By Optical Means (epo) Patents (Class 850/6)
  • Publication number: 20110014378
    Abstract: Devices for leveling an object for patterning a substrate surface, including an array of scanning probe tips, are provided. A device may include a support structure adapted to mount an object, the object having a plurality of protrusions adapted to form a pattern on a surface of a substrate upon contact of the object to the surface; and at least one flexible joint assembly mounted to the support structure and adapted to allow the object to achieve a parallel orientation with respect to the surface upon contact of the object to the surface. Also provided are apparatuses and kits incorporating the devices and methods of making and using the devices and apparatuses.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 20, 2011
    Inventors: John Edward BUSSAN, Sergey V. Rozhok, Vadim Val-Khvalabov, Joseph S. Fragala, Jason R. Haaheim, Michael R. Nelson, Edward R. Solheim, Javad M. Vakil
  • Publication number: 20100257643
    Abstract: A preferred embodiment of the invention provides an ultra-soft atomic force microscope device that has a nanoneedle cantilever that terminates in a smaller diameter nanofiber tip. Deflection of the nanoneedle cantilever is measured directly by a laser Doppler vibrometer. The invention simultaneously provides a very low mass nanoneedle cantilever arm with a very small diameter nanofiber tip, while being able to image the vibration and displacement. An AFM device of the invention simultaneously provides a ultra low mass and soft cantilever, the ability to accurately and directly measure vibration and deflection of the very small diameter nanoneedle cantilever with the laser Doppler vibrometer, and a sharp nanofiber tip that provides sub nanometer resolution.
    Type: Application
    Filed: February 19, 2010
    Publication date: October 7, 2010
    Applicants: UNIVERSITY OF LOUISVILLE RESEARCH FOUNDATION, INC., PURDUE RESEARCH FOUNDATION
    Inventors: Ronald Reifenberger, Arvind Raman, Laura Butler Biedermann, Mehdi M. Yazdanpanah
  • Publication number: 20100235955
    Abstract: A The local probe microscopy apparatus (1) comprises a probe (3) with translation stages (5a, 5b) for controlling the position of the probe (3) relative to a sample surface. The probe (3) has a feedback mechanism (6, 5 7) for maintaining the deflection of the probe and a height measuring system (9) which includes means for compensating for environmental noise. The local probe microscopy apparatus is particularly suitable for use as a wafer inspection tool in a wafer fabrication plant where the inspection tool is liable to be exposed to significant mechanical vibration.
    Type: Application
    Filed: August 4, 2008
    Publication date: September 16, 2010
    Applicant: INFINITESIMA LTD
    Inventor: Andrew Humphris
  • Patent number: 7797757
    Abstract: An atomic force microscopy sensor includes a substrate, a cantilever beam and an electrostatic actuator. The cantilever beam has a proximal end and an opposite distal end. The proximal end is in a fixed relationship with the substrate and the cantilever beam is configured so that the distal end is in a moveable relationship with respect to the substrate. The electrostatic actuator includes a first electrode that is coupled to the cantilever beam adjacent to the proximal end and a spaced apart second electrode that is in a fixed relationship with the substrate. When an electrical potential is applied between the first electrode and the second electrode, the first electrode is drawn to the second electrode, thereby causing the distal end of the cantilever beam to move.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: September 14, 2010
    Assignee: Georgia Tech Research Corporation
    Inventor: Fahrettin Levent Degertekin
  • Publication number: 20100229262
    Abstract: The invention relates to an apparatus and a method for examining a specimen by means of probe microscopy, in particular scanning probe microscopy. The apparatus comprises a probe microscope device which has a specimen holder for holding a specimen to be examined, a measurement probe and a displacement unit which is configured to displace the specimen holder and the measurement probe relative to one another for an examination of the specimen by means of probe microscopy, and comprises a condenser illumination and also an optical system which is arranged downstream of the condenser illumination and is configured to project condenser light, which is emitted by the condenser illumination in a condenser light path, into the region of the specimen holder for optical microscopy of the specimen to be examined, while at least partially maintaining condenser light parameters with which the condenser light is emitted by the condenser illumination.
    Type: Application
    Filed: August 20, 2007
    Publication date: September 9, 2010
    Applicant: JPK INSTRUMENTS AG
    Inventors: Gunnar Sommer, Jorn Kamps
  • Publication number: 20100218286
    Abstract: A microwave microscope including a probe tip electrode vertically positionable over a sample and projecting downwardly from the end of a cantilever. A transmission line connecting the tip electrode to the electronic control system extends along the cantilever and is separated from a ground plane at the bottom of the cantilever by a dielectric layer. The probe tip may be vertically tapped near or at the sample surface at a low frequency and the microwave signal reflected from the tip/sample interaction is demodulated at the low frequency. Alternatively, a low-frequency electrical signal is also a non-linear electrical element associated with the probe tip to non-linearly interact with the applied microwave signal and the reflected non-linear microwave signal is detected at the low frequency. The non-linear element may be semiconductor junction formed near the apex of the probe tip or be an FET formed at the base of a semiconducting tip.
    Type: Application
    Filed: February 16, 2010
    Publication date: August 26, 2010
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Keji Lai, Michael Kelly, Zhi-Xun Shen
  • Publication number: 20100218287
    Abstract: In a scanning probe microscope, a nanotube and metal nano-particles are combined together to configure a plasmon-enhanced near-field probe having an optical resolution on the order of nanometers as a measuring probe in which a metal structure is embedded, and this plasmon-enhanced near-field probe is installed in a highly-efficient plasmon exciting unit to repeat approaching to and retracting from each measuring point on a sample with a low contact force, so that optical information and profile information of the surface of the sample are measured with a resolution on the order of nanometers, a high S/N ratio, and high reproducibility without damaging both of the probe and the sample.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 26, 2010
    Inventors: Toshihiko NAKATA, Masahiro Watanabe, Takashi Inoue, Kishio Hidaka, Makoto Okai, Motoyuki Hirooka
  • Publication number: 20100207039
    Abstract: A method of determining the position of a probe tip. An evanescent electromagnetic field is generated extending beyond an interface boundary between a first medium, having a first refractive index, and a second medium, having a second refractive index which is greater than the first refractive index, the interface boundary extending in a plane. A probe tip is positioned in the evanescent field in the first medium thereby causing propagating electromagnetic radiation to be produced as a result of the disruption of the evanescent field by the probe tip, and at least a portion of the propagating electromagnetic radiation is collected. The spatial intensity distribution of the collected radiation is detected with respect to an image plane. An at least one dimensional position of the probe tip in a probe tip plane is determined from the detected spatial intensity distribution, the probe tip plane being a plane which contains the probe tip and which is substantially parallel to the plane of the interface boundary.
    Type: Application
    Filed: April 9, 2008
    Publication date: August 19, 2010
    Applicant: THE UNIVERSITY OF BRISTOL
    Inventors: Arturas Ulcinas, David John Engledew, Loren Michael Picco, Mervyn John Miles, Massimo Antognozzi
  • Publication number: 20100199393
    Abstract: A probe microscope includes a cantilever having a probe, a displacement detecting optical system, an observation optical system, an objective lens, and a parallel glass. The displacement detecting optical system includes a first light source and a light detecting element. The observation optical system includes a second light source, an image forming lens, and a camera. The objective lens is disposed between the cantilever and the first and second light sources, and is commonly used by the displacement detecting optical system and the observation optical system. The parallel glass is capable of being inserted and retracted freely between the cantilever and the objective lens to adjust a focal point of the objective lens.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 5, 2010
    Applicant: MITUTOYO CORPORATION
    Inventors: Yoshimasa Suzuki, Kazuhiko Kawasaki, Satoshi Koga
  • Patent number: 7770231
    Abstract: A method and apparatus are provided that have the capability of rapidly scanning a large sample of arbitrary characteristics under force control feedback so has to obtain a high resolution image. The method includes generating relative scanning movement between a probe of the SPM and a sample to scan the probe through a scan range of at least 4 microns at a rate of at least 30 lines/sec and controlling probe-sample interaction with a force control slew rate of at least 1 mm/sec. A preferred SPM capable of achieving these results has a force controller having a force control bandwidth of at least closed loop bandwidth of at least 10 kHz.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: August 3, 2010
    Assignee: Veeco Instruments, Inc.
    Inventors: Craig Prater, Chanmin Su, Nghi Phan, Jeffrey M. Markakis, Craig Cusworth, Jian Shi, Johannes H. Kindt, Steven F. Nagle, Wenjun Fan
  • Publication number: 20100180355
    Abstract: A displacement sensor employs an electromagnetic radiation source that generates a beam of electromagnetic radiation for measuring a feature of an object. The displacement sensor includes a displacement probe, a multi-dimensional diffraction grating and a plurality of photon detectors. A reflection surface, which is changed when the probe interacts with the object, interacts with the beam from the electromagnetic radiation source and reflects a beam from the reflection surface. The multi-dimensional diffraction grating interacts with the reflected beam and generates a pattern of diffracted beams. Each photon detector senses a different diffracted beam, thereby providing information about the state of the probe.
    Type: Application
    Filed: March 24, 2010
    Publication date: July 15, 2010
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Zhong L. Wang, William L. Hughes, Brent A. Buchine
  • Publication number: 20100175155
    Abstract: Detection and localization of stretching and rupture of targets (e.g., macromolecules) is achieved using time-varying tip-sample force measurements in a dynamic-mode atomic force microscope. The detection and localization is achieved with an independent force sensor that can detect and distinguish stretching and rupture forces acting on a sensor device as the tip of the sensor device traverses a surface, wherein the stretching and rupture forces are temporally distinct from forces between the tip and the substrate.
    Type: Application
    Filed: January 6, 2010
    Publication date: July 8, 2010
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventor: Ozgur Sahin
  • Publication number: 20100149545
    Abstract: Apparatus and method for measuring the deformation of a tethered or untethered cantilever by projecting a radiation beam onto the cantilever, detecting an interference pattern reflected from or transmitted through the cantilever, and calculating the deformation of the cantilever by measuring the intensity variation within at least a portion of the interference pattern.
    Type: Application
    Filed: April 17, 2008
    Publication date: June 17, 2010
    Applicant: University College London
    Inventors: Gabriel Aeppli, Benjamin Dueck
  • Publication number: 20100132075
    Abstract: Provided is a self displacement sensing cantilever, including: a cantilever (4) that has a probe (2) at its tip and has a distal end portion (3) at its distal end; a displacement detecting portion (5) that is provided to the cantilever (4), for detecting a displacement of the cantilever (4); an electrode portion (6) that is connected to the displacement detecting portion (5) and is communicated with the distal end portion (3); and an insulation film (7) that is formed over at least one of the electrode portion (6) and the displacement detecting portion (5) of the cantilever (4), in which the insulation film (7) is applied a coating of an arbitrary functional material (8). As a result, measurement with a scanning probe microscope may be performed at the same time as projecting light.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 27, 2010
    Inventors: Masato Iyoki, Naoya Watanabe
  • Publication number: 20100088787
    Abstract: A pump probe measuring device (1) includes an ultrashort optical pulse laser generator (11) for generating a first ultrashort optical pulse train, which becomes a pump light, and a second ultrashort optical pulse train, which becomes a probe light, a delay time adjusting unit (15) for adjusting a delay time between ultrashort optical pulse trains, a first pulse picker and a second pulse picker (13, 14) for accepting each of the first and the second ultrashort optical pulse trains and allowing only one pulse to be transmitted at an arbitrary repetition periodicity, thus reducing the effective repetition frequency of the optical pulses, a delay time modulation unit (10) for periodically changing a position through which pulses are transmitted by the first and the second pulse pickers (13, 14), an irradiation optical system (16) for applying pump light and probe light to a sample (19), a measuring unit (20) for detecting probe signals from a sample (19), and a lock-in amplifier (18).
    Type: Application
    Filed: November 28, 2007
    Publication date: April 8, 2010
    Inventors: Hidemi Shigekawa, Osamu Takeuchi
  • Patent number: 7675034
    Abstract: An optical microscope slide in a charged particle instrument such as an electron microscope or a focused ion beam instrument. Conventional microscope slides are not fit for use in an electron microscope as they are insulating and would thus charge when viewed in an electron microscope due to the impinging beam of charged particles. However, microscope slides exist that show a coating with a conductive layer of e.g. Indium Tin Oxide (ITO). These microscope slides are normally used for heating the object mounted on the slide by passing a current through the conductive layer. Experiments show that these microscope slides can be used advantageously in a charged particle instrument by connecting the conductive layer to e.g. ground potential, thereby forming a return path for the impinging charged particles and thus avoiding charging. The invention further relates to a charged particle instrument that is further equipped with an optical microscope.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: March 9, 2010
    Assignee: FEI Company
    Inventor: Jacob Simon Faber
  • Publication number: 20100005552
    Abstract: A main object of the present claimed invention is to provide a scanning probe microscope that can recognize a relative position between multiple probes accurately.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 7, 2010
    Inventors: Tomonobu Nakayama, Seiji Higuchi
  • Patent number: 7631547
    Abstract: A scanning probe apparatus for obtaining information of a sample or processing the sample with relative movement between the sample and the apparatus includes a sample stage for holding the sample, and a drive stage with a probe, a cantilever supporting the probe, a cantilever holding member for holding the cantilever, and a drive element for driving the probe in three directions perpendicular to each other. In addition, a movable portion surrounds the drive element and is positioned outside of the drive element, with the movable portion movable in a direction in which an inertial force generated during movement of the probe is canceled. The drive stage includes an optical path, through which light passes, provided inside of the drive stage.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: December 15, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuki Yoshimatsu, Takao Kusaka, Susumu Yasuda, Junichi Seki
  • Patent number: 7608842
    Abstract: Methods of moving or vibrating cantilevered optical fibers of scanning fiber devices are disclosed. In one aspect, a method may include vibrating the cantilevered optical fiber at an initial frequency that is substantially displaced from a resonant frequency of the cantilevered optical fiber. Then, the frequency of vibration of the cantilevered optical fiber may be changed over a period of time toward the resonant frequency. Light may be directed through an end of the cantilevered optical fiber while the cantilevered optical fiber is vibrated.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: October 27, 2009
    Assignee: University of Washington
    Inventor: Richard S. Johnston
  • Publication number: 20090235396
    Abstract: An apparatus and method for providing image acquisition and/or image display in a limited region of interest (ROI). The apparatus comprises a micro-electro-mechanical system (MEMS), preferably integrating a light source, a cantilever, a lens, an actuator, a light detector, and a position sensor. The light source provides light for illuminating the ROI, displaying an image, providing a therapy, and/or performing other functions. The cantilever comprises a resin waveguide with a fixed end attached to a substrate that supports many or all other components. A free end of the cantilever is released from the substrate during fabrication and includes the lens. The actuator scans the free end in orthogonal directions to illuminate the ROI or display an image. The position sensors detect the position of the free end for control. The light detector receives light backscattered from the ROI separate from, or at the fixed end of the cantilever.
    Type: Application
    Filed: May 1, 2009
    Publication date: September 17, 2009
    Applicant: University of Washington
    Inventors: Wei-Chih Wang, Eric J. Seibel, Per G. Reinhall, Mark E. Fauver, Chris M. Brown