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公开(公告)号:US20170169885A1
公开(公告)日:2017-06-15
申请号:US15444982
申请日:2017-02-28
Applicant: Micron Technology, Inc.
Inventor: Qiang Tang , Feng Pan , Ramin Ghodsi , Mark A. Helm
IPC: G11C11/56
CPC classification number: G11C11/5642 , G11C7/14 , G11C29/021 , G11C29/028 , G11C2029/0409
Abstract: Apparatuses and methods for threshold voltage (Vt) distribution determination are described. A number of apparatuses can include sense circuitry configured to determine a first current on a source line of an array of memory cells, the first current corresponding to a first quantity of memory cells of a group of memory cells that conducts in response to a first sensing voltage applied to an access line and determine a second current on the source line, the second current corresponding to a second quantity of memory cells of the group that conducts in response to a second sensing voltage applied to the access line. The number of apparatuses can include a controller configured to determine at least a portion of a Vt distribution corresponding to the group of memory cells based, at least in part, on the first current and the second current.
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公开(公告)号:US20170075613A1
公开(公告)日:2017-03-16
申请号:US15342287
申请日:2016-11-03
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Shafqat Ahmed , Khaled Hasnat , Pranav Kalavade , Krishna Parat , Aaron Yip , Mark A. Helm , Andrew Bicksler
IPC: G06F3/06 , G06F12/0846
CPC classification number: G06F3/0625 , G06F3/061 , G06F3/0653 , G06F3/0665 , G06F3/0688 , G06F3/0689 , G06F12/0804 , G06F12/0846 , G06F13/28 , G06F2212/2022 , G06F2212/224 , G06F2212/461 , G11C16/0483 , G11C16/24 , G11C16/26 , Y02D10/14
Abstract: In a memory device, odd bit lines of a flag memory cell array are connected with a short circuit to a dynamic data cache. Even bit lines of the flag memory cell array are disconnected from the dynamic data cache. When an even page of a main memory cell array is read, the odd flag memory cells, comprising flag data, are read at the same time so that it can be determined whether the odd page of the main memory cell array has been programmed. If the flag data indicates that the odd page has not been programmed, threshold voltage windows can be adjusted to determine the states of the sensed even memory cell page.
Abstract translation: 在存储器装置中,标志存储单元阵列的奇数位线与短路连接到动态数据高速缓存。 标记存储单元阵列的偶数位线与动态数据高速缓存断开连接。 当读取主存储单元阵列的偶数页时,同时读取包括标志数据的奇数标志存储单元,以便可以确定主存储单元阵列的奇数页是否已被编程。 如果标志数据指示奇数页未被编程,则可以调整阈值电压窗口以确定感测到的偶数存储单元页的状态。
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公开(公告)号:US09159736B2
公开(公告)日:2015-10-13
申请号:US14175901
申请日:2014-02-07
Applicant: Micron Technology, Inc.
Inventor: Luyen Vu , Mark A. Helm
IPC: H01L27/115 , H01L29/16 , H01L29/04
CPC classification number: H01L27/11582 , H01L27/11519 , H01L27/11524 , H01L27/11526 , H01L27/11556 , H01L27/11565 , H01L27/1157 , H01L27/11573 , H01L29/04 , H01L29/16
Abstract: Some embodiments include an apparatus having semiconductor pillars in a substantially hexagonally closest packed arrangement. The hexagonally closest packed arrangement includes a repeating pillar pattern which has at least portions of 7 different pillars. Each of the different pillars in a respective one of the repeating pillar patterns is capable of being electrically coupled to a different data line of a plurality of data lines. Some embodiments include an apparatus having semiconductor pillars in a substantially hexagonally closest packed arrangement. The hexagonally closest packed arrangement includes a repeating pillar pattern having at least portions of 7 different pillars. All 7 different pillars of a repeating pillar pattern are encompassed by a single drain-side select gate (SGD).
Abstract translation: 一些实施例包括具有基本上六边形最紧密堆积布置的半导体柱的装置。 六边形最紧密的包装布置包括具有7个不同支柱的至少部分的重复支柱图案。 重复柱图案中的相应一个中的每个不同的支柱能够电耦合到多条数据线的不同数据线。 一些实施例包括具有基本上六边形最紧密堆积布置的半导体柱的装置。 六边形最接近的包装布置包括具有7个不同柱的至少一部分的重复柱图形。 重复柱状图案的所有7个不同的柱由单个排水侧选择栅(SGD)包围。
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公开(公告)号:US12086466B2
公开(公告)日:2024-09-10
申请号:US18116526
申请日:2023-03-02
Applicant: Micron Technology, Inc.
Inventor: Mark A. Helm
CPC classification number: G06F3/0659 , G06F3/0611 , G06F3/0653 , G06F3/0673
Abstract: Systems and methods are disclosed including a memory device and a processing device, operatively coupled with the memory device, to perform operations including programming first data to a set of memory cells of a first wordline using a first number of bits per memory cell. Responsive to receiving second data to program to the set of memory cells of the first wordline, the operations further include determining an error rate associated with a second wordline adjacent to the first wordline. Responsive to determining that the error rate satisfies a threshold criterion, the operations further include selecting a second number of bits per memory cell to program the second data to the first wordline and reprograming, using the second number of bits per memory cell, the first wordline storing the first data by programming second data to the set of memory cells while maintaining the first data.
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公开(公告)号:US11776629B2
公开(公告)日:2023-10-03
申请号:US16995517
申请日:2020-08-17
Applicant: Micron Technology, Inc.
Inventor: Niccolo' Righetti , Kishore K. Muchherla , Jeffrey S. McNeil, Jr. , Akira Goda , Todd A. Marquart , Mark A. Helm , Gil Golov , Jeremy Binfet , Carmine Miccoli , Giuseppina Puzzilli
Abstract: A method includes during a first portion of a service life of a memory device, programming at least one memory cell of the memory device to a first threshold voltage corresponding to a desired data state. The method can include during a second portion of the service life of the memory device subsequent to the first portion of the service life of the memory device, programming at least one memory cell of the memory device to a second threshold voltage corresponding to the desired data state. The second threshold voltage can be different than the first threshold voltage.
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公开(公告)号:US11500791B2
公开(公告)日:2022-11-15
申请号:US17117933
申请日:2020-12-10
Applicant: Micron Technology, Inc.
Inventor: Chulbum Kim , Mark A. Helm , Yoav Weinberg
Abstract: Methods, systems, and devices for status check using chip enable pin are described. An apparatus may include a memory device, a pin coupled with the memory device, and a driver coupled with the pin and configured to bias the pin to a first a voltage or a second voltage based on a status of the memory device. The status may indicate, for example, whether the memory device is available to receive a command. The driver may bias the pin to a first voltage based on a first status of the memory device indicating that the memory device is busy. Additionally, or alternatively, the driver may bias the pin to a second voltage based on a second status of the memory device indicating that the memory device is available to receive the command. In some cases, the pin may be an example of a chip enable pin.
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公开(公告)号:US20210200461A1
公开(公告)日:2021-07-01
申请号:US17079048
申请日:2020-10-23
Applicant: Micron Technology, Inc.
Inventor: Kishore Kumar Muchherla , Mark A. Helm , Giuseppina Puzzilli , Peter Feeley , Yifen Liu , Violante Moschiano , Akira Goda , Sampath K. Ratnam
IPC: G06F3/06
Abstract: An example memory sub-system comprises: a memory device; and a processing device, operatively coupled with the memory device. The processing device is configured to: receive a first host data item; store the first host data item in a first page of a first logical unit of a memory device, wherein the first page is associated with a fault tolerant stripe; receive a second host data item; store the second host data item in a second page of the first logical unit of the memory device, wherein the second page is associated with the fault tolerant stripe, and wherein the second page is separated from the first page by one or more wordlines including a dummy wordline storing no host data; and store, in a third page of a second logical unit of the memory device, redundancy metadata associated with the fault tolerant stripe.
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公开(公告)号:US20180373451A1
公开(公告)日:2018-12-27
申请号:US16117348
申请日:2018-08-30
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Shafqat Ahmed , Khaled Hasnat , Pranav Kalavade , Krishna Parat , Aaron Yip , Mark A. Helm , Andrew Bicksler
IPC: G06F3/06 , G11C16/26 , G11C16/24 , G11C16/04 , G06F13/28 , G06F12/0846 , G06F12/0804
CPC classification number: G06F3/0625 , G06F3/061 , G06F3/0653 , G06F3/0665 , G06F3/0688 , G06F3/0689 , G06F12/0804 , G06F12/0846 , G06F13/28 , G06F2212/2022 , G06F2212/224 , G06F2212/461 , G11C16/0483 , G11C16/24 , G11C16/26 , Y02D10/14
Abstract: Methods for programming sense flags may include programming memory cells coupled to first data lines in a main memory array, and programming memory cells coupled to second data lines in the main memory array while programming memory cells coupled to data lines in a flag memory array with flag data indicative of the memory cells coupled to the second data lines being programmed. Methods for sensing flags may include performing a sense operation on memory cells coupled to first data lines of a main memory array and memory cells coupled to data lines of a flag memory array, and determining a program indication of memory cells coupled to second data lines of the main memory array from the sense operation performed on the memory cells coupled to the data lines of the flag memory array.
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公开(公告)号:US09947418B2
公开(公告)日:2018-04-17
申请号:US15096439
申请日:2016-04-12
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Mark A. Helm , Kalyan C. Kavalipurapu
CPC classification number: G11C16/3459 , G11C11/5628 , G11C16/0483 , G11C16/10
Abstract: Methods of operating a memory include generating a programming pulse for a programming operation having a plurality of steps prior to a program voltage level of the programming pulse, and generating a subsequent programming pulse for the programming operation having the plurality of steps prior to a program voltage level of the subsequent programming pulse, wherein a particular step of the plurality of steps of the programming pulse has a different magnitude than a corresponding step of the plurality of steps of the subsequent programming pulse.
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公开(公告)号:US20170294233A1
公开(公告)日:2017-10-12
申请号:US15096439
申请日:2016-04-12
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Mark A. Helm , Kalyan C. Kavalipurapu
CPC classification number: G11C16/3459 , G11C11/5628 , G11C16/0483 , G11C16/10
Abstract: Methods of operating a memory include generating a programming pulse for a programming operation having a plurality of steps prior to a program voltage level of the programming pulse, and generating a subsequent programming pulse for the programming operation having the plurality of steps prior to a program voltage level of the subsequent programming pulse, wherein a particular step of the plurality of steps of the programming pulse has a different magnitude than a corresponding step of the plurality of steps of the subsequent programming pulse.
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