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: 20240128189
    Abstract: An antifuse device, including a gate having a gate dielectric layer; a first doping region connected to a first end of the gate; a second doping region connected to a second end of the gate, the second end being opposite to the first end of the gate; a channel that is disposed under the gate and that connects the first doping region and the second doping region; and an interconnection jumper that electrically connects the first doping region and the second doping region.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer
  • Patent number: 11954338
    Abstract: A memory device includes a memory cell array and a set of fuse banks including a common fuse bank storing common bit information corresponding to a plurality of defective memory cells in the memory cell array. The memory device including a plurality of match sub-circuits corresponding to respective defective memory cells of the plurality of defective memory cells. Each match sub-circuit can be configured to provide a determination of whether a memory cell address of a memory cell of the memory cell array matches an address of the respective defective memory cell. The plurality of match sub-circuit can include a shared common bit-processing circuit that is configured to receive common bit-by-bit results of a comparison between a portion of the memory cell address and the common bit information. The common bit-processing circuit can determine whether the common bit information matches the portion of the memory cell address.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: April 9, 2024
    Assignee: Micron Technology, Inc.
    Inventors: James S. Rehmeyer, Christopher G. Wieduwilt
  • Patent number: 11948660
    Abstract: Fuses can store different delay states to cause execution of a command to be staggered for different memory dies of a memory package. Fuse arrays can be included in the memory package and programmed to cause execution of a command to be delayed by different amounts for different dies. The fuse arrays can be fabricated and then programmed to cause different delays for different dies.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: April 2, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Christopher G. Wieduwilt, Lawrence D. Smith, James S. Rehmeyer
  • Patent number: 11929139
    Abstract: Methods of optimizing the placement of memories in a memory device including a substrate and an electrical component, and associated devices and systems, are disclosed herein. A representative method includes first testing the memories to determine at least one parameter for each of the memories indicating an ability of the memory to process signals from the electrical component. The method can further include labeling each memory with a label based on the parameter, the labels including at least a first label and a second label. The first label can indicate that the memories with the first label are better able to process signals from the electrical component than the memories with the second label. The method can further include electrically coupling the memories to the substrate such that the memories with the second label are positioned closer to the electrical component than the memories with the first label.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: March 12, 2024
    Assignee: Micron Technology, Inc.
    Inventors: James S. Rehmeyer, Christopher G. Wieduwilt
  • Patent number: 11930636
    Abstract: Transistor antifuses are disclosed. An apparatus may include an antifuse that may be configurable either as a short between a first node and a second node or as an open between the first node and the second node. The antifuse may include a selection transistor and an antifuse transistor. A source or drain of the selection transistor may be electrically coupled to the first node. A gate of the selection transistor may be configured to receive a selection voltage. A gate of the antifuse transistor may be electrically coupled the other of the source or drain of the selection transistor. A source or drain of the antifuse transistor may be electrically coupled to the second node. Associated devices, systems, and methods are also disclosed.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: March 12, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer, Toshihiko Miyashita
  • Patent number: 11915737
    Abstract: Methods, apparatuses, and systems related to managing operations performed in response to refresh management (RFM) commands A controller generates the RFM command for coordinating a refresh management operation targeted for implementation at an apparatus. The apparatus tracks refresh target set that includes refresh management target locations within the apparatus. According to the tracked refresh management target set, the apparatus selectively implements the targeted refresh management operation and/or a response operation in addition to or as a replacement for the targeted refresh management operation.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: February 27, 2024
    Inventors: Nathaniel J. Meier, James S. Rehmeyer, David R. Brown
  • Publication number: 20240062801
    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: September 1, 2023
    Publication date: February 22, 2024
    Inventors: James S. Rehmeyer, Jason M. Johnson, Joo-Sang Lee
  • Patent number: 11908508
    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: March 1, 2022
    Date of Patent: February 20, 2024
    Inventors: Dale H. Hiscock, Debra M. Bell, Michael Kaminski, Joshua E. Alzheimer, Anthony D. Veches, James S. Rehmeyer
  • Patent number: 11900983
    Abstract: Provided herein are memory devices, systems including memory devices, and methods of operating memory devices in which multiple counters are provided to permit memory refresh commands greater freedom in targeting subsets of the memory device for data refresh operations. In one embodiment, a memory device is provided, comprising a plurality of memory banks, and circuitry configured to (i) store a plurality of values, each of the plurality of values corresponding to one of the plurality of memory banks; (ii) refresh first data stored in a first one of the plurality of memory banks; and (iii) update a first one of the plurality of values corresponding to the first one of the plurality of memory banks based at least in part on refreshing the first data.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: February 13, 2024
    Inventors: George B. Raad, Jonathan S. Parry, James S. Rehmeyer, Timothy B. Cowles
  • Patent number: 11887649
    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: Grant
    Filed: July 28, 2021
    Date of Patent: January 30, 2024
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer
  • Patent number: 11881245
    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: Grant
    Filed: September 7, 2022
    Date of Patent: January 23, 2024
    Inventors: Gary L. Howe, Miles S. Wiscombe, James S. Rehmeyer, Eric J. Stave
  • Patent number: 11869826
    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: Grant
    Filed: September 23, 2020
    Date of Patent: January 9, 2024
    Assignee: Micron Technology, Inc.
    Inventors: James S. Rehmeyer, Christopher G. Wieduwilt
  • Patent number: 11869620
    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: Grant
    Filed: January 10, 2022
    Date of Patent: January 9, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer, Seth A. Eichmeyer
  • Patent number: 11829366
    Abstract: Embodiments of the disclosure are drawn to apparatuses, systems, methods, and memories that are capable of performing pattern matching operations within a memory device. The pattern matching operations may be performed on data stored within the memory based on a pattern stored in a register. The result of the pattern matching operation may be provided by the memory. The data on which the pattern matching operation is performed may not be output from the memory during the pattern matching operation.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: November 28, 2023
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Debra M. Bell, Libo Wang, Di Wu, James S. Rehmeyer, Anthony D. Veches
  • Patent number: 11783909
    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: Grant
    Filed: July 29, 2022
    Date of Patent: October 10, 2023
    Assignee: Micron Technology, Inc.
    Inventors: James S. Rehmeyer, Yoshinori Fujiwara
  • Patent number: 11776612
    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: December 8, 2021
    Date of Patent: October 3, 2023
    Inventors: James S. Rehmeyer, Jason M. Johnson, Joo-Sang Lee
  • Patent number: 11769561
    Abstract: Memory devices, systems including memory devices, and methods of operating memory devices and systems are provided, in which at least a subset of a non-volatile memory array is configured to behave as read-only memory by not implementing erase or write commands. In one embodiment of the present technology, a memory device is provided, comprising a non-volatile memory array, and circuitry configured to store one or more addresses of the non-volatile memory array, to compare an address of a received command to the one or more addresses, and at least in part based on the comparison, determine not to implement the received command. The circuitry can be further configured to return an error message after determining not to implement the received command.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: September 26, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Timothy B. Cowles, George B. Raad, James S. Rehmeyer, Jonathan S. Parry
  • Patent number: 11742028
    Abstract: Memory devices, systems including memory devices, and methods of operating memory devices and systems are provided, in which at least a subset of a non-volatile memory array is configured to behave as a volatile memory by erasing or degrading data in the event of a changed power condition such as a power-loss event, a power-off event, or a power-on event. In one embodiment of the present technology, a memory device is provided, comprising a non-volatile memory array, and circuitry configured to store one or more addresses of the non-volatile memory array, to detect a changed power condition of the memory device, and to erase or degrade data at the one or more addresses in response to detecting the changed power condition.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: August 29, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Timothy B. Cowles, George B. Raad, James S. Rehmeyer, Jonathan S. Parry
  • Patent number: 11710514
    Abstract: First signaling indicative of instructions to enter a self-refresh (SREF) mode can be received concurrently by a plurality of memory dies. Responsive to a memory die of the plurality of memory dies entering the SREF mode, self-refreshing of memory banks of the memory die can be delayed, at the memory die and based on fuse states of an array of fuses of the memory die, an amount of time relative to receipt of the signaling by the memory die. Delaying self-refreshing of memory banks of memory dies in a staggered, or asynchronous, manner can evenly distribute power consumption of the memory dies so that the likelihood of an associated power spike is reduced or eliminated.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: July 25, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Christopher D. Wieduwilt, Lawrence D. Smith, James S. Rehmeyer
  • Patent number: 11694762
    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: Grant
    Filed: September 3, 2021
    Date of Patent: July 4, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Christopher G. Wieduwilt, James S. Rehmeyer, Seth A. Eichmeyer