Patents by Inventor Chris Gage

Chris Gage 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: 8920162
    Abstract: Methods and apparatuses that decouple wafer temperature from pre-heat station residence time, thereby improving wafer-to-wafer temperature uniformity, are provided. The methods involve maintaining a desired temperature by varying the distance between the wafer and a heater. In certain embodiments, the methods involve rapidly approaching a predetermined initial distance and then obtaining and maintaining a desired final temperature using closed loop temperature control. In certain embodiments, a heated pedestal supplies the heat. The wafer-pedestal gap may be modulated may be varied by moving the heated pedestal and/or moving the wafer, e.g., via a movable wafer support. Also in certain embodiments, the closed loop control system includes a real time wafer temperature sensor and a servo controlled linear motor for moving the pedestal or wafer support.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 30, 2014
    Assignee: Novellus Systems, Inc.
    Inventors: Michael Nordin, Chris Gage, Shawn Hamilton, Sheldon Templeton
  • Patent number: 8491248
    Abstract: Provided are apparatuses and methods disclosed for wafer processing. Specific embodiments include dual wafer handling systems that transfer wafers from storage cassettes to processing modules and back and aspects thereof. Stacked independent loadlocks that allow venting and pumping operations to work in parallel and may be optimized for particle reduction are provided. Also provided are annular designs for radial top down flow during loadlock vent and pumpdown.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: July 23, 2013
    Assignee: Novellus Systems, Inc.
    Inventors: Chris Gage, Shawn Hamilton, Sheldon Templeton, Keith Wood, Damon Genetti
  • Patent number: 8489237
    Abstract: Methods correcting wafer position error are provided. The methods involve measuring wafer position error on a robot during transfer to an intermediate station. This measurement data is then used by a second robot to perform wafer pick moves from the intermediate station with corrections to center the wafer. Wafer position correction may be performed at only one location during the transfer process. Also provided are systems and apparatuses for transferring wafers using an intermediate station.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 16, 2013
    Assignee: Novellus Systems, Inc.
    Inventors: Chris Gage, Damon Genetti
  • Publication number: 20120014773
    Abstract: Methods correcting wafer position error are provided. The methods involve measuring wafer position error on a robot, e.g. a dual side-by-side end effector robot, during transfer to an intermediate station. This measurement data is then used by a second robot to perform wafer pick moves from the intermediate station with corrections to center the wafer. Wafer position correction may be performed at only one location during the transfer process. Also provided are systems and apparatuses for transferring wafers using an intermediate station.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Inventors: Chris Gage, Damon Genetti
  • Publication number: 20120003063
    Abstract: Provided are apparatuses and methods disclosed for wafer processing. Specific embodiments include dual wafer handling systems that transfer wafers from storage cassettes to processing modules and back and aspects thereof. Stacked independent loadlocks that allow venting and pumping operations to work in parallel and may be optimized for particle reduction are provided. Also provided are annular designs for radial top down flow during loadlock vent and pumpdown.
    Type: Application
    Filed: September 9, 2011
    Publication date: January 5, 2012
    Inventors: Chris Gage, Shawn Hamilton, Sheldon Templeton, Keith Wood, Damon Genetti
  • Patent number: 8060252
    Abstract: Methods correcting wafer position error are provided. The methods involve measuring wafer position error on a robot, e.g. a dual side-by-side end effector robot, during transfer to an intermediate station. This measurement data is then used by a second robot to perform wafer pick moves from the intermediate station with corrections to center the wafer. Wafer position correction may be performed at only one location during the transfer process. Also provided are systems and apparatuses for transferring wafers using an intermediate station.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: November 15, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Chris Gage, Damon Genetti
  • Patent number: 8052419
    Abstract: Methods and apparatuses that decouple wafer temperature from pre-heat station residence time, thereby improving wafer-to-wafer temperature uniformity, are provided. The methods involve maintaining a desired temperature by varying the distance between the wafer and a heater. In certain embodiments, the methods involve rapidly approaching a predetermined initial distance and then obtaining and maintaining a desired final temperature using closed loop temperature control. In certain embodiments, a heated pedestal supplies the heat. The wafer-pedestal gap may be modulated may be varied by moving the heated pedestal and/or moving the wafer, e.g., via a movable wafer support. Also in certain embodiments, the closed loop control system includes a real time wafer temperature sensor and a servo controlled linear motor for moving the pedestal or wafer support.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: November 8, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Michael Nordin, Chris Gage, Shawn Hamilton, Sheldon Templeton
  • Patent number: 8033769
    Abstract: Provided are apparatuses and methods disclosed for wafer processing. Specific embodiments include dual wafer handling systems that transfer wafers from storage cassettes to processing modules and back and aspects thereof. Stacked independent loadlocks that allow venting and pumping operations to work in parallel and may be optimized for particle reduction are provided. Also provided are annular designs for radial top down flow during loadlock vent and pumpdown.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: October 11, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Chris Gage, Shawn Hamilton, Sheldon Templeton, Keith Wood, Damon Genetti
  • Publication number: 20090142167
    Abstract: Provided are apparatuses and methods disclosed for wafer processing. Specific embodiments include dual wafer handling systems that transfer wafers from storage cassettes to processing modules and back and aspects thereof. Stacked independent loadlocks that allow venting and pumping operations to work in parallel and may be optimized for particle reduction are provided. Also provided are annular designs for radial top down flow during loadlock vent and pumpdown.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventors: Chris Gage, Shawn Hamilton, Sheldon Templeton, Keith Wood, Damon Genetti
  • Publication number: 20090143911
    Abstract: Methods correcting wafer position error are provided. The methods involve measuring wafer position error on a robot, e.g. a dual side-by-side end effector robot, during transfer to an intermediate station. This measurement data is then used by a second robot to perform wafer pick moves from the intermediate station with corrections to center the wafer. Wafer position correction may be performed at only one location during the transfer process. Also provided are systems and apparatuses for transferring wafers using an intermediate station.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Inventors: Chris Gage, Damon Genetti