With Heat Transfer Or Temperature-indication Means Patents (Class 250/443.1)
  • Patent number: 11874609
    Abstract: A temperature control device and a temperature control method are provided. The temperature control device is located at an interface between a photoresist coating and developing machine and a lithography machine and includes: a temperature detection device, a gas flow generator and a controller. The temperature detection device and the gas flow generator are respectively connected to the controller. The temperature detection device is configured to detect an actual temperature at the interface in real time. The gas flow generator is at least configured to generate a gas flow sealing knife around the interface. The controller is configured to control the gas flow generator to generate the gas flow sealing knife responsive to that the actual temperature detected by the temperature detection device is not equal to the target temperature, to control the actual temperature at the interface to reach the target temperature through the gas flow sealing knife.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: January 16, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Enhao Chen, Zhiyong Hu, Jinping Sun
  • Patent number: 11322330
    Abstract: The apparatus is for use with an electron microscope, a sample, a source of high pressure gas and a vacuum pump system. The apparatus includes a holder part a body part and a Joule-Thomson refrigerator. The holder part is adapted to receive the sample and adapted to present the sample to the microscope for inspection in use. The body part defines a cavity, the cavity being evacuated by the vacuum pump system for use. The refrigerator is disposed within the cavity and thermally-coupled to the holder part, the refrigerator being coupled in use to the source of high pressure gas to maintain the sample at about a predetermined temperature.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: May 3, 2022
    Inventors: German Sciaini, Ariel A. Petruk
  • Patent number: 11309174
    Abstract: Provided is an ionization method for ionizing a sample 21 adhered to a tip of a probe 11 that is electrically conductive, by applying an ionization voltage to the probe 11 to electrically charge the sample 21. The ionization method includes: subjecting the probe 11 to treatment to make a surface of the probe 11 homogenous; causing adhesion of the sample 21 to the tip of the probe 11; and ionizing the sample 21 by applying the ionization voltage to the probe 11 to electrically charge the sample 21. The treatment for making the surface of the probe 11 homogenous can be implemented by, for example, causing corona discharge at the probe 11.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 19, 2022
    Assignee: SHIMADZU CORPORATION
    Inventors: Kenichi Taniguchi, Takeshi Uchida, Hiroto Itoi
  • Patent number: 11293441
    Abstract: Systems and methods to isolate a vibration source (e.g., a compressor) externally are disclosed. The embodiments generally include preventing/reducing vibration and/or pulsation transmission from the vibration source by one or more functional/structural isolating members, and preventing/reducing sound radiated from the vibration source by one or more sound enclosures.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: April 5, 2022
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Pavak Mehta, William B. Rockwood, Timothy G. Garvin
  • Patent number: 11251014
    Abstract: The disclosure relates to a sample holder for a charged particle microscope, comprising a holder body with a recess for releasably receiving a sample carrier with a sample therein; and at least one fixing element that is connectable to said holder body for fixing said sample carrier in said recess of said holder body. As described herein, said fixing element comprises a clamping member that is movably connected to said holder body, wherein said clamping member is movable between a closed and an open position, wherein in the open position said sample carrier can be placed in said recess, and wherein in said closed position said sample carrier can be locked in said recess. With this, a more reliable mounting of a sample carrier onto the sample holder can be established.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 15, 2022
    Assignee: FEI Company
    Inventors: Mathijs Petrus Wilhelmus van den Boogaard, Martijn LaGrange, Nestor Hernandez Rodriguez
  • Patent number: 11170968
    Abstract: A heating device having a heating element patterned into a robust MEMs substrate, wherein the heating element is electrically isolated from a fluid reservoir or bulk conductive sample, but close enough in proximity to an imagable window/area having the fluid or sample thereon, such that the sample is heated through conduction. The heating device can be used in a microscope sample holder, e.g., for SEM, TEM, STEM, X-ray synchrotron, scanning probe microscopy, and optical microscopy.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: November 9, 2021
    Assignee: Protochips, Inc.
    Inventors: Franklin Stampley Walden, II, John Damiano, Jr., Daniel Stephen Gardiner, David P. Nackashi, William Bradford Carpenter
  • Patent number: 11127561
    Abstract: A secondary storage container is a member which surrounds a primary storage container. A vaporized coolant generated in a primary storage space flows into and is stored in the secondary storage container. Radiant heat is blocked by the secondary storage container in a cooled state. Heat transferred to the primary storage container is reduced by a heat conducting path including the secondary storage container.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: September 21, 2021
    Assignee: JEOL Ltd.
    Inventor: Masashi Shimizu
  • Patent number: 10971327
    Abstract: A cryogenic heat transfer system including a platen supported by a rotatable shaft, a housing surrounding a portion of the rotatable shaft, the housing including an annular heat sink surrounding the rotatable shaft and defining a heat transfer gap between the heat sink and the rotatable shaft, the heat sink including a fluid conduit extending therethrough for circulating a first cooling fluid through the heat sink, a first dynamic seal arrangement extending from a first axial end of the heat sink and surrounding the rotatable shaft, and a second dynamic seal arrangement extending from a second axial end of the heat sink opposite the first axial end and radially surrounding the rotatable shaft, wherein the heat sink and the first and second dynamic seal arrangements define a fluidically sealed volume surrounding the rotatable shaft, the fluidically sealed volume containing a second cooling fluid.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 6, 2021
    Assignee: Applied Materials, Inc.
    Inventor: Robert J. Mitchell
  • Patent number: 10775285
    Abstract: Instrumental analysis systems are provided that can include: an analytical attachment axially aligned with a sample upon a sample stage; structure supporting both the attachment and the sample stage; and at least one band affixed to the analytical attachment and aligned symmetrically about the axis of the attachment. Methods for analyzing samples are provided. The methods can include: providing at least one band supported by a structure; firmly affixing an analytical attachment to the band, and axially aligning the attachment with a sample; and providing a temperature gradient between the band and the sample while maintaining axial alignment of the objective and the sample.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 15, 2020
    Assignee: Montana Intruments Corporation
    Inventors: William Baker, Isaac Henslee, Luke Mauritsen, Anjan Reijnders
  • Patent number: 10651007
    Abstract: A method of examining a cryogenic specimen in a Charged Particle Microscope, comprising: Providing the specimen in a cryogenic cell on a specimen holder; Directing a charged particle beam from a source and along an axis through an evacuated beam conduit of an illuminator system so as to irradiate at least a portion of the specimen therewith; Using a detector to detect radiation emanating from the specimen in response to said irradiation, further comprising: Configuring said cell to comprise an elongate tube that extends within said beam conduit into said illuminator system and encloses said axis; Maintaining said tube at a cryogenic temperature at least during said irradiation.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 12, 2020
    Assignee: FEI Company
    Inventors: Gerbert Jeroen Van De Water, Roland W. P Jonkers, Gijs Van Duinen, Stephanus H. L. Van Den Boom, Fotios Sakellariou
  • Patent number: 10331046
    Abstract: A system and method is provided for providing a thermal distribution on a workpiece during a lithographic process. The system provides a source of lithographic energy to workpiece, such as a workpiece having a lithographic film formed thereover. A workpiece support having a plurality of thermal devices embedded therein is configured to support the workpiece concurrent to an exposure of the workpiece to the lithographic energy. A controller individually controls a temperature of each of the plurality of thermal devices, therein controlling a specified temperature distribution across the workpiece associated with the exposure of the workpiece to the lithographic energy. Controlling the temperature of the thermal devices can be based on a model, a measured temperature of the workpiece, and/or a prediction of a temperature at one or more locations on the workpiece.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: June 25, 2019
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Shih-Ming Chang
  • Patent number: 10242841
    Abstract: The purpose of the present invention is to provide a specimen holder having a structure capable of maintaining a seal surface regardless of a change of environment. A specimen holder according to the present invention is characterized by comprising a specimen holder axis part having a specimen and/or a specimen mesh setting part, an external cylinder part capable of housing the specimen holder axis part, and a seal part for sealing the specimen and/or the specimen mesh setting part from atmosphere wherein the seal part is set to a step part which is set to a portion of the external cylinder part. Further, in a referred embodiment of a specimen holder according to the present invention, it is characterized in that the seal part set to the step part is as a first seal part, further the specimen holder has a second seal part which exists in a tip part of the specimen holder and exists in a direction of a central axis of an electron microscope comparing to the specimen and/or the specimen mesh setting part.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 26, 2019
    Assignee: Mel-Build Corporation
    Inventor: Hiroya Miyazaki
  • Patent number: 10192714
    Abstract: A novel sample holder for specimen support devices for insertion in electron microscopes. The novel sample holder of the invention allows for the introduction of gases or liquids to specimens for in situ imaging, as well as electrical contacts for electrochemical or thermal experiments.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: January 29, 2019
    Assignee: Protochips, Inc.
    Inventors: John Damiano, Jr., David P. Nackashi, Stephen E. Mick
  • Patent number: 9947506
    Abstract: Shaft members which respectively protrude toward at least one beam member and the other beam member in a z-axis direction are formed in a mesh support member. A through hole for penetrating a space between a shaft end surface and an opening portion in the z-axis direction and introducing a focused ion beam toward a fine sample piece is formed in at least one shaft member.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 17, 2018
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Toshiyuki Iwahori, Tsuyoshi Oonishi
  • Patent number: 9899184
    Abstract: An optical vacuum cryostage for correlative light and electron microscopy comprises a vacuum chamber, an anti-contamination system adapter interface, an electron microscope specimen holder adapter interface, an upper optical window, a lower optical window, a vacuum pumping system adapter interface and a vacuum valve, wherein the anti-contamination system adapter interface is arranged in one end of the vacuum chamber, the electron microscope specimen holder adapter interface is arranged in the other end of the vacuum chamber, the upper optical window is arranged on the upper wall of the vacuum chamber, the lower optical window is arranged on the lower wall of the vacuum chamber and opposite to the upper optical window.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: February 20, 2018
    Assignee: Institute of Biophysics, Chinese Academy of Sciences
    Inventors: Gang Ji, Shuoguo Li, Fei Sun
  • Patent number: 9759641
    Abstract: A sub-micron scale property testing apparatus including a test subject holder and heating assembly. The assembly includes a holder base configured to couple with a sub-micron mechanical testing instrument and electro-mechanical transducer assembly. The assembly further includes a test subject stage coupled with the holder base. The test subject stage is thermally isolated from the holder base. The test subject stage includes a stage subject surface configured to receive a test subject, and a stage plate bracing the stage subject surface. The stage plate is under the stage subject surface. The test subject stage further includes a heating element adjacent to the stage subject surface, the heating element is configured to generate heat at the stage subject surface.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 12, 2017
    Assignee: Hysitron, Inc.
    Inventors: Yunje Oh, Syed Amanulla Syed Asif, Edward Cyrankowski, Oden Lee Warren
  • Patent number: 9666409
    Abstract: A novel sample holder for specimen support devices for insertion in electron microscopes. The novel sample holder of the invention allows for the introduction of gases or liquids to specimens for in situ imaging, as well as electrical contacts for electrochemical or thermal experiments.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 30, 2017
    Assignee: Protochips, Inc.
    Inventors: John Damiano, Jr., David P. Nackashi, Stephen E. Mick
  • Patent number: 9422159
    Abstract: A digital quantum dot radiographic detection system described herein includes: a scintillation subsystem and a semiconductor visible light detection subsystem (including a plurality of quantum dot image sensors). In a first preferred digital quantum dot radiographic detection system, the plurality of quantum dot image sensors is in substantially direct contact with the scintillation subsystem. In a second preferred digital quantum dot radiographic detection system, the scintillation subsystem has a plurality of discrete scintillation packets, at least one of the discrete scintillation packets communicating with at least one of the quantum dot image sensors.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: August 23, 2016
    Inventor: Leigh E. Colby
  • Patent number: 9275826
    Abstract: Electron microscope support structures and methods of making and using same. The support structures are generally constructed using semiconductor materials and semiconductor manufacturing processes. The temperature of the support structure may be controlled and/or gases or liquids may be confined in the observation region for reactions and/or imaging.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 1, 2016
    Assignee: PROTOCHIPS, INC.
    Inventors: John Damiano, Jr., Stephen E. Mick, David P. Nackashi
  • Patent number: 9176398
    Abstract: A method for thermally conditioning an optical element includes irradiating the optical element with radiation, not-irradiating the optical element with the radiation, allowing heat flow between the optical element and a conditioning fluid that is held in a conditioning fluid reservoir, and providing a fluid flow of the conditioning fluid, to supply thermally conditioned fluid to the reservoir. A flow rate of the fluid during the irradiating of the optical element is lower than a flow rate of the fluid when the optical element is not-irradiated.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: November 3, 2015
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Roger Wilhelmus Antonius Henricus Schmitz, Tjarko Adriaan Rudolf Van Empel, Marcel Johannus Elisabeth Hubertus Muitjens, Lun Cheng, Franciscus Johannes Joseph Janssen, Willem Arie Van Helden, Richard Versluis, Paulus Bartholomeus Johannes Schaareman, Axel Sebastiaan Lexmond, Evert Nieuwkoop, Charles William Barras Potts, Martinus Henricus Johannes Lemmen, Frederik Van Der Graaf, Mathilde Gertrudis Maria De Kroon, Johannes Fransiscus Maria Velthuis
  • Patent number: 9087673
    Abstract: A sample holder assembly includes a sample tray, a base plate, a stage mount, and a calibration standard mounted onto the stage mount. Three mating structures on the bottom of the base plate mate with corresponding structures on a stage mount that is attached to the sample stage of the SEM. An optional contacting conductor provides electrical contact between the stage mount and the base plate so that charge generated on the sample by the electron beam can leave the sample through the sample conductive layer to the sample tray, to the base plate, to the stage mount, and through the grounded stage.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: July 21, 2015
    Assignee: FEI COMPANY
    Inventors: Matthew Barrett, Michael D. Smith, Michal Geryk, Paul Scagnetti, Richard Tovey
  • Patent number: 9048065
    Abstract: Methods of using temperature control devices in electron microscopes. The temperature of the device structure may be controlled to extract information about reactions and processes that was previously unobtainable.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: June 2, 2015
    Assignee: PROTOCHIPS, INC.
    Inventors: John Damiano, Stephen Mick, David Nackashi
  • Patent number: 9010202
    Abstract: An improved cryogenic specimen holder for imaging and analysis facilitates imaging at very high tilt angles with a large field of view. A retractable specimen holder tip protects the specimen during transport. An optimized Dewar design is positioned at a fixed, tilted angle with respect to the axis of the holder, providing a means of continuously cooling the specimen irrespective of the high tilt angle and amount of liquid nitrogen present in the vessel. The Dewar neck design reduces entrapment of nitrogen gas bubbles and its shape prevents the spilling of liquid nitrogen at high tilt angles. The specimen holder has a retractable tip that completely encapsulates the specimen within a shielded environment internal to the specimen holder body. The cooling and specimen transfer mechanisms reduce thermal drift and the detrimental effects of vibrations generated by both the evaporation of liquid nitrogen present in the Dewar and other environmental effects.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: April 21, 2015
    Inventors: Halina Stabacinskiene, Jeffrey J. Gronsky, Christine M. Thomas, Pushkarraj V. Deshmukh, Alan C. Robins, Paul E. Fischione
  • Patent number: 8987683
    Abstract: A charged particle beam drawing apparatus according to one embodiment of the present invention comprises a load lock chamber provided for introducing a target object from the outside and capable of switching an atmosphere state and a vacuum state, a transfer chamber arranged so as to be able to communicate with the load lock chamber and transferring the target object, a soaking chamber arranged so as to be able to communicate with the transfer chamber and having a temperature adjustment container for housing the target object therein and controlling a temperature of the target object with radiation and a temperature adjustment part for controlling a temperature of the temperature adjustment container, and a drawing chamber arranged so as to be able to communicate with the transfer chamber and drawing on the target object at a constant temperature.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: March 24, 2015
    Assignee: NuFlare Technology, Inc.
    Inventors: Michihiro Kawaguchi, Kiminobu Akeno, Yoshinori Kagawa, Yu Asami, Keisuke Yamaguchi
  • Patent number: 8987665
    Abstract: An electron microscope including a vacuum chamber for containing a specimen to be analyzed, an optics column, including an electron source and a final probe forming lens, for focusing electrons emitted from the electron source, a specimen stage positioned in the vacuum chamber under the probe forming lens for holding the specimen, and an x-ray detector positioned within the vacuum chamber. The x-ray detector includes an x-ray sensitive solid-state sensor and a mechanical support system for supporting and positioning the detector, including the sensor, within the vacuum chamber. The entirety of the mechanical support system is contained within the vacuum chamber. Multiple detectors of different types may be supported within the vacuum chamber on the mechanical support system. The mechanical support system may also include at least one thermoelectric cooler element for thermo-electrically cooling the x-ray sensors.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 24, 2015
    Assignee: FEI Company
    Inventors: Frederick H. Schamber, Cornelis G. van Beek
  • Patent number: 8916837
    Abstract: A charged particle lithography system for transferring a pattern onto the surface of a target, comprising a source for generating a charged particle beam, a first chamber housing the source, a collimating system for collimating the charged particle beam, a second chamber housing the collimating system, and a first aperture array element for generating a plurality of charged particle subbeams from the collimated charged particle beam.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: December 23, 2014
    Assignee: Mapper Lithography IP B.V.
    Inventors: Laura Dinu-Gürtler, Willem Henk Urbanus, Marco Jan-Jaco Wieland, Stijn Willem Herman Karel Steenbrink
  • Patent number: 8884248
    Abstract: The invention relates to a method of forming a vitrified sample on a sample holder for inspection in an electron microscope. It is known to spray a solution on a grid and then immerse the grid in a cryogenic liquid, such as ethane or liquid nitrogen. The invention proposes to spray small droplets of the liquid on a cryogenic surface, such as a grid or a sample holder in vacuum. The liquid forms vitrified sample material when hitting the surface due to the low temperature of the grid or sample holder. A lamella may be excavated from the thus formed sample material, to be studied in a TEM, or the vitrified sample material may be directly observed in a SEM. In an embodiment the material may be sprayed on a cryogenic liquid, to be scooped from the liquid and placed on a grid.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: November 11, 2014
    Assignee: FEI Company
    Inventors: Johannes Jacobus Lambertus Mulders, Rudolf Johannes Peter Gerardus Schampers, Petrus Hubertus Franciscus Trompenaars
  • Patent number: 8878144
    Abstract: The electron beam apparatus sample holding means has a diaphragm which is placed on upper and lower sides of a sample to form a cell for separating a gas atmosphere and a vacuum atmosphere of a sample chamber and sealing an ambient atmosphere of the sample; a gas supply means for supplying gas to an inside of the cell; and exhaust means for exhausting gas. The exhaust means includes a gas exhaust pipe provided in the inside of the cell and an openable/closable exhaust hole provided in a sidewall of the sample holding means so as to pass through the cell. The diaphragm is an amorphous film made of light elements which can transmit an electron beam, such as carbon films, oxide films, and nitride films.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: November 4, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Toshie Yaguchi, Yasuhira Nagakubo, Akira Watabe
  • Patent number: 8872129
    Abstract: Electron microscope support structures and methods of making and using same. The support structures are generally constructed using semiconductor materials and semiconductor manufacturing processes. The temperature of the support structure may be controlled and/or gases or liquids may be confined in the observation region for reactions and/or imaging.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: October 28, 2014
    Assignee: Protochips, Inc.
    Inventors: John Damiano, Jr., Stephen E. Mick, David P. Nackashi
  • Patent number: 8853648
    Abstract: A sample holder for efficiently performing the processing or observation of a sample by means of charged particles while cooling. Particularly, disclosed is a sample holder whereby the processing or observation of a material which may be affected by the influence of heat damage can be performed in a state in which the material is cooled, and furthermore, the influence due to a sample processing method using charged particles can be reduced by cooling. The sample holder is provided with a sample stage capable of fixing a sample piece extracted from a sample by ion beam irradiation, and a rotation mechanism for rotating the sample stage in a desired direction, which can be attached to an ion beam device and a transmission electron microscope device, and which has a movable heat transfer material for thermally connecting the sample stage and a cooling source, and an isolation material for thermally isolating the sample stage and the heat transfer material from the outside.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: October 7, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yasuhira Nagakubo, Toshiaki Tanigaki, Katsuji Ito
  • Patent number: 8829469
    Abstract: A novel sample holder for specimen support devices for insertion in electron microscopes. The novel sample holder of the invention allows for the introduction of gases or liquids to specimens for in situ imaging, as well as electrical contacts for electrochemical or thermal experiments.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: September 9, 2014
    Assignee: PROTOCHIPS, Inc.
    Inventors: John Damiano, Jr., David P. Nackashi, Stephen E. Mick
  • Patent number: 8796649
    Abstract: The support and electrode assemblies of the ion implanter are cooled by circulating a coolant through these parts during operation. The support for the arc chamber includes a one piece block of aluminum through which coolant passes and a hollow rectangular post on which the arc chamber sits with a space therebetween.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: August 5, 2014
    Assignee: ion Technology Solutions, LLC
    Inventors: Manuel A. Jerez, Carlos F. Borges
  • Patent number: 8648316
    Abstract: The invention relates to a cooling apparatus (101) for a sample in an ion beam etching process, including, a sample stage (102) for arranging the sample, a coolant receptacle (120) containing a coolant, at least one thermal conduction element (106a, 106b) that connects the sample stage (102) to the coolant, a cooling finger (105) connected to the thermal conduction element (106a, 106b), the cooling finger (105) comprising a conduit (130, 131) through which coolant can flow and which is connectable to the coolant receptacle (120). The invention further relates to a method of adjusting the temperature of a sample in an ion beam etching process, including mounting a sample on a coolable sample stage (102), aligning the sample on the sample stage (102), and cooling the sample by coolant directed through a conduit (130, 131) of a cooling finger.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 11, 2014
    Assignee: Leica Mikrosysteme GmbH
    Inventors: Thomas Pfeifer, Rainer Wogritsch
  • Patent number: 8633439
    Abstract: System and method for EMI shielding for a CD-SEM are described. One embodiment is a scanning electron microscope (“SEM”) comprising an electron gun for producing an electron beam directed toward a sample; a secondary electron (“SE”) detector for detecting secondary electrons reflected from the sample in response to the electron beam; and a dual-layer shield disposed around and enclosing the SE detector. The shield comprises a magnetic shielding lamina layer and a metallic foil layer.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: January 21, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-Chi Tsao, Syun-Jie Jhan, Yi-Cheng Shih, Chwen Yu
  • Publication number: 20140014835
    Abstract: The present invention makes it possible, even when using an ordinary electron beam device (not an environment-controlled electron beam device), to create locally a low vacuum condition in the vicinity of a sample and cool said sample by means of a sample holder alone, without modifying the device or adding equipment such as a gas cylinder. The sample to be observed is placed in a sample holder provided with: a vessel that can contain a substance to serve as a gas source; and a through-hole in the bottom of a sample mount on said vessel. Via the through-hole, gas evaporating or volatilizing from the vessel is supplied to the sample under observation, thereby creating a localized low-vacuum state at or in the vicinity of the sample. Also, the heat of vaporization required for volatilization can be used to cool the sample.
    Type: Application
    Filed: October 28, 2011
    Publication date: January 16, 2014
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Kotaro Hosoya, Masaomi Ohno, Haruhiko Hatano
  • Patent number: 8618502
    Abstract: This invention provides a method of mounting cylindrical electrodes in the geometry of a miniature electrostatic quadrupole, which can act as a quadrupole mass filter or a quadrupole ion guide, or be used in a linear quadrupole ion trap. The electrodes are mounted in pairs on microfabricated supports, which are formed from conducting parts on an insulating substrate. The supports include a suspended flexure system to relieve strains caused by mismatch between the thermal expansion coefficients of the electrodes and the substrate. A complete quadrupole is constructed from two such supports, which are spaced apart by further conducting spacers.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: December 31, 2013
    Assignee: Microsaic Systems PLC
    Inventors: Richard Syms, Andrew Holmes, Shane Martin O'Prey
  • Patent number: 8618478
    Abstract: A method and apparatus for reducing drift in a charged particle beam system. The method includes providing a charged particle beam column including a charged particle beam, a lens system, and a sample chamber; disposing a temperature-controlled device between the lens system and the sample chamber to control heat transfer between the lens system and the sample chamber; and controlling the temperature of the temperature-controlled device to reduce or eliminate the thermal drift of the position of a sample within the sample chamber relative to the position of the charged particle beam.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 31, 2013
    Assignee: FEI Company
    Inventors: Casper Maria Smit, Johannes Antonius Maria van den Oetelaar
  • Patent number: 8604446
    Abstract: Cryogenic manipulation of a material sample with an in situ probe is enabled with a novel cooled probe design. A material sample mounted on a cryo-stage in a vacuum chamber is cooled to a cryogenic temperature. In addition, a nano-manipulator probe inside the sample chamber is also cooled to cryogenic temperature. A specific sample site is milled in the chamber using a focused ion beam and attached to the cooled probe by vapor deposition. After releasing the sample, the sample site is attached to a destination surface such as a transmission electron microscope (TEM) grid and the probe is then detached from the sample using the focused ion beam.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: December 10, 2013
    Assignee: The State of Oregon Acting by and through the State Board of Higher Education on Behalf of the University of Oregon
    Inventor: Jeffrey J. Ditto
  • Patent number: 8586949
    Abstract: A charged particle lithography system for transferring a pattern onto the surface of a target, comprising a main vacuum chamber, a source chamber and an intermediate chamber, both located in the main vacuum chamber, a beam generator for generating a charged particle beam, the beam generator located in the source chamber, and a first aperture array element for generating a plurality of charged particle beamlets from the beam, the first aperture array element located in the intermediate chamber. The system is adapted for maintaining a first pressure in the main vacuum chamber, a second pressure in the intermediate chamber, and a third pressure in the source chamber, and wherein the first pressure is lower than an ambient pressure, the second pressure is lower than the first pressure, and the third pressure is lower than the second pressure.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: November 19, 2013
    Assignee: Mapper Lithography IP B.V.
    Inventors: Laura Dinu-Gürtler, Willem Henk Urbanus, Marco Jan-Jaco Wieland, Stijn Willem Herman Karel Steenbrink
  • Patent number: 8558196
    Abstract: A charged particle lithography system for pattern transfer onto a target surface, comprising a beam generator for generating a plurality of beamlets, and a plurality of aperture array elements comprising a first aperture array, a blanker array, a beam stop array, and a projection lens array. Each aperture array element comprises a plurality of apertures arranged in a plurality of groups, wherein the aperture groups of each aperture array element form beam areas distinct and separate from non-beam areas formed between the beam areas and containing no apertures for beamlet passage. The beam areas are aligned to form beam shafts, each comprising a plurality of beamlets, and the non-beam areas are aligned to form non-beam shafts not having beamlets present therein. The first aperture array element is provided with cooling channels in the non-beam areas for transmission of a cooling medium for cooling the array element.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: October 15, 2013
    Assignee: Mapper Lithography IP B.V.
    Inventors: Marco Jan-Jaco Wieland, Alexander Hendrik Vincent Van Veen, Hendrik Jan De Jong
  • Patent number: 8558193
    Abstract: The present invention provides a charged particle beam device in which the change of expansion/contraction of a specimen which is an observing object is restricted thereby eliminating position deviation of the observing object and significantly increasing its throughput. The present invention includes specimen holding means for holding a specimen, temperature regulation means which can regulate the temperature of the specimen, and temperature regulation means control means which can control the temperature regulation means based on various conditions.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: October 15, 2013
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Shusaku Maeda, Kouji Ishiguro
  • Patent number: 8549768
    Abstract: A method for producing a fog of ice nuclei by introducing a cryogenic fluid and a humid gas stream into a freeze dryer. The cryogenic fluid and humid gas stream will form ice nuclei having a preferred size for introduction into vials contained in the freeze dryer.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 8, 2013
    Assignee: Linde Aktiengesellschaft
    Inventors: Prerona Chakravarty, Ron C. Lee
  • Patent number: 8530857
    Abstract: A stage device to be used in a vacuum includes: a gas supply unit for generating a gas; a base member having upper, lower, right, and left surfaces; a slider formed in a frame shape surrounding the base member and having surfaces facing the respective surfaces of the base member, and disposed to be movable; and an air bearing configured to float the slider by supplying the gas to a space between the base member and the slider. The slider includes: an air chamber provided on the surface facing the base member for accumulating air, and the base member includes thereinside a slider-moving air flow passage configured to guide the gas from an inlet port to an outlet port for supplying the gas to the air chamber of the slider.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: September 10, 2013
    Assignee: Advantest Corp.
    Inventors: Yoshihisa Ooae, Youichi Shimizu
  • Patent number: 8513622
    Abstract: A method for attaching a frozen specimen to a manipulator probe tip typically inside a charged-particle beam microscope. The method comprises cooling the probe tip to a temperature at or below that of the frozen specimen, where the temperature of the frozen specimen is preferably at or below the vitrification temperature of water; bringing the probe tip into contact with the frozen specimen, and bonding the probe tip to the frozen specimen by flowing water vapor onto the region of contact between the probe tip and the frozen specimen. The bonded probe tip and specimen may be moved to a support structure such as a TEM grid and bonded to it by similar means. The probe tip can then be disconnected by heating the probe tip or applying a charged-particle beam.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: August 20, 2013
    Assignee: Omniprobe, Inc.
    Inventor: Cheryl Hartfield
  • Patent number: 8450701
    Abstract: A cold trap filter and method is provided for filtering chemical species from a vacuum system of an ion implantation system. A canister is in fluid communication with an exhaust of a high vacuum pump and an intake of a roughing pump used for evacuating an ion source chamber. One or more paddles are positioned within the canister, wherein each paddle has a cooling line in fluid communication with a coolant source. The coolant source passes a coolant through the cooling line, thus cooling the one or more paddles to a predetermined temperature associated with a condensation or deposition point of the chemical species, therein condensing or depositing the chemical species on the paddles while not interfering with a vacuum capacity of the high vacuum and roughing pumps. The paddles can also be electrically biased to electrostatically attract the chemical species to the paddles in one or more biasing steps.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: May 28, 2013
    Assignee: Axcelis Technologies, Inc.
    Inventors: William P. Reynolds, James Gregg, Denis Robitaille, William D. Lee
  • Patent number: 8431889
    Abstract: The present invention relates to a method for repetitive chemical analysis of a gas flow, wherein said gas flow consists of a carrier gas and gaseous chemical compounds, comprising the following method steps: feeding said gas flow to a gas chromatographic separation column by means of a feeding device; collecting at least a part of said gaseous chemical compounds for a defined time period by means of a thermally based collecting device which is coupled to said gas chromatographic separation column and/or said feeding device; releasing said collected gaseous chemical compounds in a temporally focused manner by means of said thermally based collecting device; separating said released gaseous chemical compounds by means of said gas chromatographic separation column; and analyzing said separated gaseous chemical compounds by means of an analyzer. The present invention further relates to a device for performing such a method.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: April 30, 2013
    Assignee: Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH)
    Inventors: Ralf Zimmermann, Mohammad Reza Saraji-Bozorgzad, Markus Simon Eschner, Thomas Maximilian Groeger
  • Patent number: 8426829
    Abstract: An ion implanter has an implant wheel with a plurality of wafer carriers distributed about a periphery of the wheel. Each wafer carrier has a heat sink for removing heat from a wafer on the carrier during the implant process by thermal contact between the wafer and the heat sink. The wafer carriers have wafer retaining fences formed as cylindrical rollers with axes in the respective wafer support planes of the wafer carriers. The cylindrical surfaces of the rollers provide wafer abutment surfaces which can move transversely to the wafer support surfaces so that no transverse loading is applied by the fences to wafer edges as the wafer is pushed against the heat sink by centrifugal force. The wafer support surfaces comprise layers of elastomeric material and the movable abutment surfaces of the fences allow even thermal coupling with the heat sink over the whole area of the wafer.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 23, 2013
    Assignee: GTAT Corporation
    Inventors: William H Leavitt, Theodore H Smick, Joseph Daniel Gillespie, William H Park, Paul Eide, Drew Arnold, Geoffrey Ryding
  • Patent number: 8362428
    Abstract: A transmission electron microscope has a target body position on the electron optical axis of the microscope, and an electrically conductive body off the axis of the microscope. The microscope also has an electron source for producing an axial electron beam. In use, the beam impinges upon a target body located at the target body position. The microscope further has a system for simultaneously producing a separate off-axis electron beam. In use, the off-axis electron beam impinges on the electrically conductive body causing secondary electrons to be emitted therefrom. The electrically conductive body is located such that the emitted secondary electrons impinge on the target body to neutralise positive charge which may build up on the target body.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: January 29, 2013
    Assignee: Medical Research Council
    Inventors: John Berriman, Peter Rosenthal
  • Publication number: 20130009073
    Abstract: A transmission electron microscope (TEM) micro-grid includes a grid and a heater including at least one carbon nanotube film structure located on the grid. The micro-grid with the at least one carbon nanotube film structure prevents a floating of the sample located on the micro-grid to increase the quality of TEM images.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 10, 2013
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: LI-NA ZHANG, CHEN FENG, KAI-LI JIANG, SHOU-SHAN FAN
  • Patent number: 8336405
    Abstract: An improved cryogenic specimen holder for imaging and analysis facilitates imaging at very high tilt angles with a large field of view. A retractable specimen holder tip protects the specimen during transport. An optimized Dewar design is positioned at a fixed, tilted angle with respect to the axis of the holder, providing a means of continuously cooling the specimen irrespective of the high tilt angle and the amount of liquid nitrogen present in the vessel. The Dewar neck design reduces the entrapment of nitrogen gas bubbles and its shape prevents the spilling of liquid nitrogen at high tilt angles. The specimen holder has a retractable tip that completely encapsulates the specimen within a shielded environment internal to the specimen holder body. The cooling and specimen transfer mechanisms reduce thermal drift and the detrimental effects of vibrations generated by both the evaporation of liquid nitrogen present in the Dewar as well as other environmental effects.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: December 25, 2012
    Assignee: E.A. Fischione Instruments, Inc.
    Inventors: Halina Stabacinskiene, Jeffrey J. Gronsky, Christine M. Thomas, Pushkarraj V. Deshmukh, Alan C. Robins, Paul E. Fischione