Scanning tunneling charge transfer microscope

    公开(公告)号:US06583412B2

    公开(公告)日:2003-06-24

    申请号:US09811374

    申请日:2001-03-17

    IPC分类号: H01J3700

    摘要: The present invention develops a new type of SPM, a scanning tunneling charge transfer microscope (STCTM). The STCTM is capable of first, detecting the transfer of an ultrasmall amount of charge (single electrons) or current (attoampere) into or out from a surface with atomic resolution and second, simultaneously measuring the electronic response of that surface to the transferred charge. This dual capability can be achieved by appropriately combining the virtues of the STM and a modified EFM. The STM provides the atomic resolution for the charge transfer, while the modified EFM provides the sub-electronic charge sensitivity for the current and charge detection. The STCTM, with sensitivity many orders of magnitude better than with SPM technology currently available, can be used to characterize the properties of molecules, ultrathin oxides, insulator surfaces, and clusters on insulators with atomic resolution.

    Incorporation of dielectric layer onto SThM tips for direct thermal analysis
    82.
    发明授权
    Incorporation of dielectric layer onto SThM tips for direct thermal analysis 失效
    将介电层并入SThM尖端进行直接热分析

    公开(公告)号:US06566650B1

    公开(公告)日:2003-05-20

    申请号:US09664418

    申请日:2000-09-18

    IPC分类号: B01D5944

    摘要: One of the limitations to current usage of scanning thermal microscopes arises when one needs to obtain a thermal map of an electrically biased specimen. Current practice is for the conductive parts of the specimen to be passivated to prevent excessive current leakage between the tip and the conductive sample. The present invention eliminates the need for this by coating the probe's microtip with a layer of insulation that is also a good thermal conductor. Examples of both thermocouple and thermistor based probes are given along with processes for their manufacture.

    摘要翻译: 当需要获得电偏置样本的热图时,会出现当前使用扫描热显微镜的局限性。 目前的做法是使样品的导电部件被钝化,以防止尖端和导电样品之间的过大的电流泄漏。 本发明通过用也是良好热导体的绝缘层涂覆探针的微尖头来消除对此的需要。 给出了热电偶和基于热敏电阻的探针的实例以及其制造方法。

    Scanning probe microscope
    84.
    发明申请
    Scanning probe microscope 失效
    扫描探针显微镜

    公开(公告)号:US20030025498A1

    公开(公告)日:2003-02-06

    申请号:US10109659

    申请日:2002-04-01

    IPC分类号: G01R033/02

    CPC分类号: G01Q70/14 Y10S977/875

    摘要: It is an object to obtain a scanning probe microscope capable of effectively suppressing a reduction in precision in a measurement. A conductive probe (2C) has such a pyramid structure as to be expanded from a tip portion to a bottom surface (a surface on which a cantilever (1) is to be formed) and a semiconductor integrated circuit (12) is formed in a side surface of the conductive probe (2C). An amplifying circuit (12a) to be the semiconductor integrated circuit (12) amplifies an electrical characteristic signal given from the conductive probe (2C) to send the electrical characteristic signal to a signal processor (10) through a conductive cantilever (1C) and a signal cable (9) (FIG. 1).

    摘要翻译: 本发明的目的是获得能够有效地抑制测量精度降低的扫描探针显微镜。 导电探针(2C)具有从尖端部扩大到底面(要形成悬臂(1)的面)的金字塔结构,在半导体集成电路(12)中形成有半导体集成电路 导电探针(2C)的侧表面。 作为半导体集成电路(12)的放大电路(12a)放大从导电探针(2C)给出的电特性信号,通过导电悬臂(1C)将电特性信号发送到信号处理器(10) 信号电缆(9)(图1)。

    Nanotweezers and nanomanipulator
    85.
    发明申请
    Nanotweezers and nanomanipulator 失效
    纳米技术人员和纳米机器人

    公开(公告)号:US20020158480A1

    公开(公告)日:2002-10-31

    申请号:US10009471

    申请日:2001-11-07

    IPC分类号: B25J015/12

    摘要: To provide nanotweezers and a nanomanipulator which allow great miniaturization of the component and are capable of gripping various types of nano-substances such as insulators, semiconductors and conductors and of gripping nano-substances of various shapes. Electrostatic nanotweezers 2 are characterized in that the nanotweezers 2 are comprised of a plurality of nanotubes whose base end portions are fastened to a holder 6 so that the nanotubes protrude from the holder 6, coating films which insulate and cover the surfaces of the nanotubes, and lead wires 10, 10 which are connected to two of the nanotubes 8, 9; and the tip ends of the two nanotubes are freely opened and closed by means of an electrostatic attractive force generated by applying a voltage across these lead wires. Furthermore, by way of forming a piezo-electric film 32 on the surface of the nanotube 9, and the tip ends of the nanotubes are freely opened and closed by expanding and contracting the piezo-electric film, thus allowing any desired nano-substances to be handled regardless of whether the nano-substances are insulators, semiconductors or conductors. Furthermore, if by way of designing three nanotubes so as to be freely opened and closed by an electrostatic system, nano-substances of various shapes such as spherical, rod-form, etc. can be handled. Moreover, a nanomanipulator that is constructed by combining the nanotweezers with a three-dimensional driving mechanism facilitates the gripping, moving and releasing of nano-substances.

    摘要翻译: 提供纳米管和纳米管操纵器,其允许部件的极小化,并且能够夹持各种类型的纳米物质,例如绝缘体,半导体和导体,并且夹持各种形状的纳米物质。 静电纳米针筒2的特征在于,纳米针筒2由多个纳米管组成,其基端部固定在保持器6上,使得纳米管从支架6突出,绝缘并覆盖纳米管表面的涂膜,以及 引线10,10连接到两个纳米管8,9; 并且通过在这些引线上施加电压而产生的静电吸引力自由地打开和闭合两个纳米管的末端。 此外,通过在纳米管9的表面上形成压电膜32,通过使压电膜膨胀收缩来使纳米管的前端自由地开闭,从而使任何所需的纳米物质 无论纳米物质是绝缘体,半导体还是导体,都要进行处理。 此外,如果通过设计三个纳米管以通过静电系统自由地打开和关闭,则可以处理诸如球形,棒状等各种形状的纳米物质。 此外,通过将纳米技术人员与三维驱动机构组合而构成的纳米机械手有利于纳米物质的夹持,移动和释放。

    Method for producing optical fiber having core with sharpened tip
protruding from light-shielding coating
    88.
    发明授权
    Method for producing optical fiber having core with sharpened tip protruding from light-shielding coating 失效
    光纤制造方法,其具有从遮光涂层突出的尖锐尖端的芯

    公开(公告)号:US5908562A

    公开(公告)日:1999-06-01

    申请号:US76880

    申请日:1998-05-12

    摘要: An optical fiber made up of a core for propagating the light and a cladding covering the core for interrupting light propagated within the core. The optical fiber includes a tip formed by sharpening an end of the core in a tapering fashion, a light-shielding coating layer formed on the surface of the tip and an aperture formed by exposing the foremost part of the tip from the light-shielding coating layer to outside. The light-shielding coating layer operates as a light shielding portion for interrupting the light radiated on other than the aperture and light enters or exits only at the aperture and light is propagated in the core as it is repeatedly reflected at a core-cladding boundary and is collected at the tip so as to be radiated via the aperture. The light entering the tip via the aperture is conducted into the core via the tip.

    摘要翻译: 由用于传播光的芯构成的光纤和覆盖芯的包层,用于中断在芯内传播的光。 该光纤包括通过以锥形方式锐化芯的端部而形成的尖端,形成在尖端的表面上的遮光涂层和通过从遮光涂层暴露尖端的最前部而形成的孔 层到外面。 遮光涂层作为遮光部分起作用,用于中断除了孔径之外的光辐射,并且光仅在孔径处进入或离开,并且光在纤芯中传播时,因为它在芯 - 包层边界反复反射, 在尖端处被收集以便经由孔径辐射。 通过孔进入尖端的光通过尖端传导到芯中。

    Scanning probe microscope
    89.
    发明授权
    Scanning probe microscope 失效
    扫描探针显微镜

    公开(公告)号:US5760300A

    公开(公告)日:1998-06-02

    申请号:US848662

    申请日:1997-04-29

    申请人: Hiroshi Kajimura

    发明人: Hiroshi Kajimura

    摘要: A probing apparatus having an elastic body supported by a support and provided with a probe at its free end. The elastic body is disposed in a solution in which a sample is held. The elastic body is forcibly oscillated at its natural frequency by a driving source. A displacement detecting device detects a variation in the oscillation state of the elastic body which takes place when the tip of the probe is placed in the vicinity of the surface of the sample. The detected output from the displacement detecting device is fed to a sample data monitor device to provide a topographic image thereon.

    摘要翻译: 探测装置具有由支撑体支撑并在其自由端设置有探针的弹性体。 弹性体设置在保持样品的溶液中。 弹性体通过驱动源以其固有频率强制振荡。 位移检测装置检测当探针的末端放置在样品表面附近时发生的弹性体的振动状态的变化。 来自位移检测装置的检测到的输出被馈送到样本数据监视器装置以在其上提供地形图像。