Patents by Inventor Atul Katoch

Atul Katoch 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: 12651629
    Abstract: A memory circuit includes first and second word line drivers coupled to a control circuit configured to output clock pulse signals, first and second I/O circuits coupled to the control circuit and configured to output first through fourth pulse signals responsive to the clock pulse signals, first through forth memory arrays coupled to the first and second word line drivers and first and second I/O circuits, a first booster circuit coupled to the first I/O circuit and first and second memory arrays and configured to couple first and second memory array word lines to a power supply node responsive to the respective first and second pulse signals, and a second booster circuit coupled to the second I/O circuit and third and fourth memory arrays and configured to couple third and fourth memory array word lines to the power supply node responsive to the respective third and fourth pulse signals.
    Type: Grant
    Filed: July 30, 2024
    Date of Patent: June 9, 2026
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Atul Katoch
  • Publication number: 20260148765
    Abstract: A memory circuit may comprise at least one of: a first memory bank, a first local input/output (I/O) circuit, a second memory bank, a second local I/O circuit, a global I/O circuit, a first local latch circuit, and a second local latch circuit. The first memory bank may include a first memory array. The second memory bank may include a second memory array. The first local latch circuit can be configured to be activated to latch data bit when read from the first memory array. The second local latch circuit can be configured to be activated to latch data bit when read from the second memory array. The first local latch circuit and the second local latch circuit can be configured to be alternately activated.
    Type: Application
    Filed: November 26, 2024
    Publication date: May 28, 2026
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Abhishek Pathak, Atul Katoch
  • Publication number: 20260105955
    Abstract: A memory device includes a memory bank with a memory cell connected to a local bit line and a word line. A first local data latch is connected to the local bit line and has an enable terminal configured to receive a first local clock signal. A word line latch is configured to latch a word line select signal, and has an enable terminal configured to receive a second local clock signal. A first global data latch is connected to the first local data latch by a global bit line, and the first global data latch has an enable terminal configured to receive a global clock signal. A global address latch is connected to the word line latch and has an enable terminal configured to receive the global clock signal. A bank select latch is configured to latch a bank select signal, and has an enable terminal configured to receive the second local clock signal.
    Type: Application
    Filed: December 12, 2025
    Publication date: April 16, 2026
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Atul Katoch, Sahil Preet Singh
  • Publication number: 20260052698
    Abstract: A memory device includes a substrate. A transistor is over a front side of the substrate. A front side interconnect structure is over the front side of the substrate and electrically connected with the transistor. A storage element is at a position below the transistor and electrically connected with the transistor, wherein the storage element comprises a first electrode, a second electrode, and a data storage layer between the first electrode and the second electrode.
    Type: Application
    Filed: August 15, 2024
    Publication date: February 19, 2026
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Atul KATOCH, Cormac Michael O’CONNELL
  • Publication number: 20260011353
    Abstract: A sensing circuit and a control method of the sensing circuit are provided. The sensing circuit includes a data line, a complementary data line, a read bit line, a complementary read bit line, a read pass gate circuit and logic circuit. The logic circuit enables the read pass gate circuit when a voltage level on the read bit line and a voltage level on the complementary read bit line are pre-charged to a first voltage level, and disable the read pass gate circuit when one of the voltage level on the read bit line and the voltage level on the complementary read bit line is pull to a second voltage level different from the first voltage level. The read pass gate circuit is enabled to connect the data line to the read bit line and connect the complementary data line to the complementary read bit line.
    Type: Application
    Filed: July 5, 2024
    Publication date: January 8, 2026
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Atul Katoch, Sergiy Romanovskyy
  • Patent number: 12512150
    Abstract: A memory device includes a memory bank with a memory cell connected to a local bit line and a word line. A first local data latch is connected to the local bit line and has an enable terminal configured to receive a first local clock signal. A word line latch is configured to latch a word line select signal, and has an enable terminal configured to receive a second local clock signal. A first global data latch is connected to the first local data latch by a global bit line, and the first global data latch has an enable terminal configured to receive a global clock signal. A global address latch is connected to the word line latch and has an enable terminal configured to receive the global clock signal. A bank select latch is configured to latch a bank select signal, and has an enable terminal configured to receive the second local clock signal.
    Type: Grant
    Filed: November 21, 2023
    Date of Patent: December 30, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Atul Katoch, Sahil Preet Singh
  • Publication number: 20250364024
    Abstract: A memory device includes a plurality of memory cells arranged in an array, a first clock generator connected to the plurality of memory cells and configured to generate a local clock signal to be provided to the plurality of memory cells, a second clock generator connected to an input/output interface connected to the plurality of memory cells, the second clock generator configured to generate a global clock signal to be provided to the input/output interface, and one or more logic gates connected to at least one of the first clock generator or the second clock generator, wherein the one or more logic gates allow the local clock signal and the global clock signal to be output independently.
    Type: Application
    Filed: August 1, 2025
    Publication date: November 27, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jaspal Singh Shah, Atul Katoch
  • Publication number: 20250356889
    Abstract: Systems and methods are provided for a memory device including a first memory array, a local input/output (LIO) circuit, and a global input/output (GIO) circuit. The first memory array includes a memory cell and a local bit line. The LIO circuit is configured to receive a local bit line signal on the local bit line and to generate a global bit line signal on a global bit line based on the local bit line signal. The GIO circuit is coupled to the LIO circuit and is configured to receive the global bit line signal. The GIO circuit comprises a latch circuit including a global bit line signal latch that is configured to latch the global bit line signal, and a booster circuit that is configured to drive the global bit line signal in the GIO circuit based on a previous global bit line signal.
    Type: Application
    Filed: July 28, 2025
    Publication date: November 20, 2025
    Inventors: Ishan Khera, Atul Katoch
  • Publication number: 20250349345
    Abstract: A memory circuit includes a first local control circuit and a first set of word line post-decoder circuits. 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 set of local pre-decoder signals in response to the first set of global pre-decoder signals, and a second set of local pre-decoder signals in response to the 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 a first set of local address signals. The first set of word line post-decoder circuits is configured to generate a first set of word line signals in response to the first set of clock signals, and the first and second set of local pre-decoder signals.
    Type: Application
    Filed: July 24, 2025
    Publication date: November 13, 2025
    Inventors: Sanjeev Kumar JAIN, Ishan KHERA, Atul KATOCH
  • Publication number: 20250348394
    Abstract: An exemplary testing environment can operate in a testing mode of operation to test whether a memory device or other electronic devices communicatively coupled to the memory device operate as expected or unexpectedly as a result of one or more manufacturing faults. The testing mode of operation includes a shift mode of operation, a capture mode of operation, and/or a scan mode of operation. In the shift mode of operation and the scan mode of operation, the exemplary testing environment delivers a serial input sequence of data to the memory device. In the capture mode of operation, the exemplary testing environment delivers a parallel input sequence of data to the memory device.
    Type: Application
    Filed: July 22, 2025
    Publication date: November 13, 2025
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ming-Hung CHANG, Atul KATOCH, Chia-En HUANG, Ching-Wei WU, Donald G. MIKAN, Hao-I YANG, Kao-Cheng LIN, Ming-Chien TSAI, Saman M.I. ADHAM, Tsung-Yung CHANG, Uppu Sharath CHANDRA
  • Publication number: 20250349333
    Abstract: A memory device includes a plurality of memory cells arranged in an array, a first clock generator connected to the plurality of memory cells and configured to generate a local clock signal to be provided to the plurality of memory cells, a second clock generator connected to an input/output interface connected to the plurality of memory cells, the second clock generator configured to generate a global clock signal to be provided to the input/output interface, and one or more logic gates connected to at least one of the first clock generator or the second clock generator, wherein the one or more logic gates allow the local clock signal and the global clock signal to be output independently.
    Type: Application
    Filed: May 9, 2024
    Publication date: November 13, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jaspal Singh Shah, Atul Katoch
  • Patent number: 12456511
    Abstract: A memory circuit includes a global control circuit, a first local control circuit and a first set of word line post-decoder circuits. 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 set of local pre-decoder signals in response to the first set of global pre-decoder signals, and a second set of local pre-decoder signals in response to the 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. The first set of word line post-decoder circuits is configured to generate a first set of word line signals.
    Type: Grant
    Filed: March 11, 2024
    Date of Patent: October 28, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Sanjeev Kumar Jain, Ishan Khera, Atul Katoch
  • Publication number: 20250321611
    Abstract: Circuits and methods are provided for a clock generation circuit that includes a first transistor, wherein a gate of the first transistor is connected to a clock signal, a second transistor, connected in parallel to the first transistor, and a driving circuit, coupled to the second transistor, and comprising an input and an output, wherein the input of the driving circuit is connected to the clock signal, the output of the driving circuit is connected to a gate of the second transistor, and the driving circuit is configured to reduce a slew of the clock signal.
    Type: Application
    Filed: June 26, 2025
    Publication date: October 16, 2025
    Inventors: Jaspal Singh Shah, Atul Katoch
  • Patent number: 12436858
    Abstract: An exemplary testing environment can operate in a testing mode of operation to test whether a memory device or other electronic devices communicatively coupled to the memory device operate as expected or unexpectedly as a result of one or more manufacturing faults. The testing mode of operation includes a shift mode of operation, a capture mode of operation, and/or a scan mode of operation. In the shift mode of operation and the scan mode of operation, the exemplary testing environment delivers a serial input sequence of data to the memory device. In the capture mode of operation, the exemplary testing environment delivers a parallel input sequence of data to the memory device.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: October 7, 2025
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ming-Hung Chang, Atul Katoch, Chia-En Huang, Ching-Wei Wu, Donald G. Mikan, Jr., Hao-I Yang, Kao-Cheng Lin, Ming-Chien Tsai, Saman M. I. Adham, Tsung-Yung Chang, Uppu Sharath Chandra
  • Publication number: 20250292814
    Abstract: Memory clock drivers, memories, and methods of operating memory clock drivers are provided. A memory device contains two memory clock drivers disposed opposite each other across an array of rows of memory cells. The memory clock drivers contain decoders, which decode an address corresponding to one or more rows of memory cells. The decoders are configured to decode the address to provide a plurality of word line signals to the corresponding rows of memory cells. The memory device also includes a row select circuit, which receives a row select address and activates a corresponding row of memory cells. The memory device includes control circuitry to control the arrays of memory cells at a local and a global level, as well as I/O modules to send signals to different parts of the memory device and integrate the memory device into external devices.
    Type: Application
    Filed: May 30, 2025
    Publication date: September 18, 2025
    Inventor: Atul Katoch
  • Publication number: 20250285662
    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: May 27, 2025
    Publication date: September 11, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sanjeev Kumar Jain, Atul Katoch
  • Patent number: 12400690
    Abstract: Systems and methods are provided for a memory device including a first memory array, a local input/output (LIO) circuit, and a global input/output (GIO) circuit. The first memory array includes a memory cell and a local bit line. The LIO circuit is configured to receive a local bit line signal on the local bit line and to generate a global bit line signal on a global bit line based on the local bit line signal. The GIO circuit is coupled to the LIO circuit and is configured to receive the global bit line signal. The GIO circuit comprises a latch circuit including a global bit line signal latch that is configured to latch the global bit line signal, and a booster circuit that is configured to drive the global bit line signal in the GIO circuit based on a previous global bit line signal.
    Type: Grant
    Filed: July 13, 2023
    Date of Patent: August 26, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ishan Khera, Atul Katoch
  • Publication number: 20250259661
    Abstract: The present disclosure provides a memory device, which includes a memory array, a read-clock generation circuit, and a local input/output circuit. The read-clock generation circuit receives a sense amplifier enable signal, a first sense amplifier pre-charge signal, and a latched write enable signal to generate a first read enable signal. The local input/output circuit includes multiple pairs of column-address pass gates, and a pair of read pass gates. The plurality of pairs of column-address pass gates are configured to receive data from a bit-line pair of the memory cells in a row selected by an address signal. The pair of read pass gates connects a read bit-line pair to the bit-line pair in response to the first read enable signal being in a low-logic state. The first read enable signal is de-asserted after the read bit-line pair connected to the pair of read pass gates are pre-charged.
    Type: Application
    Filed: April 30, 2025
    Publication date: August 14, 2025
    Inventors: SANJEEV KUMAR JAIN, ATUL KATOCH
  • Publication number: 20250259667
    Abstract: Systems, methods, and devices are described herein for a word line interlock circuit. A device includes a first logic gate, an interlock circuit, and a delay circuit. The first logic gate is configured to receive a reset signal. The interlock circuit is coupled to an output of the first logic gate and is configured to generate a first signal and selectively operate the first logic gate. The delay circuit is coupled to an output of the interlock circuit and is configured to receive the first signal from the interlock circuit and delay the first signal to generate a clock pulse width signal that is fed back to the interlock circuit. In response to the reset signal changing logic states, the selective operation of the first logic gate prevents changing edges of the reset signal from being transmitted to the delay circuit.
    Type: Application
    Filed: May 1, 2025
    Publication date: August 14, 2025
    Inventors: Atul Katoch, Sergiy Romamovskyy
  • Publication number: 20250259675
    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: May 1, 2025
    Publication date: August 14, 2025
    Inventors: Sanjeev Kumar Jain, Ruchin Jain, Arun Achyuthan, Atul Katoch