Patents Assigned to Edwards Vacuum, Inc.
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Publication number: 20140112650Abstract: A cartridge heater apparatus includes a tube; a heating cartridge adapted to be inserted into the tube for heating fluid passing through a passage space between the heating cartridge and the tube, the heating cartridge being secured at a first end thereof in a cantilever manner; and means for supporting the heating cartridge in the tube at a location distant from the first end, without blocking the fluid passing through the passage space between the heating cartridge and the tube.Type: ApplicationFiled: October 19, 2012Publication date: April 24, 2014Applicant: EDWARDS VACUUM, INC.Inventors: Budd E. Faulkner, Mark Kollin Romeo
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Patent number: 8636019Abstract: The present invention relates to vacuum processing systems in which process gases are introduced in a process chamber and are exhausted through a vacuum processing system exhaust path. Deposits made by the exhausted gases in one or more dry vacuum pumps are removed by introducing hydrofluoric acid upstream of the dry pump while the processing chamber is idle. The hydrofluoric acid is introduced upstream of the dry pump through a nozzle in the foreline or at the inlet to the dry pump.Type: GrantFiled: April 22, 2008Date of Patent: January 28, 2014Assignee: Edwards Vacuum, Inc.Inventor: Anthony Park Taylor
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Patent number: 7625540Abstract: A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of hydrofluoric acid with an ion exchange resin having an active state operative to exchange selected ions therein for fluoride ions in the solution. The apparatus (200) may include a dual resin setup (222, 223) such that one of the ion-exchange resin can be in the service cycle while the other of the ion-exchange resins undergoes the regeneration and rinse/refill cycles.Type: GrantFiled: December 1, 2000Date of Patent: December 1, 2009Assignee: Edwards Vacuum, Inc.Inventor: Juzer Jangbarwala
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Patent number: 7541061Abstract: A vacuum chamber used for processing articles, such as integrated circuit wafers, display panels, and the like, has a small load lock chamber formed at an opening in a wall of the chamber by a moveable article supporting surface within the chamber and a cover outside of the chamber. The supporting surface and cover are sealed to the chamber wall when urged against it. Articles placed into the load lock chamber, when the cover is opened, are moved into the vacuum chamber for processing by moving the supporting surface away from the wall after the cover has been closed and a vacuum established in the load lock chamber. Articles are removed from the vacuum chamber in a reverse manner. Various mechanisms are describe for moving the articles, including a particular robotic device that simultaneously swaps the positions of two articles between the supporting surface and a processing location within the vacuum chamber by first pulling the articles together and then rotating them in a half-circle.Type: GrantFiled: July 17, 2003Date of Patent: June 2, 2009Assignee: Edwards Vacuum, Inc.Inventor: Bruce Gordon Ramsay
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Patent number: 7539459Abstract: Noise of a noise-producing object may be at least partially cancelled by a system that emits sound at a polarity substantially opposite to a polarity of detected noise and includes a member having elements disposed in the vicinity of a noise-producing object, some of the elements may be configured to emit noise, and some of the elements may be configured to detect noise and where a signal indicative of the detected noise may be received by a controller which sends a signal to cause at least some of the elements to emit sound at a polarity substantially opposite that of the detected noise, and includes an analyzer to determine when detected noise is indicative of one or more conditions of the noise producing object.Type: GrantFiled: April 2, 2004Date of Patent: May 26, 2009Assignee: Edwards Vacuum, Inc.Inventor: Clive Reginald Steer
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Patent number: 7500822Abstract: A load-lock and dry vacuum pump assembly includes a load-lock having a load-lock housing, the load-lock housing includes a mating system having a flange-like cylinder and a cylinder concentrically located relative to said flange-like cylinder; a dry vacuum pump that includes a shaft, a rotor, a first concentric cylinder and a second concentric cylinder extending outwardly from the rotor, and is integrally connected with the mating system, the first and second dry vacuum pump concentric cylinders, the flange-like cylinder, and the cylinder concentrically located relative to said flange being axially arranged with respect to the shaft; and a molecular drag compression stage formed by flanges having helical structures selectively provided on the first and second concentric cylinders, the flange-like cylinder, and the cylinder concentrically located relative to the flange.Type: GrantFiled: April 9, 2004Date of Patent: March 10, 2009Assignee: Edwards Vacuum, Inc.Inventors: Graeme Huntley, Neil Geoffrey Bellenie
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Patent number: 7470413Abstract: A method for removing fluorine gas from a selected environment comprises contacting the fluorine gas with water to generate a solution of hydrofluoric acid and contacting the solution of hydrofluoric acid with an ion exchange resin having an active state operative to exchange selected ions therein for fluoride ions in the solution. The apparatus (200) may include a dual resin setup (222, 223) such that one of the ion-exchange resin can be in the service cycle while the other of the ion-exchange resins undergoes the regeneration and rinse/refill cycles.Type: GrantFiled: January 16, 2004Date of Patent: December 30, 2008Assignee: Edwards Vacuum, Inc.Inventor: Juzer Jangbarwala
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Patent number: 7438534Abstract: The present invention is an apparatus and method for controlling a process flow rate and a pressure in a vacuum process chamber that is evacuated by a turbomolecular pump. A throttle valve between the pump and the process chamber is controlled to regulate the pressure and flow rate. A backing valve downstream of the pump is also controlled to maintain the setting of the throttle valve within a preferred, stable operating range.Type: GrantFiled: October 7, 2005Date of Patent: October 21, 2008Assignee: Edwards Vacuum, Inc.Inventors: Peter John Holland, Kate Wilson, Dawn Stephenson
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Patent number: 7404698Abstract: The present invention relates to turbomolecular vacuum pumps and an arrangement for reducing or eliminating an accumulated static charge in the rotor caused by an interaction of the rotor with either electrically charged or neutral particles in the pumped media. Electrical charge exchange between the rotor and the electrically grounded stator is effected through a wire or other means of electrical contact, or through charge emission devices such as a field emission tip. In either case, electrostatic charges in the rotor are reduced or eliminated.Type: GrantFiled: August 16, 2005Date of Patent: July 29, 2008Assignee: Edwards Vacuum, Inc.Inventor: Frank Jansen
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Patent number: 7398127Abstract: The present invention provides systems and methods for facilitating communications between various components of distributed system. Specifically, the systems and methods of the present invention provide a wireless network for linking the various components of manufacturing equipment or manufacturing systems to one or more central control devices. Each component of the manufacturing equipment and the central control devices include a wireless module for handling communications between the components and the control devices. In some embodiments, one or more of the components may act as a server for other components in the network. In some embodiments, multiple data channels are used for communication between the components and the central control devices.Type: GrantFiled: January 4, 2005Date of Patent: July 8, 2008Assignee: Edwards Vacuum, Inc.Inventors: Michael Boger, Thomas Russell, Larry Marini