Patents by Inventor Raymond W. Zeng

Raymond W. Zeng 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: 11768603
    Abstract: Apparatuses and methods for performing multithread, concurrent access of different partition of a memory are disclosed herein. An example apparatus may include a non-volatile memory array comprising a plurality of partitions. Each of the plurality of partitions may include a respective plurality of memory cells. The apparatus may include a plurality of local controllers that each independently and concurrently access a respective one of the plurality of partitions to execute a respective memory access command of a plurality of memory access commands. The apparatus may include a controller to receive the plurality of memory access commands and to determine a respective target partition of the plurality of partitions for each of the plurality of memory access commands. The controller may be provide each of the plurality of memory access commands to a local controller of the plurality of local controllers associated with the respective target partition.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: September 26, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Rajesh Sundaram, Derchang Kau, Owen W. Jungroth, Daniel Chu, Raymond W. Zeng, Shekoufeh Qawami
  • Publication number: 20220415425
    Abstract: A read technique for both SLC (single level cell) and MLC (multi-level cell) cross-point memory can mitigate drift-related errors with minimal or no drift tracking. In one example, a read at a higher magnitude voltage is applied first, which causes the drift for cells in a lower threshold voltage state to be reset. In one example, the read at the first voltage can be a full float read to minimize disturb. A second read can then be performed at a lower voltage without the need to adjust the read voltage due to drift.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 29, 2022
    Inventors: Hemant P. RAO, Raymond W. ZENG, Prashant S. DAMLE, Zion S. KWOK, Kiran PANGAL, Mase J. TAUB
  • Publication number: 20220261151
    Abstract: Apparatuses and methods for performing multithread, concurrent access of different partition of a memory are disclosed herein. An example apparatus may include a non-volatile memory array comprising a plurality of partitions. Each of the plurality of partitions may include a respective plurality of memory cells. The apparatus may further include a plurality of local controllers that are each configured to independently and concurrently access a respective one of the plurality of partitions to execute a respective memory access command of a plurality of memory access commands responsive to receiving the respective memory access command. The example apparatus may further include a controller configured to receive the plurality of memory access commands and to determine a respective target partition of the plurality of partitions for each of the plurality of memory access commands.
    Type: Application
    Filed: May 5, 2022
    Publication date: August 18, 2022
    Applicant: Micron Technology, Inc.
    Inventors: RAJESH SUNDARAM, DERCHANG KAU, OWEN W. JUNGROTH, DANIEL CHU, RAYMOND W. ZENG, SHEKOUFEH QAWAMI
  • Patent number: 11354040
    Abstract: Apparatuses and methods for performing multithread, concurrent access of different partition of a memory are disclosed herein. An example apparatus may include a non-volatile memory array comprising a plurality of partitions. Each of the plurality of partitions may include a respective plurality of memory cells. The apparatus may further include a plurality of local controllers that are each configured to independently and concurrently access a respective one of the plurality of partitions to execute a respective memory access command of a plurality of memory access commands responsive to receiving the respective memory access command. The example apparatus may further include a controller configured to receive the plurality of memory access commands and to determine a respective target partition of the plurality of partitions for each of the plurality of memory access commands.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: June 7, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Rajesh Sundaram, Derchang Kau, Owen W. Jungroth, Daniel Chu, Raymond W. Zeng, Shekoufeh Qawami
  • Publication number: 20200341635
    Abstract: Apparatuses and methods for performing multithread, concurrent access of different partition of a memory are disclosed herein. An example apparatus may include a non-volatile memory array comprising a plurality of partitions. Each of the plurality of partitions may include a respective plurality of memory cells. The apparatus may further include a plurality of local controllers that are each configured to independently and concurrently access a respective one of the plurality of partitions to execute a respective memory access command of a plurality of memory access commands responsive to receiving the respective memory access command. The example apparatus may further include a controller configured to receive the plurality of memory access commands and to determine a respective target partition of the plurality of partitions for each of the plurality of memory access commands.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Applicant: Micron Technology, Inc.
    Inventors: RAJESH SUNDARAM, DERCHANG KAU, OWEN W. JUNGROTH, DANIEL CHU, RAYMOND W. ZENG, SHEKOUFEH QAWAMI
  • Patent number: 10719237
    Abstract: Apparatuses and methods for performing multithread, concurrent access of different partition of a memory are disclosed herein. An example apparatus may include a non-volatile memory array comprising a plurality of partitions. Each of the plurality of partitions may include a respective plurality of memory cells. The apparatus may further include a plurality of local controllers that are each configured to independently and concurrently access a respective one of the plurality of partitions to execute a respective memory access command of a plurality of memory access commands responsive to receiving the respective memory access command. The example apparatus may further include a controller configured to receive the plurality of memory access commands and to determine a respective target partition of the plurality of partitions for each of the plurality of memory access commands.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: July 21, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Rajesh Sundaram, Derchang Kau, Owen W. Jungroth, Daniel Chu, Raymond W. Zeng, Shekoufeh Qawami
  • Patent number: 10546634
    Abstract: The present disclosure relates to phase change memory control. An apparatus includes a memory controller. The memory controller includes a word line (WL) control module and a bit line (BL) control module. The memory controller is to determine a WL address based, at least in part, on a received memory address. The memory controller is further to determine a BL address. The apparatus further includes a parameter selection module to select a value of a control parameter based, at least in part, on at least one of the WL address and/or the BL address.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: January 28, 2020
    Assignee: Intel Corporation
    Inventors: Raymond W. Zeng, Mase J. Taub, Kiran Pangal, Sandeep K. Guliani
  • Patent number: 10325652
    Abstract: Technology for verifying cell programming for a phase change memory array is disclosed. In an example, a method may include sending a reset pulse to a phase change memory cell. The method may further include sensing a threshold voltage of the phase change memory cell in response to applying first and second verify voltages across the phase change memory cell, where the second verify voltage is lower than the first verify voltage. The method may also include determining whether the threshold voltage of the phase change memory cell was below the first or second verify voltages.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: June 18, 2019
    Assignee: Intel Corporation
    Inventors: Daniel J. Chu, Raymond W. Zeng, Doyle Rivers
  • Publication number: 20190096482
    Abstract: The present disclosure relates to phase change memory control. An apparatus includes a memory controller. The memory controller includes a word line (WL) control module and a bit line (BL) control module. The memory controller is to determine a WL address based, at least in part, on a received memory address. The memory controller is further to determine a BL address. The apparatus further includes a parameter selection module to select a value of a control parameter based, at least in part, on at least one of the WL address and/or the BL address.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 28, 2019
    Inventors: Raymond W. ZENG, Mase J. TAUB, Kiran PANGAL, Sandeep K. GULIANI
  • Patent number: 10134468
    Abstract: The present disclosure relates to phase change memory control. An apparatus includes a memory controller. The memory controller includes a word line (WL) control module and a bit line (BL) control module. The memory controller is to determine a WL address based, at least in part, on a received memory address. The memory controller is further to determine a BL address. The apparatus further includes a parameter selection module to select a value of a control parameter based, at least in part, on at least one of the WL address and/or the BL address.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: November 20, 2018
    Assignee: Intel Corporation
    Inventors: Raymond W. Zeng, Mase J. Taub, Kiran Pangal, Sandeep K. Guliani
  • Publication number: 20180068720
    Abstract: Technology for verifying cell programming for a phase change memory array is disclosed. In an example, a method may include sending a reset pulse to a phase change memory cell. The method may further include sensing a threshold voltage of the phase change memory cell in response to applying first and second verify voltages across the phase change memory cell, where the second verify voltage is lower than the first verify voltage. The method may also include determining whether the threshold voltage of the phase change memory cell was below the first or second verify voltages.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 8, 2018
    Applicant: Intel Corporation
    Inventors: Daniel J. Chu, Raymond W. Zeng, Doyle Rivers
  • Patent number: 9792986
    Abstract: The present disclosure relates to phase change memory current. An apparatus includes a memory controller including a word line (WL) control module and a bit line (BL) control module, the memory controller is to initiate selection of a memory cell. The apparatus further includes a mitigation module to configure a first line selection logic to reduce a transient energy dissipation of the memory cell, the transient energy related to selecting the memory cell.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: October 17, 2017
    Assignee: INTEL CORPORATION
    Inventors: Mase J. Taub, Sandeep K. Guliani, Kiran Pangal, Raymond W. Zeng
  • Patent number: 9747977
    Abstract: Technology for verifying cell programming for a phase change memory array is disclosed. In an example, a method may include sending a reset pulse to a phase change memory cell. The method may further include sensing a threshold voltage of the phase change memory cell in response to applying first and second verify voltages across the phase change memory cell, where the second verify voltage is lower than the first verify voltage. The method may also include determining whether the threshold voltage of the phase change memory cell was below the first or second verify voltages.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 29, 2017
    Assignee: INTEL CORPORATION
    Inventors: Daniel J. Chu, Raymond W. Zeng, Doyle Rivers
  • Publication number: 20170229172
    Abstract: The present disclosure relates to phase change memory control. An apparatus includes a memory controller. The memory controller includes a word line (WL) control module and a bit line (BL) control module. The memory controller is to determine a WL address based, at least in part, on a received memory address. The memory controller is further to determine a BL address. The apparatus further includes a parameter selection module to select a value of a control parameter based, at least in part, on at least one of the WL address and/or the BL address.
    Type: Application
    Filed: March 21, 2017
    Publication date: August 10, 2017
    Applicant: Intel Corporation
    Inventors: RAYMOND W. ZENG, MASE J. TAUB, KIRAN PANGAL, SANDEEP K. GULIANI
  • Publication number: 20170199666
    Abstract: Apparatuses and methods for performing multithread, concurrent access of different partition of a memory are disclosed herein. An example apparatus may include a non-volatile memory array comprising a plurality of partitions. Each of the plurality of partitions may include a respective plurality of memory cells. The apparatus may further include a plurality of local controllers that are each configured to independently and concurrently access a respective one of the plurality of partitions to execute a respective memory access command of a plurality of memory access commands responsive to receiving the respective memory access command. The example apparatus may further include a controller configured to receive the plurality of memory access commands and to determine a respective target partition of the plurality of partitions for each of the plurality of memory access commands.
    Type: Application
    Filed: January 11, 2016
    Publication date: July 13, 2017
    Applicant: Micron Technology, Inc.
    Inventors: RAJESH SUNDARAM, DERCHANG KAU, OWEN W. JUNGROTH, DANIEL CHU, RAYMOND W. ZENG, SHEKOUFEH QAWAMI
  • Patent number: 9685213
    Abstract: Embodiments of the present disclosure describe techniques and configurations for controlling current in a non-volatile random access memory (NVRAM) device. In an embodiment, the NVRAM device may include a plurality of memory cells coupled to a plurality of bit lines forming a bit line node with parasitic capacitance. Each memory cell may comprise a switch device with a required level of a holding current to maintain an on-state of the cell. A voltage supply circuitry and a controller may be coupled with the NVRAM device. The controller may control the circuitry to provide a current pulse that keeps a memory cell in on-state. The pulse may comprise a profile that changes over time from a set point to the holding current level, in response to a discharge of the bit line node capacitance through the memory cell after the set point is achieved. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 20, 2017
    Assignee: Intel Corporation
    Inventors: Dany-Sebastien Ly-Gagnon, Kiran Pangal, Raymond W. Zeng, Mase J. Taub
  • Patent number: 9601193
    Abstract: The present disclosure relates to phase change memory control. An apparatus includes a memory controller. The memory controller includes a word line (WL) control module and a bit line (BL) control module. The memory controller is to determine a WL address based, at least in part, on a received memory address. The memory controller is further to determine a BL address. The apparatus further includes a parameter selection module to select a value of a control parameter based, at least in part, on at least one of the WL address and/or the BL address.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: March 21, 2017
    Assignee: INTEL CORPORATION
    Inventors: Raymond W. Zeng, Mase J. Taub, Kiran Pangal, Sandeep K. Guliani
  • Publication number: 20170076794
    Abstract: The present disclosure relates to phase change memory control. An apparatus includes a memory controller. The memory controller includes a word line (WL) control module and a bit line (BL) control module. The memory controller is to determine a WL address based, at least in part, on a received memory address. The memory controller is further to determine a BL address. The apparatus further includes a parameter selection module to select a value of a control parameter based, at least in part, on at least one of the WL address and/or the BL address.
    Type: Application
    Filed: September 14, 2015
    Publication date: March 16, 2017
    Applicant: INTEL CORPORATION
    Inventors: RAYMOND W. ZENG, MASE J. TAUB, KIRAN PANGAL, SANDEEP K. GULIANI
  • Publication number: 20170053698
    Abstract: Embodiments of the present disclosure describe techniques and configurations for controlling current in a non-volatile random access memory (NVRAM) device. In an embodiment, the NVRAM device may include a plurality of memory cells coupled to a plurality of bit lines forming a bit line node with parasitic capacitance. Each memory cell may comprise a switch device with a required level of a holding current to maintain an on-state of the cell. A voltage supply circuitry and a controller may be coupled with the NVRAM device. The controller may control the circuitry to provide a current pulse that keeps a memory cell in on-state. The pulse may comprise a profile that changes over time from a set point to the holding current level, in response to a discharge of the bit line node capacitance through the memory cell after the set point is achieved. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: November 9, 2016
    Publication date: February 23, 2017
    Inventors: Dany-Sebastien Ly-Gagnon, Kiran Pangal, Raymond W. Zeng, Mase J. Taub
  • Patent number: 9543004
    Abstract: Embodiments of the present disclosure describe techniques and configurations for controlling current in a non-volatile random access memory (NVRAM) device. In an embodiment, the NVRAM device may include a plurality of memory cells coupled to a plurality of bit lines forming a bit line node with parasitic capacitance. Each memory cell may comprise a switch device with a required level of a holding current to maintain an on-state of the cell. A voltage supply circuitry and a controller may be coupled with the NVRAM device. The controller may control the circuitry to provide a current pulse that keeps a memory cell in on-state. The pulse may comprise a profile that changes over time from a set point to the holding current level, in response to a discharge of the bit line node capacitance through the memory cell after the set point is achieved. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 10, 2017
    Assignee: INTEL CORPORATION
    Inventors: Dany-Sebastien Ly-Gagnon, Kiran Pangal, Raymond W. Zeng, Mase J. Taub