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公开(公告)号:US09614005B2
公开(公告)日:2017-04-04
申请号:US14477680
申请日:2014-09-04
Applicant: Micron Technology, Inc.
Inventor: Andrea Redaelli , Agostino Pirovano , Umberto M. Meotto
CPC classification number: H01L45/1286 , G11C13/0004 , G11C13/003 , G11C13/0069 , G11C13/04 , G11C2013/008 , G11C2213/56 , G11C2213/76 , H01L27/2436 , H01L27/2463 , H01L45/06 , H01L45/1233 , H01L45/126 , H01L45/141 , H01L45/144 , H01L45/1608
Abstract: Subject matter described pertains to methods, apparatuses, and circuits for programming a memory device.
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公开(公告)号:US09502650B2
公开(公告)日:2016-11-22
申请号:US14947455
申请日:2015-11-20
Applicant: Micron Technology, Inc.
Inventor: Andrea Redaelli , Agostino Pirovano
CPC classification number: H01L27/2409 , G11C13/00 , G11C13/0004 , G11C13/0014 , G11C13/0016 , G11C2213/72 , H01L27/2481 , H01L27/285 , H01L45/06 , H01L45/1233 , H01L45/1273 , H01L45/14 , H01L45/141 , H01L45/144 , H01L45/146 , H01L45/1608
Abstract: Embodiments include but are not limited to apparatuses and systems including memory having a memory cell including a variable resistance memory layer, and a selector switch in direct contact with the memory cell, and configured to facilitate access to the memory cell. Other embodiments may be described and claimed.
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公开(公告)号:US09356237B2
公开(公告)日:2016-05-31
申请号:US14738453
申请日:2015-06-12
Applicant: Micron Technology, Inc.
Inventor: Andrea Redaelli , Agostino Pirovano , Umberto Maria Meotto , Giorgio Servalli
CPC classification number: H01L45/06 , H01L23/5256 , H01L27/2445 , H01L27/2463 , H01L45/12 , H01L45/1226 , H01L45/1233 , H01L45/126 , H01L45/144 , H01L45/16 , H01L45/1675 , H01L45/1683
Abstract: A resistive random access memory array may be formed on the same substrate with a fuse array. The random access memory and the fuse array may use the same active material. For example, both the fuse array and the memory array may use a chalcogenide material as the active switching material. The main array may use a pattern of perpendicular sets of trench isolations and the fuse array may only use one set of parallel trench isolations. As a result, the fuse array may have a conductive line extending continuously between adjacent trench isolations. In some embodiments, this continuous line may reduce the resistance of the conductive path through the fuses.
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公开(公告)号:US20140110657A1
公开(公告)日:2014-04-24
申请号:US13658676
申请日:2012-10-23
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Andrea Redaelli , Agostino Pirovano
IPC: H01L45/00
CPC classification number: H01L45/06 , H01L27/2445 , H01L45/00 , H01L45/12 , H01L45/1233 , H01L45/1253 , H01L45/144
Abstract: Some embodiments include memory constructions having a plurality of bands between top and bottom electrically conductive materials. The bands include chalcogenide bands alternating with non-chalcogenide bands. In some embodiments, there may be least two of the chalcogenide bands and at least one of the non-chalcogenide bands. In some embodiments, the memory cells may be between a pair of electrodes; with one of the electrodes being configured as a lance, angled plate, container or beam. In some embodiments, the memory cells may be electrically coupled with select devices, such as, for example, diodes, field effect transistors or bipolar junction transistors.
Abstract translation: 一些实施例包括在顶部和底部导电材料之间具有多个带的记忆结构。 这些带包括与非硫属化物带交替的硫属化物带。 在一些实施方案中,可以存在至少两个硫族化物带和至少一个非硫族化物带。 在一些实施例中,存储器单元可以在一对电极之间; 其中一个电极被配置为喷枪,倾斜板,容器或梁。 在一些实施例中,存储器单元可以与诸如二极管,场效应晶体管或双极结型晶体管的选择器件电耦合。
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公开(公告)号:US20250061943A1
公开(公告)日:2025-02-20
申请号:US18814164
申请日:2024-08-23
Applicant: Micron Technology, Inc.
Inventor: Lorenzo Fratin , Fabio Pellizzer , Agostino Pirovano , Russell L. Meyer
IPC: G11C13/00 , H01L23/528
Abstract: Methods, systems, and devices for self-selecting memory with horizontal access lines are described. A memory array may include first and second access lines extending in different directions. For example, a first access line may extend in a first direction, and a second access line may extend in a second direction. At each intersection, a plurality of memory cells may exist, and each plurality of memory cells may be in contact with a self-selecting material. Further, a dielectric material may be positioned between a first plurality of memory cells and a second plurality of memory cells in at least one direction. each cell group (e.g., a first and second plurality of memory cells) may be in contact with one of the first access lines and second access lines, respectively.
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公开(公告)号:US12211538B2
公开(公告)日:2025-01-28
申请号:US18203877
申请日:2023-05-31
Applicant: Micron Technology, Inc.
Inventor: Giorgio Servalli , Marcello Mariani , Agostino Pirovano
Abstract: Methods, systems, and devices for techniques to manufacture ferroelectric memory devices are described. In some cases, a memory array may be manufactured using a self-aligned manufacturing technique. For example, a continuous layer of dielectric material may be formed over an assembly which includes an array of transistors coupling contacts on the surface of the assembly with a set of digit lines. In some cases, an array of cavities may be etched into the dielectric material, each cavity exposing a set of contacts. A set of bottom electrodes corresponding to the set of contacts may be formed on sidewalls in each cavity, for example by depositing a layer of electrode material and etching the electrode material using a variety of hard masks.
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公开(公告)号:US20240321347A1
公开(公告)日:2024-09-26
申请号:US18643126
申请日:2024-04-23
Applicant: Micron Technology, Inc.
Inventor: Mattia Robustelli , Fabio Pellizzer , Innocenzo Tortorelli , Agostino Pirovano
CPC classification number: G11C11/56 , G11C7/1051 , G11C7/1096
Abstract: Methods, systems, and devices for reading a multi-level memory cell are described. The memory cell may be configured to store three or more logic states. The memory device may apply a first read voltage to a memory cell to determine a logic state stored by the memory cell. The memory device may determine whether a first snapback event occurred and apply a second read voltage based on determining that the first snapback event failed to occur based on applying the first read voltage. The memory device may determine whether a second snapback event occurred and determine the logic state based on whether the first snapback event or the second snapback event occurred.
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公开(公告)号:US11817148B2
公开(公告)日:2023-11-14
申请号:US17685219
申请日:2022-03-02
Applicant: Micron Technology, Inc.
Inventor: Hernan A. Castro , Innocenzo Tortorelli , Agostino Pirovano , Fabio Pellizzer
CPC classification number: G11C13/0069 , G11C5/063 , G11C13/004 , G11C13/0007 , G11C13/0064 , G11C2013/009 , G11C2013/0073
Abstract: Techniques are provided for programming a self-selecting memory cell that stores a first logic state. To program the memory cell, a pulse having a first polarity may be applied to the cell, which may result in the memory cell having a reduced threshold voltage. During a duration in which the threshold voltage of the memory cell may be reduced (e.g., during a selection time), a second pulse having a second polarity (e.g., a different polarity) may be applied to the memory cell. Applying the second pulse to the memory cell may result in the memory cell storing a second logic state different than the first logic state.
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公开(公告)号:US11765912B2
公开(公告)日:2023-09-19
申请号:US17187213
申请日:2021-02-26
Applicant: Micron Technology, Inc.
Inventor: Agostino Pirovano , Andrea Redaelli , Fabio Pellizzer , Innocenzo Tortorelli
CPC classification number: H10B63/20 , H10B63/30 , H10B63/845 , H10B69/00 , H10N70/20 , H10N70/231 , H10N70/8828 , H10N70/8836
Abstract: In an example, a memory array may include a plurality of first dielectric materials and a plurality of stacks, where each respective first dielectric material and each respective stack alternate, and where each respective stack comprises a first conductive material and a storage material. A second conductive material may pass through the plurality of first dielectric materials and the plurality of stacks. Each respective stack may further include a second dielectric material between the first conductive material and the second conductive material.
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公开(公告)号:US20230262995A1
公开(公告)日:2023-08-17
申请号:US17651217
申请日:2022-02-15
Applicant: Micron Technology, Inc.
Inventor: Agostino Pirovano , Fabio Pellizzer
CPC classification number: H01L27/249 , H01L27/2454 , H01L45/06 , H01L45/1683
Abstract: Methods, systems, and devices for a vertical memory architecture are described. A memory device may include memory cells arranged in a three-dimensional vertical memory architecture. Each memory cell may include a storage element (e.g., a chalcogenide material), where a logic state may be programmed at the storage element based on a polarity of an applied voltage that exceeds a threshold voltage. The storage element may be coupled with a selection element and a conductive line. The selection element may be coupled with a bit line decoder and a word line decoder via vertical pillars. The selection element may selectively couple the storage element with the bit line decoder. In some examples, an activation voltage for the selection element may be less than a threshold voltage of the storage element.
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