Methods Patents (Class 250/424)
  • Publication number: 20150048255
    Abstract: An ion source for a mass spectrometer and a method of ionizing a sample are disclosed. A droplet generator is configured to emit a stream of analyte droplets, which are ionized upon impact with a target, thus forming an ion stream. Preferably, the droplets have a diameter that is greater than a preset value to increase the kinetic energy of the droplets. Additionally, the droplet generator can be configured to create a gas flow that increases the kinetic energy of the droplets. In one embodiment, the target is positioned upstream of an inlet of a mass spectrometer so that the ion stream enters the inlet. In another preferred embodiment, the target is positioned downstream of the inlet so that the stream of droplets passes through the inlet of the mass spectrometer, and the inlet is provided with a pressure drop that increases the kinetic energy of the droplets.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 19, 2015
    Inventor: Joseph A. Jarrell
  • Publication number: 20150034817
    Abstract: A mass spectrometry apparatus includes a holding table that holds a specimen to be ionized, a probe that identifies a portion of the specimen to be ionized, an ion extraction electrode that extracts ions obtained by ionizing the specimen, a liquid supplying unit that supplies liquid to between the specimen and the probe to form a liquid bridge between the specimen and the probe, a vibrating unit that vibrates one of the probe and the holding table, an electric field generating unit that generates an electric field between the probe and the ion extraction electrode, a mass spectrometry unit that mass analyzes ions extracted by the ion extraction electrode, and a synchronization unit configured to synchronize a time at which ions are generated from the portion with a time at which the mass spectrometry unit measures the ions.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Yoichi Otsuka, Masafumi Kyogaku
  • Publication number: 20150034814
    Abstract: An ion source for a mass spectrometer is disclosed comprising a lens and mirror arrangement which focuses a laser beam onto the upper surface of a target substrate. The lens has an effective focal length ?300 mm. The laser beam is directed onto the target substrate at an angle ? with respect to the perpendicular to the target substrate, wherein ??3°. One or more ion guides receive ions released from the target substrate and onwardly transmit the ions along an ion path which substantially bypasses the lens and mirror.
    Type: Application
    Filed: July 6, 2012
    Publication date: February 5, 2015
    Applicant: MICROMASS UK LIMITED
    Inventors: Jeffery Mark Brown, Paul Murray, Daniel James Kenny
  • Publication number: 20150034837
    Abstract: An ion source includes an ion source chamber, a gas source to provide a fluorine-containing gas species to the ion source chamber and a cathode disposed in the ion source chamber configured to emit electrons to generate a plasma within the ion source chamber. The ion source chamber and cathode are comprised of a refractory metal. A phosphide insert is disposed within the ion source chamber and presents an exposed surface area that is configured to generate gas phase phosphorous species when the plasma is present in the ion source chamber, wherein the phosphide component is one of boron phosphide, tungsten phosphide, aluminum phosphide, nickel phosphide, calcium phosphide and indium phosphide.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Bon-Woong Koo, William T. Levay, Richard M. White, Eric R. Cobb
  • Publication number: 20150028222
    Abstract: A photon source includes a plasma source for generating plasma and a photon guide through which the plasma travels. The photon guide includes an inner surface configured for reflecting photons emitted from the plasma. As the plasma travels through the photon guide, plasma electrons and ions recombine at the inner surface, whereby the predominant species emitted from an outlet of the photon guide are the photons and neutral particles, with few or no plasma electrons and ions being emitted.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Applicant: Agilent Technologies, Inc.
    Inventors: Mark Denning, Guthrie Partridge
  • Publication number: 20150028221
    Abstract: A method of ion source fabrication for a mass spectrometer includes simultaneously forming aligned component portions of an ion source using direct metal laser fusing of sequential layers. The method can further include forming the component portions on a base plate made from a ceramic material by applying fused powder to the base plate to build the component portions thereon.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 29, 2015
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Wai Tak Lee, Richard K. Chun
  • Patent number: 8937288
    Abstract: The invention generally relates to systems and methods for mass spectrometry analysis of microorganisms in samples.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: January 20, 2015
    Assignee: Purdue Research Foundation
    Inventors: Robert Graham Cooks, Ahmed Mohamed Hamid, Alan Keith Jarmusch, Zheng Ouyang
  • Publication number: 20150014548
    Abstract: The invention relates generally to sample ionization, and provides ionization probe assemblies, systems, computer program products, and methods useful for this purpose.
    Type: Application
    Filed: August 4, 2014
    Publication date: January 15, 2015
    Inventors: Steven A. Hofstadler, Jose R. Gutierrez, James C. Hannis, Jared J. Drader, Rex O. Bare, Jeffrey C. Smith, Paul J. Gleason, Jared Nathanson
  • Patent number: 8932875
    Abstract: The invention generally relates to systems and methods for sample analysis. In certain embodiments, the invention provides a system for analyzing a sample that includes a probe including a material connected to a high voltage source, a device for generating a heated gas, and a mass analyzer.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 13, 2015
    Assignee: Purdue Research Foundation
    Inventors: Robert Graham Cooks, Guangtao Li, Xin Li, Zheng Ouyang
  • Patent number: 8933414
    Abstract: The invention provides a charged particle beam system wherein the middle section of the focused ion beam column is biased to a high negative voltage allowing the beam to move at higher potential than the final beam energy inside that section of the column. At low kV potential, the aberrations and coulomb interactions are reduced, which results in significant improvements in spot size.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: January 13, 2015
    Assignee: FEI Company
    Inventor: Mostafa Maazouz
  • Patent number: 8933424
    Abstract: An ion implantation system and method are provided where an ion source generates an ion and a mass analyzer mass analyzes the ion beam. A beam profiling apparatus translates through the ion beam along a profiling plane in a predetermined time, wherein the beam profiling apparatus measures the beam current across a width of the ion beam concurrent with the translation, therein defining a time and position dependent beam current profile of the ion beam. A beam monitoring apparatus is configured to measure the ion beam current at an edge of the ion beam over the predetermined time, therein defining a time dependent ion beam current, and a controller determines a time independent ion beam profile by dividing the time and position dependent beam current profile of the ion beam by the time dependent ion beam current, therein by cancelling fluctuations in ion beam current over the predetermined time.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: January 13, 2015
    Assignee: Axcelis Technologies, Inc.
    Inventor: Shu Satoh
  • Patent number: 8933415
    Abstract: One embodiment of a particle accelerator includes: a vacuum container with its inside evacuated to produce vacuum, the vacuum container being formed with a laser beam entrance window for allowing a laser beam to enter; a target arranged in the vacuum container so as to be irradiated with a laser beam to generate ions; and a condenser lens for focusing the laser beam onto the target. The condenser lens is arranged at the laser beam entrance window of the vacuum container, and takes a role of a vacuum bulkhead.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 13, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akiko Kakutani, Takayuki Sako, Kiyokazu Sato, Yoshiharu Kanai, Takeshi Yoshiyuki, Tsutomu Kurusu
  • Publication number: 20150008334
    Abstract: The present disclosure relates to a gas field ion source comprising a housing, an electrically conductive tip arranged within the housing, a gas supply for supplying one or more gases to the housing, wherein the one or more gases comprise neon or a noble gas with atoms having a mass larger than neon, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole. A surface of the extractor electrode facing the tip can be made of a material having a negative secondary ion sputter rate of less than 10?5 per incident neon ion.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 8, 2015
    Inventors: John A. Notte, IV, FHM-Faridur Rahman, Weijie Huang, Shawn McVey
  • Publication number: 20150008333
    Abstract: The disclosure relates to a method of operating a gas field ion beam system in which the gas field ion beam system comprises an external housing, an internal housing, arranged within the external housing, an electrically conductive tip arranged within the internal housing, a gas supply for supplying one or more gases to the internal housing, the gas supply having a tube terminating within the internal housing, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole into the external housing. The method comprises the step of regularly heating the external housing, the internal housing, the electrically conductive tip, the tube and the extractor electrode to a temperature of above 100° C.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 8, 2015
    Inventors: John A. Notte, IV, Weijie Huang, FHM-Faridur Rahman, Shawn McVey
  • Publication number: 20150008320
    Abstract: An ion source and an ion guide chamber are provided. The ion guide chamber having a gas flow, the gas flow having a longitudinal velocity and a transverse velocity. The ion guide chamber having an exit aperture and at least one ion guide. The at least one ion guide having an entrance end and an exit end with an exit cross-section wherein the exit cross-section is sized to be smaller in area than the entrance cross-section. The at least one ion guide having a plurality of elongated electrodes wherein a gap between the elongated electrodes and the shape of the elongated electrodes in the vicinity of the gap are essentially the same along the length of the at least one ion guide for confining the ions in the vicinity of the gap by a combination of the transverse velocity of the gas and the RF voltage.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 8, 2015
    Inventor: Alexandre V. Loboda
  • Patent number: 8927943
    Abstract: The present invention relates to a device for obtaining the ion source of a mass spectrometer using an ultraviolet diode and a CEM module, having the purpose of inducing initial electron emission using a CEM module and by radiating ultraviolet photons emitted from the ultraviolet diode to the entrance of the CEM module to obtain a large amount of amplified electron beams from the exit and to produce electron beams the emission times of which are accurately controlled at low temperature and at low power.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: January 6, 2015
    Assignee: Korea Basic Science Institute
    Inventors: Mo Yang, Seung Yong Kim, Hyun Sik Kim
  • Patent number: 8927929
    Abstract: An ionization chamber side voltage contact point is formed so as to protrude from the compartment in the ionization chamber, a mass spectrometric unit side voltage contact point 92 is formed in the hole created in the housing of the mass spectrometric unit, and a predetermined distance is provided between the inner periphery of the hole and the outer periphery of the mass spectrometric unit side voltage contact point in the structure, which allows the ionization chamber side voltage contact point to be inserted into the hole so to be connected to the mass spectrometric unit side voltage contact point when the ionization chamber is in the analysis position and allows the ionization chamber side voltage contact point to be pulled out from the hole so as to be disconnected from the mass spectrometric unit side voltage contact point the ionization chamber is in the maintenance position.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: January 6, 2015
    Assignee: Shimadzu Corporation
    Inventor: Tomohito Nakano
  • Patent number: 8927942
    Abstract: A ion source comprises: a chamber, an injection to inject matter into the chamber, wherein said matter comprises at least a first species, a tip with an apex located in the chamber, wherein the apex has a surface made of a metallic second species, a generator to generate ions of said species, and a regulation system adapted to set operative conditions of the chamber to alternatively generate ions from the gaseous first species, and ions from the non-gaseous metallic second species.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: January 6, 2015
    Assignees: Centre National de la Recherche Scientifique—CNRS, Universite Claude Bernard Lyon
    Inventors: Jacques Gierak, Nicolas Allemandou, Klaus Hasselbach, Jean-Paul Leggeri, Guillaume Donnier-Valentin, Stephen Purcell, Pauline Gavand
  • Publication number: 20150001388
    Abstract: An ion source for a mass spectrometer is disclosed comprising an ionisation device which emits a stream of droplets and one or more ultrasonic transmitters which create one or more acoustic standing waves. The acoustic standing waves may be used to further nebulise the stream of droplets and induce internal mixing of the droplets.
    Type: Application
    Filed: November 22, 2012
    Publication date: January 1, 2015
    Inventors: Michael Raymond Morris, Steven Derek Pringle, Keith Richardson
  • Publication number: 20150001389
    Abstract: In an electrostatic spray ionization method for spraying a liquid layer from an insulating plate 2, the plate is arranged between two electrodes 1, 4. A constant high voltage power supply 3 is provided and an electric circuit is used to charge and discharge locally a surface of the liquid layer 7 on the insulating plate 2 by applying the power supply between the electrodes 1, 4.
    Type: Application
    Filed: January 4, 2013
    Publication date: January 1, 2015
    Inventors: Hubert Hugues Girault, Baohong Liu, Yu Lu, Liang Qiao, Romain Sartor, Elena Tobolkina
  • Patent number: 8920849
    Abstract: A skin treatment method which includes ionizing oxygen and then mixing the ionized oxygen with saline solution to produce an energized saline solution is disclosed. The method further includes applying the energized saline solution to the skin as a mist-like spray to treat the skin. The system used to carry out the method includes an oxygen concentrator for generating oxygen and an ionizer for imparting an electric charge to the oxygen to produce ionized oxygen. The system also includes a bag of saline solution as well as a peristaltic pump for pumping the saline solution from the bag to a spray nozzle mounted in a handheld wand. The concentrator further includes apparatus for pumping or delivering the oxygen and ultimately the ionized oxygen to the spray nozzle. The spray nozzle mixes and atomizes the ionized oxygen and saline solution to produce a spray-like mist of the same which is then applied to an individual's skin.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: December 30, 2014
    Inventors: Kenneth P. Callison, Nelson McNulty
  • Patent number: 8916834
    Abstract: A closed plasma channel (“CPC”) superconductor which, in a first embodiment, is comprised of an elongated, close-ended vacuum conduit comprising a cylindrical wall having a longitudinal axis and defining a transmission space for containing an ionized gas of vapor plasma (hereinafter “plasma components”), the plasma components being substantially separated into regionalized channels parallel to the longitudinal axis in response to a static magnetic field produced within the transmission space. Each channel is established along the entire length of the transmission space. At least one channel is established comprised primarily of free-electrons which provide a path of least resistance for the transmission of energy therethrough. Ionization is established and maintained by the photoelectric effect of a light source of suitable wavelength to produce the most conductive electrical transmission medium.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: December 23, 2014
    Assignee: Glenn Lane Family Limited Liability Limited Partnership
    Inventor: Glenn E. Lane
  • Patent number: 8907301
    Abstract: A gas mixture method for generating an ion beam is provided here. By dynamically tuning the mixture ratio of the gas mixture, lifetime of the ion source of an ion implanter can be prolonged. Accordingly, quality of ion beam can be maintained and maintenance fee is reduced.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: December 9, 2014
    Assignee: Advanced Ion Beam Technology, Inc.
    Inventors: Koulin Hu, Zhimin Wan, Wei-Cheng Lin
  • Patent number: 8907299
    Abstract: The present disclosure provides a method of manufacturing film member for laser-driven ion acceleration, a film target, and a method of manufacturing the same, so that only the film member exists at a laser focusing point on the film target, allowing repeated ion acceleration from the film member by focusing high power laser beams thereon. The method includes preparing a film member solution containing a film material to be used for laser-driven ion acceleration; forming a film member on a base substrate by using the film member solution; and separating the film member from the base substrate by dipping the base substrate having the film member formed thereon into a film parting solvent.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 9, 2014
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Il Woo Choi, Jongmin Lee, Chang-Lyoul Lee, KeeHwan Nam, I Jong Kim, Ki Hong Pae
  • Patent number: 8907300
    Abstract: An ion source may include a chamber configured to house a plasma comprising ions to be directed to a substrate and an extraction power supply configured to apply an extraction terminal voltage to the plasma chamber with respect to a voltage of a substrate positioned downstream of the chamber. The system may further include a boundary electrode voltage supply configured to generate a boundary electrode voltage different than the extraction terminal voltage, and a boundary electrode disposed within the chamber and electrically coupled to the boundary electrode voltage supply, the boundary electrode configured to alter plasma potential of the plasma when the boundary electrode voltage is received.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 9, 2014
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Svetlana B. Radovanov, Ludovic Godet, Tyler Rockwell, Chris Campbell
  • Publication number: 20140353518
    Abstract: An insulation structure provided among a plurality of electrodes for extraction of an ion beam from a plasma generating section is provided. The insulation structure includes an insulation member including a first part connected to a first electrode and a second part connected to a second electrode and configured to support the first electrode to the second electrode, a first cover surrounding at least a part of the first part to protect the first part from contamination particles, and a second cover surrounding at least a part of the second part to protect the second part from contamination particles. At least one of the first part and the second part is made of a machinable ceramic or a porous ceramic.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: SEN CORPORATION
    Inventor: Masateru Sato
  • Patent number: 8901524
    Abstract: An extreme ultraviolet light source apparatus generating an extreme ultraviolet light from plasma generated by irradiating a target material with a laser light within a chamber, and controlling a flow of ions generated together with the extreme ultraviolet light using a magnetic field or an electric field, the extreme ultraviolet light source apparatus comprises an ion collector device collecting the ion via an aperture arranged at a side of the chamber, and an interrupting mechanism interrupting movement of a sputtered particle in a direction toward the aperture, the sputtered particle generated at an ion collision surface collided with the ion in the ion collector device.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: December 2, 2014
    Assignee: Gigaphoton Inc.
    Inventors: Takeshi Asayama, Kouji Kakizaki, Akira Endo, Shinji Nagai
  • Patent number: 8895916
    Abstract: In various embodiments of the invention, a cargo container can be monitored at appropriate time intervals to determine that no controlled substances have been shipped with the cargo in the container. The monitoring utilizes reactive species produced from an atmospheric analyzer to ionize analyte molecules present in the container which are then analyzed by an appropriate spectroscopy system. In an embodiment of the invention, a sorbent surface can be used to absorb, adsorb or condense analyte molecules within the container whereafter the sorbent surface can be interrogated with the reactive species to generate analyte species characteristic of the contents of the container.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: November 25, 2014
    Assignee: Ionsense, Inc.
    Inventor: Brian D Musselman
  • Patent number: 8896239
    Abstract: The invention comprises a charged particle beam injection method and apparatus used in conjunction with multi-axis charged particle radiation therapy of cancerous tumors. The negative ion beam source includes a negative ion beam source, vacuum system, an ion beam focusing lens, and/or a tandem accelerator. The negative ion beam source uses electric field lines for focusing a negative ion beam. The negative ion source plasma chamber includes a magnetic material, which provides a magnetic field barrier between a high temperature plasma chamber and a low temperature plasma region. The injection system vacuum system and a synchrotron vacuum system are separated by a conversion foil, where negative ions are converted to positive ions. The foil is sealed to the edges of the vacuum tube providing for a higher partial pressure in the injection system vacuum chamber and a lower pressure in the synchrotron vacuum system.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: November 25, 2014
    Inventor: Vladimir Yegorovich Balakin
  • Patent number: 8895919
    Abstract: A measuring part 67 measures the potential of a collecting electrode 66 having collected positive and negative ions respectively generated by ion generating parts 61 of ion generators 6a and 6b and ion generating parts 62 of ion generators 6c and 6d. In the judgment of the presence or absence of ions, the ion generators 6a and 6b and the ion generators 6c and 6d are alternately turned ON/OFF. In ion judgment 1, ON/OFF is performed 6 times with a period of 10 seconds. In ion judgment 2, ON/OFF is performed 10 times with a period of 1 second. Then, when the difference (the amount of change) between the maximum value and the minimum value of the output voltage of the measuring part 67 is greater than a given threshold value, the presence of ions is concluded respectively.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: November 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masafumi Nishino
  • Patent number: 8883620
    Abstract: A novel process for using enriched and highly enriched dopant gases is provided herein that eliminates the problems currently encountered by end-users from being able to realize the process benefits associated with ion implanting such dopant gases. For a given flow rate within a prescribed range, operating at a reduced total power level of the ion source is designed to reduce the ionization efficiency of the enriched dopant gas compared to that of its corresponding non-enriched or lesser enriched dopant gas. The temperature of the source filament is also reduced, thereby mitigating the adverse effects of fluorine etching and ion source shorting when a fluorine-containing enriched dopant gas is utilized. The reduced levels of total power in combination with a lower ionization efficiency and lower ion source temperature can interact synergistically to improve and extend ion source life, while beneficially maintaining a beam current that does not unacceptably deviate from previously qualified levels.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: November 11, 2014
    Assignee: Praxair Technology, Inc.
    Inventors: Ashwini K. Sinha, Ching I Li
  • Publication number: 20140326896
    Abstract: An ion implantation system and process, in which the performance and lifetime of the ion source of the ion implantation system are enhanced, by utilizing isotopically enriched dopant materials, or by utilizing dopant materials with supplemental gas(es) effective to provide such enhancement.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 6, 2014
    Inventors: Robert Kaim, Joseph D. Sweeney, Anthony M. Avila, Richard S. Ray
  • Publication number: 20140326872
    Abstract: An electrospray system comprises a liquid extraction surface sampling probe. The probe comprises a probe body having a liquid inlet and a liquid outlet, and having a liquid extraction tip. A solvent delivery conduit is provided for receiving solvent liquid from the liquid inlet and delivering the solvent liquid to the liquid extraction tip. An open liquid extraction channel extends across an exterior surface of the probe body from the liquid extraction tip to the liquid outlet. An electrospray emitter tip is in liquid communication with the liquid outlet of the liquid extraction surface sampling probe. A system for analyzing samples, a liquid junction surface sampling system, and a method of analyzing samples are also disclosed.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 6, 2014
    Inventor: Gary J. VAN BERKEL
  • Publication number: 20140319369
    Abstract: An ion source and method of cleaning are disclosed. One or more heating units are placed in close proximity to the inner volume of the ion source, so as to affect the temperature within the ion source. In one embodiment, one or more walls of the ion source have recesses into which heating units are inserted. In another embodiment, one or more walls of the ion source are constructed of a conducting circuit and an insulating layer. By utilizing heating units near the ion source, it is possible to develop new methods of cleaning the ion source. Cleaning gas is flowed into the ion source, where it is ionized, either by the cathode, as in normal operating mode, or by the heat generated by the heating units. The cleaning gas is able to remove residue from the walls of the ion source more effectively due to the elevated temperature.
    Type: Application
    Filed: July 8, 2014
    Publication date: October 30, 2014
    Inventors: Bon-Woong Koo, Christopher R. Campbell, Craig R. Chaney, Robert C. Lindberg, Wilhelm P. Platow, Alexander S. Perel
  • Publication number: 20140322902
    Abstract: A novel process for using enriched and highly enriched dopant gases is provided herein that eliminates the problems currently encountered by end-users from being able to realize the process benefits associated with ion implanting such dopant gases. For a given flow rate within a prescribed range, operating at a reduced total power level of the ion source is designed to reduce the ionization efficiency of the enriched dopant gas compared to that of its corresponding non-enriched or lesser enriched dopant gas. The temperature of the source filament is also reduced, thereby mitigating the adverse effects of fluorine etching and ion source shorting when a fluorine-containing enriched dopant gas is utilized. The reduced levels of total power in combination with a lower ionization efficiency and lower ion source temperature can interact synergistically to improve and extend ion source life, while beneficially maintaining a beam current that does not unacceptably deviate from previously qualified levels.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 30, 2014
    Inventors: Ashwini K. Sinha, Ching I. Li
  • Publication number: 20140312245
    Abstract: The present invention provides a plasma ion beam system that includes multiple gas sources and that can be used for performing multiple operations using different ion species to create or alter submicron features of a work piece. The system preferably uses an inductively coupled, magnetically enhanced ion beam source, suitable in conjunction with probe-forming optics sources to produce ion beams of a wide variety of ions without substantial kinetic energy oscillations induced by the source, thereby permitting formation of a high resolution beam.
    Type: Application
    Filed: April 8, 2014
    Publication date: October 23, 2014
    Applicant: FEI Company
    Inventors: Noel Smith, Clive D. Chandler, Mark W. Utlaut, Paul P. Tesch, David William Tuggle
  • Publication number: 20140306121
    Abstract: Ion sources, systems and methods are disclosed.
    Type: Application
    Filed: May 23, 2014
    Publication date: October 16, 2014
    Applicant: Carl Zeiss Microscopy, LLC
    Inventors: Billy W. Ward, John A. Notte, IV, Louis S. Farkas, III, Randall G. Percival, Raymond Hill, Klaus Edinger, Lars Markwort, Dirk Aderhold, Ulrich Mantz
  • Patent number: 8859986
    Abstract: The invention generally relates to systems and methods for mass spectrometry analysis of microorganisms in samples.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: October 14, 2014
    Assignee: Purdue Research Foundation
    Inventors: Robert G. Cooks, Ahmed M. Hamid, Alan K. Jarmusch, Zheng Ouyang
  • Publication number: 20140299759
    Abstract: A corona discharge ionizer device which emits ions generated by corona discharge to a gas flow to be ionized includes a discharge electrode having a pin configured tip portion. A second grid electrode positioned at a spaced distance from the discharge electrode is provided. The grid electrode is preferably formed from a sheet configured material which has at least one hole formed therein adapted and configured to permit the gas flow to pass therethrough. A power supply is coupled to the discharge electrode and grid electrode configured cause ion emission from the discharge electrode. The power supply is preferably an alternating current power supply configured to produce an alternating electric field region in close proximity to the tip portion of the discharge electrode sufficient to cause avalanche breakdown in the gas flowing in close proximity to the tip portion of the discharge electrode.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 9, 2014
    Applicant: OWLSTONE LIMITED
    Inventors: Max Allsworth, Matthew Hart, John Somerville
  • Publication number: 20140291545
    Abstract: A closed plasma channel (“CPC”) superconductor which, in a first embodiment, is comprised of an elongated, close-ended vacuum conduit comprising a cylindrical wall having a longitudinal axis and defining a transmission space for containing an ionized gas of vapor plasma (hereinafter “plasma components”), the plasma components being substantially separated into regionalized channels parallel to the longitudinal axis in response to a static magnetic field produced within the transmission space. Each channel is established along the entire length of the transmission space. At least one channel is established comprised primarily of free-electrons which provide a path of least resistance for the transmission of energy therethrough. Ionization is established and maintained by the photoelectric effect of a light source of suitable wavelength to produce the most conductive electrical transmission medium.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventor: GLENN E. LANE
  • Patent number: 8847173
    Abstract: To provide a gas field ion source having a high angular current density, the gas field ion source is configured such that at least a base body of an emitter tip configuring the gas field ion source is a single crystal metal, such that the apex of the emitter tip is formed into a pyramid shape or a cone shape having a single atom at the top, and such that the extraction voltage in the case of ionizing helium gas by the single atom is set to 10 kV or more.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: September 30, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yoshimi Kawanami, Shinichi Matsubara, Hironori Moritani, Noriaki Arai, Hiroyasu Shichi, Tomihiro Hashizume, Hiroyasu Kaga, Norihide Saho, Hiroyuki Muto, Yoichi Ose
  • Publication number: 20140264000
    Abstract: A method of and apparatus for controlling the temperature of an inductively coupled or microwave induced plasma for optical emission spectrometry or mass spectrometry in which the intensities of two spectral lines of radiation emitted by the plasma are measured, and the power provided to sustain the plasma is adjusted so that the ratio of the intensities remains substantially constant.
    Type: Application
    Filed: November 8, 2013
    Publication date: September 18, 2014
    Applicant: Thermo Electron Manufacturing Limited
    Inventor: Stephen HARTWELL
  • Publication number: 20140264010
    Abstract: A mass spectrometer is disclosed. The mass spectrometer may include an ion trap configured to trap and analyze an ionized sample. A first aperture may be provided having a first diameter, and a second aperture may be provided having a second diameter. The first aperture may be configured to receive electrons for the purpose of ionizing sample ions within the ion trap. The second aperture may be configured to receive photons for the purpose of ionizing sample ions within the ion trap.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: 1ST DETECT CORPORATION
    Inventors: Abrar RIAZ, David RAFFERTY, James WYLDE
  • Publication number: 20140263993
    Abstract: An ion source for use in a radiation generator includes a sealed envelope containing an ionizable gas therein. The ion source also includes a RF antenna external to the sealed envelope, the RF antenna to transmit time-varying electromagnetic fields within the sealed envelope for producing ions from the ionizable gas. There is at least one extractor within the sealed envelope having a potential such that the ions are attracted toward the at least one extractor.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Schlumberger Technology Corporation
  • Patent number: 8835870
    Abstract: Provided is an ion beam treatment apparatus including the target. The ion beam treatment apparatus includes a substrate having a first surface and a second surface opposed to the first surface, and including a cone type hole decreasing in width from the first surface to the second surface to pass through the substrate, wherein an inner wall of the substrate defining the cone type hole is formed of a metal, an ion generation thin film attached to the second surface to generate ions by a laser beam incident into the cone type hole through the first surface and strengthen, and a laser that emits a laser beam to generate ions from the ion generation thin film and project the ions onto a tumor portion of a patient. The laser beam incident into the cone type hole is focused by the cone type hole and is strengthened.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: September 16, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Moon Youn Jung, Hyeon-Bong Pyo, Hyung Ju Park, Seunghwan Kim, Seon Hee Park, Dong-Ho Shin, Hwang Woon Lee
  • Patent number: 8835869
    Abstract: Ion sources and methods for generating an ion bean with a controllable ion current density distribution. The ion source includes a discharge chamber having an optical grid position proximate at a first end and a re-entrant vessel positioned proximate a second end that opposes the first end. A plasma shaper extends from the re-entrant vessel and into the plasma discharge chamber. A position of the plasma shaper is adjustable relative to the grid-based ion optic such that the plasma shaper may operably change a plasma density distribution within the discharge chamber.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: September 16, 2014
    Assignee: Veeco Instruments, Inc.
    Inventors: Rustam Yevtukhov, Boris L. Druz, Viktor Kanarov, Alan V. Hayes
  • Patent number: 8835884
    Abstract: A charged particle beam apparatus including a charged particle emission gun with which cleaning of a tip is possible without stopping the operation of the charged particle emission gun for a long time and without heating the tip. The charged particle emission gun includes a cleaning photo-irradiation apparatus that generates ultraviolet light or infrared light to irradiate a tip, and an optical fiber for guiding the ultraviolet light or the infrared light toward the tip. The cleaning photo-irradiation apparatus generates ultraviolet light or an infrared light with a predetermined wavelength and intensity to desorb a molecule adsorbed on the tip through photon stimulated desorption, or to desorb a molecule adsorbed on the tip through photon stimulated desorption and ionize the desorbed molecule.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: September 16, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventor: Noriaki Arai
  • Patent number: 8835871
    Abstract: An electron cyclotron resonance ion source device includes a plasma chamber configured to contain a plasma; a high-frequency system configured to transmit a high-frequency wave into the chamber; a magnetic field generator configured to generate a magnetic field in the chamber; an accelerating tube including an isolating structure and an extraction system, the magnetic field generator for generating a magnetic field being entirely located downstream of the isolating structure.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: September 16, 2014
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Olivier Delferriere, Olivier Tuske, Francis Harrault
  • Patent number: 8835838
    Abstract: An ion source is formed by a chamber 2. A capillary tube 6 forms an inlet to the chamber. A heater 7 is associated with the capillary tube to heat air drawn into the chamber. An electrode 4 is provided in the chamber and maintained at a voltage in the range 100 to 500 volts. In use the source is connected to an analyzer such as a mass spectrometer 10. The capillary tube is open to the atmosphere. Pressure in the chamber is reduced, and pressure in the analyzer is further reduced. An electrical potential is applied to the electrode to create a discharge within the chamber. Ionization of air molecules within the chamber leads to ionization of any sample molecules present in the chamber. Ions are swept into the analyzer for analysis.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: September 16, 2014
    Assignee: Scientific Analysis Instruments Limited
    Inventors: Victor Carl Parr, Alex Pollard
  • Patent number: RE45386
    Abstract: The present invention relates to inductively coupled plasma mass spectrometry (ICPMS) in which a collision cell is employed to selectively remove unwanted artefact ions from an ion beam by causing them to interact with a reagent gas. The present invention provides a first evacuated chamber (6) at high vacuum located between an expansion chamber (3) and a second evacuated chamber (20) containing the collision cell (24). The first evacuated chamber (6) includes a first ion optical device (17). The collision cell (24) contains a second ion optical device (25). The provision of the first evacuated chamber (5) reduces the gas load on the collision cell (24), by minimising the residual pressure within the collision cell (24) that is attributable to the gas load from the plasma source (1). This serves to minimise the formation, or re-formation, of unwanted artefact ions in the collision cell (24).
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: February 24, 2015
    Assignee: Thermo Fisher Scientific (Bremen) GmbH
    Inventor: Philip Marriott