Methods of nanotubes films and articles
    122.
    发明授权
    Methods of nanotubes films and articles 有权
    纳米管薄膜和制品的方法

    公开(公告)号:US07264990B2

    公开(公告)日:2007-09-04

    申请号:US11010491

    申请日:2004-12-13

    IPC分类号: H01L51/40

    摘要: Nanotube films and articles and methods of making the same are disclosed. A conductive article includes an aggregate of nanotube segments in which the nanotube segments contact other nanotube segments to define a plurality of conductive pathways along the article. The nanotube segments may be single walled carbon nanotubes, or multi-walled carbon nanotubes. The various segments may have different lengths and may include segments having a length shorter than the length of the article. The articles so formed may be disposed on substrates, and may form an electrical network of nanotubes within the article itself. Conductive articles may be made on a substrate by forming a nanotube fabric on the substrate, and defining a pattern within the fabric in which the pattern corresponds to the conductive article. The nanotube fabric may be formed by growing the nanotube fabric on the substrate using a catalyst, for example, in which the catalyst is a gas phase catalyst, or in which the catalyst is a metallic gas phase catalyst. The nanotube fabric may be formed by depositing a solution of suspended nanotubes on the substrate. The deposited solution may be spun to create a spin-coating of the solution. The solution may be deposited by dipping the substrate into the solution. The nanotube fabric is formed by spraying an aerosol having nanotubes onto a surface of the substrate.

    摘要翻译: 公开了纳米管薄膜及制品及其制造方法。 导电制品包括纳米管段的聚集体,其中纳米管区段与其他纳米管区段接触以限定沿着制品的多个导电路径。 纳米管段可以是单壁碳纳米管或多壁碳纳米管。 各个片段可以具有不同的长度,并且可以包括长度短于制品的长度的片段。 如此形成的制品可以设置在基底上,并且可以在制品本身内形成纳米管的电网络。 可以在衬底上形成导电制品,在基底上形成纳米管织物,并且在织物内限定图案对应于导电制品的图案。 纳米管织物可以通过使用例如其中催化剂是气相催化剂的催化剂或催化剂是金属气相催化剂在纳米管织物上生长纳米管织物而形成。 可以通过在衬底上沉积悬浮的纳米管溶液来形成纳米管织物。 可以将沉积的溶液纺丝以产生溶液的旋涂。 可以通过将基底浸入溶液中来沉积溶液。 纳米管织物通过将具有纳米管的气溶胶喷射到基底的表面上而形成。

    Nanotube-based switching elements and logic circuits

    公开(公告)号:US07138832B2

    公开(公告)日:2006-11-21

    申请号:US10917893

    申请日:2004-08-13

    IPC分类号: H03K19/20

    摘要: Nanotube-based switching elements and logic circuits. Under one embodiment of the invention, a switching element includes an input node, an output node, a nanotube channel element having at least one electrically conductive nanotube, and a control electrode. The control electrode is disposed in relation to the nanotube channel element to controllably form an electrically conductive channel between the input node and the output node. The channel at least includes said nanotube channel element. The output node is constructed and arranged so that channel formation is substantially unaffected by the electrical state of the output node. Under another embodiment of the invention, the control electrode is arranged in relation to the nanotube channel element to form said conductive channel by causing electromechanical deflection of said nanotube channel element. Under another embodiment of the invention, the output node includes an isolation structure disposed in relation to the nanotube channel element so that channel formation is substantially invariant from the state of the output node. Under another embodiment of the invention, the isolation structure includes electrodes disposed on opposite sides of the nanotube channel element and said electrodes produce substantially the same electric field. Under another embodiment of the invention, a Boolean logic circuit includes at least one input terminal and an output terminal, and a network of nanotube switching elements electrically disposed between said at least one input terminal and said output terminal. The network of nanotube switching elements effectuates a Boolean function transformation of Boolean signals on said at least one input terminal. The Boolean function transformation includes a Boolean inversion within the function, such as a NOT or NOR function.

    Nanotube-based switching elements
    124.
    发明授权
    Nanotube-based switching elements 有权
    基于纳米管的开关元件

    公开(公告)号:US07115960B2

    公开(公告)日:2006-10-03

    申请号:US10917794

    申请日:2004-08-13

    IPC分类号: H01L29/84

    摘要: Nanotube-based switching elements and logic circuits. Under one embodiment of the invention, a switching element includes an input node, an output node, a nanotube channel element having at least one electrically conductive nanotube, and a control electrode. The control electrode is disposed in relation to the nanotube channel element to controllably form an electrically conductive channel between the input node and the output node. The channel at least includes said nanotube channel element. The output node is constructed and arranged so that channel formation is substantially unaffected by the electrical state of the output node. Under another embodiment of the invention, the control electrode is arranged in relation to the nanotube channel element to form said conductive channel by causing electromechanical deflection of said nanotube channel element. Under another embodiment of the invention, the output node includes an isolation structure disposed in relation to the nanotube channel element so that channel formation is substantially invariant from the state of the output node. Under another embodiment of the invention, the isolation structure includes electrodes disposed on opposite sides of the nanotube channel element and said electrodes produce substantially the same electric field. Under another embodiment of the invention, a Boolean logic circuit includes at least one input terminal and an output terminal, and a network of nanotube switching elements electrically disposed between said at least one input terminal and said output terminal. The network of nanotube switching elements effectuates a Boolean function transformation of Boolean signals on said at least one input terminal. The Boolean function transformation includes a Boolean inversion within the function, such as a NOT or NOR function.

    摘要翻译: 基于纳米管的开关元件和逻辑电路。 在本发明的一个实施例中,开关元件包括输入节点,输出节点,具有至少一个导电纳米管的纳米管通道元件和控制电极。 控制电极相对于纳米管通道元件设置,以在输入节点和输出节点之间可控制地形成导电通道。 通道至少包括所述纳米管通道元件。 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。 在本发明的另一实施例中,控制电极相对于纳米管通道元件布置,以通过引起所述纳米管通道元件的机电偏转而形成所述导电通道。 在本发明的另一个实施例中,输出节点包括相对于纳米管通道元件设置的隔离结构,使得通道形成从输出节点的状态基本上是不变的。 在本发明的另一个实施例中,隔离结构包括设置在纳米管通道元件的相对侧上的电极,所述电极产生基本上相同的电场。 在本发明的另一个实施例中,布尔逻辑电路包括至少一个输入端子和输出端子,以及电气地布置在所述至少一个输入端子和所述输出端子之间的纳米管开关元件网络。 纳米管切换元件的网络在所述至少一个输入端上实现布尔信号的布尔函数变换。 布尔函数变换包括函数内的布尔反转,如NOT或NOR函数。

    Non-volatile RAM cell and array using nanotube switch position for information state
    125.
    发明授权
    Non-volatile RAM cell and array using nanotube switch position for information state 有权
    非易失性RAM单元和阵列使用纳米管开关位置进行信息状态

    公开(公告)号:US07113426B2

    公开(公告)日:2006-09-26

    申请号:US10810963

    申请日:2004-03-26

    IPC分类号: G11C11/34 G11C11/00

    摘要: Non-Volatile RAM Cell and Array using Nanotube Switch Position for Information State. A non-volatile memory array includes a plurality of memory cells, each cell receiving a bit line, word line, and release line. Each memory cell includes a cell selection transistor with first, second and third nodes. The first and second nodes are in respective electrical communication with the bit line and the word line. Each cell further includes an electromechanically deflectable switch, having a first, second and third node. The first node is in electrical communication with the release line, and a third node is in electrical communication with the third node of the cell selection transistor. The electromechanically deflectable switch includes a nanotube switching element physically positioned between the first and third nodes of the switch and in electrical communication with the second node of the switch. The second node of the switch is in communication with a reference signal. Each nanotube switching element is deflectable into contact with the third node of the switch in response to signals at the first and second node of the cell selection transistor and is releasable from such contact in response to a signal at the release line. In preferred embodiments, the cell selection transistor is a FET and the second node of the transistor is a gate of the FET.

    摘要翻译: 非易失性RAM单元和阵列使用纳米管切换位置信息状态。 非易失性存储器阵列包括多个存储器单元,每个单元接收位线,字线和释放线。 每个存储单元包括具有第一,第二和第三节点的单元选择晶体管。 第一和第二节点与位线和字线分别电气通信。 每个单元还包括具有第一,第二和第三节点的机电偏转开关。 第一节点与释放线电连通,第三节点与小区选择晶体管的第三节点电通信。 机电可偏转开关包括物理地位于开关的第一和第三节点之间并与开关的第二节点电通信的纳米管开关元件。 交换机的第二个节点与参考信号通信。 每个纳米管开关元件响应于电池选择晶体管的第一和第二节点处的信号而偏转成与开关的第三节点接触,并且响应于释放线处的信号而可从该接触件释放。 在优选实施例中,电池选择晶体管是FET,晶体管的第二节点是FET的栅极。

    Nanotube films and articles
    128.
    发明授权
    Nanotube films and articles 有权
    纳米管薄膜和文章

    公开(公告)号:US06942921B2

    公开(公告)日:2005-09-13

    申请号:US10776573

    申请日:2004-02-11

    摘要: Nanotube films and articles and methods of making the same are disclosed. A conductive article includes an aggregate of nanotube segments in which the nanotube segments contact other nanotube segments to define a plurality of conductive pathways along the article. The nanotube segments may be single walled carbon nanotubes, or multi-walled carbon nanotubes. The various segments may have different lengths and may include segments having a length shorter than the length of the article. The articles so formed may be disposed on substrates, and may form an electrical network of nanotubes within the article itself. Conductive articles may be made on a substrate by forming a nanotube fabric on the substrate, and defining a pattern within the fabric in which the pattern corresponds to the conductive article. The nanotube fabric may be formed by growing the nanotube fabric on the substrate using a catalyst, for example, in which the catalyst is a gas phase catalyst, or in which the catalyst is a metallic gas phase catalyst. The nanotube fabric may be formed by depositing a solution of suspended nanotubes on the substrate. The deposited solution may be spun to create a spin-coating of the solution. The solution may be deposited by dipping the substrate into the solution. The nanotube fabric is formed by spraying an aerosol having nanotubes onto a surface of the substrate.

    摘要翻译: 公开了纳米管薄膜及制品及其制造方法。 导电制品包括纳米管段的聚集体,其中纳米管区段与其他纳米管区段接触以限定沿着制品的多个导电路径。 纳米管段可以是单壁碳纳米管或多壁碳纳米管。 各个片段可以具有不同的长度,并且可以包括长度短于制品的长度的片段。 如此形成的制品可以设置在基底上,并且可以在制品本身内形成纳米管的电网络。 可以在衬底上形成导电制品,在基底上形成纳米管织物,并且在织物内限定图案对应于导电制品的图案。 纳米管织物可以通过使用例如其中催化剂是气相催化剂的催化剂或催化剂是金属气相催化剂在纳米管织物上生长纳米管织物而形成。 可以通过在衬底上沉积悬浮的纳米管溶液来形成纳米管织物。 可以将沉积的溶液纺丝以产生溶液的旋涂。 可以通过将基底浸入溶液中来沉积溶液。 纳米管织物通过将具有纳米管的气溶胶喷射到基底的表面上而形成。

    Devices having vertically-disposed nanofabric articles and methods of making the same
    129.
    发明授权
    Devices having vertically-disposed nanofabric articles and methods of making the same 失效
    具有垂直布置的纳米制品的装置及其制造方法

    公开(公告)号:US06924538B2

    公开(公告)日:2005-08-02

    申请号:US10776572

    申请日:2004-02-11

    摘要: Electro-mechanical switches and memory cells using vertically-disposed nanofabric articles and methods of making the same are described. An electro-mechanical device, includes a structure having a major horizontal surface and a channel formed therein. A conductive trace is in the channel; and a nanotube article vertically suspended in the channel, in spaced relation to a vertical wall of the channel. The article is electro-mechanically deflectable in a horizontal direction toward the conductive trace. Under certain embodiments, the vertically suspended extent of the nanotube article is defined by a thin film process. Under certain embodiments, the vertically suspended extent of the nanotube article is about 50 nanometers or less. Under certain embodiments, the nanotube article is clamped with a conducting material disposed in porous spaces between some nanotubes of the nanotube article. Under certain embodiments, the nanotube article is formed from a porous nanofabric. Under certain embodiments, the nanotube article is electromechanically deflectable into contact with the conductive trace and the contact is either a volatile state or non-volatile state depending on the device construction. Under certain embodiments, the vertically oriented device is arranged into various forms of three-trace devices. Under certain embodiments, the channel may be used for multiple independent devices, or for devices that share a common electrode.

    摘要翻译: 描述了使用垂直布置的纳米制品的机电开关和存储单元及其制造方法。 机电装置包括具有主要水平表面和形成在其中的通道的结构。 通道中有导电迹线; 以及垂直悬挂在所述通道中的与所述通道的垂直壁成间隔开的纳米管制品。 该物品在水平方向上可电导向导电迹线偏转。 在某些实施方案中,纳米管制品的垂直悬浮程度由薄膜工艺限定。 在某些实施方案中,纳米管制品的垂直悬浮程度为约50纳米或更小。 在某些实施例中,纳米管制品被夹持在布置在纳米管制品的一些纳米管之间的多孔空间中的导电材料上。 在某些实施方案中,纳米管制品由多孔纳米纤维形成。 在某些实施例中,取决于器件结构,纳米管制品在机电上可偏转成与导电迹线接触,并且触点是易失性状态或非易失性状态。 在某些实施例中,垂直取向的装置被布置成各种形式的三轨迹装置。 在某些实施例中,信道可以用于多个独立设备,或者可以用于共享公共电极的设备。

    Methods of nanotube films and articles
    130.
    发明授权
    Methods of nanotube films and articles 有权
    纳米管薄膜和制品的方法

    公开(公告)号:US06835591B2

    公开(公告)日:2004-12-28

    申请号:US10128117

    申请日:2002-04-23

    IPC分类号: H01L5140

    摘要: Nanotube films and articles and methods of making the same. A nanotube films produced from a conductive article includes an aggregate of nanotube segments. The nanotube segments contact other nanotube segments to define a plurality of conductive pathways along the article. The nanotube segments may be single walled carbon nanotubes, or multi-walled carbon nanotubes. The various segments may have different lengths and may include segments having a length shorter than the length of the article. The articles so formed may be disposed on substrates, and may form an electrical network of nanotubes within the article itself. Conductive articles may be made on a substrate by forming a nanotube fabric on the substrate, and defining a pattern within the fabric in which the pattern corresponds to the conductive article. The nanotube fabric may be formed by growing the nanotube fabric on the substrate using a catalyst, for example, in which the catalyst is a gas phase catalyst, or in which the catalyst is a metallic gas phase catalyst. The nanotube fabric may be formed by depositing a solution of suspended nanotubes on the substrate. The deposited solution may be spun to create a spin-coating of the solution. The solution may be deposited by dipping the substrate into the solution. The nanotube fabric is formed by spraying an aerosol having nanotubes onto a surface of the substrate.

    摘要翻译: 纳米管薄膜和制作方法和制作方法。 由导电制品制成的纳米管膜包括纳米管段的聚集体。 纳米管片段与其他纳米管片段接触以限定沿物品的多个导电路径。 纳米管段可以是单壁碳纳米管或多壁碳纳米管。 各个片段可以具有不同的长度,并且可以包括长度短于制品的长度的片段。 如此形成的制品可以设置在基底上,并且可以在制品本身内形成纳米管的电网络。 可以在衬底上形成导电制品,在基底上形成纳米管织物,并且在织物内限定图案对应于导电制品的图案。 纳米管织物可以通过使用例如其中催化剂是气相催化剂的催化剂或催化剂是金属气相催化剂在纳米管织物上生长纳米管织物而形成。 可以通过在衬底上沉积悬浮的纳米管溶液来形成纳米管织物。 可以将沉积的溶液纺丝以产生溶液的旋涂。 可以通过将基底浸入溶液中来沉积溶液。 纳米管织物通过将具有纳米管的气溶胶喷射到基底的表面上而形成。