Patents Examined by Mohammed A Bashar
  • Patent number: 11955198
    Abstract: A lateral transfer path within an adjustable-width signaling interface of an integrated circuit component is formed by a chain of logic segments that may be intercoupled in different groups to effect the lateral data transfer required in different interface width configurations, avoiding the need for a dedicated transfer path per width configuration and thereby substantially reducing number of interconnects (and thus the area) required to implement the lateral transfer structure.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: April 9, 2024
    Assignee: Rambus Inc.
    Inventor: Frederick A. Ware
  • Patent number: 11955188
    Abstract: A semiconductor storage device of an embodiment includes a memory block, a resistance measurement circuit, and a control circuit. The memory block includes first to third control signal lines connected to gates of a first select gate transistor, a plurality of memory cell transistors, and a second select gate transistor. The resistance measurement circuit measures resistance of at least one control signal line among the first to third control signal lines. The control circuit performs erase, program, and read of data at the plurality of memory cell transistors included in the memory block. The control circuit determines, based on a measurement result of the resistance measurement by the resistance measurement circuit, whether to set a fail status to a result of erase verify that verifies the erase.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: April 9, 2024
    Assignee: Kioxia Corporation
    Inventors: Hideki Igarashi, Wataru Makino
  • Patent number: 11942171
    Abstract: An example method may be used to perform concurrent compensation in a memory array. The example method may include decoding a prime row address corresponding to a respective prime memory cell row of a first row section of a memory array mat to provide a prime section signal, and in response to a determination that the prime row address matches a defective prime row address, providing a redundant section signal corresponding to a respective redundant memory cell row of a second row section of the memory array mat. In response to the prime section signal, initiating a first threshold voltage compensation operation on first sensing circuitry coupled to the first row section; and in response to the redundant section signal indicating a defective prime row, initiating a second threshold voltage compensation operation on second sensing circuitry coupled to the second row section concurrent with the first threshold voltage compensation operation.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: March 26, 2024
    Assignee: Micron Technology, Inc.
    Inventor: Harish V. Gadamsetty
  • Patent number: 11935610
    Abstract: A memory device includes: a memory cell array comprising a plurality of memory cells, the plurality of memory cells comprising a plurality of data memory cells including a first data memory cell and a plurality of backup memory cells including a first backup memory cell; a storage storing an error table configured to record errors in the plurality of data memory cells, the error table including a plurality of error table entries, each error table entry corresponding to one of the plurality of data memory cell and having an address and a failure count; and a controller configured to replace the first data memory cell with the first backup memory cell based on the error table.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: March 19, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hiroki Noguchi, Ku-Feng Lin, Yih Wang
  • Patent number: 11929134
    Abstract: Implementations described herein relate to performing a memory built-in self-test and indicating a status of the memory built-in self-test. A memory device may read one or more bits, associated with a memory built-in self-test, that are stored in a mode register of the memory device. The memory device may identify, based on the one or more bits, that the memory built-in self-test is enabled. The memory device may set a DMI bit of the memory device to a first value and perform the memory built-in self-test based on identifying that the memory built-in self-test is enabled. The memory device may set the DMI bit of the memory device to a second value based on a completion of the memory built-in self-test.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: March 12, 2024
    Assignee: Micron Technology, Inc.
    Inventor: Scott E. Schaefer
  • Patent number: 11929716
    Abstract: The disclosure provides a Sense Amplifier (SA), a memory and a method for controlling the SA, and relates to the technical field of semiconductor memories. The SA includes: an amplifier module; an offset voltage storage unit electrically connected to the amplifier module and configured to store an offset voltage of the amplifier module in an offset elimination stage of the SA; and a load compensation unit electrically connected to the amplifier module and configured to compensate a difference between loads of the amplifier module in an amplification stage of the SA. The disclosure may improve an accuracy of reading data of the SA.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: March 12, 2024
    Assignees: ANHUI UNIVERSITY, CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Xiulong Wu, Li Zhao, Yangkuo Zhao, Jun He, Xin Li, Zhan Ying, Kanyu Cao, Wenjuan Lu, Chunyu Peng, Zhiting Lin, Junning Chen
  • Patent number: 11929108
    Abstract: Provided are a memory detection method, a computer device and a storage medium. The method includes: initializing all storage units in a storage unit array; determining a plurality of target wordlines, two adjacent target wordlines being provided with a plurality of interfering wordlines therebetween; turning on the target wordlines, and performing a write operation on storage units connected to the target wordlines; performing repeatedly turn-on and turn-off of the interfering wordlines for a plurality of times; and performing a read operation on the storage units connected to the target wordlines. A write operation is performed on the storage units connected to the interfering wordlines by means of forced current sinking.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: March 12, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Dong Liu, Xikun Chu, Tianhao Diwu
  • Patent number: 11901031
    Abstract: A memory device includes a fail test circuit configured to generate a fail flag indicating whether a failure was detected in a column line, on the basis of internal data outputted from the column line selected according to a column address, when performing a test, and control the fail flag to indicate that the failure was detected in the column line, on the basis of a fail control signal. The memory device also includes a repair information generation circuit configured to generate, from the column address, a repair column address for repairing the column line, on the basis of the fail flag.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: February 13, 2024
    Assignee: SK hynix Inc.
    Inventors: Yong Sun Kim, Mi Hyun Hwang
  • Patent number: 11901025
    Abstract: A semiconductor memory device includes a memory cell array including memory cell row, each of which includes volatile memory cells, a row hammer management circuit, a repair control circuit and a connection logic. The row hammer management circuit counts access addresses associated with the memory cell rows to store counting values, and determines a hammer address associated with least one of the memory cell rows, which is intensively accessed, based on the counting values. The repair control circuit includes repair controllers, each of which includes a defective address storage, and repairs a defective memory cell row among the memory cell rows. The connection logic connects first repair controllers, which are unused for storing defective addresses, among the plurality of repair controllers, to the row hammer management circuit. The row hammer management circuit uses the first repair controllers as a storage resource to store a portion of the access addresses.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: February 13, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seongjin Cho, Jungmin You
  • Patent number: 11894093
    Abstract: A memory device includes a first dynamic random access memory (DRAM) integrated circuit (IC) chip including first memory core circuitry, and first input/output (I/O) circuitry. A second DRAM IC chip is stacked vertically with the first DRAM IC chip. The second DRAM IC chip includes second memory core circuitry, and second I/O circuitry. Solely one of the first DRAM IC chip or the second DRAM IC chip includes a conductive path that electrically couples at least one of the first memory core circuitry or the second memory core circuitry to solely one of the first I/O circuitry or the second I/O circuitry, respectively.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: February 6, 2024
    Assignee: Rambus Inc.
    Inventor: Thomas Vogelsang
  • Patent number: 11894086
    Abstract: In some aspects of the present disclosure, a memory device is disclosed. In some aspects, the memory device includes a plurality of memory cells arranged in an array, an input/output (I/O) interface connected to the plurality of memory cells to output data signal from each memory cell, and a control circuit. In some embodiments, the control circuit includes a first clock generator to generate a first clock signal and a second clock signal according to an input clock signal and a chip enable (CE) signal and provide the first clock signal to the plurality of memory cells. In some embodiments, the control circuit includes a second clock generator to generate a third clock signal according to the input clock signal and a DFT (design for testability) enable signal. In some embodiments, the control circuit generates an output clock signal according to the second clock signal or the third clock signal.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: February 6, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jaspal Singh Shah, Atul Katoch
  • Patent number: 11887650
    Abstract: A semiconductor memory device having a flexible refresh skip area includes a memory cell array including a plurality of rows to store data, a row decoder connected to the memory cell array, a refresh area storage unit to store a beginning address and an end address of a memory area that is to be refreshed in which the memory area that is to be refreshed does not include a refresh skip area having a size is selectively and/or adaptively changed, and a refresh control circuit connected to the row decoder and the refresh area storage unit. The refresh control circuit controls a refresh operation for the area that is to be refreshed and not for the refresh skip area.
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: January 30, 2024
    Inventors: Uksong Kang, Hoiju Chung
  • Patent number: 11880607
    Abstract: A self-repair memory circuit includes a cell array, a controller, a row repair decoder, and a column repair decoder. The cell array includes rows and columns of memory cells. The controller receives an input indicating row repair or column repair, and a repair address shared by the row repair and the column repair of the cell array. The row repair decoder maps the repair address of a defective row to a redundant row of the cell array when the input indicates the row repair. The column repair decoder maps the repair address of a defective column to another column of the cell array when the input indicates the column repair.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: January 23, 2024
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Kim Soon Jway, Shu-Lin Lai, Yi-Ping Kuo
  • Patent number: 11875866
    Abstract: Memory programming methods and memory systems are described. One example memory programming method includes programming a plurality of main cells of a main memory and erasing a plurality of second main cells of the main memory. The memory programming method further includes first re-writing one-time programmed data within a plurality of first one-time programmed cells of a one-time programmed memory during the programming and second re-writing one-time programmed data within a plurality of second one-time programmed cells of a one-time programmed memory during the erasing. Additional method and apparatus are described.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: January 16, 2024
    Assignee: Micron Technology, Inc.
    Inventor: Takafumi Kunihiro
  • Patent number: 11869617
    Abstract: In some embodiments, a system comprises a static random access memory (SRAM) device and a controller. The SRAM device comprises a bit cell array comprising a plurality of bit cells arranged in a plurality of rows and a plurality of columns, each column operatively coupled to a pair of bit lines, wherein the plurality of columns is arranged as a plurality of column groups each comprising a plurality of local columns. The SRAM device further comprises a plurality of column decoders, each associated with a column group of the plurality of column groups. In some embodiments, the controller may be configured to read the local columns included in the column group by, for a given local column, sensing a voltage difference on a corresponding pair of bit lines, in a rearranged sequential order that is different from a physical sequential order of the plurality of local columns.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: January 9, 2024
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Huichu Liu, Edith Dallard, Daniel Henry Morris
  • Patent number: 11862276
    Abstract: The present application relates to the technical field of integrated circuits, and in particular, to a memory test method and a memory test apparatus. The memory test method includes: providing a to-be-tested memory, where the to-be-tested memory includes a plurality of memory cells; alternately writing a first write value and a second write value into a memory cell of the memory cells at a preset frequency; writing a test write value into the memory cell; judging whether a data read from the memory cell is the test write value, and determining that a capacitance-frequency characteristic of the memory cell is abnormal if the data is not the test write value. According to the present application, the capacitance-frequency characteristic of the to-be-tested memory is accurately tested, to improve the field of memory products.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: January 2, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Wei Huang, Chi-Shian Wu
  • Patent number: 11862277
    Abstract: A deterioration detection device includes a storage including a first current path and a second current path and configured such that a current is applied to the first current path and the second current path, a storage input control unit configured to compare an internal operating condition of a memory device with a target condition in a first operating mode and to select one of the first current path and the second current path of the storage based on a result of the comparison, and an output unit configured to output an output signal indicated deterioration, accumulated in one of the first current path and the second current path, in a second operating mode.
    Type: Grant
    Filed: May 21, 2022
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youngduk Lee, Hyunsung Lim
  • Patent number: 11862270
    Abstract: In certain aspects, a memory device includes an array of memory cells, an input/output (I/O) circuit, and control logic coupled to the I/O circuit. The array of memory cells includes a plurality of banks including a plurality of main banks and a redundant bank. The I/O circuit is coupled to each pair of adjacent banks of the plurality of banks and configured to direct a piece of data to or from either bank of each pair of adjacent banks. The control circuit is configured to select one bank of each pair of adjacent banks based on bank fail information indicative of a failed main bank of the plurality of main banks. The control circuit is further configured to control the I/O circuit to direct the piece of data to or from the selected bank of each pair of adjacent banks.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: January 2, 2024
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventor: Sangoh Lim
  • Patent number: 11862272
    Abstract: A local region to be repaired including the fail bit is determined. A preliminary repair LR circuit for repairing the local region to be repaired is determined (S210). A region level of the local region to be repaired is determined (S230) according to the number of available GR circuits other than any replacement GR circuit configured for replacing the preliminary repair LR circuit and the number of available LR circuits. It is controlled, according to the region level of the local region to be repaired, to repair the fail bit by the GR circuit or the LR circuit (S240).
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: January 2, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Yui-Lang Chen
  • Patent number: 11854639
    Abstract: Apparatuses and methods including a test circuit in a scribe region between chips are described. An example apparatus includes: a first semiconductor chip and a second semiconductor chip, adjacent to one another; a scribe region between the first and second semiconductor chips; test address pads in the scribe region; and an address decoder circuit in the scribe region. The test address pads receive address signals. The address decoder provides first signals responsive to the address signals from the test address pads.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: December 26, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Atsuko Otsuka, Takeshi Kaku, Soeparto Tandjoeng