Patents by Inventor Robert Brent Vopat
Robert Brent Vopat 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: 20150249030Abstract: 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: ApplicationFiled: May 18, 2015Publication date: September 3, 2015Inventors: Jason Schaller, Robert Brent Vopat
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Patent number: 9064920Abstract: 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: GrantFiled: July 22, 2012Date of Patent: June 23, 2015Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Jason Schaller, Robert Brent Vopat
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Patent number: 9026249Abstract: 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: GrantFiled: September 5, 2013Date of Patent: May 5, 2015Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Jason M. Schaller, Robert Brent Vopat, James R. McLane
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Patent number: 9016998Abstract: 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: GrantFiled: March 14, 2013Date of Patent: April 28, 2015Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Jeffrey C. Blahnik, Robert Brent Vopat, William T. Weaver
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Publication number: 20140341700Abstract: 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: ApplicationFiled: May 20, 2013Publication date: November 20, 2014Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Robert Brent Vopat, Jason M. Schaller, William Weaver
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Publication number: 20140252787Abstract: 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: ApplicationFiled: May 19, 2014Publication date: September 11, 2014Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Jason Schaller, Robert Brent Vopat
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Publication number: 20140241848Abstract: 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: ApplicationFiled: February 25, 2013Publication date: August 28, 2014Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Robert Brent Vopat, Jeffrey Blahnik, Christopher Grant, William T. Weaver
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Patent number: 8777284Abstract: 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: GrantFiled: April 20, 2012Date of Patent: July 15, 2014Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Jason Schaller, Robert Brent Vopat
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Publication number: 20140165908Abstract: An ion implanter and method for facilitating expeditious performance of maintenance on a component of the ion implanter in a manner that reduces downtime while increasing throughput of the ion implanter. The ion implanter includes a process chamber, a transfer chamber connected to the process chamber, a first isolation gate configured to controllably seal the transfer chamber from the process chamber, and a second isolation gate configured to controllably seal the transfer chamber from an atmospheric environment, wherein a component of the ion implanter can be transferred between the process chamber and the transfer chamber for performing maintenance on the component outside of the process chamber. Performing maintenance on a component of the ion implanter includes the steps of transferring the component from the process chamber to the transfer chamber, sealing the transfer chamber, venting the transfer chamber to atmospheric pressure, an opening the transfer chamber to an atmospheric environment.Type: ApplicationFiled: December 10, 2013Publication date: June 19, 2014Applicant: Varian Semiconductor Equipment Associates, Inc.Inventors: Aaron P. Webb, Charles T. Carlson, Paul Forderhase, William T. Weaver, Robert Brent Vopat
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Publication number: 20140076688Abstract: 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: ApplicationFiled: September 5, 2013Publication date: March 20, 2014Inventors: Robert Brent Vopat, Malcolm N. Daniel, Luke Bonecutter, Jason M. Schaller, Charles T. Carlson, William T. Weaver
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Publication number: 20140081456Abstract: 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: ApplicationFiled: September 5, 2013Publication date: March 20, 2014Inventors: Jason M. Schaller, Robert Brent Vopat, James R. McLane
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Publication number: 20140023461Abstract: 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: ApplicationFiled: July 22, 2012Publication date: January 23, 2014Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Jason Schaller, Robert Brent Vopat
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Publication number: 20130277999Abstract: 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: ApplicationFiled: April 20, 2012Publication date: October 24, 2013Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.Inventors: Jason Schaller, Robert Brent Vopat