Patents by Inventor Ahsanur Rahman

Ahsanur Rahman 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: 20240136003
    Abstract: A storage device charges bitlines in preparation for a program pulse. To charge the bitlines, the storage device connects the bitlines to an external regulator instead of an internal regulator to prepare them for the program pulse. The system can charge all bitlines to the external regulator high voltage reference before changing to the internal regulator for bitline stabilization before the program pulse.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 25, 2024
    Inventors: Tarek Ahmed AMEEN BESHARI, Shantanu R. RAJWADE, Ahsanur RAHMAN, Sagar UPADHYAY, Pratyush CHANDRAPATI
  • Publication number: 20230082368
    Abstract: Systems, apparatuses, and methods may provide for technology that groups a plurality of wordline drivers together and supports these grouped wordline drivers via a shared multiplexer, a shared level shifter, and/or one or more shared multi-well level shifters. In one example, such technology includes a shared multiplexer and a first and second grouped global wordline driver coupled to the shared multiplexer. The shared multiplexer is to access data state information from a plurality of memory cells. The first grouped global wordline driver is to output a first plurality of wordlines associated with a first plane. The second grouped global wordline driver is to output a second plurality of wordlines associated with a second plane, where the second plane is different than the first plane.
    Type: Application
    Filed: September 15, 2021
    Publication date: March 16, 2023
    Applicant: Intel Corporation
    Inventors: Chang Wan Ha, Binh Ngo, Ahsanur Rahman, Radhika Chinnammagari, Sagar Upadhyay
  • Publication number: 20220415380
    Abstract: Systems, apparatuses and methods may provide for technology that sends a first command to a NAND die, sends first address information to the NAND die, and sends a second command to the NAND die, wherein the first command and the second command define a first command sequence and wherein the first address information signal a beginning of a first asynchronous read request from a first plurality of planes. In one example, the technology also sends a second command sequence and second address information to the NAND die wherein the second command sequence signals an end of the first asynchronous read request.
    Type: Application
    Filed: June 24, 2021
    Publication date: December 29, 2022
    Inventors: Naveen Prabhu Vittal Prabhu, Aliasgar S. Madraswala, Bharat Pathak, Binh Ngo, Netra Mahuli, Ahsanur Rahman
  • Publication number: 20220399057
    Abstract: An embodiment of a memory device may include a full block memory array of a lower tile of 3D NAND string memory cells, a full block memory array of an upper tile of 3D NAND string memory cells, a first portion of a string driver circuit coupled to the full block memory array of the lower tile, a second portion of the string driver circuit coupled to the full block memory array of the upper tile, a first split block memory array of the lower tile coupled to the first portion of the string driver circuit, and a second split block memory array of the upper tile coupled to the second portion of the string driver circuit. Other embodiments are disclosed and claimed.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 15, 2022
    Applicant: Intel Corporation
    Inventors: Chang Wan Ha, Deepak Thimmegowda, Hoon Koh, Richard M. Gularte, Liu Liu, David Meyaard, Ahsanur Rahman
  • 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: 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: 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
  • Publication number: 20070002613
    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: June 30, 2005
    Publication date: January 4, 2007
    Applicant: INTEL CORPORATION
    Inventors: Ahsanur Rahman, Rezaul Haque, Kerry Tedrow