Patents by Inventor Jeffry Alan Davis

Jeffry Alan 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: 7541299
    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: Grant
    Filed: November 10, 2006
    Date of Patent: June 2, 2009
    Assignee: Semitool, Inc.
    Inventors: Paul Zachary Wirth, Jeffry Alan Davis
  • Patent number: 7520286
    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: Grant
    Filed: December 5, 2005
    Date of Patent: April 21, 2009
    Assignee: Semitool, Inc.
    Inventors: Jeffry Alan Davis, Randy A. Harris
  • Patent number: 7371306
    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: Grant
    Filed: June 3, 2004
    Date of Patent: May 13, 2008
    Assignee: Semitool, Inc.
    Inventors: Jeffry Alan Davis, Randy A. Harris
  • Patent number: 7198694
    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: Grant
    Filed: June 3, 2004
    Date of Patent: April 3, 2007
    Assignee: Semitool, Inc.
    Inventors: Daniel J. Woodruff, Jeffry Alan Davis, Randy A. Harris, David P. Mattson, James J. Erickson, Matthew C. Egloff
  • Patent number: 7144813
    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: Grant
    Filed: November 12, 2004
    Date of Patent: December 5, 2006
    Assignee: Semitool, Inc.
    Inventors: Paul Zachary Wirth, Jeffry Alan Davis
  • Patent number: 6866460
    Abstract: An apparatus for loading media carriers into a processing chamber, including a pivoting arm mechanism which accepts a carrier in at a lower position, locks it on the arm, and provides a power-assisted movement of the carrier lifting it into an upper position proximate the opening to the processing chamber, where the arm is locked in place, with the carrier then pushed along a ramp on the arm directly into the processing chamber.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: March 15, 2005
    Assignee: Semitool, Inc.
    Inventors: Jeffry Alan Davis, Andro Ardiano Purnomohadi, Daniel Thomas Potter
  • Publication number: 20030012623
    Abstract: An apparatus for loading media carriers into a processing chamber, including a pivoting arm mechanism which accepts a carrier in at a lower position, locks it on the arm, and provides a power-assisted movement of the carrier lifting it into an upper position proximate the opening to the processing chamber, where the arm is locked in place, with the carrier then pushed along a ramp on the arm directly into the processing chamber.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 16, 2003
    Applicant: Semitool, Inc.
    Inventors: Jeffry Alan Davis, Andro Ardiano Purnomohadi, Daniel Thomas Potter