Patents by Inventor Jeffry Davis
Jeffry Davis 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: 6736148Abstract: An automated semiconductor processing system has an indexer bay perpendicularly aligned with a process bay within a clean air enclosure. An indexer in the indexer bay provides stocking or storage for work in progress semiconductor wafers. Process chambers are located in the process bay. A process robot moves between the indexer bay and process bay to carry semi-conductor wafers to and from the process chambers. The process robot has a robot arm vertically moveable along a lift rail. Semiconductor wafers are carried offset from the robot arm, to better avoid contamination. The automated system is compact and requires less clean room floor space.Type: GrantFiled: May 22, 2001Date of Patent: May 18, 2004Assignee: Semitool, Inc.Inventors: Jeffry A. Davis, Kevin P. Meyer, Kert L. Dolechek
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Publication number: 20040084066Abstract: A system and method for cleaning boxes used for handling flat media includes a rotor rotatably mounted within an enclosure, with spray nozzles in the enclosure for spraying fluid toward the rotor. The rotor has at least one box holder assembly for holding a box. At least one retainer bar is located on the rotor for engaging a front section of the box to retain the box in the box holder assembly during rotation of the rotor. The retainer bar is preferably moveable from a first position where the retainer bar restrains the box on the box holder assembly, to a second position where the retainer bar is moved away from the box. The box holder assembly may alternatively include a base with a plurality of grooved elements thereon that are adapted to engage a flange on the box for securing the box to the box holder assembly.Type: ApplicationFiled: November 1, 2002Publication date: May 6, 2004Applicant: Semitool, Inc.Inventors: Kert Dolechek, Jeffry Davis
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Patent number: 6723174Abstract: An automated semiconductor processing system has an indexer bay perpendicularly aligned with a process bay within a clean air enclosure. An indexer in the indexer bay provides stocking or storage for work in progress semiconductor wafers. Process chambers are located in the process bay: A process robot moves between the indexer bay and process bay to carry semi-conductor wafers to and from the process chambers. The process robot has a robot arm vertically moveable along a lift rail. Semiconductor wafers are carried offset from the robot arm, to better avoid contamination. The automated system is compact and requires less clean room floor space.Type: GrantFiled: June 5, 2002Date of Patent: April 20, 2004Assignee: Semitool, Inc.Inventors: Gordon Ray Nelson, Daniel P. Bexten, Jeffry A. Davis
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Publication number: 20040010930Abstract: A centrifugal processor includes an elongated inlet and outlet in fluid communication with a rotor housing having an eccentric bowl. A rotor having fan blades and adapted to hold flat media is rotatably disposed within the rotor housing. An intake gate is pivotably mounted to the rotor housing to swing about the rotor into a closed position during a rinse mode and into an open position during a drying mode. The gate has a wedge that is designed to almost contact the rotor when the gate is in the open position for drying. The geometry of the elongated inlet, outlet, and eccentric bowl, in combination with the design of the rotor and that of the intake gate, work together to create a cross flow fan having a flow path across the flat media and one that exposes the flat media to large volumes of incoming air only once.Type: ApplicationFiled: July 19, 2002Publication date: January 22, 2004Applicant: Semitool, Inc.Inventors: Kert Dolechek, Jeffry Davis
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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: 20030209404Abstract: An automated processing system has an indexer bay perpendicularly aligned with a process bay within a clean air enclosure. An indexer in the indexer bay provides stocking or storage for work in progress wafers or articles. Process chambers are located in the process bay. A transfer robot moves wafers from a pod unsealed at a docking station into a carrier at a transfer station. The carrier has tapered or stepped outside surfaces engaging corresponding inside surfaces on a rotor within a process chamber. A process robot moves between the indexer bay and process bay to carry wafers to and from the process chambers. The process robot has a robot arm vertically moveable along a lift rail. Wafers are carried offset from the robot arm, to better avoid contamination. The automated system is compact and requires less clean room floor space.Type: ApplicationFiled: December 30, 2002Publication date: November 13, 2003Inventors: Jeffry A. Davis, Gordon Ray Nelson, Daniel P. Bexten
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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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Publication number: 20030188447Abstract: A semiconductor wafer processing system has a carrier including wafer slots. A process robot engages the carrier and installs the carrier into a rotor within a process chamber. The rotor has a tapered or stepped inside surface matching a tapered or stepped outside surface of the carrier. Wafer retainers on the carrier pivot to better secure wafers within the carrier.Type: ApplicationFiled: March 25, 2003Publication date: October 9, 2003Applicant: Semitool, Inc.Inventors: Gordon R. Nelson, Jeffry A. Davis, Raymon F. Thompson, Eric J. Bergman
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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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Patent number: 6575689Abstract: A process system for processing semiconductor wafers includes a stocker module, and immersion module, and a process module. A process robot moves on a lateral rail to transfer wavers between the modules. The immersion module is separated from the other modules, to avoid transmission of vibration. Immersion tanks are radially positioned within the immersion module, to provide a compact design. An immersion robot moves batches of wafers on an end effector between the immersion tanks. The end effector may be detachable from the immersion robot, so that the immersion robot can move a second batch of wafers, while the first batch of wafers undergoes an immersion process.Type: GrantFiled: May 29, 2002Date of Patent: June 10, 2003Assignee: Semitool, Inc.Inventors: Randy Harris, David Peterson, Jeffry Davis
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Patent number: 6572320Abstract: An automated workpiece processing system has a transfer robot including an end effector having arms which move linearly towards each other to pick up a workpiece. Each arm has two workpiece contactors for engaging the edges of the workpiece. The contactors are positioned equally distant from the workpiece edges. The arms are moved linearly together, while they remain parallel to each other. The contactors contact the edges of the workpiece without causing sliding or displacement of the workpiece. Transfer robot movement or pre-positioning of the end effector is minimized, expediting handling of workpieces within the automated system.Type: GrantFiled: July 16, 2001Date of Patent: June 3, 2003Assignee: Semitool, Inc.Inventor: Jeffry Davis
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Patent number: 6536131Abstract: A semiconductor wafer processing system has a carrier including wafer slots. A process robot engages the carrier and installs the carrier into a rotor within a process chamber. The rotor has a tapered or stepped inside surface matching a tapered or stepped outside surface of the carrier. Wafer retainers on the carrier pivot to better secure wafers within the carrier.Type: GrantFiled: December 12, 2000Date of Patent: March 25, 2003Assignee: Semitool, Inc.Inventor: Jeffry Davis
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Publication number: 20030051973Abstract: A workpiece handling and processing system has a interface section for loading wafers from cassettes into carriers. The wafers are lifted out of cassettes by a buffer elevator and moved into a position over an open carrier by a buffer robot. A comb elevator lifts combs entirely through the open cassette, to transfer the wafers from the buffer robot into the carrier. A process robot moves loaded carriers from the interface section to one or more process chambers in a process section. The advantages of processing wafers within a carrier are achieved within a compact space and with high throughput.Type: ApplicationFiled: July 19, 2002Publication date: March 20, 2003Applicant: Semitool, Inc.Inventor: Jeffry Davis
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Publication number: 20030051974Abstract: An automated processing system for processing flat workpieces, such as semiconductor wafers, operates by loading the workpieces into a first carrier. A process robot is adapted to engage external features of the first carrier, for lifting and moving the first carrier within the system. The process robot delivers the first carrier holding the wafers of a first size to a process chamber. The first carrier is secured in the process chamber by one or more of the external features of the first carrier. The first carrier has interior features, such as combs and slots, for holding wafers of a different first size. A second carrier has external features which are the same as the external features of the first carrier. The second carrier has inside features which are dimensioned to hold wafers of a second size, different from the first size. The automated processing system can accordingly handle or operate with both the first and second carriers, and thereby process workpieces having different sizes.Type: ApplicationFiled: July 19, 2002Publication date: March 20, 2003Applicant: Semitool, Inc.Inventor: Jeffry Davis
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Publication number: 20030051972Abstract: An automated processing system has an indexer bay perpendicularly aligned with a process bay within a clean air enclosure. An indexer in the indexer bay provides stocking or storage for work in progress wafers. Immersion and spin process modules are located in the process bay. A process robot moves between the indexer bay and process bay to carry wafers to and from the process modules. The wafers are processed within a carrier, reducing the potential for physical damage to the wafers. The process robot hands the carrier off to a rotor, in the spin process modules, or to an immersion elevator in the immersion module. Both spin and immersion processing are performed within an automated system.Type: ApplicationFiled: July 19, 2002Publication date: March 20, 2003Applicant: Semitool, Inc.Inventor: Jeffry Davis
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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: 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: 20020154976Abstract: A process system for processing semiconductor wafers includes a stocker module, and immersion module, and a process module. A process robot moves on a lateral rail to transfer wavers between the modules. The immersion module is separated from the other modules, to avoid transmission of vibration. Immersion tanks are radially positioned within the immersion module, to provide a compact design. An immersion robot moves batches of wafers on an end effector between the immersion tanks. The end effector may be detachable from the immersion robot, so that the immersion robot can move a second batch of wafers, while the first batch of wafers undergoes an immersion process.Type: ApplicationFiled: May 29, 2002Publication date: October 24, 2002Applicant: Semitool, Inc.Inventors: Randy Harris, David Peterson, Jeffry Davis
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Publication number: 20020150449Abstract: An automated semiconductor processing system has an indexer bay perpendicularly aligned with a process bay within a clean air enclosure. An indexer in the indexer bay provides stocking or storage for work in progress semiconductor wafers. Process chambers are located in the process bay: A process robot moves between the indexer bay and process bay to carry semi-conductor wafers to and from the process chambers. The process robot has a robot arm vertically moveable along a lift rail. Semiconductor wafers are carried offset from the robot arm, to better avoid contamination. The automated system is compact and requires less clean room floor space.Type: ApplicationFiled: June 5, 2002Publication date: October 17, 2002Applicant: Semitool, Inc.Inventors: Gordon Ray Nelson, Daniel P. Bexten, Jeffry A. Davis
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Patent number: 6454514Abstract: A workpiece support and an apparatus including such a workpiece support are set forth. The workpiece support includes a set of grooved members for supporting a series of workpieces. The workpieces may be similarly shaped, e.g. circular or rectangular, and similarly sized, each having a front face and a back face. An outer perimeter of each workpiece may be beveled at both faces, beveled at one face, unbeveled, convex, or concave. Each grooved member has a series of similar grooves. Being adapted to receive such a workpiece, each groove has a bearing wall and a wedging wall shaped and oriented so that a line normal to the wedging wall intersects but is not normal to the bearing wall. For many applications, two grooved members are employed, which are parallel to one another, spaced from one another, and oriented so that the grooves of the grooved members are generally aligned.Type: GrantFiled: August 11, 1999Date of Patent: September 24, 2002Assignee: Semitool, Inc.Inventor: Jeffry A. Davis