Patents by Inventor Rezaul Haque

Rezaul Haque 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: 12394492
    Abstract: A sense circuit performs a multistage boost, including a boost during precharge operation and a boost during the standard boost operation. The sense circuit includes an output transistor to drive a sense output based on current through a sense node which drives a gate of the output transistor. The sense circuit includes a precharge circuit to precharge the sense node and the gate of the output transistor and a boost circuit to boost the sense node. The boost circuit can be boosted during precharge by a first boost voltage, resulting in a lower boost applied to the sense node after precharge. The boost circuit boosts up the sense node by a second boost voltage lower than the first boost voltage. The boost circuit boosts the sense node down by the full boost voltage of the first boost voltage plus the second boost voltage after sensing.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: August 19, 2025
    Assignee: Intel NDTM US LLC
    Inventors: Shantanu R. Rajwade, Bayan Nasri, Tzu-Ning Fang, Rezaul Haque, Dhanashree R. Kulkarni, Narayanan Ramanan, Matin Amani, Ahsanur Rahman, Seong Je Park, Netra Mahuli
  • Patent number: 12224015
    Abstract: Systems, apparatuses and methods may provide for technology that applies a first set of control signals to even bitlines in NAND memory and senses voltage levels of the even bitlines during an even sensing time period. The technology may also apply a second set of control signals to odd bitlines in the NAND memory, and sense voltage levels of the odd bitlines during an odd sensing time period, wherein the second set of control signals are applied after expiration of a stagger time period between the even sensing time period and the odd sensing time period.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: February 11, 2025
    Assignee: Intel Corporation
    Inventors: Ali Khakifirooz, Rezaul Haque, Dhanashree Kulkarni, Bayan Nasri
  • Publication number: 20220343982
    Abstract: Systems, apparatuses and methods may provide for technology that applies a first set of control signals to even bitlines in NAND memory and senses voltage levels of the even bitlines during an even sensing time period. The technology may also apply a second set of control signals to odd bitlines in the NAND memory, and sense voltage levels of the odd bitlines during an odd sensing time period, wherein the second set of control signals are applied after expiration of a stagger time period between the even sensing time period and the odd sensing time period.
    Type: Application
    Filed: April 21, 2021
    Publication date: October 27, 2022
    Inventors: Ali Khakifirooz, Rezaul Haque, Dhanashree Kulkarni, Bayan Nasri
  • Publication number: 20220172784
    Abstract: A sense circuit performs a multistage boost, including a boost during precharge operation and a boost during the standard boost operation. The sense circuit includes an output transistor to drive a sense output based on current through a sense node which drives a gate of the output transistor. The sense circuit includes a precharge circuit to precharge the sense node and the gate of the output transistor and a boost circuit to boost the sense node. The boost circuit can be boosted during precharge by a first boost voltage, resulting in a lower boost applied to the sense node after precharge. The boost circuit boosts up the sense node by a second boost voltage lower than the first boost voltage. The boost circuit boosts the sense node down by the full boost voltage of the first boost voltage plus the second boost voltage after sensing.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 2, 2022
    Inventors: Shantanu R. RAJWADE, Bayan NASRI, Tzu-Ning FANG, Rezaul HAQUE, Dhanashree R. KULKARNI, Narayanan RAMANAN, Matin AMANI, Ahsanur RAHMAN, Seong Je PARK, Netra MAHULI
  • Patent number: 10802742
    Abstract: The present disclosure relates to memory array access control. An apparatus includes partition control circuitry to control at least one partition of a memory array, the at least one partition control circuitry also to receive a controlled clock signal to enable execution of a legitimate memory access command and to generate an active/idle signal having an active state when executing the legitimate memory access command and an idle state when executing the legitimate memory access command is complete; wherein the clock signal is disabled when the active/idle signal is in an idle state.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 13, 2020
    Assignee: Intel Corporation
    Inventors: Rezaul Haque, Lady Nataly Pinilla Pico
  • Publication number: 20190129642
    Abstract: The present disclosure relates to memory array access control. An apparatus includes partition control circuitry to control at least one partition of a memory array, the at least one partition control circuitry also to receive a controlled clock signal to enable execution of a legitimate memory access command and to generate an active/idle signal having an active state when executing the legitimate memory access command and an idle state when executing the legitimate memory access command is complete; wherein the clock signal is disabled when the active/idle signal is in an idle state.
    Type: Application
    Filed: October 5, 2018
    Publication date: May 2, 2019
    Applicant: Intel Corporation
    Inventors: REZAUL HAQUE, LADY NATALY PINILLA PICO
  • Patent number: 10095437
    Abstract: The present disclosure relates to memory array access control. An apparatus includes partition control circuitry to control at least one partition of a memory array, the at least one partition control circuitry also to receive a controlled clock signal to enable execution of a legitimate memory access command and to generate an active/idle signal having an active state when executing the legitimate memory access command and an idle state when executing the legitimate memory access command is complete; wherein the clock signal is disabled when the active/idle signal is in an idle state.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: October 9, 2018
    Assignee: Intel Corporation
    Inventors: Rezaul Haque, Lady Nataly Pinilla Pico
  • Publication number: 20170038997
    Abstract: The present disclosure relates to memory array access control. An apparatus includes partition control circuitry to control at least one partition of a memory array, the at least one partition control circuitry also to receive a controlled clock signal to enable execution of a legitimate memory access command and to generate an active/idle signal having an active state when executing the legitimate memory access command and an idle state when executing the legitimate memory access command is complete; wherein the clock signal is disabled when the active/idle signal is in an idle state.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 9, 2017
    Applicant: INTEL CORPORATION
    Inventors: REZAUL HAQUE, LADY NATALY PINILLA PICO
  • Patent number: 7710781
    Abstract: A wireless device that includes a memory device having an engine to execute a voting algorithm to average a memory cell data sensing result over time to provide a charge placement in the memory cell.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: May 4, 2010
    Assignee: Intel Corporation
    Inventors: Rezaul Haque, Darshak A. Udeshi, Karthi Ramamurthi, Nathan C. Chrisman, Aliasgar S. Madraswala, Kevin P. Flanagan
  • Patent number: 7551489
    Abstract: A multi-level cell memory device performs a read by providing a stepped voltage waveform on a wordline, and comparing cell currents to a substantially constant reference current. Prior to the application of the stepped voltage waveform, the wordline may share charge with another circuit node.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: June 23, 2009
    Assignee: Intel Corporation
    Inventors: Kerry D. Tedrow, Dung Nguyen, Bo Li, Rezaul Haque, Ahsanur Rahman, Saad P. Monasa, Matthew Goldman
  • Patent number: 7525840
    Abstract: In the multi level/bit per cell memory array, a flag cell indicates pseudo single bit per cell configuration for one or more cells of the memory array. The output of the cell or cells associated with the flag cell is a single bit when the flag cell is set. The cell or cells associated with the flag cell operate as multi level/bit per cell cells when the flag cell is not set. The flag cell of the memory array may also be a multi level/bit per cell cell that is read to provide a single bit output. Multiple flag cells may be provided and associated with various cells or groups of cells so that these cells or groups of cells may be operated in a user selectable pseudo single bit configuration.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: April 28, 2009
    Assignee: Intel Corporation
    Inventors: Ahsanur Rahman, Rezaul Haque, Kerry D. Tedrow
  • Publication number: 20090080248
    Abstract: A wireless device that includes a memory device having an engine to execute a voting algorithm to average a memory cell data sensing result over time to provide a charge placement in the memory cell.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 26, 2009
    Inventors: Rezaul Haque, Darshak A. Udeshi, Karthi Ramamurthi, Nathan C. Chrisman, Aliasgar S. Madraswala, Kevin P. Flanagan
  • Patent number: 7489555
    Abstract: During a program verify sensing operation, a tracking signal may be generated to match a sense amplifier signal. A data stream from a sequence generator may be held at a pass/hold logic until the tracking signal reaches a trip point. The data stream may be subsequently latched at a main latch with the sense amplifier signal.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: February 10, 2009
    Assignee: Intel Corporation
    Inventors: Rezaul Haque, Darshak Udeshi
  • Publication number: 20080316813
    Abstract: A method of sensing data in a multi-level cell memory using two or less sense operations and adjusting column load is provided. A sensing circuit implementing a serial-parallel sense scheme is also provided. The column loads are re-configurable based on the sensing circuit and the serial-parallel sense scheme.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 25, 2008
    Inventor: Rezaul Haque
  • Publication number: 20080316814
    Abstract: According to some embodiments, a method and apparatus for program verify sensing disclosed. During a program verify sensing operation, a tracking signal may be generated to match a sense amplifier signal. A data stream from a sequence generator may be held at a pass/hold logic until the tracking signal reaches a trip point. The data stream may be subsequently latched at a main latch with the sense amplifier signal.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 25, 2008
    Inventors: Rezaul Haque, Darshak Udeshi
  • Patent number: 7463514
    Abstract: A method of sensing data in a multi-level cell memory using two or less sense operations and adjusting column load is provided. A sensing circuit implementing a serial-parallel sense scheme is also provided. The column loads are re-configurable based on the sensing circuit and the serial-parallel sense scheme.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: December 9, 2008
    Assignee: Intel Corporation
    Inventor: Rezaul Haque
  • Publication number: 20080117675
    Abstract: The supply voltage to a selected cell may be turned off after sensing. In one embodiment, this may be done by providing the output of the sense amplifier through a control circuit to simply turn off the voltage to the selected column or bitline. This may reduce the drain disturb by reducing the amount of voltage applied over time to a multi-level cell.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 22, 2008
    Inventors: Rezaul Haque, Kerry D. Tedrow
  • Publication number: 20070268758
    Abstract: In the multi level/bit per cell memory array, a flag cell indicates pseudo single bit per cell configuration for one or more cells of the memory array. The output of the cell or cells associated with the flag cell is a single bit when the flag cell is set. The cell or cells associated with the flag cell operate as multi level/bit per cell cells when the flag cell is not set. The flag cell of the memory array may also be a multi level/bit per cell cell that is read to provide a single bit output. Multiple flag cells may be provided and associated with various cells or groups of cells so that these cells or groups of cells may be operated in a user selectable pseudo single bit configuration.
    Type: Application
    Filed: August 7, 2007
    Publication date: November 22, 2007
    Applicant: INTEL CORPORATION
    Inventors: Ahsanur Rahman, Rezaul Haque, Kerry Tedrow
  • Patent number: 7272041
    Abstract: In the multi level/bit per cell memory array, a flag cell indicates pseudo single bit per cell configuration for one or more cells of the memory array. The output of the cell or cells associated with the flag cell is a single bit when the flag cell is set. The cell or cells associated with the flag cell operate as multi level/bit per cell cells when the flag cell is not set. The flag cell of the memory array may also be a multi level/bit per cell cell that is read to provide a single bit output. Multiple flag cells may be provided and associated with various cells or groups of cells so that these cells or groups of cells may be operated in a user selectable pseudo single bit configuration.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: September 18, 2007
    Assignee: Intel Corporation
    Inventors: Ahsanur Rahman, Rezaul Haque, Kerry D. Tedrow
  • Publication number: 20070171708
    Abstract: A multi-level cell memory device performs a read by providing a stepped voltage waveform on a wordline, and comparing cell currents to a substantially constant reference current. Prior to the application of the stepped voltage waveform, the wordline may share charge with another circuit node.
    Type: Application
    Filed: December 28, 2005
    Publication date: July 26, 2007
    Inventors: Kerry Tedrow, Dung Nguyen, Bo Li, Rezaul Haque, Ahsanur Rahman, Saad Monasa, Matthew Goldman