Micron Technology Incorporated

Lodestar Licensing Group LLC

Akira Goda

Kishore Kumar Muchherla

Eric N Lee

Huai-Yuan Tseng

Jonathan Scott Parry

James Fitzpatrick

Jeffrey S McNeil, Jr

Dave Scott Ebsen

Tomoharu Tanaka

Violante Moschiano

Dung Viet Nguyen

Sivagnanam Parthasarathy

Jung Sheng Hoei

Haitao Liu

Peter Sean Feeley

Ugo Russo

Niccolo' Righetti

Nicola Ciocchini

Animesh Roy Chowdhury

Kunal R Parekh

Mustafa Nazmi Kaynak

Kamal M Karda

Jiangli Zhu

Fangfang Zhu

Sanjay Subbarao

Giovanni Maria Paolucci

Lakshmi Kalpana Vakati

Vivek Shivhare

Gurtej S Sandhu

Sanh D Tang

Aaron S Yip

Patrick Robert Khayat

Koichi Kawai

Sundararajan Sankaranarayanan

David Scott Ebsen

Guangyu Huang

Litao Yang

Silvia Beltrami

Niccolo′ Righetti

Sead Zildzic, Jr

Yoshiaki Fukuzumi

Sampath K Ratnam

Krishna Kumar Parat

Mark Alan Helm

Ching-Huang Lu

Paolo Tessariol

Jun Fujiki

Yoshihiko Kamata

Michele Incarnati

Jeremy Binfet

Xiangyu Tang

Walter Di Francesco

Giuseppina Puzzilli

Umberto Siciliani

Daniel J Hubbard

Khaled Hasnat

Shafqat Ahmed

Yifen Liu

Paing Z Htet

Mojtaba Asadirad

Marc Aoulaiche

Junwyn A Lacsao

Jin Chen

Eric Nien-Heng Lee

Haibo Li

Safqat Ahmed

A victim management unit (MU) for performing a media management operation is identified. The victim MU stores valid data in a first memory device of a plurality of memory devices. A cached data item on a second memory device of the plurality of memory devices is identified. A valid-to-invalid ratio of the victim MU is compared to a threshold value. In view of comparison, it is determined whether to pad the cached data item with at least a subset of the valid data stored at the victim MU or dummy data. Based on the determination, the cached data item padded with one of at least a subset of the valid data stored at the victim MU or the dummy data is written to a target MU.

Padding cached data with valid data for memory flush commands

A memory device comprises an array of memory cells organized into a plurality of wordlines, and a processing device to perform processing operations that receive a program command specifying a memory unit and data comprising first received data, where the plurality of wordlines includes one or more first active data wordlines and a group of consecutive retired wordlines. The processing operations also program the specified data to the memory unit by programming the first received data to the one or more first active data wordlines, identifying a first retired boundary wordline that is in the group of consecutive retired wordlines and is adjacent to one of the first active data wordlines, generating a first data pattern comprising a first plurality of threshold voltage levels, and programming the first data pattern to the first retired boundary wordline.

Selectively programming retired wordlines of a memory device

A system includes a memory device including multiple memory cells and a processing device operatively coupled to the memory device. The processing device is to receive a first read command at a first time. The processing device is further to receive a second read command at a second time. The processing device is further to determine that the first read command and the second read command are directed to an at least partially same set of memory cells of the plurality of memory cells. The processing device is further to perform a media management operation with respect to the at least partially same set of memory cells.

Modified read counter incrementing scheme in a memory sub-system

A read is initiated with respect to a target cell. A pair of adjacent cells includes a first cell and a second cell each adjacent to the target cell. First cell state information is obtained for the first cell and second cell state information is obtained for the second cell. A state information bin is determined by applying a pre-defined operation to the first cell state information and the second cell state information of the respective pair of adjacent cells. The target cell is assigned to the state information bin. Each state information bin defines a read level offset for reading the target cell.

Corrective reads with improved recovery from data retention loss

An apparatus is provided, comprising a substrate with a frontside and a backside opposite the frontside; control circuitry disposed over the frontside of the substrate; a memory array disposed over and electrically coupled to the control circuitry; a through-silicon via (TSV) disposed under the memory array, the TSV extending through the substrate from the control circuitry to the backside of the substrate; and a bond pad disposed on the backside of the substrate and electrically coupled to the control circuitry via the TSV.

Memory devices with backside bond pads under a memory array

Exemplary methods, apparatuses, and systems include an adaptive pre-read manager for controlling pre-reads of the memory device. The adaptive pre-read manager receives a first set of data bits for programming to memory. The adaptive pre-read manager performing a first pass of programming including a first subset of data bits from the set of data bits. The adaptive pre-read manager compares a set of threshold operating differences to a set of differences between multiple operating conditions during the first pass of programming and current operating conditions. The adaptive pre-read manager performs an internal pre-read of the programmed first subset of data bits. The adaptive pre-read manager performs a second pass of programming using the internal pre-read and a second subset of data bits from the first set of data bits.

Adaptive pre-read management in multi-pass programming

Control logic in a memory device determines to initiate a string read operation on a first memory string of a plurality of memory strings in a block of a memory array, the block comprising a plurality of wordlines, wherein the first memory string is designated as a sacrificial string. The control logic further causes a read voltage to be applied to each of the plurality of wordlines concurrently and senses a level of current flowing through the sacrificial string while the read voltage is applied. In addition, the control logic identifies, based on the level of current flowing through the sacrificial string, whether a threshold level of read disturb has occurred on the block.

Sacrificial strings in a memory device to detect read disturb

A method includes receiving first data, determining a number of programming operations performed on a plurality of flash memory cells subsequent to a most recent erase operation performed on the plurality of flash memory cells, encoding the first data to provide a first write-once memory (WOM) encoded data, and storing the first WOM encoded data, based at least in part on the determined number of programming operations, within a number of the plurality of flash memory cells.

Write-once memory encoded data

A system can include a memory device and a processing device, operatively coupled with the memory device, to perform operations including reading a first copy of data stored in a first set of memory cells comprising a first memory cell, determining whether a threshold voltage of the first memory cell is within a first range of threshold voltages, responsive to determining that the threshold voltage of the first memory cell is within the first range of threshold voltages, reading a second copy of the data stored in a second set of memory cells comprising a second memory cell, determining whether a threshold voltage of the second memory cell is within a second range of threshold voltages, and responsive to determining that the threshold voltage of the second memory cell is outside the second range, using the second copy of the data.

Using duplicate data for improving error correction capability

A method includes causing a first set of memory cells, associated with a first wordline of a memory array, to be programmed with a first set of threshold voltage distributions; causing a second set of memory cells, associated with a second wordline adjacent to the first wordline, to be programmed with a second set of threshold voltage distributions; after programming the second set of cells, causing the first set of memory cells to be coarse programmed with an intermediate third set of threshold voltage distributions that is at least twice in number compared to the first set; and causing the first set of memory cells to be fine programmed with a final third set of threshold voltage distributions. At least some threshold voltage distributions of the final third set of threshold voltage distributions have wider read window margins than those of the intermediate third set of threshold voltage distributions.

Memory programming using consecutive coarse-fine programming operations of threshold voltage distributions

A memory device includes an array of memory cells and a controller configured to access the array of memory cells. The controller is further configured to program a first number of bits to a first memory cell of the array of memory cells and program a second number of bits to a second memory cell of the array of memory cells. The controller is further configured to following a period after programming the second number of bits to the second memory cell, merge at least a subset of the first number of bits stored in the first memory cell to the second number of bits stored in the second memory cell without erasing the second memory cell such that the second number of bits plus at least the subset of the first number of bits are stored in the second memory cell.

Memory device programming technique for increased bits per cell

Memories might include a controller configured to cause the memory to apply a first voltage level indicative of a data state of a memory cell of an array of memory cells to a control gate of a transistor, retain the first voltage level on the control gate of the transistor, connect a first source/drain of the transistor to a data line corresponding to the memory cell while applying a second voltage level to a second source/drain of the transistor and while retaining the first voltage level on the control gate of the transistor, and apply a programming pulse to a control gate of the memory cell while the data line is connected to the first source/drain of the transistor.

Memory for programming data states of memory cells

A transistor comprises a 2D material structure and a gate structure. The 2D material structure conformally extends on and between surfaces of dielectric fin structures extending in parallel in a first horizontal direction, and comprises a source region, a drain region, and a channel region positioned between the source region and the drain region in the first horizontal direction. The gate structure overlies the channel region of the 2D material structure and extends in a second horizontal direction orthogonal to the first horizontal direction. The gate structure is within horizontal boundaries of the channel region of the 2D material structure in the first horizontal direction. Microelectronic devices, memory devices, and electronic systems are also described.

String driver assemblies including two-dimensional materials, and related memory devices

A method includes causing a read operation to be initiated with respect to a set of target cells. For each target cell, a respective group of adjacent cells is adjacent to the target cell. The method further includes obtaining, for each group of adjacent cells, respective cell state information, assigning, based on the cell state information, each target cell of the set of target cells to a respective state information bin, and determining a set of calibrated read level offsets. Each state information bin is associated with a respective group of target cells of the set of target cells, and each calibrated read level offset of the set of calibrated read level offsets is associated with a respective state information bin of the set of state information bins.

Conditional valley tracking during corrective reads

Methods, apparatuses and systems related to maintaining stored data are described. The apparatus may be configured to refresh the stored data according to schedule that includes different delays between successive refresh operations.

Apparatus with non-linear delay variations for scheduling memory refresh operations and methods for operating the same

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Tokyo, Japan

Akira Goda