Resistive elements using carbon nanotubes
    81.
    发明授权
    Resistive elements using carbon nanotubes 有权
    使用碳纳米管的电阻元件

    公开(公告)号:US07859385B2

    公开(公告)日:2010-12-28

    申请号:US12111442

    申请日:2008-04-29

    IPC分类号: H01C10/00

    摘要: Resistive elements include a patterned region of nanofabric having a predetermined area, where the nanofabric has a selected sheet resistance; and first and second electrical contacts contacting the patterned region of nanofabric and in spaced relation to each other. The resistance of the element between the first and second electrical contacts is determined by the selected sheet resistance of the nanofabric, the area of nanofabric, and the spaced relation of the first and second electrical contacts. The bulk resistance is tunable.

    摘要翻译: 电阻元件包括具有预定面积的纳米纤维的图案化区域,其中纳米纤维具有选定的薄层电阻; 以及第一和第二电触头接触纳米尺寸的图案化区域并且彼此间隔开。 元件在第一和第二电触点之间的电阻由所选择的纳米尺寸的薄层电阻,纳米的面积以及第一和第二电触头间隔的关系来确定。 体积电阻是可调谐的。

    Memory elements and cross point switches and arrays of same using nonvolatile nanotube blocks
    82.
    发明授权
    Memory elements and cross point switches and arrays of same using nonvolatile nanotube blocks 有权
    存储元件和交叉点开关以及使用非易失性纳米管块的阵列

    公开(公告)号:US07835170B2

    公开(公告)日:2010-11-16

    申请号:US11835613

    申请日:2007-08-08

    IPC分类号: G11C11/00

    摘要: Under one aspect, a covered nanotube switch includes: (a) a nanotube element including an unaligned plurality of nanotubes, the nanotube element having a top surface, a bottom surface, and side surfaces; (b) first and second terminals in contact with the nanotube element, wherein the first terminal is disposed on and substantially covers the entire top surface of the nanotube element, and wherein the second terminal contacts at least a portion of the bottom surface of the nanotube element; and (c) control circuitry capable of applying electrical stimulus to the first and second terminals. The nanotube element can switch between a plurality of electronic states in response to a corresponding plurality of electrical stimuli applied by the control circuitry to the first and second terminals. For each different electronic state, the nanotube element provides an electrical pathway of different resistance between the first and second terminals.

    摘要翻译: 在一个方面,覆盖的纳米管开关包括:(a)包括不对齐的多个纳米管的纳米管元件,所述纳米管元件具有顶表面,底表面和侧表面; (b)与纳米管元件接触的第一和第二端子,其中第一端子设置在并基本上覆盖纳米管元件的整个顶表面,并且其中第二端子接触纳米管的底表面的至少一部分 元件; 和(c)能够向第一和第二端子施加电刺激的控制电路。 纳米管元件可以响应于由控制电路施加到第一和第二端子的对应的多个电刺激而在多个电子状态之间切换。 对于每个不同的电子状态,纳米管元件提供在第一和第二端子之间具有不同电阻的电路径。

    Sensor platform using a non-horizontally oriented nanotube element
    84.
    发明授权
    Sensor platform using a non-horizontally oriented nanotube element 有权
    传感器平台使用非水平取向的纳米管元件

    公开(公告)号:US07786540B2

    公开(公告)日:2010-08-31

    申请号:US11827393

    申请日:2007-07-11

    IPC分类号: H01L23/00

    摘要: Sensor platforms and methods of making them are described. A platform having a non-horizontally oriented sensor element comprising one or more nanostructures such as nanotubes is described. Under certain embodiments, a sensor element has or is made to have an affinity for an analyte. Under certain embodiments, such a sensor element comprises one or more pristine nanotubes. Under certain embodiments, the sensor element comprises derivatized or functionalized nanotubes. Under certain embodiments, a sensor is made by providing a support structure; providing one or more nanotubes on the structure to provide material for a sensor element; and providing circuitry to electrically sense the sensor element's electrical characterization. Under certain embodiments, the sensor element comprises pre-derivatized or pre-functionalized nanotubes. Under other embodiments, sensor material is derivatized or functionalized after provision on the structure or after patterning. Under certain embodiments, a large-scale array of sensor platforms includes a plurality of sensor elements.

    摘要翻译: 介绍传感器平台及其制作方法。 描述了具有包括一个或多个纳米结构如纳米管的非水平定向的传感器元件的平台。 在某些实施方案中,传感器元件具有或被制成对分析物具有亲和性。 在某些实施例中,这种传感器元件包括一个或多个原始纳米管。 在某些实施方案中,传感器元件包括衍生的或功能化的纳米管。 在某些实施例中,通过提供支撑结构来制造传感器; 在所述结构上提供一个或多个纳米管以提供用于传感器元件的材料; 以及提供用于电感测传感器元件电特性的电路。 在某些实施方案中,传感器元件包括预衍生化或预官能化的纳米管。 在其它实施例中,传感器材料在结构上提供之后或在图案化之后被衍生化或功能化。 在某些实施例中,传感器平台的大规模阵列包括多个传感器元件。

    Volatile nanotube-based switching elements with multiple controls
    85.
    发明授权
    Volatile nanotube-based switching elements with multiple controls 有权
    基于挥发性纳米管的开关元件与多个控制

    公开(公告)号:US07782652B2

    公开(公告)日:2010-08-24

    申请号:US12246009

    申请日:2008-10-06

    IPC分类号: G11C11/00

    摘要: Nanotube-based switching elements with multiple controls and circuits made from such. A switching element includes an input node, an output node, and a nanotube channel element having at least one electrically conductive nanotube. A control structure is disposed in relation to the nanotube channel element to controllably form and unform an electrically conductive channel between said input node and said output node. The output node is constructed and arranged so that channel formation is substantially unaffected by the electrical state of the output node. The control structure includes a control electrode and a release electrode, disposed on opposite sides of the nanotube channel element. The control and release may be used to form a differential input, or if the device is constructed appropriately to operate the circuit in a non-volatile manner. The switching elements may be arranged into logic circuits and latches having differential inputs and/or non-volatile behavior.

    摘要翻译: 基于纳米管的开关元件具有由此制成的多个控制和电路。 开关元件包括输入节点,输出节点和具有至少一个导电纳米管的纳米管通道元件。 相对于纳米管通道元件设置控制结构,以可控地形成和取消所述输入节点和所述输出节点之间的导电通道。 输出节点的构造和布置使得通道形成基本上不受输出节点的电气状态的影响。 控制结构包括设置在纳米管通道元件的相对侧上的控制电极和释放电极。 控制和释放可用于形成差分输入,或者如果该装置被适当地构造以以非易失性方式操作电路。 开关元件可以被布置成具有差分输入和/或非易失性行为的逻辑电路和锁存器。

    Nanotube device structure and methods of fabrication
    86.
    发明授权
    Nanotube device structure and methods of fabrication 有权
    纳米管器件结构及其制造方法

    公开(公告)号:US07777222B2

    公开(公告)日:2010-08-17

    申请号:US12548131

    申请日:2009-08-26

    摘要: Nanotube device structures and methods of fabrication. A method of making a nanotube switching element includes forming a first structure having at a first output electrode; forming second structure having a second output electrode; forming a conductive article having at least one nanotube, the article having first and second ends; positioning the conductive article between said first and second structures such that the first structure clamps the first and second ends of the article to the second structure, and such that the first and second output electrodes are opposite each other with the article positioned therebetween; providing at least one signal electrode in electrical communication with the conductive article; and providing at least one control electrode in spaced relation to the conductive article such that the control electrode may control the conductive article to form a conductive pathway between the signal electrode and the first output electrode.

    摘要翻译: 纳米管器件结构和制造方法。 制造纳米管开关元件的方法包括:形成具有第一输出电极的第一结构; 形成具有第二输出电极的第二结构; 形成具有至少一个纳米管的导电制品,所述制品具有第一和第二端; 将导电制品定位在所述第一和第二结构之间,使得第一结构将制品的第一和第二端夹持到第二结构,并且使得第一和第二输出电极彼此相对,物品位于它们之间; 提供至少一个与所述导电制品电连通的信号电极; 以及提供与所述导电制品间隔开的至少一个控制电极,使得所述控制电极可以控制所述导电制品以在所述信号电极和所述第一输出电极之间形成导电路径。

    Field effect devices having a gate controlled via a nanotube switching element
    87.
    发明授权
    Field effect devices having a gate controlled via a nanotube switching element 有权
    具有通过纳米管开关元件控制的栅极的场效应器件

    公开(公告)号:US07709880B2

    公开(公告)日:2010-05-04

    申请号:US11742290

    申请日:2007-04-30

    IPC分类号: H01L29/78

    摘要: Field effect devices having a gate controlled via a nanotube switching element. Under one embodiment, a non-volatile transistor device includes a source region and a drain region of a first semiconductor type of material and each in electrical communication with a respective terminal. A channel region of a second semiconductor type of material is disposed between the source and drain region. A gate structure is disposed over an insulator over the channel region and has a corresponding terminal. A nanotube switching element is responsive to a first control terminal and a second control terminal and is electrically positioned in series between the gate structure and the terminal corresponding to the gate structure. The nanotube switching element is electromechanically operable to one of an open and closed state to thereby open or close an electrical communication path between the gate structure and its corresponding terminal. When the nanotube switching element is in the closed state, the channel conductivity and operation of the device is responsive to electrical stimulus at the terminals corresponding to the source and drain regions and the gate structure.

    摘要翻译: 具有通过纳米管开关元件控制的栅极的场效应器件。 在一个实施例中,非易失性晶体管器件包括第一半导体类型的材料的源极区域和漏极区域,并且各自与相应的端子电连通。 第二半导体类型的材料的沟道区域设置在源区和漏区之间。 栅极结构设置在沟道区域上方的绝缘体上并具有对应的端子。 纳米管开关元件响应于第一控制端子和第二控制端子,并且电连接地定位在栅极结构和对应于栅极结构的端子之间。 纳米管开关元件在机械上可操作地处于打开和关闭状态之一,从而打开或关闭栅极结构及其对应端子之间的电连通路径。 当纳米管开关元件处于闭合状态时,器件的沟道导电性和操作响应于对应于源极和漏极区域以及栅极结构的端子处的电刺激。

    RANDOM ACCESS MEMORY INCLUDING NANOTUBE SWITCHING ELEMENTS
    88.
    发明申请
    RANDOM ACCESS MEMORY INCLUDING NANOTUBE SWITCHING ELEMENTS 有权
    随机存取存储器,包括纳米管开关元件

    公开(公告)号:US20100005645A1

    公开(公告)日:2010-01-14

    申请号:US12550975

    申请日:2009-08-31

    IPC分类号: H01S4/00

    摘要: Random access memory including nanotube switching elements. A memory cell includes first and second nanotube switching elements and an electronic memory. Each nanotube switching element includes conductive terminals, a nanotube article and control circuitry capable of controllably form and unform an electrically conductive channel between the conductive terminals. The electronic memory is a volatile storage device capable of storing a logic state in response to electrical stimulus. In certain embodiment the electronic memory has cross-coupled first and second inverters in electrical communication with the first and second nanotube switching elements. The cell can operate as a normal electronic memory, or can operate in a shadow memory or store mode (e.g., when power is interrupted) to transfer the electronic memory state to the nanotube switching elements. The device may later be operated in a recall mode where the state of the nanotube switching elements may be transferred to the electronic memory.

    摘要翻译: 随机存取存储器包括纳米管开关元件。 存储单元包括第一和第二纳米管切换元件和电子存储器。 每个纳米管切换元件包括导电端子,纳米管制品和能够可控地形成和取消导电端子之间的导电通道的控制电路。 电子存储器是能够响应于电刺激而存储逻辑状态的易失性存储装置。 在某些实施例中,电子存储器具有与第一和第二纳米管切换元件电连通的交叉耦合的第一和第二反相器。 电池可以作为普通电子存储器工作,或者可以在阴影存储器或存储模式(例如,当电力中断时)操作以将电子存储器状态传送到纳米管开关元件。 该装置可以稍后在调谐模式下操作,其中纳米管切换元件的状态可以被传送到电子存储器。

    Bistable latch circuit implemented with nanotube-based switching elements
    90.
    发明授权
    Bistable latch circuit implemented with nanotube-based switching elements 有权
    双稳态锁存电路采用基于纳米管的开关元件实现

    公开(公告)号:US07542334B2

    公开(公告)日:2009-06-02

    申请号:US11971476

    申请日:2008-01-09

    IPC分类号: G11C11/41

    摘要: A nanotube-based switching element includes an input node, an output node, and a nanotube channel element having at least one electrically conductive nanotube. A control structure is disposed in relation to the nanotube channel element to controllably form and unform an electrically conductive channel between said input node and said output node. The output node is constructed and arranged so that channel formation is substantially unaffected by the electrical state of the output node. The control structure includes a control electrode and a release electrode, disposed on opposite sides of the nanotube channel element. The control and release may be used to form a differential input, or if the device is constructed appropriately to operate the circuit in a non-volatile manner. The switching elements may be arranged into logic circuits and latches having differential inputs and/or non-volatile behavior.

    摘要翻译: 一种基于纳米管的开关元件包括输入节点,输出节点和具有至少一个导电纳米管的纳米管通道元件。 相对于纳米管通道元件设置控制结构,以可控地形成和取消所述输入节点和所述输出节点之间的导电通道。 输出节点的构造和布置使得通道形成基本上不受输出节点的电气状态的影响。 控制结构包括设置在纳米管通道元件的相对侧上的控制电极和释放电极。 控制和释放可用于形成差分输入,或者如果该装置被适当地构造以以非易失性方式操作电路。 开关元件可以被布置成具有差分输入和/或非易失性行为的逻辑电路和锁存器。