Patents by Inventor Patrick R. Ward

Patrick R. Ward 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).

  • Publication number: 20080202924
    Abstract: An arrangement for concurrently powering a plurality of sputtering sources. A power supply is coupled to a charge accumulator. The charge accumulator is coupled to several sputtering sources via switching devices. The duty cycle of each switching device is used to individually control the power delivered to each sputtering source. In another arrangement, a power source is coupled to an impedance match circuit. The impedance match circuit is coupled to several sputtering sources via several balance elements. Each balance element is operated to individually control the power delivered to the sputtering source.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 28, 2008
    Inventors: Terry Bluck, Patrick R. Ward, Michael S. Barnes
  • Publication number: 20080197015
    Abstract: A sputtering source has a magnetron and a target. Control magnets are provided about the target to modify the magnetic lines of the magnetron. A sputtering source has several magnetrons, each having a respective target. A plasma/sputtering shield is provided in front of the targets. The shield has several windows, each aligned with one of the targets. Magnets are provided on the shield to control the magnetic lines of the magnetrons.
    Type: Application
    Filed: December 17, 2007
    Publication date: August 21, 2008
    Inventors: TERRY BLUCK, Patrick R. Ward