Patents by Inventor Charles L. Ingalls

Charles L. Ingalls 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: 11967362
    Abstract: A memory device includes multiple memory cells configured to store data. The memory device also includes multiple digit lines each configured to carry data to and from a respective memory cell. The memory device further includes multiple sense amplifiers each selectively coupled to respective digit lines and including first and second NMOS transistors and first and second gut nodes coupled to the first and second NMOS transistors, respectively. Each sense amplifier is configured to perform threshold compensation for the first and second NMOS transistors by storing respective voltages at the first and second gut nodes that are proportional to the respective threshold voltages of the first and second NMOS transistors. The sense amplifier also amplifies a differential voltage between the first and second gut nodes by charging the first gut node and discharging the second gut node based at least in part on respective charges of the digit lines.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: April 23, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Huy T. Vo, Christopher K. Morzano, Christopher J. Kawamura, Charles L. Ingalls
  • Publication number: 20230395130
    Abstract: A memory device includes multiple memory cells configured to store data. The memory device also includes multiple digit lines each configured to carry data to and from a respective memory cell. The memory device further includes multiple sense amplifiers each selectively coupled to respective digit lines and including first and second NMOS transistors and first and second gut nodes coupled to the first and second NMOS transistors, respectively. Each sense amplifier is configured to perform threshold compensation for the first and second NMOS transistors by storing respective voltages at the first and second gut nodes that are proportional to the respective threshold voltages of the first and second NMOS transistors. The sense amplifier also amplifies a differential voltage between the first and second gut nodes by charging the first gut node and discharging the second gut node based at least in part on respective charges of the digit lines.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 7, 2023
    Inventors: Huy T. Vo, Christopher K. Morzano, Christopher J. Kawamura, Charles L. Ingalls
  • Patent number: 11715513
    Abstract: Apparatuses and methods for sense line architectures for semiconductor memories are disclosed. An example apparatus includes a first array region including first portions of a plurality of sense lines and memory cells coupled to the first portions of the plurality of sense lines and further includes a second array region including second portions of the plurality of sense lines and memory cells coupled to the second portions of the plurality of sense lines. An array gap is disposed between the first and second array regions and includes third portions of the plurality of sense lines and does not include any memory cells. Each third portion of the plurality of sense lines includes conductive structures having vertical components configured to couple the first portions and second portions of the plurality of sense lines to provide an electrically continuous sense lines through the first and second array regions and the array gap.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: August 1, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Toby D. Robbs, Charles L. Ingalls
  • Patent number: 11699473
    Abstract: A FX phase driver for a memory device having a first driver circuit including a first pull-up circuit configured to drive a first phase signal to a first high state value and a first pull-down circuit configured to drive the first phase signal to a first low state value. The phase driver also including a second driver circuit including a second pull-up circuit configured to drive a second phase signal to a second high state value that is higher than an active state voltage level of a word line in the memory device and a second pull-down circuit configured to drive the second phase signal to a second low state value. The second pull-down circuit includes a stabilization circuit configured to provide a resistive path for a leakage current in the second pull-down circuit when the second pull-up circuit drives the second phase signal to the second high state value.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: July 11, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Charles L. Ingalls, Tae H. Kim
  • Patent number: 11636890
    Abstract: Methods, systems, and apparatuses for memory array bit inversion are described. A memory cell (e.g., a ferroelectric memory cell) may be written with a charge associated with a logic state that may be the inverse of the intended logic state of the cell. That is, the actual logic state of one or more memory cells may be inverted, but the intended logic state of the memory cells may remain unchanged. Different sets of transistors may be configured around a sense component of a cell to enable reading and writing of intended and inverted logic states from or to the cell. For instance, a first set of transistors may be used to read the logic state currently stored at a memory cell, while a second set of transistors may be used to read a logic state inverted from the currently stored logic state.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: April 25, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Charles L. Ingalls, Scott J. Derner
  • Publication number: 20220382658
    Abstract: Methods, systems, and apparatuses for storing operational information related to operation of a non-volatile array are described. For example, the operational information may be stored in a in a subarray of a memory array for use in analyzing errors in the operation of memory array. In some examples, an array driver may be located between a command decoder and a memory array. The array driver may receive a signal pattern used to execute an access instruction for accessing non-volatile memory cells of a memory array and may access the first set of non-volatile memory cells according to the signal pattern. The array driver may also store the access instruction (e.g., the binary representation of the access instruction) at a non-volatile subarray of the memory array.
    Type: Application
    Filed: June 29, 2022
    Publication date: December 1, 2022
    Inventors: Christopher John Kawamura, Scott James Derner, Charles L. Ingalls
  • Publication number: 20220384452
    Abstract: Some embodiments include an integrated assembly having an access transistor. The access transistor has a first source/drain region gatedly coupled with a second source/drain region. A digit line is coupled with the first source/drain region. A charge-storage device is coupled with the second source/drain region through an interconnect. The interconnect includes a length of a semiconductor material. A protective transistor gates a portion of the length of the semiconductor material.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Publication number: 20220367465
    Abstract: Some embodiments include an integrated assembly having a primary access transistor. The primary access transistor has a first source/drain region and a second source/drain region. The first and second source/drain regions are coupled to one another when the primary access transistor is in an ON mode, and are not coupled to one another when the primary access transistor is in an OFF mode. A charge-storage device is coupled with the first source/drain region. A digit line is coupled with the second source/drain region through a secondary access device. The secondary access device has an ON mode and an OFF mode. The digit line is coupled with the charge-storage device only when both the primary access transistor and the secondary access device are in their respective ON modes.
    Type: Application
    Filed: July 29, 2022
    Publication date: November 17, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Patent number: 11450740
    Abstract: Some embodiments include an integrated assembly having an access transistor. The access transistor has a first source/drain region gatedly coupled with a second source/drain region. A digit line is coupled with the first source/drain region. A charge-storage device is coupled with the second source/drain region through an interconnect. The interconnect includes a length of a semiconductor material. A protective transistor gates a portion of the length of the semiconductor material.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: September 20, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Patent number: 11450668
    Abstract: Some embodiments include an integrated assembly having a primary access transistor. The primary access transistor has a first source/drain region and a second source/drain region. The first and second source/drain regions are coupled to one another when the primary access transistor is in an ON mode, and are not coupled to one another when the primary access transistor is in an OFF mode. A charge-storage device is coupled with the first source/drain region. A digit line is coupled with the second source/drain region through a secondary access device. The secondary access device has an ON mode and an OFF mode. The digit line is coupled with the charge-storage device only when both the primary access transistor and the secondary access device are in their respective ON modes.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: September 20, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Patent number: 11392468
    Abstract: Methods, systems, and apparatuses for storing operational information related to operation of a non-volatile array are described. For example, the operational information may be stored in a in a subarray of a memory array for use in analyzing errors in the operation of memory array. In some examples, an array driver may be located between a command decoder and a memory array. The array driver may receive a signal pattern used to execute an access instruction for accessing non-volatile memory cells of a memory array and may access the first set of non-volatile memory cells according to the signal pattern. The array driver may also store the access instruction (e.g., the binary representation of the access instruction) at a non-volatile subarray of the memory array.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: July 19, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Christopher John Kawamura, Scott James Derner, Charles L. Ingalls
  • Patent number: 11380388
    Abstract: In the examples disclosed herein, a memory array can have a first group of memory cells coupled to a first digit line at a first level and a second group of memory cells coupled to a second digit line at the first level. A third digit line can be at a second level and can be coupled to a main sense amplifier. A first vertical thin film transistor (TFT) can be at a third level between the first and second levels can be coupled between the first digit line and the third digit line. A second vertical TFT can be at the third level and can be coupled between the second digit line and the third digit line. A local sense amplifier can be coupled to the first and second digit lines.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: July 5, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Patent number: 11342014
    Abstract: Embodiments herein relate to column select circuitry of a memory device. Specifically, the column select circuitry includes a pre-header circuit coupled to a pre-driver circuit. The pre-header circuit is configured to couple a gate of a transistor of a main column select driver circuit of the column select circuitry to a first voltage supply during operation and a second voltage supply when in a standby state. A voltage of the second voltage supply is greater than a voltage of the first voltage supply. The voltage of the second power supply applied to the gate of the transistor of the main column select driver circuit reduces current leakage through the transistor and enables a reduction in a size of the column select circuitry.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: May 24, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Charles L. Ingalls
  • Publication number: 20220157836
    Abstract: Some embodiments include an integrated assembly. The integrated assembly has a first transistor with a horizontally-extending channel region between a first source/drain region and a second source/drain region; has a second transistor with a vertically-extending channel region between a third source/drain region and a fourth source/drain region; and has a capacitor between the first and second transistors. The capacitor has a first electrode, a second electrode, and an insulative material between the first and second electrodes. The first electrode is electrically connected with the first source/drain region, and the second electrode is electrically connected with the third source/drain region. A digit line is electrically connected with the second source/drain region. A conductive structure is electrically connected with the fourth source/drain region.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Applicant: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Publication number: 20220130449
    Abstract: Apparatuses and methods for sense line architectures for semiconductor memories are disclosed. An example apparatus includes a first array region including first portions of a plurality of sense lines and memory cells coupled to the first portions of the plurality of sense lines and further includes a second array region including second portions of the plurality of sense lines and memory cells coupled to the second portions of the plurality of sense lines. An array gap is disposed between the first and second array regions and includes third portions of the plurality of sense lines and does not include any memory cells. Each third portion of the plurality of sense lines includes conductive structures having vertical components configured to couple the first portions and second portions of the plurality of sense lines to provide an electrically continuous sense lines through the first and second array regions and the array gap.
    Type: Application
    Filed: January 11, 2022
    Publication date: April 28, 2022
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Toby D. Robbs, Charles L. Ingalls
  • Patent number: 11264394
    Abstract: Some embodiments include an integrated assembly. The integrated assembly has a first transistor with a horizontally-extending channel region between a first source/drain region and a second source/drain region; has a second transistor with a vertically-extending channel region between a third source/drain region and a fourth source/drain region; and has a capacitor between the first and second transistors. The capacitor has a first electrode, a second electrode, and an insulative material between the first and second electrodes. The first electrode is electrically connected with the first source/drain region, and the second electrode is electrically connected with the third source/drain region. A digit line is electrically connected with the second source/drain region. A conductive structure is electrically connected with the fourth source/drain region.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: March 1, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Patent number: 11250900
    Abstract: Methods, systems, and devices for operating a ferroelectric memory cell or cells are described. A memory array may be operated in a half density mode, in which a subset of the memory cells is designated as reference memory cells. Each reference memory cell may be paired to an active memory cell and may act as a reference signal when sensing the active memory cell. Each pair of active and reference memory cells may be connected to a single access line. Sense components (e.g., sense amplifiers) associated with reference memory cells may be deactivated in half density mode. The entire memory array may be operated in half density mode, or a portion of the array may operate in half density mode and the remainder of the array may operate in full density mode.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: February 15, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Patent number: 11232829
    Abstract: Apparatuses and methods for sense line architectures for semiconductor memories are disclosed. An example apparatus includes a first array region including first portions of a plurality of sense lines and memory cells coupled to the first portions of the plurality of sense lines and further includes a second array region including second portions of the plurality of sense lines and memory cells coupled to the second portions of the plurality of sense lines. An array gap is disposed between the first and second array regions and includes third portions of the plurality of sense lines and does not include any memory cells. Each third portion of the plurality of sense lines includes conductive structures having vertical components configured to couple the first portions and second portions of the plurality of sense lines to provide an electrically continuous sense lines through the first and second array regions and the array gap.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: January 25, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Toby D. Robbs, Charles L. Ingalls
  • Patent number: 11232828
    Abstract: Some embodiments include an integrated memory assembly having a first memory array deck over a second memory array deck. A first series of conductive lines extends across the first memory array deck, and a second series of conductive lines extends across the second memory array deck. A first conductive line of the first series and a first conductive line of the second series are coupled with a first component through a first conductive path. A second conductive line of the first series and a second conductive line of the second series are coupled with a second component through a second conductive path. The first and second conductive lines of the first series extend through first isolation circuitry to the first and second conductive paths, respectively; and the first and second conductive lines of the second series extend through second isolation circuitry to the first and second conductive paths, respectively.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: January 25, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Scott J. Derner, Charles L. Ingalls
  • Patent number: 11227861
    Abstract: Some embodiments include an integrated assembly having a base comprising sense-amplifier-circuitry, a first deck over the base, and a second deck over the first deck. The first deck includes a first portion of a first array of first memory cells, and includes a first portion of a second array of second memory cells. The second deck includes a second portion of the first array of the first memory cells, and includes a second portion of the second array of the second memory cells. A first digit line is associated with the first array, and a second digit line is associated with the second array. The first and second digit lines are comparatively coupled with one another through the sense-amplifier-circuitry.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: January 18, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Hiroki Fujisawa, Charles L. Ingalls, Richard J. Hill, Gurtej S. Sandhu, Scott J. Derner