Patents Examined by Mushfique Siddique
  • Patent number: 11756605
    Abstract: A semiconductor device capable of decreasing a jitter component is provided. A first calibration circuit searches a second delay value of a data delay circuit while determining a delay value of a strobe delay circuit to be a first delay value that is larger than the minimum value and smaller than the maximum value. A second calibration circuit determines a first corrected delay value and a second corrected delay value by shifting both the first delay value and the second delay value by the same correction value in a direction toward the minimum value, and sets the first corrected delay value and the second corrected delay value to the strobe delay circuit and the data delay circuit, respectively.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: September 12, 2023
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Norihiro Saitou
  • Patent number: 11756636
    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 determining a value of a data state metric associated with data stored in a part of a block of the memory device; responsive to determining that the value of the data state metric satisfies a first threshold criterion, determining a first value reflecting a voltage distribution metric associated with at least the part of the block; determining a second value reflecting at least one of a deterioration slope indicative of a data deterioration rate associated with a first portion of the memory device or an error rate associated with a second portion of the memory device; feeding the first value and the second value to a neural network; and receiving, from the neural network, an instruction to perform a media management operation.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: September 12, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Vamsi Pavan Rayaprolu, Christopher M. Smitchger
  • Patent number: 11749321
    Abstract: Systems and method are provided for a memory circuit that includes a bit cell responsive to a bit line signal line and a bit line bar signal line configured to store a bit of data. A pre-charge circuit is configured to charge one of the bit line and bit line bar signal lines prior to a read operation, where the pre-charge circuit includes a first pre-charge component and a second pre-charge component, the first and second pre-charge components being individually controllable for charging the bit line and bit line bar signal lines.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 5, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Wei-Cheng Wu, Kao-Cheng Lin, Chih-Cheng Yu, Pei-Yuan Li, Chien-Chen Lin, Wei Min Chan, Yen-Huei Chen
  • Patent number: 11749331
    Abstract: Apparatuses, systems, and methods for refresh modes. A memory may need to perform targeted refresh operations to refresh the ‘victim’ word lines which are near to frequently accessed ‘aggressor’ word lines. To refresh the victims at a high enough rate, it may be desirable to refresh multiple victims as part of the same refresh operation. However, certain word lines (e.g., word lines in a same section or adjacent sections of the memory) cannot be refreshed together. The memory may have a section comparator, which may check stored aggressor addresses and may provide a signal if there are not two stored addresses which can be refreshed together. Based, in part, on the signal, the memory may activate one of several different refresh modes, which may control the types of refresh operation performed responsive to a refresh signal.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: September 5, 2023
    Inventors: Jun Wu, Yu Zhang, Dong Pan
  • Patent number: 11742016
    Abstract: A quadrature error correction circuit includes a duty cycle adjusting circuit, a phase interpolator, a phase detector, and a delay control circuit. The duty cycle adjusting circuit generates a first corrected clock signal and a second corrected clock signal whose skew and duty cycle error are concurrently adjusted by adjusting a delay of edges of a second clock signal and adjusting a delay of a falling edge of a first clock signal based on first through fourth control code sets. The phase interpolator generates a second delayed and selected clock signal by delaying a second selected clock signal selected from first through fourth adjusted clock signals. A phase detector detects a phase difference between a first selected clock signal and the second delayed and selected clock signal to generate an up/down signal. The delay control circuit generates the first through fourth control code sets based on the up/down signal.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hojun Yoon, Wonjoo Jung, Jaewoo Park, Youngchul Cho, Youngdon Choi, Junghwan Choi
  • Patent number: 11742018
    Abstract: A signal generator includes a first amplifier for outputting an amplified voltage in response to a reference voltage and a feedback voltage, a divider circuit for dividing the amplified voltage to generate a divided voltage and the feedback voltage, and a buffer group for outputting a common sensing signal in response to the amplified voltage and outputting a sensing signal in response to the divided voltage, and a memory device including the signal generator.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: August 29, 2023
    Assignee: SK hynix Inc.
    Inventor: Young Il Kim
  • Patent number: 11735250
    Abstract: A semiconductor memory device is provided to suppress occurrence of disturbance regardless of the position of the activated word line. The semiconductor memory device includes a plurality of word lines, a bit line, a plurality of memory cells connected to the bit line and one of the plurality of word lines, a sense amplifier connected to the bit line, and a control portion. The control portion is configured to control timing of activating the sense amplifier. When a position of an activated word line among the plurality of word lines is closer to the sense amplifier, the control portion controls the timing of activating the sense amplifier to be delayed more.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: August 22, 2023
    Assignee: WINBOND ELECTRONICS CORP.
    Inventor: Takahiko Sato
  • Patent number: 11735257
    Abstract: Disclosed is a memory structure with reference-free single-ended sensing. The structure includes an array of non-volatile memory (NVM) cells (e.g., resistance programmable NVM cells) and a sense circuit connected to the array via a data line and a column decoder. The sense circuit includes field effect transistors (FETs) connected in parallel between an output node and a switch and inverters connected between the data line and the gates of the FETs, respectively. To determine the logic value of a stored bit, the inverters are used to detect whether or not a voltage drop occurs on the data line within a predetermined period of time. Using redundant inverters to control redundant FETs connected to the output node increases the likelihood that the occurrence of the voltage drop will be detected and captured at the output node, even in the presence of process and/or thermal variations. Also disclosed is a sensing method.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: August 22, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Nishtha Gaul, Bipul C. Paul, Akhilesh R. Jaiswal
  • Patent number: 11733928
    Abstract: The present disclosure is directed to read sample offset most probable bit operation associated with a memory component. A processing device generates a first set of read data associated with a memory component, the first set of read data comprising a first sequence of bit values. The processing device generates a second set of read data associated with the memory component, the second set of read data comprising a second sequence of bit values. The processing device generates a third set of read data associated with the memory component, the third set of read data comprising a third sequence of bit values. A most probable bit operation is performed to compare the first sequence of bit values, the second sequence of bit values, and the third sequence of bit values to generate and store a most probable bit sequence.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: August 22, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Michael Sheperek, Bruce A. Liikanen
  • Patent number: 11727972
    Abstract: A memory device is disclosed. The memory device includes word lines, a tracking bit line and a word line driver. The word lines are configured to transmit word line signals to memory cells. The tracking bit line is coupled to a first plurality of tracking cells that are arranged in rows. The word line driver is coupled to the word lines and a control circuit that is coupled through the tracking bit line to the word lines. The word line driver is configured to control a falling edge of each of the word line signals, by receiving each corresponding tracking bit line signal of tracking bit line signals transmitted from the tracking bit line, based on a resistance of a length of the tracking bit line. The length is substantially distanced from each corresponding row of the rows to the control circuit. A method is also disclosed herein.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: August 15, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tsung-Hsien Huang, Wei-Jer Hsieh, Yu-Hao Hsu
  • Patent number: 11727981
    Abstract: Methods, systems, and devices for sense amplifier with digit line multiplexing are described. A method includes precharging an input and an output of an amplifier stage of a sense component to a first voltage based on a read operation associated with a memory cell. The method includes precharging a first side and a second side of a latch stage of the sense component to the first voltage based on precharging the output of the amplifier stage to the first voltage, the latch stage coupled with the amplifier stage. The method may also include coupling a second voltage from a digit line associated with the memory cell to the input of the amplifier stage, the amplifier stage generating a third voltage on the output based on coupling the second voltage to the input, and the latch stage latching a logic value associated with the memory cell based on the third voltage.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: August 15, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Eric Carman, Daniele Vimercati
  • Patent number: 11727979
    Abstract: Methods of operating a memory device are disclosed. A method may include asserting, at a semiconductor device, an internal signal in response to receipt of a command. The method may also include holding the internal signal in an asserted state for at least a predetermined time duration upon assertion of the internal signal. Further, the method may include generating an enable signal based on the internal signal and a clock signal. Associated devices and systems are also disclosed.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: August 15, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kallol Mazumder, Navya Sri Sreeram, William C. Waldrop, Vijayakrishna J. Vankayala
  • Patent number: 11721390
    Abstract: Voltages loaded onto the bit lines in a first CA section of a memory array can be latched by enabling the BLSA between the first section and a second section adjacent to the first section causing latched voltages to propagate to bit lines in the second section. Voltages propagated to the bit lines in the second section using the latches between the second section and a third section. Voltages can be propagated sequentially from section to subsequent adjacent section until a target location is reached. The scheme can be applied as a method of page-data write access in a memory chip, of which page data can be propagated sequentially from section to subsequent adjacent section until a target location is reached, and then, activating a word line in a section of the memory comprising the target location to write voltages to the memory cells at the target location.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: August 8, 2023
    Assignee: Piecemakers Technology, Inc.
    Inventors: Gyh-Bin Wang, Tah-Kang Joseph Ting, Ming-Hung Wang
  • Patent number: 11721387
    Abstract: Methods, systems, and devices for compensating for kickback noise are described. A regulator may include an input circuit, a bias circuit, and an enable circuit. The regulator may be configured so that the enable circuit is positioned between the input circuit and the bias circuit. A balance resistor may be included in a path between an input of the regulator and a gate of a bias transistor included in the bias transistor. A size of the balance resistor may be based on an amount of charge drawn by the bias transistor during an activation event. Dimensions of the bias transistor may be modified based on an amount of charge drawn by the bias transistor during an activation event.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: August 8, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Wei Lu Chu, Dong Pan
  • Patent number: 11705432
    Abstract: Systems, apparatuses, and methods using wire bonds and direct chip attachment (DCA) features in stacked die packages are described. A stacked die package includes a substrate and at least a first semiconductor die and a second semiconductor die that are vertically stacked above the substrate. An active surface of the first semiconductor die faces an upper surface of the substrate and the first semiconductor die is operably coupled to the substrate by direct chip attachment DCA features. A back side surface of the second semiconductor die faces a back side surface of the first semiconductor die. The second semiconductor die is operably coupled to the substrate by wire bonds extending between an active surface thereof and the upper surface of the substrate.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: July 18, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Hiroki Fujisawa, Raj K. Bansal, Shunji Kuwahara, Mitsuaki Katagiri, Satoshi Isa
  • Patent number: 11705186
    Abstract: An example apparatus includes a sense amplifier, a plurality of storage memory cells coupled to the sense amplifier via a first digit line, and a plurality of offset memory cells coupled to the sense amplifier via a second digit line. The plurality of storage memory cells and the plurality of offset memory cells can comprise an array of memory cells. Each of the storage memory cells and the offset memory cells can include a respective capacitor having a particular capacitance.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: July 18, 2023
    Assignee: Micron Technology, Inc.
    Inventor: Scott J. Derner
  • Patent number: 11699482
    Abstract: A compute cell for in-memory multiplication of a digital data input and a balanced ternary weight, and an in-memory computing device including an array of the compute cells, are provided. In one aspect, the compute cell includes a set of input connectors for receiving modulated input signals representative of a sign and a magnitude of the data input, and a memory unit configured to store the ternary weight. A logic unit connected to the set of input connectors and the memory unit receives the data input and the ternary weight. The logic unit selectively enables one of a plurality of conductive paths for supplying a partial charge to a read bit line during a compound duty cycle of the set of input signals as a function of the respective signs of data input and ternary weight, and disables each of the plurality of conductive paths if at least one of the ternary weight and data input have zero magnitude.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: July 11, 2023
    Assignee: IMEC vzw
    Inventors: Stefan Cosemans, Ioannis Papistas, Peter Debacker
  • Patent number: 11699480
    Abstract: A semiconductor memory device may include a core circuit including a plurality of memory cell arrays electrically connected between a plurality of row lines and a plurality of column lines, and a column path control circuit configured to generate a preliminary column pulse from a command signal irrelevant to a column address signal, to generate a main column pulse in response to an enable time point of the column address signal and an enable time point of the preliminary column pulse, and to enable an access target column line among the plurality of column lines.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: July 11, 2023
    Assignee: SK hynix Inc.
    Inventor: Ji Eun Kim
  • Patent number: 11699478
    Abstract: A semiconductor memory device includes a first semiconductor pillar having i first memory cells on a first side and i second memory cells on a second side, a second semiconductor pillar having i third memory cells on a third side and i fourth memory cells on a fourth side, i first word lines (i is an integer of 4 or more) connected to the i first memory cells and the i third memory cells, i second word lines connected to the i second memory cells and the i fourth memory, and a driver. In writing data to the k-th (k is smaller than i and greater than 1) first memory cell, the driver supplies the k-th first word line with a first voltage larger than a reference voltage, and supplies the k-th second word line with a second voltage smaller than the reference voltage.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: July 11, 2023
    Assignee: Kioxia Corporation
    Inventor: Yuki Inuzuka
  • Patent number: 11699481
    Abstract: A stacked memory device includes a plurality of lower word lines extending in a first direction, a bit line positioned over the plurality of the lower word lines and extending in a second direction intersecting with the first direction, and a plurality of upper word lines positioned over the bit line and extending in the first direction. The stacked memory device also includes a plurality of lower memory cells including a lower capacitor and a lower switching element between the lower word lines and the bit line. The stacked memory device further includes a plurality of upper memory cells including an upper capacitor and an upper switching element between the bit line and the upper word lines.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: July 11, 2023
    Assignee: SK hynix Inc.
    Inventor: Kee Teok Park