Patents by Inventor Grant W. McEwan

Grant W. McEwan 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: 7205235
    Abstract: A semiconductor process exposes metal in anticipation of an additional processing step that includes a deposition of a layer. Between the two processing steps, the exposed metal is exposed to ambient conditions that may include humidity. The effect of the humidity is potentially to cause corrosion of the exposed metal causing a yield loss. In order to withstand the various time periods that may occur between processing steps, an inhibitor is applied to the exposed surface causing the formation of a very thin protective layer on the exposed metal, which greatly inhibits corrosion. This thin protective layer does not cause any problems with the subsequent step because the typical following steps all, by their very nature, remove the protective layer. Thus, the time period between the processing step that exposes the metal and the next step is no longer critical due to the protective layer.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: April 17, 2007
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Grant W. McEwan, Scott C. Bolton, Barry T. Haygood
  • Patent number: 6786222
    Abstract: A method for removing particles from a semiconductor processing tool is provided. The method comprises providing a pick-up wafer for picking up particles from a semiconductor processing tool, inserting said pick-up wafer into said semiconductor processing tool and placing the pick-up wafer on a receiving member, applying an electrostatic charge to said pick-up wafer, leaving said pick-up wafer in said semiconductor processing tool for a predetermined dwell time; and removing said pick-up wafer from said semiconductor processing tool. Further, a method for processing semiconductor wafers is provided.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: September 7, 2004
    Assignee: Motorola, Inc.
    Inventors: Larry E. Frisa, Scott S. Kellogg, Grant W. McEwan, Michael N. Montgomery, Iraj Eric Shahvandi
  • Publication number: 20040079385
    Abstract: A method for removing particles from a semiconductor processing tool is provided. The method comprises providing a pick-up wafer for picking up particles from a semiconductor processing tool, inserting said pick-up wafer into said semiconductor processing tool and placing the pick-up wafer on a receiving member, applying an electrostatic charge to said pick-up wafer, leaving said pick-up wafer in said semiconductor processing tool for a predetermined dwell time; and removing said pick-up wafer from said semiconductor processing tool. Further, a method for processing semiconductor wafers is provided.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 29, 2004
    Inventors: Larry E. Frisa, Scott S. Kellogg, Grant W. McEwan, Michael N. Montgomery, Iraj Eric Shahvandi