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).

  • Patent number: 8028978
    Abstract: 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: Grant
    Filed: March 25, 2003
    Date of Patent: October 4, 2011
    Assignee: Semitool, Inc.
    Inventors: Gordon R. Nelson, Jeffry A. Davis, Raymon F. Thompson, Eric J. Bergman
  • Patent number: 7278813
    Abstract: 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: Grant
    Filed: December 30, 2002
    Date of Patent: October 9, 2007
    Assignee: Semitool, Inc.
    Inventors: Jeffry A. Davis, Gordon Ray Nelson, Daniel P. Bexten
  • Publication number: 20070125404
    Abstract: The invention provides an apparatus for cleaning and drying a container for semiconductor workpieces. The apparatus comprises a load port with a fixture that receives a dirty container and delivers it to a deck assembly with a carrier that removably receives the container for further handling. While the container is received by the carrier, a robot with a first end effector removes the container door and places it on a portion of the carrier. The robot includes a second end effector that engages the carrier and elevates the carrier and container for insertion into a process chamber. The process chamber includes a rotor with at least one receptacle wherein the rotor is rotated to create both high pressure and low pressure regions. Once the container and carrier are loaded into the rotor, the rotor is rotated and means for cleaning injects a processing fluid onto the container and carrier. After a rinse stage and while the rotor is rotating, the means for drying delivers air across the container and carrier.
    Type: Application
    Filed: December 5, 2005
    Publication date: June 7, 2007
    Inventors: Jeffry Davis, Randy Harris
  • Publication number: 20070084832
    Abstract: An apparatus for thermally processing a microelectronic workpiece comprises a rotatable carousel assembly configured to support at least one workpiece. A driver is coupled to the carousel assembly and rotates the carousel assembly, moving the workpiece between a loading station, a heating station and a cooling station. The loading, heating and cooling stations are radially positioned about a center axis of the carousel assembly. The heating station includes a heating element and an actuator for moving the heating element into thermal engagement with the workpiece in the heating station. The cooling station includes a cooling element and an actuator for moving the cooling element into thermal engagement with the workpiece in the cooling station. A process fluid distribution manifold for delivering process fluid to the workpieces at each station extends through a central opening in the carousel assembly.
    Type: Application
    Filed: November 10, 2006
    Publication date: April 19, 2007
    Inventors: Paul Wirth, Jeffry Davis
  • Publication number: 20070057352
    Abstract: An apparatus for thermally processing a microelectronic workpiece is provided. The apparatus comprises a rotatable carousel assembly configured to support at least one workpiece. A driver is coupled to the carousel assembly and rotates the carousel assembly, moving the workpiece between a loading station, a heating station and a cooling station. The loading, heating and cooling stations are radially positioned and approximately equally spaced about a center axis of the carousel assembly. The heating station includes a heating element and an actuator for moving the heating element into thermal engagement with the workpiece in the heating station. The cooling station includes a cooling element and an actuator for moving the cooling element into thermal engagement with the workpiece in the cooling station. A process fluid distribution manifold for delivering process fluid to the workpieces at each station extends through a central opening in the carousel assembly.
    Type: Application
    Filed: November 1, 2006
    Publication date: March 15, 2007
    Inventors: Paul Wirth, Jeffry Davis
  • Patent number: 7067018
    Abstract: 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: Grant
    Filed: July 19, 2002
    Date of Patent: June 27, 2006
    Assignee: Semitool, Inc.
    Inventor: Jeffry Davis
  • Patent number: 7060138
    Abstract: 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: Grant
    Filed: August 12, 2004
    Date of Patent: June 13, 2006
    Assignee: Semitool, Inc.
    Inventors: Kert Dolechek, Jeffry Davis
  • Publication number: 20060105580
    Abstract: An apparatus for thermally processing a microelectronic workpiece is provided. The apparatus comprises a rotatable carousel assembly configured to support at least one workpiece. A driver is coupled to the carousel assembly and rotates the carousel assembly, moving the workpiece between a loading station, a heating station and a cooling station. The loading, heating and cooling stations are radially positioned and approximately equally spaced about a center axis of the carousel assembly. The heating station includes a heating element and an actuator for moving the heating element into thermal engagement with the workpiece in the heating station. The cooling station includes a cooling element and an actuator for moving the cooling element into thermal engagement with the workpiece in the cooling station. A process fluid distribution manifold for delivering process fluid to the workpieces at each station extends through a central opening in the carousel assembly.
    Type: Application
    Filed: November 12, 2004
    Publication date: May 18, 2006
    Inventors: Paul Wirth, Jeffry Davis
  • Publication number: 20060009047
    Abstract: A modular apparatus for thermally processing a microelectronic workpiece is provided. The modular apparatus comprises a mounting module having a rotatable carousel assembly configured to support at least one workpiece. A driver is coupled to the carousel assembly and rotates the carousel assembly, moving the workpiece between a loading station, a heating station and a cooling station. The thermal processing modular apparatus has a front docking unit for removeably connecting it to a load/unload module and a rear docking unit for removeably connecting it to a wet chemical processing tool, or another tool for otherwise processing a workpiece. A transport system (i.e., robot) services the modular tool units that can be automatically calibrated to work with individual processing components of the tool units.
    Type: Application
    Filed: February 11, 2005
    Publication date: January 12, 2006
    Inventors: Paul Wirth, Jeffry Davis, Randy Harris
  • Patent number: 6942738
    Abstract: 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: Grant
    Filed: July 7, 2000
    Date of Patent: September 13, 2005
    Assignee: Semitool, Inc.
    Inventors: Gordon Ray Nelson, Daniel P. Bexten, Jeffry A. Davis
  • Patent number: 6900132
    Abstract: A system for processing semiconductor wafers has process units on a deck of a frame. The process units and the deck have precision locating features, such as tapered pins, for precisely positioning the process units on the deck. Process units can be removed and replacement process units installed on the deck, without the need for recalibrating the load/unload robot. This reduces the time needed to replace process units and restart processing operations. Liquid chemical consumption during processing is reduced by drawing unused liquid out of supply lines and pumping it back to storage.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: May 31, 2005
    Assignee: Semitool, Inc.
    Inventors: Raymon F. Thompson, Jeffry A. Davis, Randy Harris, Dana R. Scranton, Ryan Pfeifle, Steven A. Peace, Brian Aegerter
  • Patent number: 6895981
    Abstract: 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: Grant
    Filed: July 19, 2002
    Date of Patent: May 24, 2005
    Assignee: Semitool, Inc.
    Inventors: Kert Dolechek, Jeffry Davis
  • Publication number: 20050063798
    Abstract: Interchangeable workpiece handling apparatuses and associated tools for processing microfeature workpieces are disclosed. In one embodiment, an apparatus includes a device support having a first alignment surface at an alignment plane. A processing chamber is received in an aperture at the alignment plane. A workpiece handling device is positioned proximate to the processing chamber and includes a workpiece support, a drive unit operatively coupled to the workpiece support to move the workpiece support along a generally linear motion axis, and a mounting portion coupled to the workpiece support and having a second alignment surface removably mated with the first alignment surface. In a particular embodiment, the workpiece handling device is supported relative to the device support only at or above the alignment plane. Accordingly, the workpiece handling device can be easily removed from the device support and need not impede access to components beneath the alignment plane.
    Type: Application
    Filed: June 3, 2004
    Publication date: March 24, 2005
    Inventors: Jeffry Davis, Randy Harris
  • Publication number: 20050061438
    Abstract: An integrated tool that enables wet chemical processing chambers, lift-rotate units and other hardware to be quickly interchanged without having to recalibrate the transport system or other components to the replacement items. These tools are expected to reduce the down time associated with repairing or maintaining processing chambers and/or lift-rotate units so that the tools can maintain a high throughput. Several aspects of these tools are particularly useful for applications that have stringent performance requirements because components are more likely to require maintenance more frequently, and reducing the down time associated with maintaining such components will significantly enhance the integrated tool.
    Type: Application
    Filed: June 3, 2004
    Publication date: March 24, 2005
    Inventors: Jeffry Davis, Randy Harris
  • Publication number: 20050050767
    Abstract: A wet chemical processing chamber comprising a fixed unit, a detachable unit releasably coupled to the fixed unit, a seal contacting the fixed unit and the detachable unit, and a processing component disposed in the fixed unit and/or the detachable unit. The fixed unit can have a first flow system configured to direct a processing fluid through the fixed unit and a mounting fixture for fixedly attaching the fixed unit to a platform or deck of an integrated processing tool. The detachable unit can include a second flow system configured to direct the processing fluid to and/or from the first flow system of the fixed unit. The seal has an orifice through which processing fluid can flow between the first and second flow systems, and the processing component can impart a property to the processing fluid for processing a surface on a microfeature workpiece having submicron microfeatures.
    Type: Application
    Filed: June 3, 2004
    Publication date: March 10, 2005
    Inventors: Kyle Hanson, Kert Dolechek, Paul McHugh, Gregory Wilson, Jeffry Davis, Randy Harris
  • Publication number: 20050034809
    Abstract: An integrated tool and automatic calibration systems that enable wet chemical processing chambers, lift-rotate units and other hardware to be quickly interchanged without having to recalibrate the transport system or other components to the replacement items. These tools are expected to reduce the down time associated with repairing or maintaining processing chambers and/or lift-rotate units so that the tools can maintain a high throughput. Several aspects of these tools are particularly useful for applications that have stringent performance requirements because components are more likely to require maintenance more frequently, and reducing the down time associated with maintaining such components will significantly enhance the integrated tool.
    Type: Application
    Filed: June 3, 2004
    Publication date: February 17, 2005
    Inventors: Daniel Woodruff, Jeffry Davis, Randy Harris, David Mattson, James Erickson, Matthew Egloff
  • Publication number: 20050011540
    Abstract: 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: Application
    Filed: August 12, 2004
    Publication date: January 20, 2005
    Inventors: Kert Dolechek, Jeffry Davis
  • Patent number: 6830057
    Abstract: 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: Grant
    Filed: November 1, 2002
    Date of Patent: December 14, 2004
    Assignee: Semitool, Inc.
    Inventors: Kert Dolechek, Jeffry Davis
  • Patent number: 6799932
    Abstract: 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: Grant
    Filed: June 9, 2003
    Date of Patent: October 5, 2004
    Assignee: Semitool, Inc.
    Inventors: Jeffry A. Davis, Kert L. Dolechek, Gary L. Curtis
  • Publication number: 20040112738
    Abstract: A system for processing semiconductor wafers has process units on a deck of a frame. The process units and the deck have precision locating features, such as tapered pins, for precisely positioning the process units on the deck. Process units can be removed and replacement process units installed on the deck, without the need for recalibrating the load/unload robot. This reduces the time needed to replace process units and restart processing operations. Liquid chemical consumption during processing is reduced by drawing unused liquid out of supply lines and pumping it back to storage.
    Type: Application
    Filed: October 22, 2003
    Publication date: June 17, 2004
    Inventors: Raymon F. Thompson, Jeffry A. Davis, Randy Harris, Dana R. Scranton, Ryan Pfeifle, Steven L. Peace, Brian Aegerter