Patents by Inventor J. Lowe

J. Lowe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TECHNIQUES FOR REDUCING AN ELECTRICAL STRESS IN AN ACCELERATION/DECELERAION SYSTEM
    Publication number: 20090145228
    Abstract: Techniques for reducing an electrical stress in a acceleration/deceleration system are disclosed. In one particular exemplary embodiment, the techniques may be realized as an acceleration/deceleration system. The acceleration/deceleration system may comprise an acceleration column including a plurality of electrodes having apertures through which a charged particle beam may pass. The acceleration/deceleration system may also comprise a plurality of voltage grading components respectively electrically coupled to the plurality of electrodes. The acceleration/deceleration system may further comprise a plurality of insulated conductors disposed proximate the plurality of voltage grading components to modify an electrical field about the plurality of voltage grading components.
    Type: Application
    Filed: January 2, 2008
    Publication date: June 11, 2009
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Kasegn D. TEKLETSADIK, Russell J. LOW
  • Techniques for reducing contamination during ion implantation
    Patent number: 7528391
    Abstract: Techniques for reducing contamination during ion implantation is disclosed. In one particular exemplary embodiment, the techniques may be realized by an apparatus for reducing contamination during ion implantation. The apparatus may comprise a platen to hold a workpiece for ion implantation by an ion beam. The apparatus may also comprise a mask, located in front of the platen, to block the ion beam and at least a portion of contamination ions from reaching a first portion of the workpiece during ion implantation of a second portion of the workpiece. The apparatus may further comprise a control mechanism, coupled to the platen, to reposition the workpiece to expose the first portion of the workpiece for ion implantation.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: May 5, 2009
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventor: Russell J. Low
  • TECHNIQUES FOR CONTROLLING A CHARGED PARTICLE BEAM
    Publication number: 20090085504
    Abstract: Techniques for controlling a charged particle beam are disclosed. In one particular exemplary embodiment, the techniques may be realized as a charged particle acceleration/deceleration system. The charged particle acceleration/deceleration system may comprise an accelerator column, which may comprise a plurality of electrodes. The plurality of electrodes may have apertures through which a charged particle beam may pass. The charged particle acceleration/deceleration system may also comprise a voltage grading system. The voltage grading system may comprise a first fluid reservoir and a first fluid circuit. The first fluid circuit may have conductive connectors connecting to at least one of the plurality of electrodes. The voltage grading system may further comprise fluid in the first fluid circuit. The fluid may have an electrical resistance.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 2, 2009
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Piotr R. Lubicki, Russell J. Low, Stephen E. Krause, Frank Sinclair
  • TECHNIQUES FOR MAKING HIGH VOLTAGE CONNECTIONS
    Publication number: 20090078554
    Abstract: Techniques for making high voltage connections are disclosed. In one particular exemplary embodiment, the techniques may be realized as an electrical switch. The electrical switch may comprise a component extending from a first electrical contact to a second electrical contact. The component may also comprise a non-conductive section and a conductive section. In a first mode of operation, at least a portion of the non-conductive section may be positioned between the two electrical contacts to insulate the two electrical contacts. In a second mode of operation, the conductive section may be positioned between the two electrical contacts to connect the two electrical contacts.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Douglas E. May, Kasegn D. Tekletsadik, Eric Hermanson, Piotr R. Lubicki, Russell J. Low, Joseph C. Olson, Stephen E. Krause
  • TECHNIQUES FOR CONTROLLING A CHARGED PARTICLE BEAM
    Publication number: 20090072163
    Abstract: Techniques for controlling a charged particle beam are disclosed. In one particular exemplary embodiment, the techniques may be realized as a charged particle acceleration/deceleration system. The charged particle acceleration/deceleration system may comprise an acceleration column. The acceleration column may comprise a plurality of electrodes having apertures through which a charged particle beam may pass. The charged particle acceleration/deceleration system may also comprise a plurality of resistors electrically coupled to the plurality of electrodes. The charged particle acceleration/deceleration system may further comprise a plurality of switches electrically coupled to the plurality of electrodes and the plurality of resistors, each of the plurality of switches may be configured to be selectively switched respectively in a plurality of operation modes.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 19, 2009
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Piotr R. Lubicki, Russell J. Low, Joseph C. Olson, Anthony Renau
  • INSULATED CONDUCTING DEVICE WITH MULTIPLE INSULATION SEGMENTS
    Publication number: 20090050347
    Abstract: Insulated conducting devices and related methods are disclosed. An insulated conducting device for a voltage structure comprises: a conductor connected to a voltage; and multiple insulation segments enclosing the conductor, the multiple insulation segments interfacing with one another.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 26, 2009
    Inventors: Kasegn D. Tekletsadik, Steve Krause, Eric Hermanson, Russell J. Low
  • FLEXIBLE TUBE FOR CARTRIDGE FILTER
    Publication number: 20090054907
    Abstract: Embolic protection filtering devices and methods of making and using the same. The present invention may include an embolic protection filtering device including a filter cartridge that is slidable over medical devices, for example, guidewires. The filter cartridge may have a filter coupled thereto and may have desirable flexibility and trackability characteristics.
    Type: Application
    Filed: October 29, 2008
    Publication date: February 26, 2009
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Brian J. Lowe, Alan D. Eskuri
  • INTERFACING TWO INSULATION PARTS IN HIGH VOLTAGE ENVIRONMENT
    Publication number: 20090047801
    Abstract: Methods of interfacing parts in a high voltage environment and related structures are disclosed. A method comprises: providing an insulation medium between a first part and a second part in a high voltage environment; and interfacing the first part and the second part by compressing the first part and the second part against the insulation medium.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 19, 2009
    Inventors: Russell J. Low, Kasegn D. Tekletsadik, Anthony Renau, Piotr R. Lubicki, D. Jeffrey Lischer, Steve Krause, Eric Hermanson, Doug E. May
  • Technique for improving performance and extending lifetime of indirectly heated cathode ion source
    Patent number: 7491947
    Abstract: A technique improving performance and lifetime of indirectly heated cathode ion sources is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving performance and lifetime of an indirectly heated cathode (IHC) ion source in an ion implanter. The method may comprise maintaining an arc chamber of the IHC ion source under vacuum during a maintenance of the ion implanter, wherein no gas is supplied to the arc chamber. The method may also comprise heating a cathode of the IHC ion source by supplying a filament with a current. The method may further comprise biasing the cathode with respect to the filament at a current level of 0.5-5 A without biasing the arc chamber with respect to the cathode. The method additionally comprise keeping a source magnet from producing a magnetic field inside the arc chamber.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: February 17, 2009
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Eric R. Cobb, Russell J. Low, Craig R. Chaney, Leo V. Klos
  • Techniques for preventing parasitic beamlets from affecting ion implantation
    Patent number: 7482598
    Abstract: Techniques for preventing parasitic beamlets from affecting ion implantation are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for preventing parasitic beamlets from affecting ion implantation. The apparatus may comprise a controller that is configured to scan a spot beam back and forth, thereby forming an ion beam spanning a predetermined width. The apparatus may also comprise an aperture mechanism that, if kept stationary, allows the spot beam to pass through. The apparatus may further comprise a synchronization mechanism, coupled to the controller and the aperture mechanism, that is configured to cause the aperture mechanism to move in synchronization with the scanned spot beam, allowing the scanned spot beam to pass through but blocking one or more parasitic beamlets associated with the spot beam.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: January 27, 2009
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Russell J. Low, Jonathan Gerald England, Stephen E. Krause, Eric D. Hermanson
  • Wafer charge monitoring
    Patent number: 7476877
    Abstract: A charge monitoring system may include a platen having a surface configured to accept a wafer thereon, and a charge monitor disposed relative to the platen so that an ion beam simultaneously strikes a portion of the charge monitor and a portion of the wafer. The charge monitor is configured to provide a charge monitor signal representative of a charge on a surface of the wafer when the ion beam simultaneously strikes the portion of the charge monitor and the portion of the wafer. The charge monitor signal may depend, at least in part, on a beam potential of the ion beam.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: January 13, 2009
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Russell J. Low, George M. Gammel, Peter F. Kurunczi, Eric Cobb
  • Techniques for reducing effects of photoresist outgassing
    Patent number: 7476878
    Abstract: Techniques for reducing effects of photoresist outgassing are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for reducing effects of photoresist outgassing in an ion implanter. The apparatus may comprise a drift tube located between an end-station and an upstream beamline component. The apparatus may also comprise a first variable aperture between the drift tube and the end-station. The apparatus may further comprise a second variable aperture between the drift tube and the upstream beamline component. The first variable aperture and the second variable aperture can be adjusted to facilitate differential pumping.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: January 13, 2009
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Russell J. Low, Jonathan Gerald England, Stephen E. Krause, Eric D. Hermanson
  • Embolic protection filter delivery sheath
    Patent number: 7476236
    Abstract: Embolic protection sheath and method of using the same. In some embodiments, the present invention includes an elongate shaft, an embolic protection filter coupled to the shaft, and a sheath disposed over at least a portion of the shaft.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: January 13, 2009
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Brian J. Lowe, Robert L. Cassell, Andrew Forsberg, Colin P. Hart, Thomas Deyette, Jr.
  • Flexible tube for cartridge filter
    Patent number: 7459080
    Abstract: Embolic protection filtering devices and methods of making and using the same. The present invention may include an embolic protection filtering device including a filter cartridge that is slidable over medical devices, for example, guidewires. The filter cartridge may have a filter coupled thereto and may have desirable flexibility and trackability characteristics.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: December 2, 2008
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Brian J. Lowe, Alan D. Eskuri
  • Ion source configuration for production of ionized clusters, ionized molecules and ionized mono-atoms
    Patent number: 7459704
    Abstract: Ion sources and methods for generating molecular ions in a cold operating mode and for generating atomic ions in a hot operating mode are provided. In some embodiments, first and second electron sources are located at opposite ends of an arc chamber. The first electron source is energized in the cold operating mode, and the second electron source is energized in the hot operating mode. In other embodiments, electrons are directed through a hole in a cathode in the cold operating mode and are directed at the cathode in the hot operating mode. In further embodiments, an ion beam generator includes a molecular ion source, an atomic ion source and a switching element to select the output of one of the ion sources.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: December 2, 2008
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Joseph C. Olson, Anthony Renau, Donna L. Smatlak, Kurt Deckerlucke, Paul Murphy, Alexander S. Perel, Russell J. Low, Peter Kurunczi
  • Multi-Component Hydrogen Storage Material
    Publication number: 20080286196
    Abstract: A reversible hydrogen storage composition having an empirical formula of: Li(x+z)NxMgyBzHw where 0.4?x?0.8; 0.2?y?0.6; 0<z?0.4, x+y+z=1 and “w” varies from 0 to 2x+2y+4z. This composition shows greater low temperature reversible hydrogen storage compared to binary systems such as MgH2—LiNH2.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Inventors: Syed A. Faheem, Gregory J. Lewis, J.W. Adriaan Sachtler, John J. Low, David A. Lesch, Paul M. Dosek, Christopher M. Wolverton, Donald J. Siegel, Andrea C. Sudik, Jun Yang
  • Technique for improving ion implanter productivity
    Patent number: 7446326
    Abstract: A technique for improving ion implanter productivity is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving productivity of an ion implanter having an ion source chamber. The method may comprise supplying a gaseous substance to the ion source chamber, the gaseous substance comprising one or more reactive species for generating ions for the ion implanter. The method may also comprise stopping the supply of the gaseous substance to the ion source chamber. The method may further comprise supplying a hydrogen containing gas to the ion source chamber for a period of time after stopping the supply of the gaseous substance.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 4, 2008
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Craig R. Chaney, Russell J. Low, Jonathan Gerald England
  • Method and system for collecting meter readings in wireless transmissions from unlisted customers
    Publication number: 20080218378
    Abstract: An out-of-route collection capability is provided for an AMR data collection system of a type that collect readings within a geographic area using a radio. If a transmission is received from an out-of-route transmitter, its location is based on a geographic location of the data collector as the data collector receives data from the out-of-route transmitter. The location can further be determined by evaluating a received signal strength indicator (RSSI) for the transmission. The out-of-route transmitter is identified by association with a transmitter identification number. The out-of-route transmitters can be added to the route through operations at the central office.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 11, 2008
    Inventors: Bruce M. Bakken, David J. Lowe, Mark Lazar, Michele R. B. Malinowski
  • Polytetrafluoroethylene binding peptides and methods of use
    Publication number: 20080207872
    Abstract: Combinatorially generated peptides are provided that have binding affinity for Polytetrafluoroethylene (NY). The peptides may be used to deliver benefit agents to various PTFE surfaces.
    Type: Application
    Filed: December 1, 2006
    Publication date: August 28, 2008
    Inventors: Scott D. Cunningham, David J. Lowe, John P. O'Brien, Hong Wang, Antoinette E. Wilkins
  • METHOD FOR PREPARING PARA-HYDROXYSTYRENE BY BIOCATALYTIC DECARBOXYLATION OF PARA-HYDROXYCINNAMIC ACID IN A BIPHASIC REACTION MEDIUM
    Publication number: 20080182307
    Abstract: A biocatalytic method for preparing para-hydroxystyrene from para-hydroxycinnamic acid is described. The method uses an enzyme source having para-hydroxycinnamic acid decarboxylase activity to catalyze the decarboxylation of para-hydroxycinnamic acid in a biphasic reaction medium to produce para-hydroxystyrene, which is extracted into the organic phase of the biphasic reaction medium. The method results in a high yield of para-hydroxystyrene due to the decreased exposure of the enzyme source to the inhibitory product. The product is readily recovered from the extractant, or may be chemically derivatized directly in the extractant before recovery.
    Type: Application
    Filed: March 31, 2008
    Publication date: July 31, 2008
    Inventors: ARIE BEN-BASSAT, Sharon L. Haynie, David J. Lowe, Lisa L. Huang