power consumption of a memory device when transitioning from a sleep state to an operational state. In one aspect, the memory device includes a memory cell to store data. In one aspect, the memory device includes an output driver configured to: generate an output signal indicating the stored data, in response to a sleep tracking signal indicating that the memory cell is in the operational state, and generate the output signal having a predetermined voltage irrespective of the stored data, in response to the sleep tracking signal indicating that the memory cell is in the sleep state. In one aspect, the sleep tracking signal is delayed from a sleep control signal causing the memory cell to operate in the sleep state or the operational state.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: December 26, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Sanjeev Kumar Jain, Atul Katoch
  • Patent number: 11847345
    Abstract: Systems and method are provided for operating a multi-array memory that includes a left memory array and a right memory array of a memory bank. A command is received at memory input pins. A signal representative of the command is propagated to an array control inhibitor. An array inhibit command is received on one or more other pins of the memory and provided to the array control inhibitor. The array control inhibitor is used to prevent arrival of the command to one of the left memory array and the right memory array based on the array inhibit command.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: December 19, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Sanjeev Kumar Jain, Cormac Michael O'Connell
  • Publication number: 20230386537
    Abstract: Systems and methods are provided for controlling a wake-up operation of a memory circuit. The memory circuit may include a memory array with a plurality of memory cells, first logic circuitry, first switching circuitry, first latch circuitry, and second switching circuitry. The first logic circuitry may be configured to generate a first bit line pre-charge signal for a first memory cell of the plurality of memory cells, where the first bit line pre-charge signal is generated in response to a sleep signal. The first switching circuitry may be configured to provide power to one or more bit line of the first memory cell in response to the first bit line pre-charge signal. The first latch circuit may receive the sleep signal and the first bit line pre-charge signal and generate a delayed sleep signal.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Inventors: Sanjeev Kumar Jain, Sahil Preet Singh, Atul Katoch
  • Publication number: 20230326492
    Abstract: Systems and methods are provided for controlling power down of an integrated dual rail memory circuit. The power down system is configured to power down the power rail for input and logic components (VDD) while maintaining power to the power rail for the memory cells (VDDM). The power down system includes two voltage rails, a clock generator, and a power detector for detecting the power on VDD. The power detector generates an isolated power signal when voltage on VDD is below a voltage threshold. The isolated power signal is configured to disable the clock generator and thus reduce dynamic power as the read/write cycle is not triggered during power down.
    Type: Application
    Filed: June 5, 2023
    Publication date: October 12, 2023
    Inventor: Sanjeev Kumar Jain
  • Publication number: 20230298662
    Abstract: Circuits and methods are described herein for controlling a bit line precharge circuit. For example, a control circuit includes a first latch circuit and a second latch circuit. The first latch circuit is configured to receive a first light sleep signal. The first latch circuit generates a second light sleep signal according to a clock signal. The second latch circuit is configured to receive the second light sleep signal. The second latch circuit generates a third light sleep signal according to a sense amplifier enable signal. The second latch circuit provides the third light sleep signal to a bit line reading switch, so the bit line reading switch is cutoff after a sense amplifier is enabled.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 21, 2023
    Inventor: Sanjeev Kumar Jain
  • Patent number: 11763863
    Abstract: Systems and methods are provided for controlling a wake-up operation of a memory circuit. The memory circuit may include a memory array with a plurality of memory cells, first logic circuitry, first switching circuitry, first latch circuitry, and second switching circuitry. The first logic circuitry may be configured to generate a first bit line pre-charge signal for a first memory cell of the plurality of memory cells, where the first bit line pre-charge signal is generated in response to a sleep signal. The first switching circuitry may be configured to provide power to one or more bit line of the first memory cell in response to the first bit line pre-charge signal. The first latch circuit may receive the sleep signal and the first bit line pre-charge signal and generate a delayed sleep signal.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: September 19, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sanjeev Kumar Jain, Sahil Preet Singh, Atul Katoch
  • Publication number: 20230223076
    Abstract: Systems and methods are provided for controlling a wake-up operation of a memory circuit. The memory circuit is configured to precharge the bit lines of a memory array sequentially during wakeup. A sleep signal is received by the first bit line of a memory cell and then a designed delay occurs prior to the precharge of a second complementary bit line. The sleep signal may then precharge the bit lines of a second memory cell with further delay between the precharge of each bit line. The memory circuit is configured to precharge both bit lines of a memory cell at the same time when an operation associated with that cell is designated.
    Type: Application
    Filed: March 23, 2023
    Publication date: July 13, 2023
    Inventors: Sanjeev Kumar Jain, Ruchin Jain, Arun Achyuthan, Atul Katoch
  • Patent number: 11682434
    Abstract: Systems and methods are provided for controlling power down of an integrated dual rail memory circuit. The power down system is configured to power down the power rail for input and logic components (VDD) while maintaining power to the power rail for the memory cells (VDDM). The power down system includes two voltage rails, a clock generator, and a power detector for detecting the power on VDD. The power detector generates an isolated power signal when voltage on VDD is below a voltage threshold. The isolated power signal is configured to disable the clock generator and thus reduce dynamic power as the read/write cycle is not triggered during power down.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: June 20, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Sanjeev Kumar Jain
  • Publication number: 20230178122
    Abstract: Disclosed herein are related to reducing power consumption of a memory device when transitioning from a sleep state to an operational state. In one aspect, the memory device includes a memory cell to store data. In one aspect, the memory device includes an output driver configured to: generate an output signal indicating the stored data, in response to a sleep tracking signal indicating that the memory cell is in the operational state, and generate the output signal having a predetermined voltage irrespective of the stored data, in response to the sleep tracking signal indicating that the memory cell is in the sleep state. In one aspect, the sleep tracking signal is delayed from a sleep control signal causing the memory cell to operate in the sleep state or the operational state.
    Type: Application
    Filed: April 6, 2022
    Publication date: June 8, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sanjeev Kumar Jain, Atul Katoch
  • Patent number: 11670365
    Abstract: Circuits and methods are described herein for controlling a bit line precharge circuit. For example, a control circuit includes a first latch circuit and a second latch circuit. The first latch circuit is configured to receive a first light sleep signal. The first latch circuit generates a second light sleep signal according to a clock signal. The second latch circuit is configured to receive the second light sleep signal. The second latch circuit generates a third light sleep signal according to a sense amplifier enable signal. The second latch circuit provides the third light sleep signal to a bit line reading switch, so the bit line reading switch is cutoff after a sense amplifier is enabled.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: June 6, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Sanjeev Kumar Jain
  • Publication number: 20230170010
    Abstract: A memory circuit includes a global control circuit, a first local control circuit, and a first set of word line post-decoder circuits coupled to a first set of memory cells that is configured to store a first set of data. The global control circuit is configured to generate a first and second set of global pre-decoder signals, and a first set of local address signals. The first local control circuit includes a first set of repeater circuits and a first clock pre-decoder circuit. The first set of repeater circuits is configured to generate a first and second set of local pre-decoder signals in response to the corresponding first and second set of global pre-decoder signals. The first clock pre-decoder circuit is configured to generate a first and second set of clock signals in response to the first set of local address signals and the first clock signal.
    Type: Application
    Filed: May 17, 2022
    Publication date: June 1, 2023
    Inventors: Sanjeev Kumar JAIN, Ishan KHERA, Atul KATOCH