Patents Examined by Pho M. Luu
  • Patent number: 11769557
    Abstract: Techniques for preventing read disturb in NAND memory devices are described. In one example, reads are tracked for sub-groups. When the number of reads to a sub-group meets a threshold, the data at the wordline on which the threshold was met is moved along with the data at neighboring wordlines to an SLC block without moving the entire block. The performance impact and write amplification impact of read disturb mitigation can be significantly reduced while maintaining some data continuity.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: September 26, 2023
    Assignee: Intel Corporation
    Inventors: Arun Sitaram Athreya, Shankar Natarajan, Sriram Natarajan, Yihua Zhang, Suresh Nagarajan
  • Patent number: 11769804
    Abstract: A method includes providing a substrate including a channel region, the substrate comprising a two-stage structure having a first surface, a second surface higher than the first surface and a third surface connected between the first surface and the second surface; covering the substrate from a top thereof with an oxide layer; forming a ferroelectric material strip on a topmost surface of the oxide layer; and forming a gate strip covering the ferroelectric material strip and the oxide layer from a top of the gate strip.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: September 26, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Nuo Xu, Zhiqiang Wu
  • Patent number: 11765981
    Abstract: A magnetoresistance effect element with a small element size can be provided which achieves both an increase in a thermal stability factor ? and a reduction in a writing current IC0 and which improves a performance index ?/IC0(?A?1) obtained by dividing the thermal stability factor ? by the writing current IC0. The magnetoresistance effect element includes a first reference layer (B1), a first junction layer (11), a first magnetic layer (21), a first non-magnetic coupling layer (31), a second magnetic layer (22), and a second junction layer (12), and a film thickness of the first non-magnetic coupling layer (31) is 0.1 nm or more and 0.3 nm or less.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: September 19, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventors: Sadahiko Miura, Hiroaki Honjo, Hideo Sato, Shoji Ikeda, Tetsuo Endoh
  • Patent number: 11756609
    Abstract: The invention describes a memory device which combines a switchable resistive element and a superconductor element electrically in parallel. The switchable resistive element comprises an active material, which is switchable between first and second values of electrical resistivity ?1 and ?2 at the same temperature, wherein ?1 is different to ?2. The superconductor element is operable so that at least part of the superconductor element is switchable from a superconducting state to a non-superconducting state. When the superconductor element is switched from the superconducting state to the non-superconducting state, a current injection is provided through the switchable resistive element capable of switching the switchable resistive element between said first and second values of electrical resistivity.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: September 12, 2023
    Assignees: Center of Excellence on Nanoscience and Nanotechnology—Nanocenter, Jozef Stefan Institute
    Inventors: Dragan Mihailovic, Damjan Svetin, Anze Mraz, Rok Venturini
  • Patent number: 11756946
    Abstract: A semiconductor storage device includes a plurality of memory chips and a circuit chip. The plurality of memory chips and the circuit chip are stacked on each other. Each of the plurality of memory chips has a memory cell array that includes a plurality of memory cells. The circuit chip includes a data latch configured to store page data for writing or reading data into or from the memory cell array of each of the memory chips.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: September 12, 2023
    Assignee: Kioxia Corporation
    Inventors: Tomoya Sanuki, Toshio Fujisawa, Hiroshi Maejima, Takashi Maeda
  • Patent number: 11758708
    Abstract: To compensate switching of a dielectric component of a non-linear polar material based capacitor, an explicit dielectric capacitor is added to a memory bit-cell and controlled by a signal opposite to the signal driven on a plate-line.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: September 12, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Rajeev Kumar Dokania, Noriyuki Sato, Tanay Gosavi, Amrita Mathuriya, Sasikanth Manipatruni
  • Patent number: 11749340
    Abstract: Semiconductor devices and methods are provided. A semiconductor device of the present disclosure includes a bias source, a memory cell array including a first region adjacent to the bias source and a second region away from the bias source, and a conductive line electrically coupled to the bias source, a first memory cell in the first region and a second memory cell in the second region. The first memory cell is characterized by a first alpha ratio and the second memory cell is characterized by a second alpha ratio smaller than the first alpha ratio.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: September 5, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Chuan Yang, Shih-Hao Lin
  • Patent number: 11749359
    Abstract: Control logic in a memory device initiates a program operation on the memory device, and causes a program voltage to be applied to a selected wordline of the memory array during a program phase of the program operation. The control logic further causes a select gate drain coupled with a string of memory cells in the memory array to deactivate during a recovery phase after applying the program voltage, wherein the string of memory cells comprises a plurality of memory cells, and wherein each memory cell of the plurality of memory cells is coupled to a corresponding wordline of a plurality of wordlines in the memory array.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: September 5, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Hong-Yan Chen, Yingda Dong
  • Patent number: 11751403
    Abstract: To compensate switching of a dielectric component of a non-linear polar material based capacitor, an explicit dielectric capacitor is added to a memory bit-cell and controlled by a signal opposite to the signal driven on a plate-line.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: September 5, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Rajeev Kumar Dokania, Noriyuki Sato, Tanay Gosavi, Amrita Mathuriya, Sasikanth Manipatruni
  • Patent number: 11749358
    Abstract: A semiconductor integrated circuit includes a register, a first interface circuit, an oscillation circuit that generates a first clock, a pll circuit, a control circuit, and a second interface circuit. The register stores numerical information representing a data size. The first interface circuit receives, from a first device, a first timing signal for data transfer. Responding to receipt of the first timing signal, the control circuit inputs the first timing signal to the pll circuit and counts the number of toggles of the first timing signal. When a counted number of toggles of the first timing signal matches a value corresponding to the numerical information, the control circuit inputs the first clock to the pll circuit. The second interface circuit transmits, to a second device, the first timing signal or a second timing signal, which corresponds to a second clock generated based on the first clock by the pll circuit.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: September 5, 2023
    Assignee: Kioxia Corporation
    Inventor: Tomoaki Suzuki
  • Patent number: 11742022
    Abstract: A semiconductor memory cell including a capacitorless transistor having a floating body configured to store data as charge therein when power is applied to the cell, and a non-volatile memory comprising a bipolar resistive change element, and methods of operating.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: August 29, 2023
    Assignee: Zeno Semiconductor Inc.
    Inventor: Yuniarto Widjaja
  • Patent number: 11735231
    Abstract: A memory device includes a first cell block on a substrate at a first level, and a second cell block on the substrate at a second level different from the first level. Each of the first and second cell blocks includes a word line extending in a first direction that is parallel to a top surface of the substrate, a word line contact connected to a center point of the word line, a bit line extending in a second direction that is parallel to the top surface of the substrate and intersects the first direction, a bit line contact connected to a center point of the bit line, and a memory cell between the word and bit lines. The second cell block is offset from the first cell block in at least one of the first and second directions.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: August 22, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-hyun Jeong, Jae-hyun Park
  • Patent number: 11737283
    Abstract: To compensate switching of a dielectric component of a non-linear polar material based capacitor, an explicit dielectric capacitor is added to a memory bit-cell and controlled by a signal opposite to the signal driven on a plate-line.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: August 22, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Rajeev Kumar Dokania, Noriyuki Sato, Tanay Gosavi, Amrita Mathuriya, Sasikanth Manipatruni
  • Patent number: 11729995
    Abstract: To compensate switching of a dielectric component of a non-linear polar material based capacitor, an explicit dielectric capacitor is added to a memory bit-cell and controlled by a signal opposite to the signal driven on a plate-line.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: August 15, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Rajeev Kumar Dokania, Noriyuki Sato, Tanay Gosavi, Amrita Mathuriya, Sasikanth Manipatruni
  • Patent number: 11729991
    Abstract: To compensate switching of a dielectric component of a non-linear polar material based capacitor, an explicit dielectric capacitor is added to a memory bit-cell and controlled by a signal opposite to the signal driven on a plate-line.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: August 15, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Rajeev Kumar Dokania, Noriyuki Sato, Tanay Gosavi, Amrita Mathuriya, Sasikanth Manipatruni
  • Patent number: 11729996
    Abstract: An embedded eMRAM device for eFlash replacement including an MTJ pillar located between a top electrode and a bottom electrode for forming an MRAM array. The bottom electrode is disposed above a substrate and surrounded by a first dielectric spacer, while the top electrode is disposed above the MTJ pillar and surrounded by a second dielectric spacer. A bottom metal plate is disposed on opposing sides of the bottom electrode between first and second dielectric layers and is electrically separated from the bottom electrode by the first dielectric spacer. A top metal plate is disposed on opposing sides of the top electrode between third and fourth dielectric layers and is electrically separated from the top electrode by the second dielectric spacer. A bias voltage applied to the top metal plate and the bottom metal plate generates an external electric field on the MTJ pillar for creating a VCMA effect.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: August 15, 2023
    Assignee: International Business Machines Corporation
    Inventors: Heng Wu, Ruilong Xie, Julien Frougier, Bruce B. Doris
  • Patent number: 11723296
    Abstract: A system and method for storing information in a quantum computer using a quantum storage ring. The method comprises cooling ions in the quantum storage ring to a low temperature; and binding the ions into a lattice structure, forming an ion Coulomb crystal.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: August 8, 2023
    Assignee: U.S. Department of Energy
    Inventors: Kevin Brown, Thomas Roser
  • Patent number: 11723208
    Abstract: A memory device comprises a peripheral circuit region including a first substrate and circuit elements on the first substrate, the circuit elements including a row decoder, and a memory cell region including a cell array region and a cell contact region, wherein the cell array region includes wordlines, stacked on a second substrate on the peripheral circuit region, and channel structures extending in a direction perpendicular to an upper surface of the second substrate and penetrating the wordlines, wherein the cell contact region includes cell contacts connected to the wordlines and on both sides of the cell array region in a first direction parallel to the upper surface of the second substrate, the cell contacts including a first cell contact region and a second cell contact region, the first and second cell contact regions having different lengths to each other in the first direction, wherein each of the first and second cell contact regions includes first pads having different lengths than each other in
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyunghwa Yun, Pansuk Kwak, Chanho Kim, Dongku Kang
  • Patent number: 11723214
    Abstract: An electronic device including a semiconductor memory is provided. The semiconductor memory includes a plurality of first lines extending in a first direction; a plurality of second lines disposed over the first lines, the second lines extending in a second direction crossing the first direction; a plurality of memory cells disposed between the first lines and the second lines at intersection regions of the first lines and the second lines; first liner layer patterns positioned on both sidewalls of each memory cell in the second direction; a first insulating layer pattern positioned between adjacent first liner layer patterns in the second direction; second liner layer patterns positioned on both sidewalls of each memory cell in the first direction; a second insulating layer pattern positioned between adjacent second liner layer patterns in the first direction; and a third insulating layer positioned between adjacent second liner layer patterns in the second direction.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: August 8, 2023
    Assignee: SK hynix Inc.
    Inventor: Hwang Yeon Kim
  • Patent number: 11715529
    Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: August 1, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi