Patents by Inventor Victor M. Benveniste
Victor M. Benveniste 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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Publication number: 20100148088Abstract: Techniques for providing a multimode ion source are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for ion implantation, the apparatus including an ion source having a hot cathode and a high frequency plasma generator, wherein the ion source has multiple modes of operation.Type: ApplicationFiled: February 18, 2010Publication date: June 17, 2010Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Svetlana Radovanov, Bon-Woong Koo, Frank Sinclair, Victor M. Benveniste
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Patent number: 7723705Abstract: Techniques for measuring ion beam emittance are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for measuring ion beam emittance. The apparatus may comprise a measurement assembly comprising a first mask, a second mask, and a pivot axis, such that the measurement assembly rotates about the pivot axis in order to scan an ion beam using either the first mask or the second mask to measure ion beam emittance for providing a measure of ion beam uniformity.Type: GrantFiled: June 18, 2008Date of Patent: May 25, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventor: Victor M. Benveniste
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Patent number: 7723707Abstract: Techniques for plasma injection for space charge neutralization of an ion beam are disclosed. In one particular exemplary embodiment, the techniques may be realized as a plasma injection system for space charge neutralization of an ion beam. The plasma injection system may comprise a first array of magnets and a second array of magnets positioned along at least a portion of an ion beam path, the first array being on a first side of the ion beam path and the second array being on a second side of the ion beam path, the first side opposing the second side. At least two adjacent magnets in the first array of magnets may have opposite polarity. The plasma injection system may also comprise a plasma source configured to generate a plasma in a region associated with a portion of the ion beam path by colliding at least some electrons with a gas.Type: GrantFiled: July 23, 2007Date of Patent: May 25, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Victor M. Benveniste, Gordon Angel, Bon-Woong Koo, Kourosh Saadatmand
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Patent number: 7700925Abstract: Techniques for providing a multimode ion source are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for ion implantation, the apparatus including an ion source having a hot cathode and a high frequency plasma generator, wherein the ion source has multiple modes of operation.Type: GrantFiled: December 28, 2007Date of Patent: April 20, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Svetlana Radovanov, Bon Woong Koo, Frank Sinclair, Victor M. Benveniste
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Publication number: 20100084581Abstract: An apparatus and method for ion implantation that include destabilizing the ion beam as it passes through magnetic field, preferably a dipole magnetic field is disclosed. By introducing a bias voltage at certain points within the magnetic field, electrons from the plasma are drawn toward the magnet, thereby causing the ion beam to expand due to space charge effects. The bias voltage can be introduced into the magnet in a region where the magnetic field has only one component. Alternatively, the bias voltage can be in a region wherein the magnetic field has two components.Type: ApplicationFiled: October 2, 2008Publication date: April 8, 2010Inventors: Victor M. Benveniste, Antonella Cucchetti, Bon-Woong Koo
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Patent number: 7675047Abstract: A technique for shaping a ribbon-shaped ion beam is disclosed. In one particular exemplary embodiment, the technique may be realized as an apparatus for shaping a ribbon-shaped ion beam. The apparatus may comprise an electrostatic lens having a substantially rectangular aperture for a ribbon-shaped ion beam to pass through, wherein a plurality of focusing elements are positioned along short edges of the aperture, and wherein each focusing element is separately biased and oriented to shape the ribbon-shaped ion beam.Type: GrantFiled: September 29, 2006Date of Patent: March 9, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Svetlana B. Radovanov, Peter L. Kellerman, Victor M. Benveniste, Robert C. Lindberg, Kenneth H. Purser, Tyler B. Rockwell, James S. Buff, Anthony Renau
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Publication number: 20090314932Abstract: Techniques for measuring ion beam emittance are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for measuring ion beam emittance. The apparatus may comprise a measurement assembly comprising a first mask, a second mask, and a pivot axis, such that the measurement assembly rotates about the pivot axis in order to scan an ion beam using either the first mask or the second mask to measure ion beam emittance for providing a measure of ion beam uniformity.Type: ApplicationFiled: June 18, 2008Publication date: December 24, 2009Applicant: Varian Semiconductor Equipment Associates, Inc.Inventor: Victor M. Benveniste
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Patent number: 7598495Abstract: A focusing particle trap system for ion implantation comprising an ion beam source that generates an ion beam, a beam line assembly that receives the ion beam from the ion beam source comprising a mass analyzer that selectively passes selected ions, a focusing electrostatic particle trap that receives the ion beam and removes particles from the ion beam comprising an entrance electrode comprising an entrance aperture and biased to a first base voltage, wherein the first surface of the entrance electrode is facing away from a center electrode and is approximately flat, wherein the second surface of the entrance electrode is facing toward the center electrode and is concave, wherein the center electrode is positioned a distance downstream from the entrance electrode comprising a center aperture and biased to a center voltage, wherein the center voltage is less than the first base voltage, wherein the first surface of the center electrode is facing toward the entrance electrode and is convex, wherein the secondType: GrantFiled: April 25, 2007Date of Patent: October 6, 2009Assignee: Axcelis Technologies, Inc.Inventors: Peter L. Kellerman, Victor M. Benveniste, Alexander S. Perel, Brian S. Freer, Michael A. Graf
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Patent number: 7598505Abstract: The present invention discloses systems and methods for generating low energy, high current ion beams by scaling beamline dimensions and employing multiple beamlines. An array of beamlets is generated by an ion source. The beamlets then pass through a mass analysis module that permits selected ions to pass while blocking other ions and/or particles. The selected ions can then be accelerated to a desired energy level. Subsequently, the beamlets are diverged in horizontal and vertical directions to form a single low energy, high current ion beam.Type: GrantFiled: March 8, 2005Date of Patent: October 6, 2009Assignee: Axcelis Technologies, Inc.Inventor: Victor M. Benveniste
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Patent number: 7579602Abstract: This disclosure describes an ion implanter having a collimator magnet that is configured to shape an ion beam. A first deceleration stage is configured to manipulate energy of the ion beam shaped by the collimator magnet. A neutral filter magnet is configured to filter neutral atoms from the ion beam passing through the first deceleration stage.Type: GrantFiled: December 22, 2006Date of Patent: August 25, 2009Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Victor M. Benveniste, Christopher W. Campbell, Frank Sinclair
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Publication number: 20090166554Abstract: Techniques for providing a multimode ion source are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for ion implantation, the apparatus including an ion source having a hot cathode and a high frequency plasma generator, wherein the ion source has multiple modes of operation.Type: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Svetlana Radovanov, Bon Woong Koo, Frank Sinclair, Victor M. Benveniste
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Patent number: 7550751Abstract: One embodiment of the invention relates to a method for adjusting the ribbon beam flux of a scanned ion beam. In this method, an ion beam is scanned at a scan rate, and a plurality of dynamic beam profiles are measured as the ion beam is scanned. A corrected scan rate is calculated based on the plurality of measured dynamic beam profiles of the scanned beam. The ion beam is scanned at the corrected scan rate to produce a corrected ribbon ion beam. Other methods and systems are also disclosed.Type: GrantFiled: April 9, 2007Date of Patent: June 23, 2009Assignee: Axcelis Technologies, Inc.Inventors: Victor M. Benveniste, Edward C. Eisner, Bo H. Vanderberg
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Publication number: 20090121122Abstract: Techniques for measuring and controlling ion beam angle and density uniformity are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for measuring and controlling ion beam angle and density uniformity. The apparatus may include a measuring assembly having an opening, a cup, and at least one collector at the rear of the cup. The apparatus may further include an actuator to move the measuring assembly along an actuation path to scan an ion beam to measure and control ion beam uniformity.Type: ApplicationFiled: November 13, 2007Publication date: May 14, 2009Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Peter L. Kellerman, Kenneth Purser, Svetlana Radovanov, Victor M. Benveniste, Frank Sinclair, John Slocum
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Publication number: 20090121149Abstract: Techniques for shaping an ion beam are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for shaping an ion beam. The apparatus may comprise an entrance electrode biased at a first voltage potential, wherein an ion beam enters the entrance electrode, an exit electrode biased at a second voltage potential, wherein the ion beam exits the exit electrode, and a first suppression electrode and a second suppression electrode positioned between the entrance electrode and the exit electrode, wherein the first suppression electrode and the second suppression electrode are independently biased to variably focus the ion beam.Type: ApplicationFiled: November 9, 2007Publication date: May 14, 2009Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Svetlana Radovanov, Frank Sinclair, Peter L. Kellerman, Victor M. Benveniste, Robert Lindberg
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Publication number: 20090026390Abstract: Techniques for plasma injection for space charge neutralization of an ion beam are disclosed. In one particular exemplary embodiment, the techniques may be realized as a plasma injection system for space charge neutralization of an ion beam. The plasma injection system may comprise a first array of magnets and a second array of magnets positioned along at least a portion of an ion beam path, the first array being on a first side of the ion beam path and the second array being on a second side of the ion beam path, the first side opposing the second side. At least two adjacent magnets in the first array of magnets may have opposite polarity. The plasma injection system may also comprise a plasma source configured to generate a plasma in a region associated with a portion of the ion beam path by colliding at least some electrons with a gas.Type: ApplicationFiled: July 23, 2007Publication date: January 29, 2009Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Victor M. Benveniste, Gordon Angel, Bon-Woong Koo, Kourosh Saadatmand
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Patent number: 7421973Abstract: An ion shower comprises a plasma source operable to generate source gas ions within a chamber, and an extraction assembly associated with a top portion of the chamber. The extraction assembly is operable to extract ions from the top portion of the chamber. The ion shower further comprises a workpiece support structure associated with the top portion of the chamber that is operable to secure the workpiece having an implantation surface orientated facing downward toward the extraction assembly for implantation thereof. The ion shower of the present invention advantageously facilitates SIMOX processing with a high oxygen fraction, and uniform beam current for next generation processing.Type: GrantFiled: January 21, 2004Date of Patent: September 9, 2008Assignee: Axcelis Technologies, Inc.Inventors: Peter L. Kellerman, Victor M. Benveniste, William F. DiVergili, Michael P. Bradley
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Publication number: 20080149845Abstract: This disclosure describes an ion implanter having a collimator magnet that is configured to shape an ion beam. A first deceleration stage is configured to manipulate energy of the ion beam shaped by the collimator magnet. A neutral filter magnet is configured to filter neutral atoms from the ion beam passing through the first deceleration stage.Type: ApplicationFiled: December 22, 2006Publication date: June 26, 2008Inventors: Victor M. Benveniste, Christopher W. Campbell, Frank Sinclair
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Patent number: 7375355Abstract: An ion implantation cluster tool for implanting ions into a workpiece is provided, wherein a plurality of beamline assemblies having a respective plurality of ion beamlines associated therewith are positioned about a common process chamber. Each of the plurality of ion beamline assemblies are selectively isolated from the common process chamber, and the plurality of beamline intersect at a processing region of the process chamber. A scanning apparatus positioned within the common process chamber is operable to selectively translate a workpiece holder in one or more directions through each of the plurality of ion beamlines within the processing region, and a common dosimetry apparatus within the common process chamber is operable to measure one or more properties of each of the plurality of ion beamlines. A load lock chamber is operably coupled to the common process chamber for exchange of workpieces between the common process chamber and an external environment.Type: GrantFiled: May 12, 2006Date of Patent: May 20, 2008Assignee: Axcelis Technologies, Inc.Inventors: Joseph Ferrara, Patrick R. Splinter, Michael A. Graf, Victor M. Benveniste
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Publication number: 20080067444Abstract: One embodiment of the invention relates to a method for adjusting the ribbon beam flux of a scanned ion beam. In this method, an ion beam is scanned at a scan rate, and a plurality of dynamic beam profiles are measured as the ion beam is scanned. A corrected scan rate is calculated based on the plurality of measured dynamic beam profiles of the scanned beam. The ion beam is scanned at the corrected scan rate to produce a corrected ribbon ion beam. Other methods and systems are also disclosed.Type: ApplicationFiled: April 9, 2007Publication date: March 20, 2008Inventors: Victor M. Benveniste, Edward C. Eisner, Bo H. Vanderberg
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Patent number: 7267520Abstract: The present invention is directed to a scanning apparatus and method for processing a workpiece, wherein the scanning apparatus comprises a wafer arm and moving arm fixedly coupled to one another, wherein the wafer arm and moving arm are operable to rotate about a first axis. An end effector, whereon the workpiece resides, is coupled to the wafer arm. A rotational shaft couples the wafer arm and moving arm to a first actuator, wherein the first actuator provides a rotational force to the shaft. A momentum balance mechanism is coupled to the shaft and is operable to generally reverse the rotational direction of the shaft. The momentum balance mechanism comprises one or more fixed spring elements operable to provide a force to a moving spring element coupled to the moving arm. A controller is further operable to maintain a generally constant translational velocity of the end effector within a predetermined scanning range.Type: GrantFiled: April 5, 2005Date of Patent: September 11, 2007Assignee: Axcelis Technologies, Inc.Inventors: Peter L. Kellerman, Victor M. Benveniste, Kourosh Saadatmand, Mehran Asdigha, Douglas A. Brown