Patents by Inventor Klaus Petry
Klaus Petry 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: 7828504Abstract: A combination load lock apparatus is provided, wherein a chamber is coupled to two or more valves in selective fluid communication with two or more respective volumes. A support member for supporting a workpiece is disposed within an interior portion of the chamber, wherein a translation apparatus is operably coupled thereto. The translation apparatus is operable to rotate and/or translate the workpiece on the support member about and/or along a first axis, wherein a detection apparatus associated with the chamber is operable to detect one or more characteristics of the workpiece during the rotation and/or translation thereof. The workpiece may be further rotated in a predetermined manner based on the one or more detected characteristics. A recess is further defined in the interior portion of the chamber, wherein the translation apparatus is operable to translate the workpiece into and out of the recess to reduce particulate contamination thereon.Type: GrantFiled: May 12, 2006Date of Patent: November 9, 2010Assignee: Axcellis Technologies, Inc.Inventors: Michel Pharand, Klaus Becker, Klaus Petry, Marvin R. LaFontaine, Michael R. Mitrano
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Publication number: 20100265631Abstract: An electrostatic clamp, which more effectively removes built up charge from a substrate prior to and during removal, is disclosed. Currently, the lift pins and ground pins are the only mechanisms used to remove charge from the substrate after implantation. The present discloses describes a clamp having one of more additional low resistance paths to ground. These additional conduits allow built up charge to be dissipated prior to and during the removal of the substrate from the clamp. By providing sufficient charge drainage from the backside surface of the substrate 114, the problem whereby the substrate sticks to the clamp can be reduced. This results in a corresponding reduction in substrate breakage.Type: ApplicationFiled: April 14, 2010Publication date: October 21, 2010Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Dale K. Stone, Lyudmila Stone, David E. Suuronen, Klaus Petry, Julian G. Blake
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Patent number: 7381969Abstract: A control for pressurizing a load lock. The control initiates pressurization of the loadlock interior by coupling a source of gas to the loadlock interior. A representative load lock includes a pressure sensor and multiple valves to atmosphere where at least one such valves is a passthrough valve for removal of and insertion of workpieces from and into a load lock interior. A second fast acting valve also opens to atmosphere. A pressure rise inside the loadlock interior is monitored and when the pressure reaches a threshold pressure above atmosphere the fast acting valve is opened to atmosphere. This second fast acting valve is configured to relieve overpressure from the passthrough valve prior to opening of said passthrough valve. Workpiece movement is accomplished with the aid of a robot which reaches into the loadlock interior as it is either depositing workpieces or retrieving them.Type: GrantFiled: April 24, 2006Date of Patent: June 3, 2008Assignee: Axcelis Technologies, Inc.Inventors: Tariq Fasheh, James Carroll, Klaus Petry, Dale Stone, Lyudmila Stone, Dave Wiederspahn
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Publication number: 20070264105Abstract: A combination load lock apparatus is provided, wherein a chamber is coupled to two or more valves in selective fluid communication with two or more respective volumes. A support member for supporting a workpiece is disposed within an interior portion of the chamber, wherein a translation apparatus is operably coupled thereto. The translation apparatus is operable to rotate and/or translate the workpiece on the support member about and/or along a first axis, wherein a detection apparatus associated with the chamber is operable to detect one or more characteristics of the workpiece during the rotation and/or translation thereof. The workpiece may be further rotated in a predetermined manner based on the one or more detected characteristics. A recess is further defined in the interior portion of the chamber, wherein the translation apparatus is operable to translate the workpiece into and out of the recess to reduce particulate contamination thereon.Type: ApplicationFiled: May 12, 2006Publication date: November 15, 2007Inventors: Michel Pharand, Klaus Becker, Klaus Petry, Marvin LaFontaine, Michael Mitrano
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Publication number: 20070246658Abstract: A control for pressurizing a load lock. The control initiates pressurization of the loadlock interior by coupling a source of gas to the loadlock interior. A representative load lock includes a pressure sensor and multiple valves to atmosphere where at least one such valves is a passthrough valve for removal of and insertion of workpieces from and into a load lock interior. A second fast acting valve also opens to atmosphere. A pressure rise inside the loadlock interior is monitored and when the pressure reaches a threshold pressure above atmosphere the fast acting valve is opened to atmosphere. This second fast acting valve is configured to relieve overpressure from the passthrough valve prior to opening of said passthrough valve. Workpiece movement is accomplished with the aid of a robot which reaches into the loadlock interior as it is either depositing workpieces or retrieving them.Type: ApplicationFiled: April 24, 2006Publication date: October 25, 2007Inventors: Tariq Fasheh, James Carroll, Klaus Petry, Dale Stone, Lyudmila Stone, Dave Wiederspahn
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Patent number: 7105840Abstract: An ion implanter having a source, a workpiece support and a transport system for delivering ions from the source to an ion implantation chamber that contains the workpiece support. The ion source has an arc chamber for ionizing a source material routed into the arc chamber that defines an exit aperture for routing ions to the transport system and including an arc chamber flange attached to the arc chamber and including a first surface that defines a gas inlet which accepts gas from a source and a gas outlet which opens into the arc chamber. An arc chamber support includes a support flange having a conforming surface that sealingly engages the first surface of arc chamber flange at a region of the gas inlet and further includes a throughpassage that aligns with the gas inlet. A gas supply line routes gas from a gas source through the throughpassage of the support flange and into the gas inlet of said arc chamber flange.Type: GrantFiled: February 3, 2005Date of Patent: September 12, 2006Assignee: Axcelis Technologies, Inc.Inventors: Klaus Becker, Werner Baer, Klaus Petry
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Publication number: 20060169921Abstract: An ion implanter having a source, a workpiece support and a transport system for delivering ions from the source to an ion implantation chamber that contains the workpiece support. The ion source has an arc chamber for ionizing a source material routed into the arc chamber that defines an exit aperture for routing ions to the transport system and including an arc chamber flange attached to the arc chamber and including a first surface that defines a gas inlet which accepts gas from a source and a gas outlet which opens into the arc chamber. An arc chamber support includes a support flange having a conforming surface that sealingly engages the first surface of arc chamber flange at a region of the gas inlet and further includes a throughpassage that aligns with the gas inlet. A gas supply line routes gas from a gas source through the throughpassage of the support flange and into the gas inlet of said arc chamber flange.Type: ApplicationFiled: February 3, 2005Publication date: August 3, 2006Inventors: Klaus Becker, Werner Baer, Klaus Petry
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Publication number: 20060033045Abstract: Dosimetry systems and methods are also presented for measuring a scanned ion beam at a plurality of points along a curvilinear path at a workpiece location in a process chamber. An illustrated dosimetry system comprises a sensor and a mounting apparatus that supports support the sensor and selectively positions the sensor at a plurality of points along the curvilinear path, wherein the mounting apparatus can selectively position the sensor to point toward a vertex of the scanned ion beam.Type: ApplicationFiled: August 13, 2004Publication date: February 16, 2006Inventors: Klaus Petry, Joseph Ferrara, Klaus Becker
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Patent number: 6992309Abstract: Dosimetry systems and methods are also presented for measuring a scanned ion beam at a plurality of points along a curvilinear path at a workpiece location in a process chamber. An illustrated dosimetry system comprises a sensor and a mounting apparatus that supports support the sensor and selectively positions the sensor at a plurality of points along the curvilinear path, wherein the mounting apparatus can selectively position the sensor to point toward a vertex of the scanned ion beam.Type: GrantFiled: August 13, 2004Date of Patent: January 31, 2006Assignee: Axcelis Technologies, Inc.Inventors: Klaus Petry, Joseph Ferrara, Klaus Becker
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Patent number: 6552892Abstract: The present invention relates to an electrostatic clamp and comprises a dielectric layer overlying an electrode and a doped region in the dielectric layer. The doped region of the dielectric layer is electrically conductive, and when the doped region is coupled to a circuit ground potential, the doped region of the dielectric layer is operable to bleed off charge which accumulates on a workpiece residing thereon during processing. The present invention further comprises a method of forming an electrostatic clamp which comprises the steps of forming an electrically insulating layer over an electrode and doping a portion of the electrically insulating layer, wherein the doped portion of the electrically insulating layer becomes electrically conductive.Type: GrantFiled: May 9, 2001Date of Patent: April 22, 2003Assignee: Axcelis Technologies, Inc.Inventors: James C. Carroll, Dennis M. Klesel, Bryan C. Lagos, Klaus Petry
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Publication number: 20020167779Abstract: The present invention relates to an electrostatic clamp and comprises a dielectric layer overlying an electrode and a doped region in the dielectric layer. The doped region of the dielectric layer is electrically conductive, and when the doped region is coupled to a circuit ground potential, the doped region of the dielectric layer is operable to bleed off charge which accumulates on a workpiece residing thereon during processing. The present invention further comprises a method of forming an electrostatic clamp which comprises the steps of forming an electrically insulating layer over an electrode and doping a portion of the electrically insulating layer, wherein the doped portion of the electrically insulating layer becomes electrically conductive.Type: ApplicationFiled: May 9, 2001Publication date: November 14, 2002Inventors: James C. Carroll, Dennis M. Klesel, Bryan C. Lagos, Klaus Petry
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Patent number: 5695396Abstract: An air supply system for an aircraft cabin reduces the concentration of contaminations of the air in the cabin by a flexibly controllable valve system that comprises pairs of valves which on the one hand are ganged to respective air openings. One valve of a pair is connected to a fresh air or mixed air supply line. The other valve of a pair is connected to a suction or exhaust duct. Thus, depending on which valve in a pair is open and which is closed, the respective air opening can function as an air outlet for supply of mixed or fresh air into the cabin or as a suction port. Such a system permits a flexible volume control of the supply of fresh air into selectable cabin sections as well as a flexible volume control for the removal of used air from respective cabin sections. Additionally, it is now possible to increase the size of the non-smoking section at the expense of the smoking section or vice versa simply by a respective valve control.Type: GrantFiled: March 15, 1996Date of Patent: December 9, 1997Assignee: Daimler-Benz Aerospace Airbus GmbHInventors: Michael Markwart, Klaus Petry, Thomas Scherer
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Patent number: 5545084Abstract: A method and apparatus is provided for air conditioning two passenger decks in an aircraft, especially a high capacity aircraft. The engine tap air stream is provided for air conditioning the upper deck passenger cabin and the lower deck passenger cabin. The air stream is cooled in at least one air conditioning plant, mixed with recirculated air from the lower cabin in at least one premix chamber, and then mixed with recirculated air from the upper cabin in local mixing chambers. The finished air streams are directed to the upper deck and the lower deck passenger cabins. The upper deck exhaust air is essentially completely used as recirculation air being mixed with the conditioning air in the local mixing chambers. The lower deck exhaust air is partially used as recirculation air being mixed with the conditioning air in the premix chambers, and is partially exhausted overboard.Type: GrantFiled: July 20, 1995Date of Patent: August 13, 1996Assignee: Daimier-Benz Aerospace Airbus GmbHInventors: Heinz Fischer, Thomas Scherer, Michael Markwart, Klaus Petry