公开(公告)号：US08634224B2

公开(公告)日：2014-01-21

申请号：US12855624

申请日：2010-08-12

Applicant: Bhaskar Srinivasan ,  Gurtej S. Sandhu

Inventor： Bhaskar Srinivasan ,  Gurtej S. Sandhu

IPC: G11C11/00

CPC classification number: G11C13/0002 ,  G11C13/0007 ,  G11C13/0011 ,  G11C13/003 ,  G11C13/004 ,  G11C13/0069 ,  G11C2213/12 ,  G11C2213/32 ,  G11C2213/34 ,  G11C2213/52 ,  G11C2213/56 ,  G11C2213/77 ,  H01L27/101 ,  H01L45/08 ,  H01L45/085 ,  H01L45/1206

Abstract: In one aspect, a method of operating a memory cell includes using different electrodes to change a programmed state of the memory cell than are used to read the programmed state of the memory cell. In one aspect, a memory cell includes first and second opposing electrodes having material received there-between. The material has first and second lateral regions of different composition relative one another. One of the first and second lateral regions is received along one of two laterally opposing edges of the material. Another of the first and second lateral regions is received along the other of said two laterally opposing edges of the material. At least one of the first and second lateral regions is capable of being repeatedly programmed to at least two different resistance states. Other aspects and implementations are disclosed.

Abstract translation: 一方面，操作存储单元的方法包括使用不同的电极来改变存储器单元的编程状态，而不是用于读取存储单元的编程状态。 在一个方面，存储单元包括第一和第二相对电极，其间具有接收在其间的材料。 该材料具有彼此不同组成的第一和第二横向区域。 第一和第二横向区域中的一个沿着材料的两个横向相对的边缘中的一个被接收。 第一和第二横向区域中的另一个沿着材料的所述两个横向相对的边缘中的另一个被容纳。 第一和第二横向区域中的至少一个能够被重复编程至至少两个不同的阻力状态。 公开了其他方面和实现。

公开(公告)号：US20130187117A1

公开(公告)日：2013-07-25

申请号：US13355382

申请日：2012-01-20

Applicant: Gurtej S. Sandhu ,  Bhaskar Srinivasan

Inventor： Gurtej S. Sandhu ,  Bhaskar Srinivasan

IPC: H01L45/00 ,  H01L21/8239

CPC classification number: H01L45/08 ,  H01L45/1233 ,  H01L45/1253 ,  H01L45/145 ,  H01L45/146 ,  H01L45/1608

Abstract: Some embodiments include memory cells which contain, in order; a first electrode material, a first metal oxide material, a second metal oxide material, and a second electrode material. The first metal oxide material has at least two regions which differ in oxygen concentration relative to one another. One of the regions is a first region and another is a second region. The first region is closer to the first electrode material than the second region, and has a greater oxygen concentration than the second region. The second metal oxide material includes a different metal than the first metal oxide material. Some embodiments include methods of forming memory cells in which oxygen is substantially irreversibly transferred from a region of a metal oxide material to an oxygen-sink material. The oxygen transfer creates a difference in oxygen concentration within one region of the metal oxide material relative to another.

公开(公告)号：US08199556B2

公开(公告)日：2012-06-12

申请号：US12564265

申请日：2009-09-22

Applicant: Bhaskar Srinivasan ,  Gurtej S. Sandhu

Inventor： Bhaskar Srinivasan ,  Gurtej S. Sandhu

IPC: G11C11/00

CPC classification number: G11C13/004 ,  G11C13/0002 ,  G11C13/0007 ,  G11C13/0061 ,  G11C2013/0052 ,  G11C2213/72

Abstract: Some embodiments include methods of reading memory cells. The memory cells have a write operation that occurs only if a voltage of sufficient absolute value is applied for a sufficient duration of time; and the reading is conducted with a pulse that is of too short of a time duration to be sufficient for the write operation. In some embodiments, the pulse utilized for the reading may have an absolute value of voltage that is greater than or equal to the voltage utilized for the write operation. In some embodiments, the memory cells may comprise non-ohmic devices; such as memristors and diodes.

Abstract translation: 一些实施例包括读取存储器单元的方法。 存储器单元具有写入操作，只有当足够的绝对值的电压施加足够的持续时间时才发生; 并且读取是用太短的持续时间的脉冲来进行的，以足以用于写入操作。 在一些实施例中，用于读取的脉冲可以具有大于或等于用于写入操作的电压的绝对值。 在一些实施例中，存储器单元可以包括非欧姆器件; 如忆阻器和二极管。

公开(公告)号：US20120070973A1

公开(公告)日：2012-03-22

申请号：US13305072

申请日：2011-11-28

Applicant: Gurtej S. Sandhu ,  Bhaskar Srinivasan

Inventor： Gurtej S. Sandhu ,  Bhaskar Srinivasan

IPC: H01L21/04

CPC classification number: H01L21/04 ,  H01L27/1021 ,  H01L27/2418 ,  H01L29/1606 ,  H01L45/00

Abstract: Some embodiments include methods of forming diodes. A stack may be formed over a first conductive material. The stack may include, in ascending order, a sacrificial material, at least one dielectric material, and a second conductive material. Spacers may be formed along opposing sidewalls of the stack, and then an entirety of the sacrificial material may be removed to leave a gap between the first conductive material and the at least one dielectric material. In some embodiments of forming diodes, a layer may be formed over a first conductive material, with the layer containing supports interspersed in sacrificial material. At least one dielectric material may be formed over the layer, and a second conductive material may be formed over the at least one dielectric material. An entirety of the sacrificial material may then be removed.

Abstract translation: 一些实施例包括形成二极管的方法。 可以在第一导电材料上形成堆叠。 堆叠可以按升序包括牺牲材料，至少一种电介质材料和第二导电材料。 间隔物可以沿着堆叠的相对侧壁形成，然后可以去除整个牺牲材料以在第一导电材料和至少一种电介质材料之间留下间隙。 在形成二极管的一些实施例中，可以在第一导电材料上形成层，其中包含支撑体的层散布在牺牲材料中。 可以在该层上形成至少一种介电材料，并且可以在该至少一种电介质材料的上方形成第二导电材料。 然后可以去除整个牺牲材料。

公开(公告)号：US20120051132A1

公开(公告)日：2012-03-01

申请号：US12872368

申请日：2010-08-31

Applicant: Gurtej S. Sandhu ,  Bhaskar Srinivasan

Inventor： Gurtej S. Sandhu ,  Bhaskar Srinivasan

IPC: G11C11/36 ,  G11C11/34

CPC classification number: G11C16/0416 ,  G11C16/0483

Abstract: Memory cell structures and methods are described herein. One or more memory cells include a transistor having a charge storage node, a dielectric material positioned between the charge storage node and a channel region of the transistor, the channel region positioned between a source region and a drain region, and a first electrode of a diode coupled to the charge storage node.

公开(公告)号：US07811840B2

公开(公告)日：2010-10-12

申请号：US12128334

申请日：2008-05-28

Applicant: Gurtej S. Sandhu ,  Bhaskar Srinivasan

Inventor： Gurtej S. Sandhu ,  Bhaskar Srinivasan

IPC: H01L21/00

CPC classification number: H01L45/00 ,  Y10S257/91 ,  Y10S438/90 ,  Y10S438/902 ,  Y10S438/983

Abstract: Some embodiments include methods of forming diodes. The methods may include oxidation of an upper surface of a conductive electrode to form an oxide layer over the conductive electrode. In some embodiments, the methods may include formation of an oxidizable material over a conductive electrode, and subsequent oxidation of the oxidizable material to form an oxide layer over the conductive electrode. In some embodiments, the methods may include formation of a metal halide layer over a conductive electrode. Some embodiments include diodes that contain a metal halide layer between a pair of diode electrodes.

Abstract translation: 一些实施例包括形成二极管的方法。 所述方法可以包括氧化导电电极的上表面以在导电电极上形成氧化物层。 在一些实施方案中，所述方法可包括在导电电​​极上形成可氧化材料，以及随后氧化可氧化材料以在导电电极上形成氧化物层。 在一些实施例中，所述方法可包括在导电电​​极上形成金属卤化物层。 一些实施例包括在一对二极管电极之间包含金属卤化物层的二极管。

公开(公告)号：US20100129980A1

公开(公告)日：2010-05-27

申请号：US12323978

申请日：2008-11-26

Applicant: Gurtej S. Sandhu ,  Bhaskar Srinivasan

Inventor： Gurtej S. Sandhu ,  Bhaskar Srinivasan

IPC: H01L21/329

CPC classification number: H01L21/04 ,  H01L27/1021 ,  H01L27/2418 ,  H01L29/1606 ,  H01L45/00

Abstract: Some embodiments include methods of forming diodes. A stack may be formed over a first conductive material. The stack may include, in ascending order, a sacrificial material, at least one dielectric material, and a second conductive material. Spacers may be formed along opposing sidewalls of the stack, and then an entirety of the sacrificial material may be removed to leave a gap between the first conductive material and the at least one dielectric material. In some embodiments of forming diodes, a layer may be formed over a first conductive material, with the layer containing supports interspersed in sacrificial material. At least one dielectric material may be formed over the layer, and a second conductive material may be formed over the at least one dielectric material. An entirety of the sacrificial material may then be removed.

Abstract translation: 一些实施例包括形成二极管的方法。 可以在第一导电材料上形成堆叠。 堆叠可以按升序包括牺牲材料，至少一种电介质材料和第二导电材料。 间隔物可以沿着堆叠的相对侧壁形成，然后可以去除整个牺牲材料以在第一导电材料和至少一个电介质材料之间留下间隙。 在形成二极管的一些实施例中，可以在第一导电材料上形成层，其中包含支撑体的层散布在牺牲材料中。 可以在该层上形成至少一种介电材料，并且可以在该至少一种电介质材料的上方形成第二导电材料。 然后可以去除整个牺牲材料。

公开(公告)号：US08498156B2

公开(公告)日：2013-07-30

申请号：US13554278

申请日：2012-07-20

Applicant: Gurtej S. Sandhu ,  Bhaskar Srinivasan

Inventor： Gurtej S. Sandhu ,  Bhaskar Srinivasan

IPC: G11C16/04 ,  H01L29/788

CPC classification number: G11C16/0416 ,  G11C16/0483

Abstract: Memory cell structures and methods are described herein. One or more memory cells include a transistor having a charge storage node, a dielectric material positioned between the charge storage node and a channel region of the transistor, the channel region positioned between a source region and a drain region, and a first electrode of a diode coupled to the charge storage node.

Abstract translation: 本文描述了存储单元结构和方法。 一个或多个存储单元包括具有电荷存储节点的晶体管，位于电荷存储节点和晶体管的沟道区之间的电介质材料，位于源区和漏区之间的沟道区，以及位于源区和漏区之间的第一电极 耦合到电荷存储节点的二极管。

公开(公告)号：US08008162B2

公开(公告)日：2011-08-30

申请号：US12274181

申请日：2008-11-19

Applicant: Bhaskar Srinivasan ,  Gurtej S. Sandhu

Inventor： Bhaskar Srinivasan ,  Gurtej S. Sandhu

IPC: H01L21/20

CPC classification number: H01L29/88 ,  H01L21/3205 ,  H01L27/1021 ,  Y10S438/957

Abstract: Select devices including an open volume that functions as a high bandgap material having a low dielectric constant are disclosed. The open volume may provide a more nonlinear, asymmetric I-V curve and enhanced rectifying behavior in the select devices. The select devices may comprise, for example, a metal-insulator-insulator-metal (MIIM) diode. Various methods may be used to form select devices and memory systems including such select devices. Memory devices and electronic systems include such select devices.

Abstract translation: 公开了包括用作具有低介电常数的高带隙材料的开放体积的装置。 开放体积可以在选择装置中提供更非线性的非对称I-V曲线和增强的整流行为。 选择装置可以包括例如金属 - 绝缘体 - 绝缘体 - 金属（MIIM）二极管。 可以使用各种方法来形成包括这种选择装置的选择装置和存储器系统。 存储器件和电子系统包括这样的选择器件。

公开(公告)号：US09343665B2

公开(公告)日：2016-05-17

申请号：US12166604

申请日：2008-07-02

Applicant: Nishant Sinha ,  John Smythe ,  Bhaskar Srinivasan ,  Gurtej S. Sandhu ,  Joseph Neil Greeley ,  Kunal R. Parekh

Inventor： Nishant Sinha ,  John Smythe ,  Bhaskar Srinivasan ,  Gurtej S. Sandhu ,  Joseph Neil Greeley ,  Kunal R. Parekh

IPC: H01L45/00 ,  H01L27/24

CPC classification number: H01L45/1683 ,  H01L27/2472 ,  H01L45/04 ,  H01L45/085 ,  H01L45/1233 ,  H01L45/1266 ,  H01L45/146 ,  H01L45/147 ,  H01L45/16

Abstract: A method of forming a non-volatile resistive oxide memory cell includes forming a first conductive electrode of the memory cell as part of a substrate. Metal oxide-comprising material is formed over the first conductive electrode. Etch stop material is deposited over the metal oxide-comprising material. Conductive material is deposited over the etch stop material. A second conductive electrode of the memory cell which comprises the conductive material received is formed over the etch stop material. Such includes etching through the conductive material to stop relative to the etch stop material and forming the non-volatile resistive oxide memory cell to comprise the first and second conductive electrodes having both the metal oxide-comprising material and the etch stop material therebetween. Other implementations are contemplated.

Abstract translation: 形成非易失性电阻氧化物存储单元的方法包括：形成存储单元的第一导电电极作为衬底的一部分。 含金属氧化物的材料形成在第一导电电极上。 蚀刻停止材料沉积在包含金属氧化物的材料上。 导电材料沉积在蚀刻停止材料上。 包含所接收的导电材料的存储单元的第二导电电极形成在蚀刻停止材料上。 这样包括通过导电材料蚀刻以相对于蚀刻停止材料停止并且形成非易失性电阻氧化物存储单元，以包括具有包含金属氧化物的材料和其间的蚀刻停止材料的第一和第二导电电极。 考虑其他实现。