Patents by Inventor Tingjun Xie

Tingjun Xie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12333154
    Abstract: A processing device in a memory sub-system performs a first media scan operation with respect to a plurality of memory pages addressable by the ordinary wordline, wherein each page of the plurality of memory pages is contained by a respective management unit, and responsive to determining that a value of a data state metric of a memory page of the plurality of memory page addressable by the ordinary wordline satisfies a specified condition, performs a first media management operation with respect to a management unit containing the memory page.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: June 17, 2025
    Assignee: Micron Technology, Inc.
    Inventors: Tingjun Xie, Yang Liu, Jiangli Zhu, Juane Li, Aaron Lee
  • Publication number: 20250147831
    Abstract: A processing device in a memory sub-system identifies a read error associated with a block and determines a charge loss value associated with the block. The processing device determines whether the charge loss value is greater than or equal to a charge loss threshold. Responsive to determining the charge loss value is greater than or equal to the charge loss threshold, the block is identified as a healthy block.
    Type: Application
    Filed: November 1, 2024
    Publication date: May 8, 2025
    Inventors: Fanqi Wu, Zhenlei Shen, Jiangli Zhu, Tingjun Xie
  • Publication number: 20250118364
    Abstract: A difference between a recorded time stamp for a first set of memory cells comprised by an open translation unit (TU) of memory cells and a current time stamp for the open TU is determined, wherein the first set of memory cells comprises a most recently programmed set of memory cells. It is determined, based on a current temperature for the open TU and the difference between the recorded time stamp and the current time stamp, that a second set of memory cells comprised by the open TU is in a coarse programming state. A programming operation is performed on the second set of memory cells using a reduced programming state verify level and a reduced programming state gate step size associated with the second set of memory cells.
    Type: Application
    Filed: December 19, 2024
    Publication date: April 10, 2025
    Inventors: Murong Lang, Zhenming Zhou, Jian Huang, Tingjun Xie, Jiangli Zhu, Nagendra Prasad Ganesh Rao, Sead Zildzic
  • Publication number: 20250104772
    Abstract: A method includes performing, over a time period, a quantity of write operations associated with a quad-level cell (QLC) memory block, determining the time period exceeds a threshold time, designating the QLC memory block as a bimodal, determining a voltage threshold level of a last successful read operation associated with the QLC memory block, and setting a read threshold level of at least a portion of the QLC memory block at the voltage threshold level of the last successful read operation.
    Type: Application
    Filed: December 6, 2024
    Publication date: March 27, 2025
    Inventors: Tingjun Xie, Murong Lang, Fangfang Zhu, Jiangli Zhu, Zhenming Zhou
  • Publication number: 20250087278
    Abstract: It is determined whether a write disturb capability associated with a first location of a memory device satisfies a threshold criterion. Responsive to determining that the write disturb capability associated with the first location of the memory device satisfies the threshold criterion, a plurality of memory units is remapped to a second location of the memory device, wherein a write disturb capability associated with the second location of the memory device does not satisfy the threshold criterion.
    Type: Application
    Filed: November 25, 2024
    Publication date: March 13, 2025
    Inventors: Tingjun Xie, Zhenming Zhou, Zhenlei Shen, Charles See Yeung Kwong
  • Publication number: 20250078939
    Abstract: An example memory sub-system includes a memory device and a processing device, operatively coupled to the memory device. The processing device is configured to initiate a scan operation on a plurality of block families of the memory device. Each of the plurality of block families is assigned to a voltage offset bin of a plurality of voltage offset bins. The processing device further determines that a number of scan operations to be performed in one scan interval is greater than a maximum number of scan operations to be performed in a scan interval. The processing device further determines based on the voltage offset bins of the plurality of block families and a time elapsed since execution of a previous scan operation of the plurality of block families, a scan priority of each of the plurality of block families, and schedules, based on the scan priority, a scan operation of one or more block families of the plurality of block families during one or more subsequent scan intervals.
    Type: Application
    Filed: July 12, 2024
    Publication date: March 6, 2025
    Inventors: Yang Liu, Steven Michael Kientz, Tingjun Xie, Aaron Lee, Jiangli Zhu, Wei Wang
  • Patent number: 12217794
    Abstract: A difference between a recorded time stamp for a first set of memory cells comprised by an open translation unit (TU) of memory cells and a current time stamp for the open TU is determined, wherein the first set of memory cells comprises a most recently programmed set of memory cells. It is determined, based on a current temperature for the open TU and the difference between the recorded time stamp and the current time stamp, that a second set of memory cells comprised by the open TU is in a coarse programming state. A programming operation is performed on the second set of memory cells using a reduced programming state verify level and a reduced programming state gate step size associated with the second set of memory cells.
    Type: Grant
    Filed: January 29, 2024
    Date of Patent: February 4, 2025
    Assignee: Micron Technology, Inc.
    Inventors: Murong Lang, Zhenming Zhou, Jian Huang, Tingjun Xie, Jiangli Zhu, Nagendra Prasad Ganesh Rao, Sead Zildzic
  • Patent number: 12210752
    Abstract: A request to perform a memory access operation on a plurality of memory cells of a memory device is received. In response to determining that the request is from a host, a first error recovery operation is performed, wherein the first error recovery operation is associated with a first plurality of demarcation voltages. In response to determining that the request is from a controller, a second error recovery operation is performed, wherein the second error recovery operation is associated with a second plurality of demarcation voltages, wherein the second plurality of demarcation voltages comprises a greater number of demarcation voltages than the first plurality of demarcation voltages.
    Type: Grant
    Filed: September 26, 2023
    Date of Patent: January 28, 2025
    Assignee: Micron Technology, Inc.
    Inventors: Zhongguang Xu, Jian Huang, Tingjun Xie, Murong Lang, Zhenming Zhou
  • Publication number: 20250022529
    Abstract: A processing device in a memory sub-system identifies a read error associated with a block and initiates a diagnostic memory access operation on the block. The processing device determines whether the diagnostic memory access operation was successfully performed on the block. Responsive to determining the diagnostic memory access operation was successfully performed on the block, the processing device initiates a diagnostic read operation on the block. The processing device determines whether the diagnostic read operation was successfully performed on the block. Responsive to determining the diagnostic read operation was successfully performed on the block, the processing device identifies the block as a healthy block.
    Type: Application
    Filed: June 20, 2024
    Publication date: January 16, 2025
    Inventors: Fanqi Wu, Kevin R. Brandt, Zhenlei Shen, Tingjun Xie, Yang Liu, Jiangli Zhu
  • Publication number: 20250006269
    Abstract: A processing device, operatively coupled with a memory device, receives a request to perform a programming operation on a first set of a block addressable by a first wordline of a first die of the memory device, wherein the first die comprises a plurality of decks of the memory device. The processing device identifies, based on a predefined usage type associated with the first die, a deck of the plurality of decks for performing the programming operation; and performing the programming operation on a second set of cells of the block addressable by the first wordline residing on the identified deck of the first die.
    Type: Application
    Filed: April 26, 2024
    Publication date: January 2, 2025
    Inventors: Yu-Chung Lien, Zhenming Zhou, Shyam Sunder Raghunathan, Tingjun Xie
  • Patent number: 12183406
    Abstract: It is determined whether a write disturb capability associated with a first location of a memory device satisfies a threshold criterion. Responsive to determining that the write disturb capability associated with the first location of the memory device satisfies the threshold criterion, a plurality of memory units is remapped to a second location of the memory device, wherein a write disturb capability associated with the second location of the memory device does not satisfy the threshold criterion.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: December 31, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Tingjun Xie, Zhenming Zhou, Zhenlei Shen, Charles See Yeung Kwong
  • Patent number: 12165709
    Abstract: A method includes performing, over a time period, a quantity of write operations associated with a quad-level cell (QLC) memory block, determining the time period exceeds a threshold time, designating the QLC memory block as a bimodal, determining a voltage threshold level of a last successful read operation associated with the QLC memory block, and setting a read threshold level of at least a portion of the QLC memory block at the voltage threshold level of the last successful read operation.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: December 10, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Tingjun Xie, Murong Lang, Fangfang Zhu, Jiangli Zhu, Zhenming Zhou
  • Publication number: 20240393969
    Abstract: A processing device in a memory sub-system determines a total power-off time of a memory sub-system and identifies a configurable power-off time threshold for the memory sub-system. The processing device determines whether the total power-off time satisfies a threshold criterion based on the configurable power-off time threshold, responsive to determining that the total power-off time satisfies the threshold criterion, causes the memory sub-system to enter a relaxed block retirement mode of operation.
    Type: Application
    Filed: May 13, 2024
    Publication date: November 28, 2024
    Inventors: Fanqi Wu, Kevin R. Brandt, Zhenlei Shen, Tingjun Xie, Yang Liu, Jiangli Zhu
  • Publication number: 20240312526
    Abstract: A processing device in a memory sub-system logically closes a block of a memory device to prevent additional program operations from being performed on the block. The processing device further causes one or more wordlines of the block to be programmed with padding data. The one or more wordlines are adjacent to a last wordline of the block programmed before the block was logically closed. In addition, the processing device causes a remaining set of wordlines of the block to be concurrently programmed to a single program state.
    Type: Application
    Filed: May 21, 2024
    Publication date: September 19, 2024
    Inventors: Zhongguang Xu, Tingjun Xie, Murong Lang
  • Patent number: 12050808
    Abstract: A request to write data at a memory device is received. Responsive to receiving the request to write the data at the memory device, a first random value and a second random value is determined. Responsive to determining that the first random value does not satisfy a first threshold criterion and the second random value does not satisfy a second threshold criterion, a first write operation mode is selected from a plurality of write operations modes, and a write operation to write the data at the memory device is performed in accordance with the first write operation mode.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: July 30, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Zhenlei Shen, Fangfang Zhu, Tingjun Xie, Jiangli Zhu
  • Patent number: 12045512
    Abstract: A processing device in a memory sub-system initiates read operations on each of a plurality of segments in a first region of the memory device during a first time interval, wherein at least a subset of the plurality of segments in the first region of the memory device are storing host data. The processing device further receives, as a result of at least one read operation, at least one data signal from a corresponding one of the plurality of segments in the first region of the memory device, and performs a signal calibration operation using the at least one data signal to synchronize one or more relevant signals with a reference clock signal used by the processing device.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: July 23, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Tingjun Xie, Zhenming Zhou, Zhenlei Shen, Chih-Kuo Kao
  • Publication number: 20240231985
    Abstract: In some implementations, a memory device may detect a first read failure associated with a page type and a memory section of the memory device. The memory device may perform multiple read recovery operations in a first order defined by a first sequence of read recovery operations. The memory device may identify a read recovery operation that results in successful recovery from the first read failure. The memory device may reorder the first sequence of read recovery operations to generate a second sequence of read recovery operations that prioritizes the read recovery operation. The memory device may detect a second read failure associated with the page type and the memory section. The memory device may perform one or more read recovery operations to recover from the second read failure in a second order defined by the second sequence of read recovery operations.
    Type: Application
    Filed: March 21, 2024
    Publication date: July 11, 2024
    Inventors: Naveen BOLISETTY, Tingjun XIE
  • Publication number: 20240231644
    Abstract: Methods, apparatuses and systems related to managing deck-specific read levels are described. The apparatus may include a memory array having the memory cells organized into two or more decks. The apparatus can determine a delay between programming the decks. The apparatus can derive and implement the deck-specific read levels by selectively adjusting a base read level with an offset level according to the delay and/or the targeted read location.
    Type: Application
    Filed: March 20, 2024
    Publication date: July 11, 2024
    Inventors: Murong Lang, Tingjun Xie, Fangfang Zhu, Zhenming Zhou, Jiangli Zhu
  • Patent number: 12027211
    Abstract: A processing device in a memory sub-system initiates a partial block handling protocol for a closed block of a memory device. The block includes a plurality of wordlines. The processing device further sends a first programming command to the memory device to program one or more wordlines of the block with first padding data. The one or more wordlines are adjacent to a last wordline of the block programmed before the block was closed. In addition, the processing device sends a second programming command to the memory device to concurrently program a remaining set of the plurality of wordlines of the block to a threshold voltage.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: July 2, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Zhongguang Xu, Tingjun Xie, Murong Lang
  • Patent number: 11994945
    Abstract: Disclosed is a system that comprises a memory device and a processing device, operatively coupled with the memory device, to perform operations that include, determining that a value of a write counter associated with the memory device satisfies a first threshold criterion, wherein the write counter is a global counter indicating a number of write operations to the memory device. The operations performed by the processing device further include determining that a set of failed bit count statistics corresponding to a plurality of codewords of a memory unit satisfies a second threshold criterion. The operations performed by the processing device further include, responsive to determining that the set of failed bit count statistics corresponding to the plurality of codewords of the memory unit satisfies the second threshold criterion, performing a write scrub operation on the memory unit.
    Type: Grant
    Filed: April 6, 2023
    Date of Patent: May 28, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Zhenming Zhou, Tingjun Xie, Charles See Yeung Kwong