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: 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: 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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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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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: 7462844Abstract: The invention provides a method, system, and apparatus for improving doping uniformity during ion implantation, particularly during a high-tilt ion implantation. In one embodiment, the invention provides a method for improving doping uniformity in a high-tilt ion implantation, the method comprising the steps of: positioning a wafer along an axis perpendicular to an ion beam scan plane to form an angle between a surface of the wafer and a plane perpendicular to the ion beam; measuring a current of the ion beam by moving a current detector across the ion beam in a path substantially coplanar with a surface of the wafer; and adjusting a doping uniformity of the ion beam current based on the measuring step.Type: GrantFiled: September 30, 2005Date of Patent: December 9, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Shengwu Chang, Isao Tsunoda, Nobihiro Tokoro, Dennis Rodier, Joseph C. Olson, Donna Smatlak, Damian Brennan, William Bintz
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Patent number: 7459704Abstract: 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: GrantFiled: November 8, 2005Date of Patent: December 2, 2008Assignee: 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
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Patent number: 7459692Abstract: A method and apparatus are disclosed for improving space charge neutralization adjacent a magnet of an ion implanter by confining the electrons inside a magnetic region thereof to reduce electron losses and therefore improve the transport efficiency of a low energy beam. A magnetic pole member for a magnet of an ion implanter is provided that includes an outer surface having a plurality of magnetic field concentration members that form magnetic field concentrations adjacent the magnetic pole member. Electrons that encounter this increased magnetic field are repelled back along the same magnetic field line rather than allowed to escape. An analyzer magnet and ion implanter including the magnet pole are also provided so that a method of improving low energy ion beam space charge neutralization in an ion implanter is realized.Type: GrantFiled: November 10, 2005Date of Patent: December 2, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Anthony Renau, Joseph C. Olson, Shengwu Chang, James Buff
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Patent number: 7453070Abstract: A beam density measurement system includes a shield, a beam sensor, and an actuator. The beam sensor is positioned downstream from the shield in a direction of travel of a beam. The beam sensor is configured to sense an intensity of the beam, and the beam sensor has a long dimension and a short dimension. The actuator translates the shield relative to the beam sensor, wherein the shield blocks at least a portion of the beam from the beam sensor as the shield is translated relative to the beam sensor, and wherein measured values of the intensity associated with changes in a position of the shield relative to the beam sensor are representative of a beam density distribution of the beam in a first direction defined by the long dimension of the beam sensor.Type: GrantFiled: June 29, 2006Date of Patent: November 18, 2008Assignee: Varian Semiconductor Associates, Inc.Inventors: Atul Gupta, Joseph C. Olson, Gregg A. Norris
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Patent number: 7442944Abstract: An ion beam tuning method, system and program product for tuning an ion implanter system are disclosed. The invention obtains an ion beam profile of the ion beam by, for example, scanning the ion beam across a profiler that is within an implant chamber; and tunes the ion implanter system to maximize an estimated implant current based on the ion beam profile to simultaneously optimize total ion beam current and ion beam spot width, and maximize implant current. In addition, the tuning can also position the ion beam along a desired ion beam path based on the feedback of the spot beam center, which improves ion implanter system productivity and performance by reducing ion beam setup time and provides repeatable beam angle performance for each ion beam over many setups.Type: GrantFiled: October 7, 2004Date of Patent: October 28, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Shengwu Chang, Antonella Cucchetti, Joseph P. Dzengeleski, Gregory R. Gibilaro, Rosario Mollica, Gregg A. Norris, Joseph C. Olson, Marie J. Welsch
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Patent number: 7402820Abstract: A system, method and program product for determining contamination of an ion beam are disclosed. In the event of an isobaric interference, or near isobaric interference between a contaminant ion and an expected ion of an ion beam, which is difficult to detect, it is possible to measure a third ion in the ion beam and estimate, based on the amount of the third ion measured, a relative amount of the contaminant ion compared to the expected ion. The estimated relative amount of the contaminant ion is used together with a measured mass resolution of the ion implantation system to determine whether an ion implantation process needs to be suspended.Type: GrantFiled: November 30, 2005Date of Patent: July 22, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Russell Low, Joseph C. Olson, Antonella Cucchetti, Anthony Renau, Marie Welsch
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Publication number: 20080169427Abstract: 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: ApplicationFiled: July 11, 2007Publication date: July 17, 2008Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Christopher R. HATEM, Craig R. Chaney, Eric R. Cobb, Joseph C. Olson, Chris Campbell
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Patent number: 7397047Abstract: A technique for tuning an ion implanter system is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for tuning an ion implanter system having multiple beam-line elements. The method may comprise establishing one or more relationships among the multiple beam-line elements. The method may also comprise adjusting the multiple beam-line elements in a coordinated manner, based at least in part on the one or more established relationships, to produce a desired beam output.Type: GrantFiled: May 6, 2005Date of Patent: July 8, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Shengwu Chang, Joseph C. Olson, Damian Brennan
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Patent number: 7394078Abstract: A technique for ion beam angle spread control for advance applications is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for ion beam angle spread control for advanced applications. The method may comprise directing one or more ion beams at a substrate surface at two or more different incident angles. The method may also comprise varying an ion beam dose associated with at least one of the one or more ion beams based at least in part on the two or more incident angles, thereby exposing the substrate surface to a controlled ion beam angle-dose distribution.Type: GrantFiled: June 7, 2005Date of Patent: July 1, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Atul Gupta, Joseph C. Olson
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Publication number: 20080149826Abstract: 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: ApplicationFiled: December 22, 2006Publication date: June 26, 2008Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Anthony RENAU, Joseph C. Olson, Jonathan Gerald England
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Patent number: 7391038Abstract: A technique for isocentric ion beam scanning is disclosed. In one particular exemplary embodiment, the technique may be realized by an apparatus for isocentric ion beam scanning. The apparatus may comprise an end station having a mechanism for holding and translating a wafer. The apparatus may also comprise a deflector that tilts an ion beam to a predetermined angle and directs the ion beam into the end station. The wafer may be translated with respect to the ion beam for isocentric scanning at least a portion of a surface of the wafer, and wherein the ion beam is maintained at the predetermined angle during isocentric scanning.Type: GrantFiled: March 21, 2006Date of Patent: June 24, 2008Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Joseph C. Olson, Anthony Renau
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Publication number: 20080105833Abstract: 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: ApplicationFiled: October 2, 2007Publication date: May 8, 2008Applicant: Varian Semiconductor Equipment Associates,Inventors: Jonathan Gerald England, Christopher R. Hatem, Jay Thomas Scheuer, Joseph C. Olson