Patents by Inventor Paul M. Johnson

Paul M. Johnson 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: 20100320384
    Abstract: A method that may be applied to imaging and identifying defects and contamination on the surface of an integrated circuit is described. An energetic beam, such as an electron beam, may be directed at a selected IC location having a layer of a solid, fluid, or gaseous reactive material formed over the surface. The energetic beam disassociates the reactive material in the region into chemical radicals that either chemically etch the surface preferentially, or deposit a thin layer of a conductive material over the local area around the energetic beam. The surface may be examined as various layers are selectively etched to decorate defects and/or as various layers are locally deposited in the area around the energetic beam. SEM imaging and other analytic methods may be used to identify the problem more easily.
    Type: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Inventors: Mark J. Williamson, Paul M. Johnson, Shawn D. Lyonsmith, Gurtel S. Sandhu, Justin R. Arrington
  • Patent number: 7791055
    Abstract: A method of imaging and identifying defects and contamination on the surface of an integrated circuit is described. The method may be used on areas smaller than one micron in diameter. An energetic beam, such as an electron beam, is directed at a selected IC location having a layer of a solid, fluid or gaseous reactive material formed over the surface. The energetic beam disassociates the reactive material in the region into chemical radicals that either chemically etch the surface preferentially, or deposit a thin layer of a conductive material over the local area around the energetic beam. The surface may be examined as various layers are selectively etched to decorate defects and/or as various layers are locally deposited in the area around the energetic beam. SEM imaging and other analytic methods may be used to identify the problem more easily.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: September 7, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Mark J. Williamson, Paul M. Johnson, Shawn D. Lyonsmith, Gurtej S. Sandhu, Justin R. Arrington
  • Publication number: 20080006786
    Abstract: A method of imaging and identifying defects and contamination on the surface of an integrated circuit is described. The method may be used on areas smaller than one micron in diameter. An energetic beam, such as an electron beam, is directed at a selected IC location having a layer of a solid, fluid or gaseous reactive material formed over the surface. The energetic beam disassociates the reactive material in the region into chemical radicals that either chemically etch the surface preferentially, or deposit a thin layer of a conductive material over the local area around the energetic beam. The surface may be examined as various layers are selectively etched to decorate defects and/or as various layers are locally deposited in the area around the energetic beam. SEM imaging and other analytic methods may be used to identify the problem more easily.
    Type: Application
    Filed: July 10, 2006
    Publication date: January 10, 2008
    Inventors: Mark J. Williamson, Paul M. Johnson, Shawn D. Lyonsmith, Gurtej S. Sandhu, Justin R. Arrington
  • Patent number: D283395
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: April 15, 1986
    Assignee: Swish Products Limited
    Inventors: Terence A. Cox, Paul M. Johnson, Philip C. Horton
  • Patent number: D283788
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: May 13, 1986
    Assignee: Swish Products Limited
    Inventors: Terence A. Cox, Paul M. Johnson, Philip C. Horton
  • Patent number: D284448
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: July 1, 1986
    Assignee: Swish Products Limited
    Inventors: Terence A. Cox, Paul M. Johnson, Philip C. Horton