Patents Examined by Ly D Pham
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Patent number: 12731631Abstract: Provided is a memory device including a chip select (CS) buffer that is configured to output a first internal chip selection signal, a command clock (CK) buffer that is configured to output an internal clock signal, a command/address (CA) buffer that that is configured to output a first internal command/address signal, a CA buffer controller configured to control on/off of the CA buffer based on the first internal chip selection signal, synchronize the first internal chip selection signal and the first internal command/address signal to the internal clock signal, and delay the phase of a second internal chip selection signal synchronized to the internal clock signal, and a command decoder configured to decode any one of the second internal chip selection signal, a phase-delayed third internal chip selection signal, and/or a second internal command/address signal synchronized with the internal clock signal.Type: GrantFiled: November 5, 2024Date of Patent: September 8, 2026Assignee: Samsung Electronics Co., Ltd.Inventors: Yunsoo Lee, Hundae Choi
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Patent number: 12731649Abstract: Provided are a column control circuit and a memory device. The column control circuit includes a delay control circuit and a control signal generation circuit. The delay control circuit receives a column selection start signal, and generates and outputs a column selection end signal. The column selection end signal has a first delay amount relative to the column selection start signal. The control signal generation circuit receives the column selection start signal, the column selection end signal, and a target bank group selection signal, and generates and outputs a target column selection start signal, a target column selection window signal, and a target column selection end signal. The target column selection window signal has a second delay amount relative to the column selection start signal, the second delay amount is less than or equal to the first delay amount.Type: GrantFiled: November 14, 2024Date of Patent: September 8, 2026Assignee: CXMT CORPORATIONInventor: Zijian Wang
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Patent number: 12731650Abstract: The memory device includes a memory block that has an array of memory cells that are arranged in a plurality of word lines. The memory device also has control circuitry that is configured to program the memory cells of a selected word line in at least one program loop. The at least one program loop includes a programming pulse and a verify operation. During the verify operation, the control circuitry is configured to apply a read pass voltage to a plurality of unselected word lines of the plurality of word lines. The read pass voltage is negative to make the memory cells of the unselected word lines conductive to holes.Type: GrantFiled: June 7, 2024Date of Patent: September 8, 2026Assignee: Sandisk Technologies, Inc.Inventors: Wei Cao, Jiahui Yuan, Xiang Yang
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Patent number: 12725651Abstract: A semiconductor memory device includes a data input/output (I/O) buffer, a data first-in/first-out (FIFO) circuit, an address comparing circuit. The data I/O buffer provides a memory cell array with write data. The data FIFO circuit includes plurality of data FIFO buffers which store read data that is read from the memory cell array in each of a plurality of read operations. The data FIFO circuit outputs data stored in one of the plurality of data FIFO buffers based on a plurality of sub matching signals. The address comparing circuit sequentially stores previous addresses accompanied by first commands designating the plurality of read operations and generates the plurality of sub matching signals based on a comparison of the previous addresses and a present address accompanied by a second command designating a present read operation.Type: GrantFiled: September 17, 2024Date of Patent: September 1, 2026Assignee: Samsung Electronics Co., Ltd.Inventors: Seunghan Kim, Gunhee Cho
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Patent number: 12718861Abstract: Various aspects relate to a memory cell arrangement including: bitlines; wordlines; platelines; capacitive memory cells, wherein each of the capacitive memory cells is connected to and selectively addressable by a corresponding bitline, a corresponding wordline, and a corresponding plateline; a control circuit configured to carry out a read-out operation to read a memory state of a capacitive memory cell, the read-out operation including: charging the corresponding bitline to a first characteristic voltage by applying a plateline voltage having a first plateline voltage value at the corresponding plateline and by applying a wordline voltage at the corresponding wordline; decreasing the plateline voltage from the first plateline voltage value to a second plateline voltage value to thereby discharge the corresponding bitline from the first characteristic voltage to a second characteristic voltage; and determining the memory state of the capacitive memory cell based on sensing the second characteristic voltage.Type: GrantFiled: September 11, 2024Date of Patent: August 25, 2026Assignee: Ferroelectric Memory GmbHInventor: Corrado Villa
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Patent number: 12712026Abstract: Provided is a memory device and a method of operating the same. The memory device includes a memory block including a plurality of memory cells, a source line driver configured to apply an erase voltage to a source line of the memory block during an erase operation, a page buffer group configured to apply the erase voltage to bit lines of the memory block during the erase operation, a voltage generating circuit configured to generate a select line voltage that is applied to a select line of the memory block during the erase operation, and control logic configured to control the source line driver, the page buffer group, and the voltage generating circuit to perform a suspend operation including suspending the erase operation in response to a suspend command.Type: GrantFiled: July 18, 2024Date of Patent: August 18, 2026Assignee: SK hynix Inc.Inventor: Jae Woong Kim
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Patent number: 12706138Abstract: The present disclosure provides a data read circuit and a storage device thereof. The data read circuit includes: a first data transmission path for transmitting first data; a second data transmission path for transmitting second data; a control circuit for receiving a control signal, a first selection signal, and a second selection signal, and outputting a first output signal and a second output signal; and an output circuit for outputting the first data and the second data based on the first output signal and the second output signal, where the output circuit transmits the first data to a third data transmission path before the second data or transmits the second data to a third data transmission path before the first data.Type: GrantFiled: October 22, 2024Date of Patent: August 11, 2026Assignee: CXMT CorporationInventor: Yaohua Lu
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Patent number: 12700868Abstract: A delay buffer unit and an operating method thereof, a computing device and an operating method thereof. The delay buffer unit includes a first-stage inverter, a second-stage inverter and a delay adjustment sub-unit, an input terminal of the first-stage inverter serves as an input terminal of the delay buffer unit; an input terminal of the second-stage inverter is connected with an output terminal of the first-stage inverter, and an output terminal of the second-stage inverter serves as an output terminal of the delay buffer unit; the delay adjustment sub-unit is connected between a first terminal of the first-stage inverter and a first operating voltage terminal, and the delay adjustment sub-unit includes a memristor and is configured to adjust a transmission delay of the first-stage inverter by controlling and using the memristor according to a first control signal.Type: GrantFiled: November 16, 2023Date of Patent: August 4, 2026Assignee: TSINGHUA UNIVERSITYInventors: Huaqiang Wu, Songtao Wei, Sining Pan, Dong Wu, Peng Yao, Lu Jie, Bin Gao, He Qian
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Patent number: 12700440Abstract: Systems, methods, and apparatuses for offset cancellation are described. A memory device may determine that a channel is in a state that interrupts an active termination of the channel and enable the calibration of a reference voltage (e.g., by the memory device). For example, a channel used for data communications with a second device (e.g., a controller) may initially be in a state of active termination. The memory device may determine that the channel has transitioned to another state that interrupts the active termination. While the channel is in the other state, the memory device may calibrate a reference voltage of a receiver by transmitting calibration signals on the channel and detecting an offset associated with a reference voltage. The memory device may use the detected offset and the reference voltage to identify signals transmitted to the memory device over the channel.Type: GrantFiled: June 6, 2024Date of Patent: August 4, 2026Inventors: Martin Brox, Wolfgang Anton Spirkl, Thomas Hein, Michael Dieter Richter, Peter Mayer
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Patent number: 12694916Abstract: A nonvolatile memory device includes a memory cell array configured to store first and second setting data, a page buffer circuit configured to store data of the memory cell array, and a control logic circuit. The control logic circuit is configured to control a sensing operation based on setting data stored in a setting buffer, perform first sensing of the first setting data stored in the memory cell array in a first sensing scheme, and store the sensed first setting data in the page buffer circuit, dump down the first setting data stored in the page buffer circuit into the setting buffer, and perform second sensing of the second setting data stored in the memory cell array in a second sensing scheme based on the first setting data dumped down into the setting buffer, and store the sensed second setting data in the page buffer circuit.Type: GrantFiled: September 5, 2024Date of Patent: July 28, 2026Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yo Han Lee, Sang Soo Park, Jung-Yun Yun, Jae-Yun Lee
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Patent number: 12688884Abstract: Described are memory modules that support different error detection and correction (EDC) schemes in both single- and multiple-module memory systems. The memory modules are width configurable and support the different EDC schemes for relatively wide and narrow module data widths. Data buffers on the modules support the half-width and full-width modes, and also support time-division-multiplexing to access additional memory components on each module in support of enhanced EDC.Type: GrantFiled: April 12, 2024Date of Patent: July 21, 2026Assignee: Rambus Inc.Inventors: Frederick A. Ware, John Eric Linstadt, Kenneth L. Wright
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Patent number: 12685232Abstract: A stacked semiconductor device includes at least one upper chip including first and second channels, each including first and second pseudo-channels; and first and second transfer control circuits respectively corresponding to the first and second channels, each configured to select one of the first and second pseudo-channels according to a channel designation signal designating one of the first and second pseudo-channels and a location information signal indicating a location of a corresponding channel, and transfer a data word between the selected pseudo-channel and a lower chip, wherein the first transfer control circuit transfers the data word in a first order in units of bytes, and the second transfer control circuit transfers the data word in a second order in units of bytes, opposite to the first order.Type: GrantFiled: June 19, 2024Date of Patent: July 14, 2026Assignee: SK hynix Inc.Inventors: Jae Hyung Park, Seung Geun Baek, Dong Uk Lee
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Patent number: 12676184Abstract: A memory device may include a reference voltage generator that generates a reference voltage, a voltage regulator that includes a plurality of driving blocks generating an internal voltage based on the reference voltage, and a power line that receives the internal voltage. At least one of the plurality of driving blocks may include a first unit driver that generates a first output current flowing through the power line based on the reference voltage and a change in the internal voltage, and a second unit driver that generates a second output current larger than the first output current flowing through the power line, based on the reference voltage and the change in the internal voltage. The first unit driver may generate the first output current faster than the second output current of the second unit driver.Type: GrantFiled: October 6, 2023Date of Patent: July 7, 2026Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seongjin Kim, Sang-Wan Nam, Sungho Moon
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Patent number: 12676198Abstract: In some implementations, a memory device may receive, from a host device, an erase command associated with erasing host data from a portion of a memory. The memory device may determine that the portion of the memory is associated with a reliability risk. The memory device may perform, based on determining that the portion of the memory is associated with the reliability risk, an alternative erase scheme to erase the host data from the portion of the memory, wherein during a first portion of the alternative erase scheme, a first voltage is applied to even word lines and a second voltage, that is different from the first voltage, is applied to odd word lines, and wherein during a second portion of the alternative erase scheme, a third voltage is applied to the even word lines and a fourth voltage is applied to the odd word lines.Type: GrantFiled: July 25, 2024Date of Patent: July 7, 2026Assignee: Micron Technology, Inc.Inventors: Yu-Chung Lien, Zhenming Zhou
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Patent number: 12677408Abstract: Provided is a memory semiconductor device in which a p-type semiconductor region is formed at an n+layer to which a bit line is connected, an n-type semiconductor layer to which a source line is connected is further formed, a first gate insulating layer and a first gate conductor layer to which a word line is connected exist, a second gate insulating layer and a second gate conductor layer to which a plate line is connected are provided, and a distance from the n+layer to the first gate conductor layer is smaller than a distance up to the second gate conductor layer. At the time of an erase operation, the plate line and the source line have a positive electric potential of the same polarity or have a voltage of 0 V.Type: GrantFiled: November 11, 2024Date of Patent: July 7, 2026Assignee: UNISANTIS ELECTRONICS SINGAPORE PTE. LTD.Inventors: Masakazu Kakumu, Iwao Kunishima, Koji Sakui, Nozomu Harada
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Patent number: 12676200Abstract: In some implementations, a memory device may receive, from a host device, a single-level cell (SLC) program command instructing host data to be written to one or more subblocks of memory. The memory device may determine whether a word line associated with a subblock, of the one or more subblocks, is associated with a reliability risk. The memory device may determine whether to perform a word line leakage monitoring procedure associated with a programming scheme to be used to program the subblock based on whether the word line is associated with the reliability risk.Type: GrantFiled: June 27, 2024Date of Patent: July 7, 2026Assignee: Micron Technology, Inc.Inventors: Yu-Chung Lien, Ekamdeep Singh, Zhenming Zhou
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Patent number: 12670954Abstract: Disclosed are a resistive random access memory (RRAM) structure and operating method. The RRAM structure includes RRAM cells arranged in columns and rows with all cells in a column connected between source and bit lines for the column and with all cells in a row connected to a word line for the row. The RRAM structure also includes peripheral circuitry enabling all memory operations to be performed without selective source line biasing. For example, during a reset operation, the following voltage conditions can be applied: a low positive voltage (e.g., of +1.8V) to the word line of the row containing the selected RRAM cell; a low negative voltage (e.g., of ?1.8V) to all other word lines; and another low negative voltage (e.g., of ?1.6V) to the bit line of the column containing the selected RRAM cell. All source lines and all other bit lines can be discharged to ground.Type: GrantFiled: June 5, 2024Date of Patent: June 30, 2026Assignee: GlobalFoundries U.S. Inc.Inventors: Siva Kumar Chinthu, Venkatesh Periyapatna Gopinath, Suresh Pasupula, Navneet K. Jain
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Patent number: 12670945Abstract: A value associated with a number of accesses of a word line and a length of said accesses may be stored on said word line. A timer may provide a periodic signal that increments a counter to update the value. The updated value may then be written back to the word line. In some examples, a memory device including the word lines may have a specification that prevents the word line from closing prior to writing the updated value to the word line.Type: GrantFiled: April 8, 2024Date of Patent: June 30, 2026Assignee: Micron Technology, Inc.Inventors: Yuan He, Yang Lu, Dong Pan, Kang-Yong Kim
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Patent number: 12665022Abstract: A memory device to determine a voltage window to read soft bit data. For example, in response to a read command, the memory device can read a group of memory cells at a plurality of test voltages to determine signal and noise characteristics, which can be used to determine an optimized read voltage for reading hard bit data and a voltage window between a first voltage and a second voltage for reading soft bit data. The soft bit data identifies exclusive or (XOR) of results read from the group of memory cells at the first voltage and at the second voltage respective. The memory device can provide a response to the read command based on the hard bit data and the soft bit data.Type: GrantFiled: January 4, 2024Date of Patent: June 23, 2026Assignee: Micron Technology, Inc.Inventors: James Fitzpatrick, Sivagnanam Parthasarathy, Patrick Robert Khayat, Abdelhakim S. Alhussien
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Patent number: 12658216Abstract: A stacked semiconductor device includes at least one upper chip including a plurality of channels each including first and second pseudo-channels; and a plurality of transfer control circuits respectively corresponding to the channels and each configured to output channel commands according to a channel designation signal designating one of the first and second pseudo-channels and a location information signal indicating a location of a corresponding channel of the channels, and transmit first and second data words between the corresponding channel and a lower chip according to the channel commands.Type: GrantFiled: June 18, 2024Date of Patent: June 16, 2026Assignee: SK hynix Inc.Inventors: Jae Hyung Park, Seung Geun Baek, Dong Uk Lee