Patents by Inventor Gary L. Curtis
Gary L. Curtis 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: 6660098Abstract: An apparatus for processing a workpiece in a micro-environment includes a workpiece housing connected to a motor for rotation. The workpiece housing defines a substantially closed processing chamber therein in which one or more processing fluids are distributed across at least one face of the workpiece by centrifugal force generated during rotation of the housing. A dividing member at the edge of the spinning workpiece separates flow of fluids off of the top and bottom surfaces of the workpiece.Type: GrantFiled: August 2, 2001Date of Patent: December 9, 2003Assignee: Semitool, Inc.Inventors: Gary L Curtis, Raymon F. Thompson
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Patent number: 6652219Abstract: A processor for processing articles, such as semiconductor wafers, includes an enclosure defining a substantially enclosed clean processing chamber and at least one processing station disposed in the processing chamber. An interface section is disposed adjacent an interface end of the enclosure. The interface section includes at least one interface port through which a pod containing articles for processing are loaded or unloaded to or from the processor. An article extraction mechanism adapted to seal with the pod removes articles from the pod without exposing the articles to ambient atmospheric conditions in the interface section. The article processor also preferably includes an article insertion mechanism adapted to seal with a pod in the interface section. The article insertion mechanism allows insertion of the articles into the pod after processing by at least one processing station.Type: GrantFiled: July 25, 2002Date of Patent: November 25, 2003Assignee: Semitool, Inc.Inventors: Jeffry A. Davis, Kert L. Dolechek, Gary L. Curtis
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Publication number: 20030202871Abstract: A processor for processing integrated circuit wafers, semiconductor substrates, data disks and similar units requiring very low contamination levels. The processor has an interface section which receives wafers in standard wafer carriers. The interface section transfers the wafers from carriers onto novel trays for improved processing. The interface unit can hold multiple groups of multiple trays. A conveyor having an automated arm assembly moves wafers supported on a tray. The conveyor moves the trays from the interface along a track to several processing stations. The processing stations are accessed from an enclosed area adjoining the interface section.Type: ApplicationFiled: May 7, 2003Publication date: October 30, 2003Inventors: Raymon F. Thompson, Robert W. Berner, Gary L. Curtis, Stephen P. Culliton, Blaine G. Wright, Darryl S. Byle
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Publication number: 20030198541Abstract: A processor for processing articles, such as semiconductor wafers, in a substantially clean atmosphere is set forth. The processor includes an enclosure defining a substantially enclosed clean processing chamber and at least one processing station disposed in the processing chamber. An interface section is disposed adjacent an interface end of the enclosure. The interface section includes at least one interface port through which a pod containing articles for processing are loaded or unloaded to or from the processor. The interface section is hygienically separated from the processing chamber since the interface section is generally not as clean as the highly hygienic processing chamber. An article extraction mechanism adapted to seal with the pod is employed. The mechanism is disposed to allow extraction of the articles contained within the pod into the processing chamber without exposing the articles to ambient atmospheric conditions in the interface section.Type: ApplicationFiled: June 9, 2003Publication date: October 23, 2003Applicant: Semitool, Inc.Inventors: Jeffry A. Davis, Kert L. Dolechek, Gary L. Curtis
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Patent number: 6632292Abstract: This invention provides a process for treating a workpiece having a front side, a back side, and an outer perimeter. In accordance with the process, a processing fluid is selectively applied or excluded from an outer peripheral margin of at least one of the front or back sides or the workpiece. Exclusion and/or application of the processing fluid occurs by applying one or more processing fluids to the workpiece as the workpiece and corresponding reactor are spinning about an axis of rotation that is generally orthogonal to the center of the face of the workpiece being processed. The flow rate of the one or more processing fluids, fluid pressure, and/or spin rate are used to control the extent to which the processing fluid is selectively applied or excluded from the outer peripheral margin.Type: GrantFiled: September 28, 2000Date of Patent: October 14, 2003Assignee: Semitool, Inc.Inventors: Brian K. Aegerter, Curt T. Dundas, Tom L. Ritzdorf, Gary L. Curtis, Michael Jolley
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Patent number: 6622737Abstract: In a method for rinsing and drying a semiconductor workpiece in a micro-environment, the workpiece is placed into a rinser/dryer housing. The rinser/dryer housing is rotated by a rotor motor. The rinser/dryer housing defines a substantially closed rinser/dryer chamber. Rinsing and drying fluids are distributed across at least one face of the semiconductor workpiece by the action of centrifugal force generated during rotation of the housing. A fluid supply system is connected to sequentially supply a rinsing fluid followed by a drying fluid to the chamber as the housing is rotated.Type: GrantFiled: August 13, 2002Date of Patent: September 23, 2003Assignee: Semitool, Inc.Inventors: Gary L. Curtis, Raymon F. Thompson
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Patent number: 6599075Abstract: A processor for processing articles, such as semiconductor wafers, in a substantially clean atmosphere is set forth. The processor includes an enclosure defining a substantially enclosed clean processing chamber and at least one processing station disposed in the processing chamber. An interface section is disposed adjacent an interface end of the enclosure. The interface section includes at least one interface port through which a pod containing articles for processing are loaded or unloaded to or from the processor. The interface section is hygienically separated from the processing chamber since the interface section is generally not as clean as the highly hygienic processing chamber. An article extraction mechanism adapted to seal with the pod is employed. The mechanism is disposed to allow extraction of the articles contained within the pod into the processing chamber without exposing the articles to ambient atmospheric conditions in the interface section.Type: GrantFiled: June 25, 2002Date of Patent: July 29, 2003Assignee: Semitool, Inc.Inventors: Jeffry A. Davis, Kert L. Dolechek, Gary L. Curtis
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Publication number: 20030131874Abstract: A semiconductor processing system for wafers or other semiconductor articles. The system uses an interface section at an end of the machine accessible from the clean room. A plurality of processing stations are arranged away from the clean room interface. A transfer subsystem removes wafers from supporting carriers, and positions both the wafers and carriers onto a carrousel which is used as an inventory storage. Wafers are shuttled between the inventory and processing stations by a robotic conveyor which is oriented to move toward and away from the interface end. The system processes the wafers without wafer carriers.Type: ApplicationFiled: January 3, 2003Publication date: July 17, 2003Inventors: Jeffrey A. Davis, Gary L. Curtis
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Patent number: 6558470Abstract: An apparatus for processing a microelectronic workpiece in a micro-environment is set forth. The apparatus includes a first chamber member having an interior chamber wall and a second chamber member having an interior chamber wall. The first and second chamber members are adapted for relative movement between a loading position in which the first and second chamber members are distal one another and a processing position in which the first and second chamber members are proximate one another to define a processing chamber. At least one workpiece support assembly is disposed between the first and second chamber members for supporting the microelectronic workpiece.Type: GrantFiled: April 30, 2001Date of Patent: May 6, 2003Assignee: Semitool, Inc.Inventors: Gary L. Curtis, Raymon F. Thompson
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Publication number: 20030080453Abstract: A method for capping a stem web including passing the stem web through a first nip against a first heated nip roll so as to partially cap the stems; cooling the web; and passing the stem web through a second nip against a second heated nip roll to completely cap the stems to a diameter “D”. In preferred embodiments the two nips are on opposite sides of a larger central cooled roll positioned between the heated rolls. Preferably, the reaction forces between the rolls are measured and controlled at each end of each other heated rolls. The invention is particularly adapted to making abrasive particles that are attached to a driving mechanism via headed stem fasteners formed by the method.Type: ApplicationFiled: November 1, 2001Publication date: May 1, 2003Applicant: 3M Innovative Properties CompanyInventors: Randy S. Bay, Cristina U. Thomas, David F. Slama, Richard T. Paxton, Gary L. Curtis, Jonathan J. Mattson
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Publication number: 20030017034Abstract: A semiconductor processing system for wafers or other semiconductor articles. The system uses an interface section at an end of the machine accessible from the clean room. A plurality of processing stations are arranged away from the clean room interface. A transfer subsystem removes wafers from supporting carriers, and positions both the wafers and carriers onto a carrousel which is used as an inventory storage. Wafers are shuttled between the inventory and processing stations by a robotic conveyor which is oriented to move toward and away from the interface end. The system processes the wafers without wafer carriers.Type: ApplicationFiled: April 30, 2001Publication date: January 23, 2003Inventors: Jeffrey A. Davis, Gary L. Curtis
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Publication number: 20030002961Abstract: A processor for processing articles, such as semiconductor wafers, includes an enclosure defining a substantially enclosed clean processing chamber and at least one processing station disposed in the processing chamber. An interface section is disposed adjacent an interface end of the enclosure. The interface section includes at least one interface port through which a pod containing articles for processing are loaded or unloaded to or from the processor. An article extraction mechanism adapted to seal with the pod removes articles from the pod without exposing the articles to ambient atmospheric conditions in the interface section. The article processor also preferably includes an article insertion mechanism adapted to seal with a pod in the interface section. The article insertion mechanism allows insertion of the articles into the pod after processing by at least one processing station.Type: ApplicationFiled: July 25, 2002Publication date: January 2, 2003Applicant: Semitool, Inc.Inventors: Jeffry A. Davis, Kert L. Dolechek, Gary L. Curtis
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Publication number: 20020195129Abstract: In a method for rinsing and drying a semiconductor workpiece in a micro-environment, the workpiece is placed into a rinser/dryer housing. The rinser/dryer housing is rotated by a rotor motor. The rinser/dryer housing defines a substantially closed rinser/dryer chamber. Rinsing and drying fluids are distributed across at least one face of the semiconductor workpiece by the action of centrifugal force generated during rotation of the housing. A fluid supply system is connected to sequentially supply a rinsing fluid followed by a drying fluid to the chamber as the housing is rotated.Type: ApplicationFiled: August 13, 2002Publication date: December 26, 2002Applicant: Semitool, Inc.Inventors: Gary L. Curtis, Raymon F. Thompson
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Publication number: 20020189652Abstract: A method for processing a semiconductor wafer or similar article includes the step of spinning the wafer and applying a fluid to a first side of the wafer, while it is spinning. The fluid flows radially outwardly in all directions, over the first side of the wafer, via centrifugal force. As the fluid flows off of the circumferential edge of the wafer, it is contained in an annular reservoir, so that the fluid also flows onto an outer annular area of the second side of the wafer. An opening allows fluid to flow out of the reservoir. The opening defines the location of a parting line beyond which the fluid will not travel on the second side of the wafer. An apparatus for processing a semiconductor wafer or similar article includes a reactor having a processing chamber formed by upper and lower rotors. The wafer is supported between the rotors. The rotors are rotated by a spin motor. A processing fluid is introduced onto the top or bottom surface of the wafer, or onto both surfaces, at a central location.Type: ApplicationFiled: August 20, 2002Publication date: December 19, 2002Applicant: Semitool, Inc.Inventors: Steven L. Peace, Gary L. Curtis, Raymon F. Thompson, Brian Aegerter, Curt T. Dundas
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Patent number: 6494956Abstract: An apparatus for processing a workpiece in a micro-environment includes a workpiece housing connected to a motor for rotation. The workpiece housing forms a substantially closed processing chamber where processing fluids are distributed across at least one face of the workpiece by centrifugal force generated during rotation of the housing. The housing may also be detached from the motor and moved to another location. The housing consequently serves as a processing chamber, as well as a storage or transport chamber.Type: GrantFiled: August 2, 2001Date of Patent: December 17, 2002Assignee: Semitool, Inc.Inventors: Gary L. Curtis, Raymon F. Thompson
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Publication number: 20020185163Abstract: An apparatus for processing a semiconductor wafer or similar article includes a reactor having a processing chamber formed by upper and lower rotors. The wafer is supported between the rotors. The rotors are rotated by a spin motor. A processing fluid is introduced onto the top or bottom surface of the wafer, or onto both surfaces, at a central location. The fluid flows outwardly uniformly and in all directions. A wafer support automatically lifts the wafer, so that it can be removed from the reactor by a robot, when the rotors separate from each other after processing.Type: ApplicationFiled: July 23, 2002Publication date: December 12, 2002Applicant: Semitool, Inc.Inventors: Steven L. Peace, Gary L. Curtis, Raymon F. Thompson, Brian Aegerter, Curt T. Dundas
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Publication number: 20020168863Abstract: In a process for treating a workpiece such as a semiconductor wafer, a processing fluid is selectively applied or excluded from an outer peripheral margin of at least one of the front or back sides of the workpiece. Exclusion and/or application of the processing fluid occurs by applying one or more processing fluids to the workpiece while the workpiece and a reactor holding the workpiece are spinning. The flow rate of the processing fluids, fluid pressure, and/or spin rate are used to control the extent to which the processing fluid is selectively applied or excluded from the outer peripheral margin.Type: ApplicationFiled: June 26, 2002Publication date: November 14, 2002Applicant: Semitool, Inc.Inventors: Brian Aegerter, Curt T. Dundas, Michael Jolley, Tom L. Ritzdorf, Steven L. Peace, Gary L. Curtis, Raymon F. Thompson
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Publication number: 20020164232Abstract: A processor for processing articles, such as semiconductor wafers, in a substantially clean atmosphere is set forth. The processor includes an enclosure defining a substantially enclosed clean processing chamber and at least one processing station disposed in the processing chamber. An interface section is disposed adjacent an interface end of the enclosure. The interface section includes at least one interface port through which a pod containing articles for processing are loaded or unloaded to or from the processor. The interface section is hygienically separated from the processing chamber since the interface section is generally not as clean as the highly hygienic processing chamber. An article extraction mechanism adapted to seal with the pod is employed. The mechanism is disposed to allow extraction of the articles contained within the pod into the processing chamber without exposing the articles to ambient atmospheric conditions in the interface section.Type: ApplicationFiled: June 25, 2002Publication date: November 7, 2002Applicant: Semitool, Inc.Inventors: Jeffry A. Davis, Kert L. Dolechek, Gary L. Curtis
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Publication number: 20020144973Abstract: In a process for treating a workpiece such as a semiconductor wafer, a processing fluid is selectively applied or excluded from an outer peripheral margin of at least one of the front or back sides of the workpiece. Exclusion and/or application of the processing fluid occurs by applying one or more processing fluids to the workpiece while the workpiece and a reactor holding the workpiece are spinning. The flow rate of the processing fluids, fluid pressure, and/or spin rate are used to control the extent to which the processing fluid is selectively applied or excluded from the outer peripheral margin.Type: ApplicationFiled: May 17, 2002Publication date: October 10, 2002Applicant: Semitool, Inc.Inventors: Brian Aegerter, Curt T. Dundas, Michael Jolley, Tom L. Ritzdorf, Steven L. Peace, Gary L. Curtis, Raymon F. Thompson
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Publication number: 20020146297Abstract: A method and apparatus for directing a coolant stream onto a cutting tool is made up of a nozzle pivotally mounted on a machine tool, the nozzle being automatically adjusted in response to movement of the machine tool via a retractable plunger or other linear drive member so as to cause the coolant stream to intersect the interface between a workpiece and each cutting tool that is brought into cutting position on the machine tool; and the nozzle is pivotal between a reference position and a different intermediate position corresponding to the length or diameter of the cutting tool which is advanced into cutting position.Type: ApplicationFiled: April 9, 2002Publication date: October 10, 2002Inventor: Gary L. Curtis