Patents by Inventor Robert Brent

Robert Brent 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).

  • Patent number: 9694989
    Abstract: One embodiment of this workpiece handling system has conveyor belts and a load lock. A first swap robot holds and transports workpieces between a build station and the load lock. A gantry robot transports the workpieces between each of the conveyor belts and the first swap robot. In one instance, processed workpieces are transported from the first swap robot to a first conveyor belt and unprocessed workpieces are transported from a second conveyor belt to the first swap robot using the gantry robot. A second swap robot also may be used with the first swap robot to load and unload workpieces from the load lock.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: July 4, 2017
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Jason M. Schaller, Robert Brent Vopat, Charles T. Carlson, Malcolm N. Daniel, Aaron P. Webb, William T. Weaver
  • Patent number: 9669552
    Abstract: A system and method are disclosed for substrate handling. The system can include a robot adapter configured to connect to a robot, and first and second end effectors connected to the robot adapter. The robot adapter is configured to move the first and second end effectors from a first, retracted, position to a second, extended, position. In the extended position, the first or second end effector is disposed within a top entry load lock for picking or dropping a plurality of substrates therein. The first and second end effectors can be selectively and independently movable. The robot adapter can be rotatable so as to selectively position one of the end effectors over the top entry load lock. Methods for quickly swapping processed and unprocessed substrates in the top entry load lock are also disclosed and claimed.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: June 6, 2017
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Robert Brent Vopat, Jason M. Schaller, William Weaver
  • Publication number: 20160379853
    Abstract: An electrostatic chuck with LED heating is disclosed. The electrostatic chuck with LED heating comprises a first subassembly, which comprises a LED heater, and a second subassembly, which comprises an electrostatic chuck. The LED substrate heater subassembly includes a base having a recessed portion. A plurality of light emitting diodes (LEDs) is disposed within the recessed portion. The LEDs may be GaN or GaP LEDs, which emit light at a wavelength which is readily absorbed by silicon, thus efficiently and quickly heating the substrate. The second subassembly, which comprises an electrostatic chuck, is disposed on the LED substrate heater subassembly. The electrostatic chuck includes a top dielectric layer and an interior layer that are transparent at the wavelength emitted by the LEDs. One or more electrodes are disposed between the top dielectric layer and the interior layer to create the electrostatic force.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventors: Jason M. Schaller, William T. Weaver, Morgan D. Evans, Robert Brent Vopat, Paul E. Pergande, Julian G. Blake, David Blahnik, Ala Moradian
  • Publication number: 20160379854
    Abstract: A system for heating substrates within a chamber, which may be maintained at vacuum conditions, is disclosed. The LED substrate heater comprises a base having a recessed portion surrounded by sidewalls. A plurality of light emitting diodes (LEDs) are disposed within the recessed portion. The LEDs may be GaN or GaP LEDs, which emit light at a wavelength which is readily absorbed by silicon or a coating on the silicon, thus efficiently and quickly heating the substrate. A transparent window is disposed over the recessed portion, forming a sealed enclosure in which the LEDs are disposed. A sealing gasket may be disposed between the sidewalls and the window.
    Type: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventors: Robert Brent Vopat, Gary E. Wyka, David Blahnik, Jason M. Schaller, William T. Weaver
  • Publication number: 20160355927
    Abstract: Apparatus and methods for aligning large susceptors in batch processing chambers are described. Apparatus and methods for controlling the parallelism of a susceptor relative to a gas distribution assembly are also described.
    Type: Application
    Filed: May 25, 2016
    Publication date: December 8, 2016
    Inventors: William T. Weaver, Robert Brent Vopat, Joseph Yudovsky, Jason M. Schaller
  • Publication number: 20160329458
    Abstract: A system for heating substrates while being transported between the load lock and the platen is disclosed. The system comprises an array of light emitting diodes (LEDs) disposed above the alignment station. The LEDs may be GaN or GaP LEDs, which emit light at a wavelength which is readily absorbed by silicon, thus efficiently and quickly heating the substrate. The LEDs may be arranged so that the rotation of the substrate during alignment results in a uniform temperature profile of the substrate. Further, heating during alignment may also increase throughput and eliminate preheating stations that are currently associated with the processing chamber.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 10, 2016
    Inventors: Morgan D. Evans, Jason M. Schaller, D. Jeffrey Lischer, Ala Moradian, William T. Weaver, Robert Brent Vopat
  • Publication number: 20160307782
    Abstract: Buffer chamber including robots, a carousel and at least one heating module for use with a batch processing chamber are described. Robot configurations for rapid and repeatable movement of wafers into and out of the buffer chamber and cluster tools incorporating the buffer chambers and robots are described.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Inventors: William T. Weaver, Jason M. Schaller, Robert Brent Vopat, David Blahnik, Benjamin B. Riordon, Paul E. Pergande
  • Publication number: 20160293458
    Abstract: A system for heating substrates while being transported between processing chambers is disclosed. The system comprises an array of light emitting diodes (LEDs) disposed in the transfer chamber. The LEDs may be GaN LEDs, which emit light at a wavelength which is readily absorbed by silicon, thus efficiently and quickly heating the substrate. A controller is in communication with the LEDs. The LEDs may be independently controllable, so that the LEDs that are disposed above the substrate as it is moved from one processing chamber to another are illuminated. In other words, the illumination of the LEDs and the movements of the substrate handling robot may be synchronized by the controller.
    Type: Application
    Filed: April 6, 2015
    Publication date: October 6, 2016
    Inventors: Jason M. Schaller, Morgan D. Evans, Ala Moradian, Robert Brent Vopat, David Blahnik, William T. Weaver
  • Publication number: 20160218028
    Abstract: Wafer cassettes and methods of use that provide heating a cooling to a plurality of wafers to decrease time between wafer switching in a processing chamber. Wafers are supported on a wafer lift which can move all wafers together or on independent lift pins which can move individual wafers for heating and cooling.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 28, 2016
    Inventors: Jason M. Schaller, Robert Brent Vopat, Paul E. Pergande, Benjamin B. Riordon, David T. Blahnik, William T. Weaver
  • Publication number: 20160144576
    Abstract: A hardened cellular material formed by stretching a stretchable material is disclosed. Fluid is allowed to enter softened stretchable material through apertures in a stretching surface to define voids at locations in the stretchable material at locations defined by the apertures. The stretchable material is then hardened with voids at locations controlled/defined by the apertures.
    Type: Application
    Filed: July 9, 2013
    Publication date: May 26, 2016
    Applicant: Fly Technologies Inc.
    Inventors: Robert Brent CORDNER, Glenn HIBBARD
  • Patent number: 9287148
    Abstract: A system and method for dynamic heating of a workpiece during processing is disclosed. The system includes an ion source and a plurality of LEDs arranged in an array, which are directed at a portion of the surface of the workpiece. The LEDs are selected so that they emit light in a frequency range that is readily absorbed by the workpiece, thus heating the workpiece. In some embodiments, the LEDs heat a portion of the workpiece just before that portion is processed by an ion beam. In another embodiment, the LEDs heat a portion of the workpiece as it is being processed. The LEDs may be arranged in an array, which may have a width that is at least as wide as the width of the ion beam. The array also has a length, perpendicular to its width, having one or more rows of LEDs.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: March 15, 2016
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Morgan D. Evans, Kevin Anglin, D. Jeffrey Lischer, William T. Weaver, Jason M. Schaller, Robert Brent Vopat
  • Patent number: 9202734
    Abstract: A manufacturing system includes a gantry module, having an end effector, for moving workpieces from a conveyor system to a working area, such as a swap module. The swap module removes a matrix of processed workpieces from a load lock and place a matrix of unprocessed workpieces in its place. The processed workpieces are then moved by the gantry module back to the conveyor. Due to the speed of operation, the end effector may build up excessive electrostatic charge. To remove this built up charge, grounded electrically-conductive brushes are strategically positioned so that, as the end effector moves during normal operation, it comes in contact with these brushes. This removes this built up charge on the end effector, without affecting throughput. In another embodiment, the end effector moves over the brushes while the swap module is moving matrix to and from the load lock.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: December 1, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Jason Schaller, Robert Brent Vopat
  • Patent number: 9145271
    Abstract: A system and method for the handling of workpieces in a workpiece processing system is disclosed. The system utilizes three conveyor belts, where one may be a loading belt, feeding unprocessed workpieces from its associated workpiece carrier to a processing system. A second conveyor belt may be an unloading belt, receiving processed workpieces from the processing system and filling its associated workpiece carrier. The third conveyor belt may be exchanging its workpiece carrier during this time, so that it is available to start operating as the loading belt once all of the workpieces have been removed from the workpiece carrier associated with the first conveyor belt.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: September 29, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Robert Brent Vopat, Malcolm N. Daniel, Luke Bonecutter, Jason M. Schaller, Charles T. Carlson, William T. Weaver
  • Publication number: 20150249030
    Abstract: A manufacturing system includes a gantry module, having an end effector, for moving workpieces from a conveyor system to a working area, such as a swap module. The swap module removes a matrix of processed workpieces from a load lock and place a matrix of unprocessed workpieces in its place. The processed workpieces are then moved by the gantry module back to the conveyor. Due to the speed of operation, the end effector may build up excessive electrostatic charge. To remove this built up charge, grounded electrically-conductive brushes are strategically positioned so that, as the end effector moves during normal operation, it comes in contact with these brushes. This removes this built up charge on the end effector, without affecting throughput. In another embodiment, the end effector moves over the brushes while the swap module is moving matrix to and from the load lock.
    Type: Application
    Filed: May 18, 2015
    Publication date: September 3, 2015
    Inventors: Jason Schaller, Robert Brent Vopat
  • Patent number: 9064920
    Abstract: A manufacturing system includes a gantry module, having an end effector, for moving workpieces from a conveyor system to a working area, such as a swap module. The swap module removes a matrix of processed workpieces from a load lock and place a matrix of unprocessed workpieces in its place. The processed workpieces are then moved by the gantry module back to the conveyor. Due to the speed of operation, the end effector may build up excessive electrostatic charge. To remove this built up charge, grounded electrically-conductive brushes are strategically positioned so that, as the end effector moves during normal operation, it comes in contact with these brushes. This removes this built up charge on the end effector, without affecting throughput. In another embodiment, the end effector moves over the brushes while the swap module is moving matrix to and from the load lock.
    Type: Grant
    Filed: July 22, 2012
    Date of Patent: June 23, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Jason Schaller, Robert Brent Vopat
  • Patent number: 9026249
    Abstract: A robot calibration method which aligns the coordinate system of a gantry module with the coordinate system of a camera system is disclosed. The method includes using an alignment tool, which allows the operator to place workpieces in locations known by the gantry module. An image is then captured of these workpieces by the camera system. A controller uses the information from the gantry module and the camera system to determine the relationship between the two coordinate systems. It then determines a transformation equation to convert from one coordinate system to the other.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: May 5, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Jason M. Schaller, Robert Brent Vopat, James R. McLane
  • Patent number: 9016998
    Abstract: A load lock having a reduced volume, thereby allowing faster pumping and venting, is disclosed. The load lock uses a movable bottom wall to modify the volume of the chamber to be pumped. In a first position, the movable wall is disposed so as to create a small internal volume. In a second position, the bottom wall is moved downward, allowing the workpiece to be in contact with a process chamber or an exit aperture. The bottom wall may be sealed in the first position through the use of a sealing mechanism, such as a magnetic clamp. The bottom wall may also include a workpiece holding mechanism. The top wall may be a removable cover, which is moved by an actuator. A robotic mechanism may supply workpieces to the load lock while the top wall is in the open position.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 28, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Jeffrey C. Blahnik, Robert Brent Vopat, William T. Weaver
  • Publication number: 20140341700
    Abstract: A system and method are disclosed for substrate handling. The system can include a robot adapter configured to connect to a robot, and first and second end effectors connected to the robot adapter. The robot adapter is configured to move the first and second end effectors from a first, retracted, position to a second, extended, position. In the extended position, the first or second end effector is disposed within a top entry load lock for picking or dropping a plurality of substrates therein. The first and second end effectors can be selectively and independently movable. The robot adapter can be rotatable so as to selectively position one of the end effectors over the top entry load lock. Methods for quickly swapping processed and unprocessed substrates in the top entry load lock are also disclosed and claimed.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 20, 2014
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Robert Brent Vopat, Jason M. Schaller, William Weaver
  • Publication number: 20140252787
    Abstract: A gripper system which utilizes two different suction systems is disclosed. This gripper system utilizes one suction system to pick up an item, while using the second suction system to hold the item. In some embodiments, a Venturi device based suction system is used as the first suction system to pick up the item, as this type of system is proficient at picking up items without requiring initial contact to create a seal. In some embodiments, a vacuum based system is used as the second suction system, as this type of system is able to hold items cost effectively.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Jason Schaller, Robert Brent Vopat
  • Publication number: 20140241848
    Abstract: A slitvalve that uses magnetic energy to move a door in a direction normal to the plane of the wall is disclosed. An electrically switchable magnet is used to draw the door toward the wall to seal an aperture in the wall. Compressed Dry Air or other mechanisms may be employed to move the door between a first open position and a second closed position. A method of passing a workpiece between two different environments utilizing this magnetic slitvalve is also disclosed.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 28, 2014
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Robert Brent Vopat, Jeffrey Blahnik, Christopher Grant, William T. Weaver