Patents by Inventor Evan Craves

Evan Craves 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).

  • System and method for feedforward control in thin film coating processes
    Patent number: 7232506
    Abstract: A system and method for feedforward control in thin film coating processes. A standard PID feedback control system that continuously monitors two or more process variables in a reactive sputtering process is combined with a feedforward control system to improve system performance. The control system enables much faster stabilization of the reactive sputtering process during target start-up, and improves control of the process once a steady-state operating condition has been reached following target start-up.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: June 19, 2007
    Assignee: Deposition Sciences, Inc.
    Inventors: Mark George, Evan Craves
  • System and method for feedforward control in thin film coating processes
    Publication number: 20050115502
    Abstract: A system and method for feedforward control in thin film coating processes. A standard PID feedback control system that continuously monitors two or more process variables in a reactive sputtering process is combined with a feedforward control system to improve system performance. The control system enables much faster stabilization of the reactive sputtering process during target start-up, and improves control of the process once a steady-state operating condition has been reached following target start-up.
    Type: Application
    Filed: October 8, 2004
    Publication date: June 2, 2005
    Inventors: Mark George, Evan Craves