Patents by Inventor James S. Rehmeyer

James S. Rehmeyer 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: 20220148638
    Abstract: Methods, apparatuses, and systems related to voltage management of memory apparatuses/systems are described. The memory device can include circuitry configured to determine an operating frequency of a clock signal for an ongoing or an upcoming memory operation. The memory device may generate a control indicator for increasing a system voltage for higher operating frequencies, for decreasing the system voltage for lower operating frequencies, or a combination thereof.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Inventors: Gary L. Howe, Miles S. Wiscombe, James S. Rehmeyer, Eric J. Stave
  • Publication number: 20220139492
    Abstract: Memory devices are disclosed. A device may include a number of memory banks and a number of latch sets, wherein each latch set is associated with a memory bank. The device may also include a fuse array including a number of fuses. The device may further include circuitry configured to read data from a first set of fuses of the number of fuses and broadcast data from the first set of fuses to a first latch set of the number of latch sets. Further, in response to a repair result associated with the first set of fuses being a first state, the circuitry may be configured to read a second set of fuses and broadcast the second set of fuses to the first latch set. Methods of operating a memory device, microelectronic devices, semiconductor devices, and electronic systems are also disclosed.
    Type: Application
    Filed: January 10, 2022
    Publication date: May 5, 2022
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer, Seth A. Eichmeyer
  • Publication number: 20220139489
    Abstract: A memory device includes a memory bank that includes a first set of memory rows in a first section of the memory bank, a first set of redundant rows in a first section of the memory bank, a second set of memory rows in a second section of the memory bank, and a second set of redundant rows in the second section of the memory bank. The memory bank also includes a repeater blocker circuit that when in operation selectively blocks a signal from transmission to the second section of the memory bank and blocker control circuitry that when in operation transmits a control signal to control the selective blocking of the signal by the repeater blocker circuit.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 5, 2022
    Inventors: James S. Rehmeyer, Yoshinori Fujiwara
  • Patent number: 11309012
    Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for staggering the timing of targeted refresh operations. A memory device may include a number of memory banks, at least some of which may be simultaneously entered into a refresh mode. A given memory bank may perform an auto-refresh operation or a targeted refresh operation, which may draw less power than the auto-refresh operation. The timing of the targeted refresh operations may be staggered between the refreshing memory banks, such that a portion of the refreshing memory banks are performing a targeted refresh operation simultaneously with a portion of the refreshing memory banks performing an auto-refresh operation.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: April 19, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Nathaniel J. Meier, James S. Rehmeyer
  • Publication number: 20220101913
    Abstract: Memory devices, systems, and associated methods with per die temperature-compensated refresh control, and associated methods, are disclosed herein. In one embodiment, a memory device includes a plurality of memory cells and a sensor configured to measure a temperature of the memory device. The memory device determines a frequency at which it is receiving refresh commands. The memory device is further configured to skip refresh operations of the memory cells based, at least in part, on the determination and on the temperature of the memory device.
    Type: Application
    Filed: December 8, 2021
    Publication date: March 31, 2022
    Inventors: James S. Rehmeyer, Jason M. Johnson, Joo-Sang Lee
  • Publication number: 20220093488
    Abstract: An improved memory module and methods for constructing the same are disclosed herein. The memory module includes a substrate having a first surface and a second surface opposite the first surface, each having a central portion, a first array area and a second array area. The first array area is cooler than the second array area during operation. The memory module also includes a power management integrated circuit attached to the central portion of the first surface. The memory module also includes a first semiconductor die attached to the substrate in the first array area. The first semiconductor die has a first performance rating of an operating parameter at high temperatures. The memory module also includes a second semiconductor die attached to the substrate in the second array area. The second semiconductor die has a second performance rating of an operating parameter better than the first performance rating at high temperatures.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 24, 2022
    Inventors: James S. Rehmeyer, Christopher G. Wieduwilt
  • Patent number: 11282562
    Abstract: Methods, systems, and devices for refresh-related activation in memory are described. A memory device may conduct a refresh operation to preserve the integrity of data. A refresh operation may be associated with a refresh time where the memory device is unable to execute or issue any commands (e.g., access commands). By posting (e.g., saving) one or more commands and/or row addresses during the refresh time, the memory device may be configured to execute the saved commands and/or re-open one or more rows associated with the saved row addresses at a later time (e.g., upon completion of the refresh operation). Accordingly, fewer commands may be issued to activate the memory cells after the refresh time.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: March 22, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Stephen Michael Kaminski, Anthony D. Veches, James S. Rehmeyer, Debra M. Bell, Dale Herber Hiscock, Joshua E. Alzheimer
  • Patent number: 11276454
    Abstract: Memory devices and systems with partial array refresh control over memory regions in a memory array, and associated methods, are disclosed herein. In one embodiment, a memory device includes a memory array having a first memory region and a second memory region. The memory device is configured to write data to the memory array in accordance with a programming sequence by initially writing data to unutilized memory cells of the first memory region before initially writing data to unutilized memory cells of the second memory region. The memory device is further configured to determine that the data stored on the first and/or second memory regions is not consolidated, and to consolidate at least a portion of the data by rewriting the portion of the data to physically or logically contiguous memory cells of the first memory region and/or the second memory region.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: March 15, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Dale H. Hiscock, Debra M. Bell, Michael Kaminski, Joshua E. Alzheimer, Anthony D. Veches, James S. Rehmeyer
  • Publication number: 20220044720
    Abstract: Methods of operating a number of memory devices are disclosed. A method may include receiving, at each of a number of memory devices, a refresh command. The method may also include refreshing, at each of the number of memory devices and in response to the refresh command, a number of memory cells based on a count of an associated refresh address counter, wherein a count of a refresh address counter of at least one memory device of the number of memory devices is offset from a count of a refresh address counter of at least one other memory device of the number of memory devices. Related systems and memory modules are also described.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 10, 2022
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer
  • Patent number: 11244741
    Abstract: Memory devices are disclosed. A memory device may include a number of memory banks and a number of latch sets, wherein each latch set is associated with a memory bank. The device may also include a fuse array including a number of fuses. The device may further include circuitry configured to read data from a first set of fuses of the number of fuses and broadcast data from the first set of fuses to a first latch set of the number of latch sets. Further, in response to a repair result associated with the first set of fuses being a first state, the circuitry may be configured to read a second set of fuses and broadcast the second set of fuses to the first latch set. Methods of operating a memory device, and electronic systems are also disclosed.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: February 8, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer, Seth A. Eichmeyer
  • Patent number: 11227649
    Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for staggering the timing of targeted refresh operations. A memory device may include a number of memory banks, at least some of which may be simultaneously entered into a refresh mode. A given memory bank may perform an auto-refresh operation or a targeted refresh operation, which may draw less power than the auto-refresh operation. The timing of the targeted refresh operations may be staggered between the refreshing memory banks, such that a portion of the refreshing memory banks are performing a targeted refresh operation simultaneously with a portion of the refreshing memory banks performing an auto-refresh operation.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 18, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Nathaniel J. Meier, James S. Rehmeyer
  • Patent number: 11222683
    Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for staggering the timing of targeted refresh operations. Memory dies may need to periodically perform refresh operations, which may be auto-refresh operations or targeted refresh operations. Targeted refresh operations may draw less current than auto-refresh operations. When dies are collected into a group (e.g., a memory stack, a memory module) the timing of targeted refresh operations may be staggered between the different dies to help reduce the peak current drawn. The targeted refresh operations may be staggered such that, when a maximum number of the dies are performing a refresh operation, at least one of the dies performs a targeted refresh operation instead of an auto-refresh operation.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 11, 2022
    Assignee: Micron Technology, Inc.
    Inventor: James S. Rehmeyer
  • Publication number: 20220005523
    Abstract: Memory devices, systems, and associated methods with per die temperature-compensated refresh control, and associated methods, are disclosed herein. In one embodiment, a memory device includes a plurality of memory cells and a sensor configured to measure a temperature of the memory device. The memory device determines a frequency at which it is receiving refresh commands. The memory device is further configured to skip refresh operations of the memory cells based, at least in part, on the determination and on the temperature of the memory device.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 6, 2022
    Inventors: James S. Rehmeyer, Jason M. Johnson, Joo-Sang Lee
  • Patent number: 11217296
    Abstract: Methods, systems, and devices for staggered refresh counters for a memory device are described. The memory device may include a set of memory dies each coupled with a common command and address (CA) bus and each including a respective refresh counter. In response to a refresh command received over the CA bus, each memory die may refresh a set of memory cells based on a value output by the respective refresh counter for the memory die. The refresh counters for at least two of the memory dies of the memory device may be offset such that they indicate different values when a refresh command is received over the CA bus, and thus at least two of the memory dies may refresh memory cells in different sections of their respective arrays. Offsets between refresh counters may be based on different fuse settings associated with the different memory dies.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: January 4, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer
  • Publication number: 20210398603
    Abstract: Methods, apparatuses and systems related to managing repair assets are described. An apparatus stores a repair segment locator and a repair address for each defect repair. The apparatus may be configured to selectively apply a repair asset to one of multiple sections according to the repair segment locator.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer, Seth A. Eichmeyer
  • Patent number: 11200939
    Abstract: Memory devices, systems, and associated methods with per die temperature-compensated refresh control, and associated methods, are disclosed herein. In one embodiment, a memory device includes a plurality of memory cells and a sensor configured to measure a temperature of the memory device. The memory device determines a frequency at which it is receiving refresh commands. The memory device is further configured to skip refresh operations of the memory cells based, at least in part, on the determination and on the temperature of the memory device.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: December 14, 2021
    Assignee: Micron Technology, Inc.
    Inventors: James S. Rehmeyer, Jason M. Johnson, Joo-Sang Lee
  • Publication number: 20210343323
    Abstract: Methods, systems, and devices for refresh command management are described. A memory device may conduct a refresh operation to preserve the integrity of data stored to one or more memory cells. In some examples, the frequency of refresh operations conducted may be based on the memory device's temperature and may be initiated based on one or more commands received from an external device (e.g., a host device). Each command may be transmitted by the host device at a defined rate, which may impact the rate at which the memory device conducts one or more refresh operations. The memory device may postpone or skip at least a portion of one or more refresh operations based on one or more operating parameters of the memory device.
    Type: Application
    Filed: May 13, 2021
    Publication date: November 4, 2021
    Inventors: Nathaniel J. Meier, James S. Rehmeyer, Sang-Kyun Park, Makoto Kitayama
  • Publication number: 20210335394
    Abstract: A memory device is provided. The memory device comprises a memory array and circuitry configured to determine one or more settings for the memory array corresponding to a powered-on state of the memory device, to store the one or more settings in a non-volatile memory location, and in response to returning to the powered-on state from a reduced-power state, to read the one or more settings from the non-volatile memory location.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Jonathan S. Parry, George B. Raad, James S. Rehmeyer, Timothy B. Cowles
  • Publication number: 20210326732
    Abstract: Embodiments of the disclosure are drawn to apparatuses, systems, methods for an internet of things (IoT) system to include edge devices that perform at least some functions without communicating with a cloud computing system. An edge device may include a memory with on-memory pattern matching capabilities. The edge device may perform pattern matching operations on data collected by the edge device or sensors in communication with the edge device. Based on results of the pattern matching operations, the edge device may perform various functions, such as transmitting data to the cloud computing system, activating an alarm, and/or changing a frequency at which data is transmitted.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 21, 2021
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: DEBRA M. BELL, JAMES S. REHMEYER, BRETT K. DODDS, ANTHONY D. VECHES, LIBO WANG, DI WU
  • Publication number: 20210312310
    Abstract: Embodiments of the disclosure are drawn to apparatuses, systems, methods for performing operations associated with machine learning. Machine learning operations may include processing a data set, training a machine learning algorithm, and applying a trained algorithm to a data set. Some of the machine learning operations, such as pattern matching operations, may be performed within a memory device.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 7, 2021
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Di Wu, Anthony D. Veches, James S. Rehmeyer, Debra M. Bell, Libo Wang