Patents by Inventor Joseph C. Olson

Joseph C. Olson 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).

  • Patent number: 7820985
    Abstract: The present invention comprises a method for high tilt angle implantation, with angular precision not previously achievable. An ion beam, having a width and height dimension, is made up of a number of individual beamlets. These beamlets typically display a higher degree of parallelism in one of these two dimensions. Thus, to minimize angular error, the workpiece is tilted about an axis substantially perpendicular to the dimension having the higher degree of parallelism. The workpiece is then implanted at a high tilt angle and rotated about a line orthogonal to the surface of the workpiece. This process can be repeated until the high tilt implantation has been performed in all required regions.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 26, 2010
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Atul Gupta, Joseph C. Olson
  • Patent number: 7820986
    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: Grant
    Filed: September 13, 2007
    Date of Patent: October 26, 2010
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Piotr R. Lubicki, Russell J. Low, Joseph C. Olson, Anthony Renau
  • Patent number: 7812325
    Abstract: A system, method and program product for improving uniformity and angle control wafers being implanted. A system is provided that includes an end station for positioning a wafer being implanted, comprising: a platen for holding the wafer, wherein the platen is rotatable to provide wafer rotation; a housing for holding the platen, wherein the housing is rotatable about a first orthogonal axis to provide a first type of wafer tilt; a structure for supporting the housing, wherein the structure is rotatable about a second orthogonal axis to provide a second type of wafer tilt; and a control system which, during an implant process of the wafer, causes wafer rotation, the first type of wafer tilt, and the second type of wafer tilt.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: October 12, 2010
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: James Buonodono, Paul Murphy, Joseph C. Olson, Anthony Renau
  • Publication number: 20100116983
    Abstract: A ribbon beam mass analyzer having a first and second solenoid coils and steel yoke arrangement. Each of the solenoid coils have a substantially “racetrack” configuration defining a space through which an ion ribbon beam travels. The solenoid coils are spaced apart along the direction of travel of the ribbon beam. Each of the solenoid coils generates a uniform magnetic field to accommodate mass resolution of wide ribbon beams to produce a desired image of ions generated from an ion source.
    Type: Application
    Filed: November 11, 2009
    Publication date: May 13, 2010
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Victor Benveniste, James S. Buff, Frank Sinclair, Joseph C. Olson
  • Publication number: 20100098851
    Abstract: Techniques for atomic layer deposition (ALD) are disclosed. In one particular exemplary embodiment, the techniques may be realized as a system for ALD comprising a plurality of reactors in a stacked configuration, wherein each reactor comprises a wafer holding portion for holding a target wafer, a gas assembly coupled to the plurality of reactors and configured to provide at least one gas to at least one of the plurality of reactors, and an exhaust assembly coupled to the plurality of reactors and configured to exhaust the at least one gas from the at least one of the plurality of reactors. The gas assembly may further comprise a valve assembly coupled to each of the first gas inlet, the second gas inlet, and the third gas inlet, where the valve assembly is configured to selectively release at least one of the first gas, the second gas, and the third gas.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 22, 2010
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Shigemi MURAKAWA, Vikram Singh, George Papasouliotis, Joseph C. Olson, Paul J. Murphy, Gary E. Dickerson
  • Publication number: 20100090131
    Abstract: A method includes directing an ion beam at a plurality of differing incident angles with respect to a target surface of a substrate by tilting the substrate as the ion beam is distributed across the target surface to implant ions into a plurality of portions of the substrate, wherein each one of the plurality of differing incident angles is associated with a different one of the plurality of portions, measuring angle sensitive data from each of the plurality of portions of to the substrate, and determining an angle misalignment between the target surface and the ion beam incident on the target surface from the angle sensitive data.
    Type: Application
    Filed: December 17, 2009
    Publication date: April 15, 2010
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Atul GUPTA, Joseph C. Olson
  • Patent number: 7683347
    Abstract: A technique for improving ion implantation throughput and dose uniformity is disclosed. In one exemplary embodiment, a method for improving ion implantation throughput and dose uniformity may comprise measuring an ion beam density distribution in an ion beam. The method may also comprise calculating an ion dose distribution across a predetermined region of a workpiece that results from a scan velocity profile, wherein the scan velocity profile comprises a first component and a second component that control a relative movement between the ion beam and the workpiece in a first direction and a second direction respectively, and wherein the ion dose distribution is based at least in part on the ion beam density distribution. The method may further comprise adjusting at least one of the first component and the second component of the scan velocity profile to achieve a desired ion dose distribution in the predetermined region of the workpiece.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 23, 2010
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Atul Gupta, Anthony Renau, Donna Smatlak, Joseph C. Olson
  • Patent number: 7663125
    Abstract: An ion beam current uniformity monitor, ion implanter and related method are disclosed. In one embodiment, the ion beam current uniformity monitor includes an ion beam current measurer including a plurality of measuring devices for measuring a current of an ion beam at a plurality of locations; and a controller for maintaining ion beam current uniformity based on the ion beam current measurements by the ion beam current measurer.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: February 16, 2010
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: William G. Callahan, Morgan D. Evans, George M. Gammel, Norman E. Hussey, Gregg A. Norris, Joseph C. Olson
  • Patent number: 7655932
    Abstract: Techniques for providing ion source feed materials are disclosed. In one particular exemplary embodiment, the techniques may be realized as a container for supplying an ion source feed material. The container may comprise an internal cavity to be pre-filled with an ion source feed material. The container may also comprise an outer body configured to be removably loaded into a corresponding housing that is coupled to an ion source chamber via a nozzle assembly. The container may further comprise an outlet to seal in the pre-filled ion source feed material, the outlet being further configured to engage with the nozzle assembly to establish a flow path between the internal cavity and the ion source chamber. The container may be configured to be a disposable component.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: February 2, 2010
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Christopher R. Hatem, Craig R. Chaney, Eric R. Cobb, Joseph C. Olson, Chris Campbell
  • Publication number: 20100019141
    Abstract: This energy contamination monitor has an ionization apparatus configured to ionize the neutral particles in an ion beam. Neutral particles are ionized, separated based at least in part upon different transit times over a distance, and measured with the Faraday electrode based at least in part upon the different transit times. The energy contamination monitor can distinguish between fast and slow neutral particles.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 28, 2010
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Joseph C. Olson, Robert L. Badzey
  • Patent number: 7642529
    Abstract: A method includes directing an ion beam at a plurality of differing incident angles with respect to a target surface of a substrate to implant ions into a plurality of portions of the substrate, wherein each one of the plurality of differing incident angles is associated with a different one of the plurality of portions, measuring angle sensitive data from each of the plurality of portions of the substrate, and determining an angle misalignment between the target surface and the ion beam incident on the target surface from the angle sensitive data. A method of determining a substrate miscut is also provided.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: January 5, 2010
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Atul Gupta, Joseph C. Olson
  • Patent number: 7622722
    Abstract: An ion implantation device with a dual pumping mode and method thereof for use in producing atomic or molecular ion beams are disclosed. In one particular exemplary embodiment, an ion implantation apparatus is provided for controlling a pressure within an ion beam source housing corresponding to an ion beam species being produced. The ion implantation apparatus may include the ion beam source housing comprising a plurality of species for use in ion beam production. A pumping section may also be included for evacuating gas from the ion beam source housing. A controller may further be included for controlling the pumping section according to pumping parameters corresponding to a species of the plurality of species being used for ion beam production.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: November 24, 2009
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Jonathan Gerald England, Christopher R. Hatem, Jay Thomas Scheuer, Joseph C. Olson
  • Publication number: 20090206273
    Abstract: An apparatus and a method for detecting particle beam characteristics are disclosed. In one embodiment, the apparatus may have a body including a first end and second end and at least one detector between the first and second ends. The apparatus may have a transparent state where a portion of the particles entering the apparatus may pass through the apparatus. The apparatus may also have a minimum transparency state where substantially all of the particles entering the apparatus may be prevented from passing through the apparatus and detected. Different transparency state may be achieved by rotating the apparatus or the detector contained therein. With the apparatus, it is possible to detect the beam properties such as the beam intensity, angle, parallelism, and a distribution of the particles in a particle beam.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 20, 2009
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Joseph C. Olson, Atul Gupta
  • Publication number: 20090166566
    Abstract: The present invention comprises a method for high tilt angle implantation, with angular precision not previously achievable. An ion beam, having a width and height dimension, is made up of a number of individual beamlets. These beamlets typically display a higher degree of parallelism in one of these two dimensions. Thus, to minimize angular error, the workpiece is tilted about an axis substantially perpendicular to the dimension having the higher degree of parallelism. The workpiece is then implanted at a high tilt angle and rotated about a line orthogonal to the surface of the workpiece. This process can be repeated until the high tilt implantation has been performed in all required regions.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Inventors: Atul Gupta, Joseph C. Olson
  • Publication number: 20090166555
    Abstract: The present invention discloses a system and method for generating gas cluster ion beams (GCIB) having very low metallic contaminants. Gas cluster ion beam systems are plagued by high metallic contamination, thereby affecting their utility in many applications. This contamination is caused by the use of thermionic sources, which impart contaminants and are also susceptible to short lifecycles due to their elevated operating temperatures. While earlier modifications have focused on isolating the filament from the source gas cluster as much as possible, the present invention represents a significant advancement by eliminating the thermionic source completely. In the preferred embodiment, an inductively coupled plasma and ionization region replaces the thermionic source and ionizer of the prior art. Through the use of RF or microwave frequency electromagnetic waves, plasma can be created in the absence of a filament, thereby eliminating a major contributor of metallic contaminants.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Inventors: Joseph C. Olson, Jay T. Scheuer
  • Patent number: 7547900
    Abstract: Techniques for providing a ribbon-shaped gas cluster ion beam are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for providing a ribbon-shaped gas cluster ion beam. The apparatus may comprise at least one nozzle configured to inject a source gas at a sufficient speed into a low-pressure vacuum space to form gas clusters. The apparatus may also comprise at least one ionizer that causes at least a portion of the gas clusters to be ionized. The apparatus may further comprise a beam-shaping mechanism that forms a ribbon-shaped gas cluster ion beam based on the ionized gas clusters.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: June 16, 2009
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Anthony Renau, Joseph C. Olson, Jonathan Gerald England
  • 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
  • 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
  • Publication number: 20090057573
    Abstract: Techniques for terminal insulation for an ion implanter are disclosed. In one particular exemplary embodiment, the techniques may be realized as an ion implanter comprising a terminal structure defining a terminal cavity. The ion implanter may also comprise a grounded enclosure defining a grounded cavity and the terminal structure may be at least partially disposed within the grounded cavity. The ion implanter may further comprise an intermediate terminal structure disposed proximate an exterior portion of the terminal structure and at least partially disposed within the grounded cavity.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 5, 2009
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Russell John LOW, Piotr R. Lubicki, Jeffrey D. Lischer, Steve Krause, Eric Hermanson, Joseph C. Olson, Kasegn D. Tekletsadik
  • Patent number: RE41214
    Abstract: A method for implanting ions into a workpiece, such as a semiconductor wafer, includes the steps of generating an ion beam, measuring an angle of non-parallelism of the ion beam, tilting the wafer at a first angle, performing a first implant at the first angle, tilting the wafer at a second angle, and performing a second implant at the second angle. The first and second angles are opposite in sign with respect to a reference direction and in magnitude are equal to or greater than the measured angle of non-parallelism. Preferably, the first and second implants are controlled to provide substantially equal ion doses in the workpiece.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: April 13, 2010
    Assignee: Varian Semmiconductor Equipment Associates, Inc.
    Inventors: Anthony Renau, Joseph C. Olson