Patents Examined by Anthan Tran
  • Patent number: 10916550
    Abstract: A memory structure and a system-on chip (SOC) device are provided. A memory structure according to the present disclosure includes a first static random access memory (SRAM) macro comprising first gate-all-around (GAA) transistors and a second SRAM macro comprising second GAA transistors. The first GAA transistors of the first SRAM macro each includes a first plurality of channel regions each having a first channel width (W1) and a first channel thickness (T1). The second GAA transistors of the second SRAM macro each comprises a second plurality of channel regions each having a second channel width (W2) and a second channel thickness (T2). W2/T2 is greater than W1/T1.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 9, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventor: Jhon Jhy Liaw
  • Patent number: 10916305
    Abstract: A circuit includes a memory array having a plurality of memory cells; a control logic circuit, coupled to the memory array, and configured to use a first voltage signal to cause a first memory cell of the plurality of memory cells to transition from a first resistance state to a second resistance state; a counter circuit, coupled to the control logic circuit, and configured to increment a count by one in response to the first memory cell's transition from the first to the second resistance state; and an encryption circuit, coupled to the counter circuit, configured to generate an encrypted value using an updated count provided by the counter circuit.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: February 9, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shih-Lien Linus Lu, Yu-Der Chih, Chung-Cheng Chou, Tong-Chern Ong
  • Patent number: 10903277
    Abstract: An integrated neuron circuit structure comprising at least one thin-film resistor, one Metal Insulator Metal capacitor and one Negative Differential Resistance device.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: January 26, 2021
    Assignee: HRL Laboratories, LLC
    Inventor: Wei L. Yi
  • Patent number: 10885954
    Abstract: A memory device includes a first write assist circuit providing a cell voltage or a write assist voltage to a first memory cell connected with a first bit line pair, a first write driver that provides write data to the first memory cell through the first bit line pair, a second write assist circuit that provides the cell voltage or the write assist voltage to a second memory cell connected with a second bit line pair, and a second write driver that provides write data to the second memory cell through the second bit line pair. One of the first and second write assist circuits provides the write assist voltage in response to a column selection signal for selecting one write driver, which provides write data, from among the first, and second write drivers, and the other thereof provides the cell voltage in response to the column selection signal.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 5, 2021
    Inventors: Sang-Yeop Baeck, Inhak Lee, SangShin Han, Tae-Hyung Kim, JaeSeung Choi, Sunghyun Park, Hyunsu Choi
  • Patent number: 10872655
    Abstract: Instant optical DRAM data erasure can be performed. In wafer level packaging (chip scale package) die is usually on top (flip-chip) and metal interconnections does not interfere with penetrating light during chip illumination. IR light penetrates through chip's thin epoxy on top and deeply into die. Light is absorbed in the die, near active layer, generating electron-hole pairs. Electron-hole pairs diffuse to chip active layer and generate discharging photocurrents in DRAM capacitors.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: December 22, 2020
    Inventor: Goran Krilic
  • Patent number: 10861522
    Abstract: Provided is a storage device that includes a magnetization fixed layer, an intermediate layer, and a storage layer. The magnetization fixed layer has magnetization in an orientation perpendicular to a film surface and a constant magnetization direction. The intermediate layer includes a non-magnetic body and is disposed on the magnetization fixed layer. The storage layer includes an outer circumferential portion and a center portion. The storage layer is disposed to face the magnetization fixed layer with the intermediate layer sandwiched therebetween, and is configured to have a variable magnetization direction. The outer circumferential portion has magnetization in an orientation perpendicular to a film surface, the center portion is formed by being surrounded by the outer circumferential portion and having magnetization inclined from the orientation perpendicular to the film surface.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: December 8, 2020
    Assignee: SONY CORPORATION
    Inventors: Hiroyuki Ohmori, Masanori Hosomi, Kazuhiro Bessho, Yutaka Higo, Kazutaka Yamane, Hiroyuki Uchida
  • Patent number: 10861552
    Abstract: Some embodiments include apparatus and methods having a string of memory cells, a conductive line and a bipolar junction transistor configured to selectively couple the string of memory cells to the conductive line. Other embodiments including additional apparatus and methods are described.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: December 8, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Paolo Tessariol, Roberto Gastaldi
  • Patent number: 10861541
    Abstract: Disclosed are methods, systems and devices for operation of non-volatile memory devices. In one aspect, a non-volatile memory device may be placed in any one of multiple memory states in a write operation by controlling a current and a voltage applied to terminals of the non-volatile memory device. For example, a write operation may apply a programming signal across terminals of non-volatile memory device having a particular current and a particular voltage for placing the non-volatile memory device in a particular memory state.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 8, 2020
    Assignee: ARM Ltd.
    Inventors: Bal S. Sandhu, Cezary Pietrzyk, George McNeil Lattimore
  • Patent number: 10854259
    Abstract: Some embodiments of the present disclosure relate to a memory device. The memory device includes an active current path including a magnetic tunnel junction (MTJ); and a reference current path including a reference resistance element. The reference resistance element has a resistance that differs from a resistance of the MTJ. An asynchronous, delay-sensing element has a first input coupled to the active current path and a second input coupled to the reference current path. The asynchronous, delay-sensing element is configured to sense a timing delay between a first rising or falling edge voltage on the active current path and a second rising or falling edge voltage on the reference current path. The asynchronous, delay-sensing element is further configured to determine a data state stored in the MTJ based on the timing delay.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: December 1, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jack Liu, Charles Chew-Yuen Young
  • Patent number: 10840444
    Abstract: A phase change memory apparatus comprises at least one heating layer; and at least one phase change layer comprising a vanadium dioxide layer, wherein each of the at least one phase change layer is set corresponding to each of the at least one heating layer, the at least one heating layer is configured to heat the at least one phase change layer.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: November 17, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ji-Wei Hou, Zhi-Quan Yuan, Kai Liu, Peng Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 10839930
    Abstract: A magnetic domain wall type analog memory element includes: a magnetization fixed layer in which magnetization is oriented in a first direction; a non-magnetic layer provided in one surface of the magnetization fixed layer; a magnetic domain wall drive layer including a first area in which magnetization is oriented in the first direction, a second area in which magnetization is oriented in a second direction opposite to the first direction, and a magnetic domain wall formed as an interface between the areas and provided to sandwich the non-magnetic layer with respect to the magnetization fixed layer; and a current controller configured to cause a current to flow between the magnetization fixed layer and the second area at the time of reading.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: November 17, 2020
    Assignee: TDK CORPORATION
    Inventor: Tomoyuki Sasaki
  • Patent number: 10811084
    Abstract: The present invention relates generally to the field of semiconductor memories and in particular to memory cells comprising a static random access memory (SRAM) bitcell (100). Leakage current in the read path is reduced by connecting a read access transistor terminal either to GND or VDD during read access or write access and idle state. The SRAM cell inverters may be asymmetrical in size. The memory may comprise various boost circuits to allow low voltage operation or application of distinguished supply voltages.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: October 20, 2020
    Assignee: XENERGIC AB
    Inventors: Babak Mohammadi, Joachim Neves Rodrigues
  • Patent number: 10811094
    Abstract: A memory device may include a memory cell array including a plurality of memory cells and a compensation resistor electrically connected to the memory cell array. The compensation resistor may generate a cell current compensating for a voltage drop generated in a parasitic resistor of a signal line connected to at least one memory cell of the plurality of memory cells. The compensation circuit may control a magnitude of resistance of a compensation resistor upon receiving an address corresponding to the memory cell. The compensation circuit may increase a magnitude of the cell current based on adjusting the magnitude of resistance of the compensation resistor to be substantially equal to a resistance value of the parasitic resistor.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: October 20, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Venkataramana Gangasani, Ji-hoon Lim
  • Patent number: 10797229
    Abstract: According to one embodiment, a magnetic memory device includes a conductive layer, first to fourth magnetic layers, first and second intermediate layers, and a controller. The conductive layer includes first, to fifth portions. The first magnetic layer is separated from the third portion. The second magnetic layer is provided between the third portion and the first magnetic layer. The first intermediate layer is provided between the first and second magnetic layers. The third magnetic layer is separated from the fourth portion. The fourth magnetic layer is provided between the fourth portion and the third magnetic layer. The second intermediate layer is provided between the third and fourth magnetic layers. The controller is electrically connected to the first and second portions. The controller implements a first operation of supplying a first current to the conductive layer, and a second operation of supplying a second current to the conductive layer.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: October 6, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Altansargai Buyandalai, Satoshi Shirotori, Yuichi Ohsawa, Hideyuki Sugiyama, Mariko Shimizu, Hiroaki Yoda, Tomoaki Inokuchi
  • Patent number: 10790002
    Abstract: A non-volatile data retention circuit includes a complementary latch configured to generate and store complementary non-volatile spin states corresponding to an input signal when in a write mode, and to concurrently generate a first charge current signal and a second charge current corresponding to the complementary non-volatile spin states when in read mode, and a differential amplifier coupled to the complementary latch and configured to generate an output signal based on the first and second charge current signals.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: September 29, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Titash Rakshit, Ryan Hatcher, Jorge A. Kittl
  • Patent number: 10783942
    Abstract: Examples of the present disclosure provide apparatuses and methods for performing a corner turn using a modified decode. An example apparatus can comprise an array of memory cell and decode circuitry coupled to the array and including logic configured to modify an address corresponding to at least one data element in association with performing a corner turn operation on the at least one data element. The logic can be configured to modify the address corresponding to the at least one data element on a per column select basis.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: September 22, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Graham Kirsch, Martin Steadman
  • Patent number: 10777253
    Abstract: A memory array comprises a data block comprising N serially connected cells. Each cell of the cells comprises a memory element storing a respective bit of the word, a charge adding unit and a switching logic. The last cell of the cells is further configured to receive a sequence of M bits. The memory array further comprises an output block serially connected to the data block. The output block comprises a result accumulation unit. The memory array is configured to operate in accordance with a 3-phase clocking scheme having a sequence of M groups of clock cycles associated with the respective sequence of M bits. The memory array is configured such that a successive and repetitive application of the three phases enables an application of a phase during each clock cycle of the M groups.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: September 15, 2020
    Assignee: International Business Machines Corporation
    Inventors: Riduan Khaddam-Aljameh, Manuel Le Gallo-Bourdeau, Abu Sebastian, Evangelos Stavros Eleftheriou, Pier Andrea Francese
  • Patent number: 10777234
    Abstract: An off-chip driver including a first driving circuit is provided. The first driving circuit is used to adjust a slew rate of the off-chip driver. The first driving circuit includes a first pre-driver, a switch string, and a first output stage. The first pre-driver receives a read signal and a first pre-driver control signal. The switch string is configured to perform a voltage division operation in cooperation with the first pre-driver on a power supply voltage according to the read signal, so as to generate a first output stage control signal. The first output stage generates a data signal according to the first output stage control signal.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: September 15, 2020
    Assignee: Winbond Electronics Corp.
    Inventor: Taihei Shido
  • Patent number: 10770148
    Abstract: An operation method of a nonvolatile memory device includes applying a program voltage to a selected word line and programming a selected memory cell connected to the selected word line; reading an adjacent memory cell connected to an adjacent word line of the selected word line; and verifying the selected memory cell by adjusting charge sharing between the selected memory cell and a sensing node, which is connected to the selected memory cell through a bit line.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: September 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Taeck Jung, So-Yeong Gwak, Sang-Wan Nam
  • Patent number: 10770125
    Abstract: Methods for sensing ferroelectric memory devices and apparatuses using the same have been disclosed. One such apparatus includes a ferroelectric memory cell coupled to a data line, a reference capacitance, and a common node coupled between the data line and the reference capacitance. A current mirror circuit is coupled to the data line and the reference capacitance. During a sense operation, the common node is configured to be at a fixed voltage and the current mirror circuit is configured to mirror displacement current from the reference capacitance to the ferroelectric memory cell.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: September 8, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Adam D. Johnson