Scanning Or Positioning Arrangements, I.e., Arrangements For Actively Controlling The Movement Or Position Of The Probe (epo) Patents (Class 850/1)
  • Patent number: 8370961
    Abstract: An atomic force microscope (AFM) apparatus for determining a topography of a sample surface is disclosed. The AFM apparatus comprises: a controller having a controller frequency response and being configured to provide a controller output signal. The controller comprises an integrator that provides an integrator output signal, and a filter block. The AFM apparatus also comprises a physical system having a physical system response and being configured to receive the controller output signal and to provide a probe height in response to the controller output signal. The physical system comprises an actuator configured to maintain a deflection of a probe tip relative to the sample surface. The deflection being is indicated by a deflection signal, and the filter block of the controller provides an inverse of the physical system response, such that the probe height is substantially equal to the integrator output signal.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 5, 2013
    Assignee: Agilent Technologies, Inc.
    Inventors: Christopher Ryan Moon, Daniel Y. Abramovitch
  • Patent number: 8359661
    Abstract: Applying an alternating current to a magnetic head as a sample generates an alternate-current magnetic field from the sample. A cantilever includes a probe that is made of a magnetic material or is coated with a magnetic material. The cantilever is displaced when it approaches the sample. Detecting the displacement of the cantilever detects distribution of the magnetic field from the sample. It is possible to fast measure distribution of the magnetic field generated from the sample when a frequency of the alternating current applied to the sample differs from a resonance frequency of the cantilever.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: January 22, 2013
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takehiro Tachizaki, Masahiro Watanabe, Hideaki Sasazawa, Minoru Yoshida, Tsuneo Nakagomi, Teruaki Tokutomi
  • Publication number: 20130014295
    Abstract: A method for positioning a tip of an atomic force microscope relative to a intracellular target site in a cell is provided. In general terms, the method comprises: a) positioning a fluorescent tip of an atomic force microscope over a cell comprising a fluorescent intracellular target site so that said tip is above target site; b) moving the tip toward said target site while obtaining images of the distal end of said tip and/or the target site using a fluorescence microscope; and c) arresting the movement of the tip when the target site and the distal end of the tip are both in focus in the fluorescence microscope. A microscope system for performing the method is also provided.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Inventors: Nazumi Alice Yamada, Bo U. Curry, Chriatian Rankl
  • Publication number: 20120331592
    Abstract: Interatomic forces are measured with subatomic lateral resolution by in situ calibrated non-contact and passively thermal drift compensated atomic force microscopy in aqueous or generally liquidous environment; interatomic forces acting between distinct electronic orbitals of front-most tip atom and opposing sample atom can be quantitatively measured with subatomic lateral resolution. Calibration standard is a CaCO3-crystal, which undergoes a well defined pressure induced phase transition from the calcite to the aragonite crystal lattice structure providing an accurate independent force anchor point for the AFM's force versus distance curve. Furthermore, an independent actual tip-sample-distance d calibration is obtained by directly observing oscillatory (steric) solvation forces originating simply from packing effects of the liquid particles at very small tip-sample separations d.
    Type: Application
    Filed: September 8, 2011
    Publication date: December 27, 2012
    Inventor: Frank Michael Ohnesorge
  • Patent number: 8341760
    Abstract: An atomic force microscope (AFM) (1) is one type of SPM, and detects a resonance frequency shift as an amount of interaction between a probe and a sample. The AFM (1) performs distance modulation control while performing feedback control of a probe-sample distance so as to keep the amount of interaction constant. The distance modulation control varies the probe-sample distance at a distance modulation frequency higher than a response speed of the feedback control. The AFM (1) further acquires the interaction amounts detected during the variation of the probe-sample distance by the distance modulation control while performing relative scanning between the probe and the sample, and detects a distribution of the interaction amounts in a three-dimensional space having a dimension within a scanning range and a thickness within a variation range of the probe-sample distance.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: December 25, 2012
    Assignees: National University Corporation
    Inventors: Takeshi Fukuma, Yasumasa Ueda
  • Patent number: 8332961
    Abstract: Tips including a platinum silicide at an apex of a single crystal silicon tip are provided herein. Also, techniques for creating a tip are provided. The techniques include depositing an amount of platinum (Pt) on a single crystal silicon tip, annealing the platinum and single crystal silicon tip to form a platinum silicide, and selectively etching the platinum with respect to the formed platinum silicide.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: December 11, 2012
    Assignee: International Business Machines Corporation
    Inventors: Harish Bhaskaran, Michel Despont, Ute Drechsler, Abu Sebastian
  • Patent number: 8327460
    Abstract: The present invention allows simple and sensitive detection of microimpurities, microdefects, and corrosion starting points which may be present in a material. A probe microscope has a function to sense ions diffused from a specimen in a liquid. A probe is caused to scan over a predetermined range on a specimen. Then, the probe is fixed to a particular position in a liquid so as to set the distance between the specimen and the probe to a given value at which the microstructure of the specimen surface cannot be observed. Thereafter, one of the current between the probe and a counter electrode and the potential between the probe and a reference electrode is controlled, and the other of the current and potential which varies in accordance with the control is measured. Thus, ions diffused from the specimen are sensed.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: December 4, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Kyoko Honbo, Katsumi Mabuchi, Motoko Harada
  • Patent number: 8321959
    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 9, 2010
    Date of Patent: November 27, 2012
    Assignee: Georgia Tech Research Corporation
    Inventor: Fahrettin Levent Degertekin
  • Patent number: 8321960
    Abstract: A portion of light emitted from a laser source (11) for detecting a displacement of a cantilever (4) is extracted by a half mirror (20) and guided onto a photodetector (21) having a light-receiving surface divided into four sections. When the direction of the emitted light is inclined due to a change in the ambient temperature or other factors, the light spot formed on the light-receiving surface of the photodetector (21) moves. Accordingly, the amount and direction of the inclination of the emission direction can be recognized from the amount and direction of the movement of the light spot. A drive amount calculator (22) calculates a drive amount according to the amount and direction of the inclination, and operates an actuator (23) to rotate the laser source (11) around each of the Y and Z axes. This operation compensates for the inclination of the direction of the emitted light and thereby prevents the inclination from being falsely recognized as an irregularity on the sample surface.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: November 27, 2012
    Assignee: Shimadzu Corporation
    Inventor: Takeshi Ito
  • Patent number: 8312560
    Abstract: The invention relates to a multifunctional scanning probe microscope comprising: a base (1); a preliminary approach unit (3) movably mounted on the base (1); a piezo-scanner (4) disposed on the preliminary approach unit (3); an object holder (5) disposed on the piezo-scanner (4); a sample (6) which comprises a measuring area (M) and is attached to the piezo-scanner (4) with the aid of the object holder (5); a platform (9) attached to the base (1) opposite the sample (6); an analyzer mounted on the platform (9) and comprising a first measuring head (13) which is oriented towards the sample (6) and is adapted for probing the measuring area (M) of the sample (6).
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: November 13, 2012
    Assignee: NT-MDT Service & Logistics Ltd.
    Inventors: Andrey Bykov, Vladimir Kotov, Viktor Bykov
  • Patent number: 8296860
    Abstract: An atomic force microscopy (AFM) method includes a scanning probe that scans a surface of a structure to produce a first structure image. The structure is then rotated by 90° with respect to the scanning probe. The scanning probe scans the surface of the structure again to produce a second structure image. The first and second structure images are combined to produce best fit image of the surface area of the structure. The same method is used to produce the best fit image of a flat standard. The best fit image of the flat standard is subtracted from the best fit image of the structure to obtain a true topographical image in which Z direction run out error is substantially reduced or eliminated.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: October 23, 2012
    Assignee: Seagate Technology LLC
    Inventors: Huiwen Liu, Lin Zhou, Dale Egbert, Jonathan Arland Nelson, Peter Gunderson
  • Patent number: 8296856
    Abstract: A control system (32, 75) is for use with a scanning probe microscope of a type in which measurement data is collected at positions within a scan pattern described as a probe and sample are moved relative to each other. The control system is used in conjunction with a position detection system (34) that measures the position of at least one of the probe and sample such that their relative spatial location (x, y) is determined. Measurement data may then be correlated with empirically-determined spatial locations in constructing an image. The use of empirical location data means that image quality is not limited by the ability of a microscope scanning system to control mechanically the relative location of probe and sample.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: October 23, 2012
    Assignee: Infinitesima Ltd.
    Inventors: Andrew Humphris, David Catto
  • Patent number: 8296857
    Abstract: The piezo-electric actuator (1) to oscillate the probe of a scanning probe microscope is arranged in the feedback branch (3) of an analog amplifier (4). A current source (10) is provided for feeding a defined alternating current to the input of the amplifier (4). The amplifier (4) strives to adjust the voltage over the actuator (1) such that the current from the current source (10) flows through the actuator (1). As the current through the actuator (1) is proportional to its deflection, this design allows to run the actuator at constant amplitude without the need of complex feedback loops.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: October 23, 2012
    Assignee: Specs Zürich GmbH
    Inventor: Jörg Rychen
  • Publication number: 20120266336
    Abstract: A controller for cantilever-based instruments, including atomic force microscopes, molecular force probe instruments, high-resolution profilometers and chemical or biological sensing probes. The controller samples the output of the photo-detector commonly used to detect cantilever deflection in these instruments with a very fast analog/digital converter (ADC). The resulting digitized representation of the output signal is then processed with field programmable gate arrays and digital signal processors without making use of analog electronics. Analog signal processing is inherently noisy while digital calculations are inherently “perfect” in that they do not add any random noise to the measured signal. Processing by field programmable gate arrays and digital signal processors maximizes the flexibility of the controller because it can be varied through programming means, without modification of the controller hardware.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 18, 2012
    Applicant: ASYLUM RESEARCH CORPORATION
    Inventors: Roger Proksch, Jason Cleveland, Dan Bocek, Todd Day, Mario B. Viani, Clint Callahan
  • Patent number: 8288740
    Abstract: A method for making a specimen assembly for atom probe analysis in an energetic-beam instrument includes milling a post near a region of interest in a sample in the energetic-beam instrument, so that the post has a free end. The probe tip of a nano-manipulator probe shaft is attached to the free end of the post and the post is cut free from the sample to form a rough specimen, so that the region of interest in the rough specimen is exposed at approximately the location where the post is cut from the sample. A specimen assembly form is provided having an open area inside its perimeter. The probe shaft bearing the specimen is joined to the specimen assembly form, so that the region of interest in the rough specimen is located in the open area. Thereafter, the probe shaft can be cut off outside the perimeter of the specimen assembly form, and the specimen conveniently held and sharpened for atom probe analysis. Specimen assembly forms made by the method are also disclosed.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: October 16, 2012
    Assignee: Omniprobe, Inc.
    Inventor: Gonzalo Amador
  • Patent number: 8291510
    Abstract: An apparatus for atomic force microscopy (AFM) comprises a first actuator configured to move a cantilever along an axis; a second actuator configured to move the cantilever along the axis; an amplifier; and a crossover network connected between the amplifier, and the first actuator and the second actuator. The crossover network is adapted to provide a first drive signal to the first actuator over a first frequency range and to provide a second drive signal to the second actuator over a second frequency range.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: October 16, 2012
    Assignee: Agilent Technologies, Inc.
    Inventors: Dale W. Schroeder, Richard P. Tella
  • Publication number: 20120260374
    Abstract: Provided are atomic force microscope probes, methods for making probes for use in atomic force microscopes and systems using such probes. The probes include at least a body portion and a cantilever portion. The cantilever portion may include a first surface and a second surface opposite the first surface. The cantilever portion further includes a first material arranged on the first surface, such that the cantilever portion twists about a center axis of the cantilever portion when the cantilever portion is heated. The first material may be arranged symmetrically or non-symmetrically on a portion of the first surface, or it may be arranged non-uniformly over the first surface. The cantilever portion of the probe may also include a second material arranged on the second surface of the cantilever portion. The first and second materials have a different thermal expansion than the material forming the cantilever portion.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Inventor: Michael E. MCCONNEY
  • Publication number: 20120227138
    Abstract: Provided are a displacement detection mechanism for a cantilever which does not use an optical cantilever method or self-detection type displacement detection, and a scanning probe microscope using the same. A cantilever displacement detector constituted of an LC resonator and an F-V converter detects a change of capacitance between a cantilever and a sample surface so that a displacement of the cantilever can be detected. Thus, shape measurement and physical property measurement can be performed in a state in which light is blocked. Further, a change of a sample shape and physical property information can be measured between presence and absence of the light.
    Type: Application
    Filed: March 1, 2012
    Publication date: September 6, 2012
    Inventor: Ryusuke HIROSE
  • Patent number: 8261368
    Abstract: Devices for performing nanofabrication are provided which provide small volume reaction space and high reaction versatility. A device may include a reaction chamber adapted for nanoscale modification of a substrate and vacuum conditions; a scanning probe tip assembly enclosed within the reaction chamber; a first port coupled to the reaction chamber for delivering a gas; a second port coupled to the reaction chamber for applying a vacuum; and a substrate assembly insertedly mounted to the reaction chamber. The reaction chamber may include a body having one or more flexible walls and one or more supports to prevent the reaction chamber from collapsing under a vacuum. The device may further include an electrical conduit for coupling the tips of the scanning probe tip assembly to electrical components outside the reaction chamber. Also provided are apparatuses incorporating the devices and methods of using the devices and apparatuses.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: September 4, 2012
    Assignee: NanoInk, Inc.
    Inventors: John Edward Bussan, Michael R. Nelson, Joseph S. Fragala, Albert K. Henning, Jeffrey R. Rendlen
  • Patent number: 8256017
    Abstract: A calibration leveling system and method are provided which improve printing and imaging at the nanoscale including improved tip-based deposition and nanolithography. The system can include a scanning probe instrument having a video camera with an adjustable lens. The scanner can be coupled to a one or two dimensional array of cantilevers comprising cantilever tips for imaging or printing. The scanning probe instrument has one or more motors for controlling the scanner in the z-axis. The z-axis motors position the scanner so that the cantilever tips are in a level orientation relative to the surface of a substrate. Once the cantilever tips are level with the substrate, the positions of the z-axis motors can be recorded for future reference.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: August 28, 2012
    Assignee: NanoInk, Inc.
    Inventor: Jason Haaheim
  • Publication number: 20120204295
    Abstract: A high-bandwidth SPM tip scanner includes an objective that is vertically movable within the scan head to increase the depth of focus for the sensing light beam. Movable optics also are preferably provided to permit targeting of the sensing light beam on the SPM's probe and to permit the sensing light beam to track the probe during scanning. The targeting and tracking permit the impingement of a small sensing light beam spot on the probe under direct visual inspection of focused illumination beam of an optical microscope integrated into the SPM and, as a result, permits the use of a relatively small cantilever with a commensurately small resonant frequency. Images can be scanned on large samples having a largest dimension exceeding 7 mm with a resolution of less than 1 Angstrom and while scanning at rates exceeding 30 Hz.
    Type: Application
    Filed: March 30, 2012
    Publication date: August 9, 2012
    Applicant: Bruker Nano, Inc.
    Inventors: Nghi Phan, Craig Cusworth, Craig Prater
  • Patent number: 8239968
    Abstract: An atomic force microscopy system includes an imaging probe having a first thermal displacement constant and a sample placement surface. At least a portion of the sample placement surface has a second thermal displacement constant. The sample placement surface is spaced apart from the imaging probe at a predetermined displacement. The sample placement surface is configured so that the second thermal displacement constant matches the first thermal displacement constant so that when the imaging probe and the sample placement surface are subject to a predetermined temperature, both the portion of the sample placement surface and the imaging prove are displaced by a same distance.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: August 7, 2012
    Assignee: Georgia Tech Research Corporation
    Inventors: Hamdi Torun, Fahrettin L. Degertekin, Ofer Finkler
  • Patent number: 8220066
    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: Grant
    Filed: August 4, 2008
    Date of Patent: July 10, 2012
    Assignee: Infinitesima Ltd.
    Inventor: Andrew Humphris
  • Patent number: 8217367
    Abstract: A scanner device is provided which enables high-frequency scanning and can increase the speed of a scanning probe microscope. A scanner device (1) used for a scanning probe microscope includes a Z actuator (7) which scans an object to be scanned in a scanning direction, and a Z actuator holder (11) which holds the Z actuator (7). The Z actuator holder (11) holds the Z actuator (7) at a plurality of holding line parts which extend in the scanning direction and are separated from each other. For example, the Z actuator (7) has a rectangular cross-section, and the four edges of the Z actuator (7) are held by the Z actuator holder (11). The Z actuator (7) is pressed into a holding hole (29) of the Z actuator holder (11).
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: July 10, 2012
    Assignee: National University Corporation Kanazawa University
    Inventors: Takeshi Fukuma, Toshio Ando, Yasutaka Okazaki
  • Patent number: 8205487
    Abstract: A scanning probe microscope and method of operation for monitoring and assessing proper tracking between the tip and sample, as well as automating at least some aspects of AFM setup previously done manually. Preferably, local slopes corresponding to the acquired data are compared to determine a tracking metric that is self-normalizing.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: June 26, 2012
    Assignee: Bruker Nano, Inc.
    Inventors: Alan F. Rice, Lin Huang
  • Patent number: 8209766
    Abstract: A scanning probe microscope tilts the scanning direction of a z-scanner by a precise amount and with high repeatability using a movable assembly that rotates the scanning direction of the z-scanner with respect to the sample plane. The movable assembly is moved along a curved guide by a rack-and-pinion drive system and has grooves that engage with corresponding ceramic balls formed on a stationary frame to precisely position the movable assembly at predefined locations along the curved guide. The grooves are urged against the ceramic balls via a spring force and, prior to movement of the movable assembly, a pneumatic force is applied to overcome the spring force and disengage the grooves from the ceramic balls.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: June 26, 2012
    Assignee: Park Systems Corp.
    Inventors: Sang-il Park, Sang Han Chung, Byoung-Woon Ahn
  • Patent number: 8205488
    Abstract: A controller for cantilever-based instruments, including atomic force microscopes, molecular force probe instruments, high-resolution profilometers and chemical or biological sensing probes. The controller samples the output of the photo-detector commonly used to detect cantilever deflection in these instruments with a very fast analog/digital converter (ADC). The resulting digitized representation of the output signal is then processed with field programmable gate arrays and digital signal processors without making use of analog electronics. Analog signal processing is inherently noisy while digital calculations are inherently “perfect” in that they do not add any random noise to the measured signal. Processing by field programmable gate arrays and digital signal processors maximizes the flexibility of the controller because it can be varied through programming means, without modification of the controller hardware.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: June 26, 2012
    Assignee: Asylum Research Corporation
    Inventors: Roger Proksch, Jason Cleveland, Dan Bocek, Todd Day, Mario B. Viani, Clint Callahan
  • Patent number: 8205268
    Abstract: Improved actuation device useful in direct-write nanolithography and imaging including use of a pivot point for downward deflection of a cantilever with long travel path. A device comprising at least one holder, at least one cantilever, an extension of the said cantilever wherein the extension is integrated with an actuator, wherein the cantilever is adapted for actuated movement. The actuator can be electrostatic, thermal, or piezoelectric. The cantilever can comprise a tip, and material can be transferred from the tip to a surface.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: June 19, 2012
    Assignee: NanoInk, Inc.
    Inventor: Raymond Roger Shile
  • Publication number: 20120151637
    Abstract: The present invention provides a fast-operating and stable scanning probe microscope configured to detect the interaction between a probe and a sample to avoid generation of a harmonic component. An oscillation circuit (31) generates an excitation phase signal indicative of the phase of an excitation signal. An excitation signal generation circuit (33) generates an excitation signal from the excitation phase signal. A complex signal generation circuit (35) generates a complex signal from a displacement signal. A vector calculation circuit (37) calculates the argument of the complex signal. A subtracting phase comparator (39) compares the argument with the phase of the excitation phase signal by subtraction. The amount of the interaction between a probe device and a sample is obtained using the subtracting phase comparator (39). The result of the comparison carried out by the subtracting phase comparator (39) may be output as a difference in phase between the displacement signal and the excitation signal.
    Type: Application
    Filed: July 16, 2009
    Publication date: June 14, 2012
    Applicant: NATIONAL UNIVERSITY CORP. KANAZAWA UNIVERSITY
    Inventors: Takeshi Fukuma, Yuji Mitani
  • Publication number: 20120137394
    Abstract: Techniques for atomic force microscope manipulation of living cells include functionalizing a nanoscale tip of a microscale cantilever with a first ligand for a first receptor associated with a surface of a first type of cell. The method further comprises, controlling the cantilever to cause the first ligand on the nanoscale tip to contact the first receptor on a surface of a living cell of the first type in a particular temporal pattern to induce a target response by the living cell. Other techniques for controlling an atomic force microscope comprising a nanoscale tip include controlling the cantilever to cause the nanoscale tip to contact a living cardiomyocyte at a predetermined pressure. The cantilever is also controlled to turn off vertical deflection feedback after contacting the cardiomyocyte and collecting deflection data that indicates a time series of nanoscale vertical deflections of the microscale cantilever caused by the living cardiomyocyte.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 31, 2012
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Manish J. Butte, Marc Amor Bruce, Jianwei Liu
  • Publication number: 20120131702
    Abstract: An improved mode of AFM imaging (Peak Force Tapping (PFT) Mode) uses force as the feedback variable to reduce tip-sample interaction forces while maintaining scan speeds achievable by all existing AFM operating modes. Sample imaging and mechanical property mapping are achieved with improved resolution and high sample throughput, with the mode being workable across varying environments, including gaseous, fluidic and vacuum. Ease of use is facilitated by eliminating the need for an expert user to monitor imaging.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 24, 2012
    Applicant: BRUKER NANO, INC.
    Inventors: Jian Shi, Yan Hu, Shuiqing Hu, Ji Ma, Chanmin Su
  • Publication number: 20120124706
    Abstract: A scanning probe microscope includes: a first and second probes for scanning a sample while maintaining the distance to the sample surface; crystal oscillators holding each of the first and second probes; and a modulation oscillator for providing the first probe with a vibration of a specific frequency which is different from the resonant frequency of each crystal oscillator. A control unit monitors the vibration of the specific frequency of the first and second probes, detects proximity of the first probe and the second probe to each other based on the change of the specific frequencies, and controls the drive of the first and second probes.
    Type: Application
    Filed: June 21, 2010
    Publication date: May 17, 2012
    Applicant: KYOTO UNIVERSITY
    Inventors: Katsuhito Nishimura, Yoichi Kawakami, Mitsuru Funato, Akio Kaneta, Tsuneaki Hashimoto
  • Patent number: 8181267
    Abstract: To provide a scanning probe microscope wherein the scanning means is not damaged by fluids, the scanning probe microscope 30 comprises a cantilever support part 2 for supporting a cantilever 1; displacement measurement parts 3, 4, 5 and 6 for measuring the displacement of the cantilever 1; a specimen container 11 comprising sidewalls 19 and bottom surface 18 and containing a fluid 10 and a specimen S; a carrying stage 40 on which the specimen container 11 is placed; and a scanning means 7 for moving and scanning the carrying stage 40. While the cantilever 1 is immersed in the fluid 10 that is contained in the specimen container 11, the carrying stage 40 is moved, and the displacement of the cantilever 1 is measured. The scanning probe microscope 30 further comprises a ring-shaped protective mat 50 that is capable of absorbing the fluid 10. A mounting mechanism 43 is formed on the outer peripheral surface of the carrying stage 40 for removably attaching the protective mat 50 by its inner peripheral area.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: May 15, 2012
    Assignee: Shimadzu Corporation
    Inventors: Kanji Kobayashi, Hideo Nakajima
  • Patent number: 8166567
    Abstract: A high-bandwidth SPM tip scanner is provided that additionally includes an objective that is vertically movable within the scan head to increase the depth of focus for the sensing light beam. Movable optics also are preferably provided to permit targeting of the sensing light beam on the SPM's probe and to permit the sensing light beam to track the probe during scanning. The targeting and tracking permit the impingement of a small sensing light beam spot on the probe under direct visual inspection of focused illumination beam of an optical microscope integrated into the SPM and, as a result, permits the use of a relatively small cantilever with a commensurately small resonant frequency. A high-bandwidth tip scanner constructed in this fashion has a fundamental resonant frequency greater than greater than 500 Hz and a sensing light beam spot minor diameter of less than 10 ?m.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: April 24, 2012
    Assignee: Bruker Nano, Inc.
    Inventors: Nghi Phan, Craig Cusworth, Craig Prater
  • Patent number: 8160848
    Abstract: A sample atomic configuration creation part in a control section creates the atomic arrangement data of a sample, and a sample surface height calculation part calculates a sample surface height for every mesh. A probe profile creation part creates the atomic arrangement data of a probe, and a probe surface height calculation part calculates the height of the probe surface for every mesh. A probe scanning part supplies the coordinate of a scanning start position in the scanning range to a collision height specification part. The collision height specification part calculates the distance between the sample surface and the probe in each mesh. Calculation of this distance is repeated for all meshes of the probe at the coordinate of this measuring position.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: April 17, 2012
    Assignees: Mizuho Information & Research Institute, Inc., Waseda University
    Inventors: Naoki Watanabe, Masaru Tsukada, Katsunori Tagami
  • Patent number: 8156568
    Abstract: This invention addresses a contact mode hybrid scanning system (HSS), which can be used for measuring topography. The system consists of a cantilever or a cantilever array, a scanning stage, a light source, and instrumentation to synchronize and control the individual components. Detection of the cantilever's movement is achieved by directly measuring the change in disposition of the cantilever including its height, rotation at one or more points on the cantilever thereby providing a partial three-dimensional reconstruction without the need for actuating the cantilever. This is achieved by employing a displacement meter such as a triangulation meter or a confocal meter.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: April 10, 2012
    Assignee: Picocal, Inc.
    Inventors: Angelo Gaitas, Yogesh B. Gianchandani
  • Publication number: 20120079632
    Abstract: Scanning hall probe microscopy is used to measure 3 components of the magnetic field vector at nanometer resolution by connecting of Hall probe to the end of the piezo scanner, then gluing of the sample to the sample holder, thereafter positioning of the SHPM head under the optical microscope with approximately X40 magnification, then moving back of the slider puck around approximately 30 steps or moving the sensor or sample back by suffient amount using motors, piezo or other positioner such that signal decays to negligible levels; thereafter setting the temperature of cryostat or to desired temperature, then offset nulling of the Hall sensor in gradiometer or normal conditions, and finally setting of the scan area, speed, resolution and the acquisition channels through SPM control program.
    Type: Application
    Filed: December 7, 2011
    Publication date: March 29, 2012
    Inventors: Ahmet Oral, Munir Dede, Rizwan Arkam
  • Publication number: 20120079630
    Abstract: Methods and apparatus are provided herein for time-resolved analysis of the effect of a perturbation (e.g., a light or voltage pulse) on a sample. By operating in the time domain, the provided method enables sub-microsecond time-resolved measurement of transient, or time-varying, forces acting on a cantilever.
    Type: Application
    Filed: September 14, 2011
    Publication date: March 29, 2012
    Applicant: University of Washington through its Center for Commercialization
    Inventors: David Ginger, Rajiv Giridharagopal, David Moore, Glennis Rayermann, Obadiah Reid
  • Publication number: 20120079631
    Abstract: Apparatus and techniques for extracting information carried in higher eigenmodes or harmonics of an oscillating cantilever or other oscillating sensors in atomic force microscopy and related MEMs work are described. Similar apparatus and techniques for extracting information using contact resonance with multiple excitation signals are also described.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Applicant: ASYLUM RESEARCH CORPORATION
    Inventors: Roger Proksch, Roger C. Callahan
  • Patent number: 8141168
    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: Grant
    Filed: July 27, 2007
    Date of Patent: March 20, 2012
    Assignees: National Institute for Materials Science, Horiba, Ltd.
    Inventors: Tomonobu Nakayama, Seiji Higuchi
  • Publication number: 20120066799
    Abstract: A method for operating a scanning probe microscope at elevated scan frequencies has a characterization stage of sweeping a plurality of excitation frequencies of the vertical displacement of the scanning element; measuring the value attained by the reading parameter at the excitation frequencies; and identifying plateau regions of the response spectrum of the reading parameter. The reading parameter variation is limited within a predetermined range over a predefined frequency interval, thereby defining corresponding fast scanning frequency windows in which the microscope assembly is sufficiently stable to yield a lateral resolution comparable to the one obtained during slow measurements. The measurement stage includes driving the scanning element along at least a scanning trajectory over the surface of the specimen at a frequency selected among the frequencies included in a fast scanning frequency window.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 15, 2012
    Applicant: Consiglio Nazionale Delle Ricerche
    Inventors: Friedrich Esch, Carlo Dri, Giovanni Comelli, Cristina Africh, Alessio Spessot
  • Publication number: 20120042422
    Abstract: A method and associated apparatus for topographically characterizing a workpiece. The workpiece is scanned with a scanning probe along a first directional grid, thereby scanning a reference surface and an area of interest subportion of the reference surface, at a variable pixel density including a first pixel density outside the area of interest and a second pixel density inside the area of interest to derive a first digital file characterizing topography of the workpiece. The workpiece is further scanned along the reference surface and the area of interest with the scanning probe along a second directional grid that is substantially orthogonal to the first directional grid and at a constant pixel density to derive a second digital file characterizing topography of the workpiece. A processor executes computer-readable instructions stored in memory that generate a topographical profile of the workpiece in relation to the first and second digital files.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 16, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Peter Gunderson, John Ibele
  • Publication number: 20120027947
    Abstract: A dispensing device has a cantilever comprising a plurality of thin films arranged relative to one another to define a microchannel in the cantilever and to define at least portions of a dispensing microtip proximate an end of the cantilever and communicated to the microchannel to receive material therefrom. The microchannel is communicated to a reservoir that supplies material to the microchannel. One or more reservoir-fed cantilevers may be formed on a semiconductor chip substrate. A sealing layer preferably is disposed on one of the first and second thin films and overlies outermost edges of the first and second thin films to seal the outermost edges against material leakage. Each cantilever includes an actuator, such as for example a piezoelectric actuator, to impart bending motion thereto. The microtip includes a pointed pyramidal or conical shaped microtip body and an annular shell spaced about the pointed microtip body to define a material-dispensing annulus thereabout.
    Type: Application
    Filed: July 26, 2011
    Publication date: February 2, 2012
    Inventors: Horacio D. Espinosa, Nicolaie A. Moldovan, Keun-Ho Kim
  • Publication number: 20120030846
    Abstract: An atomic force microscope (AFM) system capable of imaging multiple physical properties of a sample material at the nanoscale level. The system provides an apparatus and method for imaging physical properties using an electromagnetic coil placed under the sample. Excitation of the coil creates currents in the sample, which may be used to image a topography of the sample, a physical property of the sample, or both.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 2, 2012
    Applicant: Government of the United States, as represented by the Secretary of the Air Force
    Inventors: Shamachary Sathish, Vijayaraghava Nalladega, Kumar V. Jata, Mark P. Blodgett
  • Publication number: 20120030845
    Abstract: An atomic force microscope (AFM) (1) is one type of SPM, and detects a resonance frequency shift as an amount of interaction between a probe and a sample. The AFM (1) performs distance modulation control while performing feedback control of a probe-sample distance so as to keep the amount of interaction constant. The distance modulation control varies the probe-sample distance at a distance modulation frequency higher than a response speed of the feedback control. The AFM (1) further acquires the interaction amounts detected during the variation of the probe-sample distance by the distance modulation control while performing relative scanning between the probe and the sample, and detects a distribution of the interaction amounts in a three-dimensional space having a dimension within a scanning range and a thickness within a variation range of the probe-sample distance.
    Type: Application
    Filed: January 14, 2010
    Publication date: February 2, 2012
    Inventors: Takeshi Fukuma, Yasumasa Ueda
  • Patent number: 8108942
    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: Grant
    Filed: February 3, 2010
    Date of Patent: January 31, 2012
    Assignee: Mitutoyo Corporation
    Inventors: Yoshimasa Suzuki, Kazuhiko Kawasaki, Satoshi Koga
  • Patent number: 8099792
    Abstract: Atomic force photovoltaic microscopy apparatus and related methodologies, as can be used to quantitatively measure spatial performance variations in functioning photovoltaic devices.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: January 17, 2012
    Assignees: Northwestern University, The United States of America as represented by the Secretary of the Air Force
    Inventors: Mark C. Hersam, Benjamin Leever
  • Patent number: 8091143
    Abstract: A probe for atomic force microscopy (SM) comprising a micromechanical resonator (RMM) and a tip for atomic force microscopy (P1) projecting from said resonator, the probe being characterized in that: it also includes means (EL1) for selectively exciting a volume mode of oscillation of said resonator (RMM); and in that said tip for atomic force microscopy (P1, P1?) projects from said resonator substantially in correspondence with an antinode point (PV1) of said volume mode of oscillation. An atomic force microscope including such a probe (SM?). A method of atomic force microscopy including the use of such a probe.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: January 3, 2012
    Assignees: Centre National de la Recherche Scientifique, Universite de Bordeaux 1
    Inventors: Marc Faucher, Lionel Buchaillot, Jean-Pierre Aime, Bernard Louis Amand Legrand, Gerard Couturier
  • Patent number: 8089053
    Abstract: The present invention relates to double-tilt specimen holders of the side-entry type for transmission electron microscopy (TEM). The invention uses Micro Electro Mechanical Systems (MEMS) and Piezoelectric Transducer (PZT) technology to create a digitally programmable dynamically tilting specimen holder integrated into a standard transmission electron microscope stage. In this invention, specimens can be tilted using a MEMS/PZT-actuated specimen holder to between 10 and 25° for stereo pairs and at higher angles (up to 90°) for tomography applications. In one embodiment, the specimen cradle may be effectively rotated 360° about the Y axis, enabling virtually the complete three-dimensional mapping of a specimen.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 3, 2012
    Inventor: Dudley Sean Finch
  • Publication number: 20110321203
    Abstract: According to one embodiment, a planar positioning device includes a first actuator displaceable in a first axis direction, a second actuator displaceable in a second axis direction perpendicular to the first axis, a first displacement magnifying mechanism configured to magnify a displacement of the first actuator, a second displacement magnifying mechanism configured to magnify a displacement of the second actuator, a stage arranged in a plane, a first drive support mechanism including a parallel link connected between the first displacement magnifying mechanism and the stage to transmit the magnified displacement in the first-axis direction to the stage, a second drive support mechanism including a parallel link connected between the second displacement magnifying mechanism and the stage to transmit the magnified displacement in the second-axis direction to the stage, and a stabilizing support mechanism configured to apply tensions in the first-axis direction and the second-axis direction to the stage.
    Type: Application
    Filed: August 10, 2011
    Publication date: December 29, 2011
    Applicant: AKITA PREFECTURE, a government agency of Japan
    Inventors: Yotsugi Shibuya, Shigeki Mori, Kazuto Miyawaki, Akihiro Naganawa