Patents Examined by Son L. Mai
  • 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: 11869571
    Abstract: A memory device including: a plurality of pins for receiving control signals from an external device; a first bank having first memory cells, wherein the first bank is activated in a first operation mode and a second operation mode; a second bank having second memory cells, wherein the second bank is deactivated in the first operation mode and activated in the second operation mode; a processing unit configured to perform an operation on first data, output from the first memory cells, and second data, output from the second memory cells, in the second operation mode; and a processing-in-memory (PIM) mode controller configured to select mode information, indicating one of the first operation mode and the second operation mode, in response to the control signals and to control at least one memory parameter, at least one mode register set (MRS) value, or a refresh mode according to the mode information.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youngcheon Kwon, Jaeyoun Youn, Namsung Kim, Kyomin Sohn, Seongil O, Sukhan Lee
  • 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: 11869605
    Abstract: Systems and methods are disclosed including a memory device and a processing device operatively coupled to the memory device. The processing device can perform operations including performing a read operation on a block of the memory device by applying a read reference voltage to a selected wordline of the block and applying a pass-through voltage having a first value to a plurality of unselected wordlines of the block; detecting a read error in response to performing the read operation; and setting the pass-through voltage to a second value, wherein the second value is greater than the first value.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: January 9, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Kishore Kumar Muchherla, Mustafa N. Kaynak, Sampath K Ratnam, Peter Feeley, Sivagnanam Parthasarathy
  • Patent number: 11869569
    Abstract: A semiconductor memory device includes a mammy cell array including a plurality of memory cells and a control logic circuit configured to control the semiconductor memory device. The control logic circuit includes a mode register and a remaining lifetime calculating device configured to count usage metrics based on one or more of the following: a number of clock signals received from a memory controller, an amount of data transmitted or received to or from the memory controller, and/or a number of commands received from the memory controller. The remaining lifetime calculating device generates a remaining lifetime code representing a remaining lifetime of the semiconductor memory device based on the usage metrics, and stores the remaining lifetime code in the mode register.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Kyu Kang, Jieun Shin, Hocheol Bang, Haewon Lee
  • Patent number: 11862292
    Abstract: Disclosed herein are related to operating a memory system including memory banks and buffers. Each buffer may perform a write process to write data to a corresponding memory bank. In one aspect, the memory system includes a buffer controller including a queue register, a first pointer register, a second pointer register, and a queue controller. In one aspect, the queue register includes entries, where each entry may store an address of a corresponding memory bank. The first pointer register may indicate a first entry storing an address of a memory bank, on which the write process is predicted to be completed next. The second pointer register may indicate a second entry to be updated. The queue controller may configure the queue register according to the first pointer register and the second pointer register, and configure one or more buffers to perform the write process, according to the entries.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: January 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventor: Shih-LIen Linus Lu
  • Patent number: 11862294
    Abstract: A memory subsystem architecture that includes clock signal routing architecture to split a clock signal to support two register clock driver (RCD) devices. The clock signal routing architecture may include clock signal splitter circuit that enables contemporaneous provision of a common clock signal to the two register clock driver devices. The clock signal splitter circuit may have three legs: a first leg to receive the clock signal from an external bus, and two similar legs to route the clock signal to the RCD devices.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: January 2, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Matthew B. Leslie, Timothy M. Hollis, Roy E. Greeff
  • Patent number: 11862256
    Abstract: A non-volatile storage apparatus that comprises a plurality of planes of non-volatile memory cells is capable of concurrently programming memory cells in multiple planes. In order to screen for failure of the programming process in a subset of planes, the completion of programming of a fastest plane to a particular data state is used as a trigger to test for program failure of other planes to a different data state. In one embodiment, the test for program failure of other planes to the different data state comprises determining if the memory cells of the other planes that are targeted for programming to the different data state have successfully completed verification of programming for the different data state. The programming process is stopped for those planes that fail the test.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 2, 2024
    Assignee: SanDisk Technologies LLC
    Inventors: Shota Murai, Hideto Tomiie
  • Patent number: 11854657
    Abstract: A memory system includes at least one memory die and a controller coupled to the at least one memory die via a data path. The at least one memory die includes plural memory planes and a register storing operation statuses and operation results regarding the respective memory planes. The controller transfers a first status check command to the at least one memory die and receives a first response including the operation statuses and the operation results regarding the respective memory planes.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: December 26, 2023
    Assignee: SK hynix Inc.
    Inventors: Tae Hee You, Beom Ju Shin
  • Patent number: 11854626
    Abstract: A memory device including a plurality of memory cells, a peripheral circuit, and a control logic. The peripheral circuit performs a first read operation using a plurality of read voltages on selected memory cells. The control logic controls the peripheral circuit to perform a cell counting operation, adjust remaining read voltages among the plurality of read voltages based on a read offset table and a cell count which is a result of the cell counting operation, and perform a first read operation on the selected memory cell with the remaining read voltages, in the first read operation. The control logic performs a read data output operation of a second read operation performed before the first read operation and the cell counting operation corresponding to the first read operation in parallel among a plurality of successively performed read operations.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: December 26, 2023
    Assignee: SK hynix Inc.
    Inventor: Kang Woo Park
  • Patent number: 11854587
    Abstract: Disclosed herein are related to reducing power consumption of a memory device when transitioning from a sleep state to an operational state. In one aspect, the memory device includes a memory cell to store data. In one aspect, the memory device includes an output driver configured to: generate an output signal indicating the stored data, in response to a sleep tracking signal indicating that the memory cell is in the operational state, and generate the output signal having a predetermined voltage irrespective of the stored data, in response to the sleep tracking signal indicating that the memory cell is in the sleep state. In one aspect, the sleep tracking signal is delayed from a sleep control signal causing the memory cell to operate in the sleep state or the operational state.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: December 26, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Sanjeev Kumar Jain, Atul Katoch
  • Patent number: 11842766
    Abstract: Provided is an anti-fuse memory circuit. The anti-fuse memory circuit includes a memory array, a bit line (BL), and a word line (WL); an anti-fuse memory cell (FsBIn) electrically connected to the bit line (BL) through a first switch transistor (1Add); a second switch transistor (2Add) configured to connect the bit line (BL) to a transmission wire (100); a third switch transistor (3Add) configured to discharge the transmission wire (100); a reading module (102) including a first input end (+) connected to the transmission wire (100), a second input end (?) for receiving a reference voltage (VTRIP), and a sampling input end (C) for receiving a sampling signal (CLK); and a compensation module (101), connected to the third switch transistor (3Add) and configured to slow down a drop speed of a voltage at the transmission wire (100).
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: December 12, 2023
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Rumin Ji
  • Patent number: 11837315
    Abstract: Methods and devices related to transferring data between DRAM and SRAM. One method includes activating a first portion of a dynamic random access memory (DRAM), reading data from the first portion of the DRAM, latching the data from the first portion of the DRAM in one or more sense amplifiers, and writing the data from the one or more sense amplifiers to a first portion of a static random access memory (SRAM).
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: December 5, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Timothy P. Finkbeiner, Troy A. Manning, Troy D. Larsen, Glen E. Hush
  • Patent number: 11837273
    Abstract: A semiconductor device includes a first die connected to a first channel, the first die comprising a first memory chip; and a second die connected to a second channel, the second die comprising a second memory chip, the first and second channels being independent of each other and a storage capacity and a physical size of the second die being the same as those of the first die. The first and second dies are disposed in one package, and the package includes an interconnection circuit disposed between the first die and the second die to transfer signals between the first memory chip and the second memory chip.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaehyung Lee, JungSik Kim, Youngdae Lee, Duyeul Kim, Sungmin Yim, Kwangil Park, Chulsung Park
  • Patent number: 11823772
    Abstract: A memory system includes a memory device and a processing device operatively coupled with the memory device. The processing device perform operations comprising receiving an indication that a first memory access operation performed in response to a first memory access command is complete, wherein the first memory access operation is associated with a first CAM entry comprising an identifier of a second CAM entry; identifying the second CAM entry using the indicator, wherein the second CAM entry references a second memory access command; and issuing, to the memory device, the second memory access command.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: November 21, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Fangfang Zhu, Chih-Kuo Kao, Yueh-Hung Chen, Jiangli Zhu
  • Patent number: 11810640
    Abstract: A memory module including a memory array of storage transistors and a control circuit where the control circuit includes a memory interface for providing high bandwidth access to the memory array on serial data lanes. In some embodiments, the control circuit of a memory module includes multiple transceivers for connecting to serial data lanes. In one embodiment, the memory interface of a memory module configures some transceivers for host connection or for upstream connection to an upstream memory module and configures other transceivers for downstream connection to a downstream memory module. In other embodiments, a multi-module memory device is formed using multiple memory modules connected in a cascade configuration or in a star configuration to provide high bandwidth memory access to all memory locations of the multiple memory modules using the given number of serial data lanes of the host connection.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: November 7, 2023
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Dean Gans, Aran Ziv
  • Patent number: 11804254
    Abstract: Provided are a memory device and a method of refreshing the memory device regardless of a refresh rate multiplier for a temperature. In response to a refresh command at each base refresh rate (tREFi) based on a measured temperature, a memory device refreshes M memory cell rows at room temperature, refreshes 2M memory cell rows at a high temperature, and refreshes (½)M memory cell rows at a low temperature. The memory device refreshes (n+1)*M memory cell rows at a base refresh rate tREFi in response to a refresh command applied after n skipped base refresh rates, and refreshes (n+1)*M memory cell rows at a base refresh rate tREFi in response to a pulling-in refresh command.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: October 31, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Saemi Song, Dokyun Kim, Yeonkyu Choi, Doohee Hwang
  • Patent number: 11804280
    Abstract: A non-volatile memory device includes a memory cell array including a plurality of memory blocks that includes a plurality of memory cells connected to a plurality of word lines and a plurality of bit lines, a row decoder configured to select one among the plurality of memory blocks, based on an address, a voltage generator configured to apply word line voltages corresponding to selected word lines and unselected word lines, among the plurality of word lines, page buffers connected to the plurality of bit lines and configured to read data from a memory cell connected to one among the selected word lines of the selected one among the plurality of memory blocks, and a control logic configured to control the row decoder, the voltage generator, and the page buffers.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: October 31, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sehwan Park, Jinyoung Kim, Ilhan Park, Kyoman Kang, Sangwan Nam
  • Patent number: 11798634
    Abstract: Methods, systems, and devices for sequential voltage control for a memory device are described. A memory device may have various voltage sources that support different voltage levels used in various operations of the memory device. Voltage sources of a memory device may be disabled under some circumstances, such as when the memory device is idled, or operated in a low-power or powered-down mode, among other circumstances. In accordance with examples as disclosed herein, voltage sources of a memory device or memory die may be sequentially enabled or sequentially disabled. For example, voltage sources may be enabled in an order from voltage sources having relatively higher nominal voltages to voltage sources having relatively lower voltages, or disabled in an order from voltage sources having relatively lower nominal voltages to voltage sources having relatively higher voltages.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: October 24, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Ki-Jun Nam, Takamasa Suzuki, Yantao Ma, Yasushi Matsubara
  • Patent number: 11792999
    Abstract: Various embodiments of the present application are directed towards a bipolar selector having independently tunable threshold voltages, as well as a memory cell comprising the bipolar selector and a memory array comprising the memory cell. In some embodiments, the bipolar selector comprises a first unipolar selector and a second unipolar selector. The first and second unipolar selectors are electrically coupled in parallel with opposite orientations and may, for example, be diodes or some other suitable unipolar selectors. By placing the first and second unipolar selectors in parallel with opposite orientations, the first unipolar selector independently defines a first threshold voltage of the bipolar selector and the second unipolar selector independently defines a second threshold voltage of the bipolar selector. As a result, the first and second threshold voltages can be independently tuned by adjusting parameters of the first and second unipolar selectors.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: October 17, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng-Chih Lai, Chung-Te Lin, Min Cao, Randy Osborne