Positioner Patents (Class 977/872)
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Patent number: 8347409Abstract: A method includes generating, using a sensor, a data signal. The data signal includes a first component based on a motion in a first direction of an actuator configured to provide motion between a sample and a probe in the first direction, the first direction substantially in the plane of the sample; and a second component based on at least one of topographic variations of the sample in a second direction, and a materials property of the sample. The method further includes generating, using a processor, a compensatory signal based on the first component of the data signal generated by the sensor; and providing the compensatory signal to the actuator.Type: GrantFiled: May 24, 2010Date of Patent: January 1, 2013Assignee: Massachusetts Institute of TechnologyInventors: Daniel James Burns, Georg Ernest Fantner, Kamal Youcef-Toumi
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Patent number: 8296860Abstract: 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: GrantFiled: March 16, 2009Date of Patent: October 23, 2012Assignee: Seagate Technology LLCInventors: Huiwen Liu, Lin Zhou, Dale Egbert, Jonathan Arland Nelson, Peter Gunderson
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Patent number: 8209766Abstract: 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: GrantFiled: February 12, 2010Date of Patent: June 26, 2012Assignee: Park Systems Corp.Inventors: Sang-il Park, Sang Han Chung, Byoung-Woon Ahn
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Patent number: 8079278Abstract: An end-effector is provided for use on a micro/nano manipulation device. The end-effector is comprised of: a micropump fluidly coupled to a microtube; a piezoelectric sensing structure disposed in the microtube; and a processing circuit electrically coupled to the sensing structure for determining the force of the fluid flowing through the microtube. The end-effector is a closed loop control-enabled micro/nano manipulation system.Type: GrantFiled: July 21, 2006Date of Patent: December 20, 2011Assignee: Board of Trustees of Michigan State UniversityInventors: Ning Xi, Uchechukwu Wejinya, Yantao Shen
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Patent number: 7735358Abstract: The present invention provides a self-sensing tweezer device for micro and nano-scale manipulation, assembly, and surface modification, including: one or more elongated beams disposed in a first configuration; one or more oscillators coupled to the one or more elongated beams, wherein the one or more oscillators are operable for selectively oscillating the one or more elongated beams to form one or more “virtual” probe tips; and an actuator coupled to the one or more elongated beams, wherein the actuator is operable for selectively actuating the one or more elongated beams from the first configuration to a second configuration.Type: GrantFiled: June 15, 2007Date of Patent: June 15, 2010Assignee: Insitutec, Inc.Inventors: Marcin B. Bauza, Shane C. Woody, Stuart T. Smith
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Patent number: 7644447Abstract: Provided is a scanning probe microscope capable of precisely analyzing characteristics of samples having an overhang surface structure. The scanning probe microscope comprises a first probe, a first scanner changing a position of the first probe along a straight line, and a second scanner changing a position of a sample in a plane, wherein the straight line in which the position of the first probe is changed by using the first scanner is non-perpendicular to the plane in which the position of the sample is changed by using the second scanner.Type: GrantFiled: November 17, 2006Date of Patent: January 5, 2010Assignee: Park Systems Corp.Inventors: Sang-il Park, Yong-Seok Kim, Jitae Kim, Sang Han Chung, Hyun-Seung Shin, Jung-Rok Lee, Euichul Hwang
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Patent number: 7578853Abstract: A scanning probe microscope system comprising a hollow probe 3, a tube 4 connected to a rear end 32 of the hollow probe 3, a support table 1 provided under the hollow probe 3, and a substrate 2 and a means 5 for washing the hollow probe 3 that are fixed to the support table 1, a sample S passing through the tube 4 and the hollow probe 3, and the substrate 2 and the washing means 5 being moved by the support table 1 such that each of them opposes the hollow probe 3.Type: GrantFiled: July 1, 2005Date of Patent: August 25, 2009Assignee: Honda Motor Co., Ltd.Inventors: Tatsuya Hattori, Pu Qian
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Patent number: 7456400Abstract: A scanning probe microscope has a probe needle and a control section that controls relative scanning movement between the probe needle and a surface of a sample in at least one direction parallel to the sample surface and controls relative movement between the probe needle and the sample surface in a direction perpendicular to the sample surface. A vibration source vibrates the probe needle at a vibrating frequency relative to the sample surface. An approach/separation drive section causes the probe needle to relatively approach to and separate from the sample surface at a predetermined distance while the probe needle is vibrated at the vibrating frequency relative to the sample surface by the vibration source. A detection section detects a rate of change in a vibration state of the probe needle in accordance with a distance between the probe needle and the sample surface.Type: GrantFiled: September 26, 2005Date of Patent: November 25, 2008Assignee: Seiko Instruments Inc.Inventors: Masatsugu Shigeno, Yoshiharu Shirakawabe, Amiko Nihei, Osamu Matsuzawa, Naoya Watanabe, Akira Inoue
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Patent number: 7288762Abstract: The invention provides a fine-adjustment mechanism for a scanning probe microscopy with high rigidity and high degree of measurement accuracy wherein a strain gauge displacement sensor which can be installed in a small space is arranged so that temperature compensation is achieved. The fine-adjustment mechanism composed of a piezoelectric device is provided with at least two-piece electrode. One of the electrodes is configured as a dummy electrode, to which no voltage is applied, and the other electrode is configured as an active electrode which generates strain when voltage is applied. One or two resistors are provided on each of the active electrode and dummy electrode, and a bridge circuit is configured by the resistors.Type: GrantFiled: January 28, 2005Date of Patent: October 30, 2007Assignee: SII NanoTechnology Inc.Inventors: Masato Iyoki, Akihiko Hidaka, Kazutoshi Watanabe
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Patent number: 7137292Abstract: A probe assembly suited for use in a scanning probe microscope (SPM) system includes a cantilever have an attachment to a main body portion. A suitable tip disposed at the free end of the cantilever provides various functions. According to various embodiments of the invention, the tip and cantilever members have active components to produce kinetic action, thus facilitating the utility of the probe assembly in various SPM applications.Type: GrantFiled: March 31, 2005Date of Patent: November 21, 2006Assignee: General Nanotechnology LLCInventor: Victor B. Kley