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).
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Patent number: 7820985Abstract: 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: GrantFiled: December 28, 2007Date of Patent: October 26, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Atul Gupta, Joseph C. Olson
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Patent number: 7820986Abstract: 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: GrantFiled: September 13, 2007Date of Patent: October 26, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Piotr R. Lubicki, Russell J. Low, Joseph C. Olson, Anthony Renau
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Patent number: 7812325Abstract: 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: GrantFiled: September 28, 2006Date of Patent: October 12, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: James Buonodono, Paul Murphy, Joseph C. Olson, Anthony Renau
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Publication number: 20100116983Abstract: 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: ApplicationFiled: November 11, 2009Publication date: May 13, 2010Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Victor Benveniste, James S. Buff, Frank Sinclair, Joseph C. Olson
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Publication number: 20100098851Abstract: 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: ApplicationFiled: October 20, 2008Publication date: April 22, 2010Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Shigemi MURAKAWA, Vikram Singh, George Papasouliotis, Joseph C. Olson, Paul J. Murphy, Gary E. Dickerson
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Publication number: 20100090131Abstract: 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: ApplicationFiled: December 17, 2009Publication date: April 15, 2010Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Atul GUPTA, Joseph C. Olson
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Patent number: 7683347Abstract: 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: GrantFiled: September 29, 2006Date of Patent: March 23, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Atul Gupta, Anthony Renau, Donna Smatlak, Joseph C. Olson
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Patent number: 7663125Abstract: 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: GrantFiled: March 29, 2007Date of Patent: February 16, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: William G. Callahan, Morgan D. Evans, George M. Gammel, Norman E. Hussey, Gregg A. Norris, Joseph C. Olson
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Patent number: 7655932Abstract: 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: GrantFiled: July 11, 2007Date of Patent: February 2, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Christopher R. Hatem, Craig R. Chaney, Eric R. Cobb, Joseph C. Olson, Chris Campbell
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Publication number: 20100019141Abstract: 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: ApplicationFiled: July 22, 2009Publication date: January 28, 2010Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Joseph C. Olson, Robert L. Badzey
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Patent number: 7642529Abstract: 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: GrantFiled: September 29, 2006Date of Patent: January 5, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Atul Gupta, Joseph C. Olson
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Patent number: 7622722Abstract: 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: GrantFiled: October 2, 2007Date of Patent: November 24, 2009Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Jonathan Gerald England, Christopher R. Hatem, Jay Thomas Scheuer, Joseph C. Olson
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Publication number: 20090206273Abstract: 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: ApplicationFiled: February 14, 2008Publication date: August 20, 2009Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Joseph C. Olson, Atul Gupta
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Publication number: 20090166566Abstract: 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: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Inventors: Atul Gupta, Joseph C. Olson
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Publication number: 20090166555Abstract: 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: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Inventors: Joseph C. Olson, Jay T. Scheuer
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Patent number: 7547900Abstract: 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: GrantFiled: December 22, 2006Date of Patent: June 16, 2009Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Anthony Renau, Joseph C. Olson, Jonathan Gerald England
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Publication number: 20090078554Abstract: 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: ApplicationFiled: September 26, 2007Publication date: March 26, 2009Applicant: 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
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Publication number: 20090072163Abstract: 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: ApplicationFiled: September 13, 2007Publication date: March 19, 2009Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Piotr R. Lubicki, Russell J. Low, Joseph C. Olson, Anthony Renau
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Publication number: 20090057573Abstract: 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: ApplicationFiled: August 29, 2007Publication date: March 5, 2009Applicant: 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
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Patent number: RE41214Abstract: 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: GrantFiled: February 8, 2005Date of Patent: April 13, 2010Assignee: Varian Semmiconductor Equipment Associates, Inc.Inventors: Anthony Renau, Joseph C. Olson