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公开(公告)号:US20130201759A1
公开(公告)日:2013-08-08
申请号:US13796602
申请日:2013-03-12
Applicant: Micron Technology, Inc.
Inventor: Frankie F. Roohparvar , Vishal Sarin , Jung-Sheng Hoei
IPC: G11C16/10
CPC classification number: G11C16/10 , G11C11/5628 , G11C16/3418
Abstract: Memory devices adapted to receive and transmit analog data signals representative of bit patterns of two or more bits facilitate increases in data transfer rates relative to devices communicating data signals indicative of individual bits. Programming of such memory devices includes initially programming a cell with a coarse programming pulse to move its threshold voltage in a large step close to the programmed state. The neighboring cells are then programmed using coarse programming. The algorithm then returns to the initially programmed cells that are then programmed with one or more fine pulses that slowly move the threshold voltage in smaller steps to the final programmed state threshold voltage.
Abstract translation: 适于接收和发送表示两个或多个位的位模式的模拟数据信号的存储器件有助于相对于传送指示各个位的数据信号的器件的数据传输速率的增加。 这种存储器件的编程包括:用粗略的编程脉冲对单元进行初始编程,使其阈值电压以接近编程状态的大步进移动。 然后使用粗略编程对相邻单元进行编程。 然后,该算法返回到初始编程的单元,然后使用一个或多个精细脉冲编程,该精细脉冲以较小步长将阈值电压缓慢移动到最终编程状态阈值电压。
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公开(公告)号:US20220122665A1
公开(公告)日:2022-04-21
申请号:US17542562
申请日:2021-12-06
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Luca De Santis , Tommaso Vali , Kenneth J. Eldredge , Vishal Sarin
Abstract: Memory devices might include a plurality of memory cell pairs each configured to be programmed to store a digit of data; and control circuitry configured to cause the memory device to compare the stored digit of data of each memory cell pair to a received digit of data, determine whether a match condition or a no-match condition is indicated between the stored digit of data of each memory cell pair and the received digit of data, and deem a match condition to be met between the received digit of data and the stored digits of data of the plurality of memory cell pairs in response to a match condition being determined for a majority of memory cell pairs of the plurality of memory cell pairs.
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公开(公告)号:US09875799B1
公开(公告)日:2018-01-23
申请号:US14991007
申请日:2016-01-08
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Luca De Santis , Tommaso Vali , Kenneth J. Eldredge , Vishal Sarin
CPC classification number: G11C15/046 , G11C16/0483 , G11C16/10 , G11C29/52
Abstract: Memories having a plurality of cell pairs, where each cell pair of the plurality of cell pairs is programmed to store a same bit of data corresponding to a particular bit position of a pattern to be searched in a memory are useful in mitigating match errors, such as in a CAM (Content Addressable Memory) memory device.
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公开(公告)号:US09646683B2
公开(公告)日:2017-05-09
申请号:US14803918
申请日:2015-07-20
Applicant: Micron Technology, Inc.
Inventor: Violante Moschiano , Tommaso Vali , Giovanni Naso , Vishal Sarin , William Henry Radke , Theodore T. Pekny
CPC classification number: G11C11/5621 , G11C11/5628 , G11C11/5642 , G11C16/0483 , G11C16/24 , G11C16/26 , G11C16/3418 , G11C16/3427 , G11C2211/5641
Abstract: Threshold voltages in a charge storage memory are controlled by threshold voltage placement, such as to provide more reliable operation and to reduce the influence of factors such as neighboring charge storage elements and parasitic coupling. Pre-compensation or post-compensation of threshold voltage for neighboring programmed aggressor memory cells reduces the threshold voltage uncertainty in a flash memory system. Using a buffer having a data structure such as a lookup table provides for programmable threshold voltage distributions that enables the distribution of data states in a multi-level cell flash memory to be tailored, such as to provide more reliable operation. Additional apparatus, systems, and methods are provided.
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公开(公告)号:US09520183B2
公开(公告)日:2016-12-13
申请号:US14707684
申请日:2015-05-08
Applicant: Micron Technology, Inc.
Inventor: Violante Moschiano , Tommaso Vali , Giovanni Naso , Vishal Sarin , William Henry Radke , Theodore T. Pekny
CPC classification number: G11C11/5621 , G11C11/5628 , G11C11/5642 , G11C16/0483 , G11C16/24 , G11C16/26 , G11C16/3418 , G11C16/3427 , G11C2211/5641
Abstract: Threshold voltages in a charge storage memory are controlled by threshold voltage placement, such as to provide more reliable operation and to reduce the influence of factors such as neighboring charge storage elements and parasitic coupling. Pre-compensation or post-compensation of threshold voltage for neighboring programmed “aggressor” memory cells reduces the threshold voltage uncertainty in a flash memory system. Using a buffer having a data structure such as a lookup table provides for programmable threshold voltage distributions that enables the distribution of data states in a multi-level cell flash memory to be tailored, such as to provide more reliable operation.
Abstract translation: 电荷存储存储器中的阈值电压由阈值电压放置来控制,例如提供更可靠的操作并减少诸如相邻电荷存储元件和寄生耦合的因素的影响。 相邻编程的“侵略者”存储器单元的阈值电压的预补偿或后补偿降低了闪存系统中的阈值电压不确定性。 使用具有诸如查找表之类的数据结构的缓冲器提供了可编程的阈值电压分布,使得能够定制多级单元闪存中的数据状态的分布,例如提供更可靠的操作。
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公开(公告)号:US09236146B2
公开(公告)日:2016-01-12
申请号:US14263736
申请日:2014-04-28
Applicant: Micron Technology, Inc.
Inventor: Vishal Sarin , Aaron Yip , Tomoharu Tanaka
CPC classification number: G11C29/50004 , G11C11/5628 , G11C16/0483 , G11C16/3459 , G11C2029/5004 , G11C2211/5621
Abstract: Memory devices and methods of operating memory devices are shown. Configurations described include circuits to perform a single check between programming pulses to determine a threshold voltage with respect to desired benchmark voltages. In one example, the benchmark voltages are used to change a programming speed of selected memory cells.
Abstract translation: 显示了存储器件和操作存储器件的方法。 所描述的配置包括在编程脉冲之间执行单次检查以确定相对于期望的基准电压的阈值电压的电路。 在一个示例中,基准电压用于改变所选存储单元的编程速度。
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公开(公告)号:US20150355849A1
公开(公告)日:2015-12-10
申请号:US14827371
申请日:2015-08-17
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Jonathan Pabustan , Vishal Sarin , Dzung H. Nguyen
CPC classification number: G06F3/0613 , G06F3/0655 , G06F3/0679 , G11C16/08 , G11C16/10 , G11C16/26 , G11C16/32 , G11C16/3454 , G11C16/3459
Abstract: Methods for sensing, method for programming, memory devices, and memory systems are disclosed. In one such method for sensing, a counting circuit generates a count output and a translated count output. The count output is converted into a time varying voltage that biases a word line coupled to memory cells being sensed. Target data for each memory cell is stored in a data cache associated with that particular memory cell. When it is detected that a memory cell has turned on, the translated count output associated with the count output that is indicative of the voltage level that turned on the memory cell is compared to the target data. The comparison determines the state of the memory cell.
Abstract translation: 公开了感测方法,编程方法,存储器件和存储器系统。 在一种用于感测的方法中,计数电路产生计数输出和转换计数输出。 计数输出被转换成时变电压,该电压偏置耦合到被感测的存储器单元的字线。 每个存储器单元的目标数据被存储在与该特定存储器单元相关联的数据高速缓存器中。 当检测到存储器单元已经接通时,将与指示存储器单元接通的电压电平的计数输出相关联的转换计数输出与目标数据进行比较。 比较确定存储单元的状态。
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公开(公告)号:US20150262657A1
公开(公告)日:2015-09-17
申请号:US14725749
申请日:2015-05-29
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Vishal Sarin , Allahyar Vahidimowlavi
CPC classification number: G11C11/5628 , G11C16/0408 , G11C16/0458 , G11C16/10 , G11C16/3418 , G11C16/3427 , G11C2211/562 , G11C2211/5622 , G11C2211/5642 , G11C2211/5648
Abstract: Programming a memory in two parts to reduce cell disturb is disclosed. In at least one embodiment, data is programmed in two or more sequences of programming pulses with data requiring higher programming voltages programmed first. During each programming sequence, the data which is not being currently selected for programming is inhibited. Overlapping levels and/or voltage ranges can be used.
Abstract translation: 公开了两部分编程存储器以减少电池干扰。 在至少一个实施例中,数据以两个或更多个编程脉冲序列编程,其中首先编程需要更高编程电压的数据。 在每个编程序列期间,禁止当前未选择编程的数据。 可以使用重叠电平和/或电压范围。
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公开(公告)号:US20150243351A1
公开(公告)日:2015-08-27
申请号:US14707684
申请日:2015-05-08
Applicant: Micron Technology, Inc.
Inventor: Violante Moschiano , Tommaso Vali , Giovanni Naso , Vishal Sarin , William Henry Radke , Theodore T. Pekny
IPC: G11C11/56
CPC classification number: G11C11/5621 , G11C11/5628 , G11C11/5642 , G11C16/0483 , G11C16/24 , G11C16/26 , G11C16/3418 , G11C16/3427 , G11C2211/5641
Abstract: Threshold voltages in a charge storage memory are controlled by threshold voltage placement, such as to provide more reliable operation and to reduce the influence of factors such as neighboring charge storage elements and parasitic coupling. Pre-compensation or post-compensation of threshold voltage for neighboring programmed “aggressor” memory cells reduces the threshold voltage uncertainty in a flash memory system. Using a buffer having a data structure such as a lookup table provides for programmable threshold voltage distributions that enables the distribution of data states in a multi-level cell flash memory to be tailored, such as to provide more reliable operation.
Abstract translation: 电荷存储存储器中的阈值电压由阈值电压放置来控制,例如提供更可靠的操作并减少诸如相邻电荷存储元件和寄生耦合的因素的影响。 相邻编程的“侵略者”存储器单元的阈值电压的预补偿或后补偿降低了闪存系统中的阈值电压不确定性。 使用具有诸如查找表之类的数据结构的缓冲器提供了可编程的阈值电压分布,使得能够定制多级单元闪存中的数据状态的分布,例如提供更可靠的操作。
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公开(公告)号:US09093162B2
公开(公告)日:2015-07-28
申请号:US14046640
申请日:2013-10-04
Applicant: Micron Technology, Inc.
Inventor: Vishal Sarin , Jung Sheng Hoei , Frankie Roohparvar , Giulio-Giuseppe Marotta
CPC classification number: G11C16/12 , G11C7/16 , G11C11/5642 , G11C16/0483 , G11C16/28 , G11C2211/5621 , G11C2211/5634 , G11C2211/5642
Abstract: The present disclosure includes methods, devices, modules, and systems for operating memory cells. One method embodiment includes applying a ramping voltage to a control gate of a memory cell and to an analog-to-digital converter (ADC). The aforementioned embodiment of a method also includes detecting an output of the ADC at least partially in response to when the ramping voltage causes the memory cell to trip sense circuitry.
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