Patents by Inventor Kent E. Douglas

Kent E. Douglas 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: 20080304734
    Abstract: A method and apparatus, and variations of each, for inspecting a wafer defining at least one die thereon is disclosed. The present invention first obtains the electronic image equivalent of two die, and then determines the x and y offset between those electronic images. Prior to inspection for defects, those two electronic images are aligned by adjusting the x and y positions of one electronic image of one die with respect to the electronic image of the other die. Once that is accomplished, the those electronic images are compared to detect any defects that may exist on one of the die.
    Type: Application
    Filed: August 7, 2008
    Publication date: December 11, 2008
    Inventors: Scott A. Young, Roger Kroeze, Curt H. Chadwick, Nicholas Szabo, Kent E. Douglas, Fred E. Babian
  • Publication number: 20030063190
    Abstract: A method and apparatus, and variations of each, for inspecting a wafer defining at least one die thereon is disclosed. The present invention first obtains the electronic image equivalent of two die, and then determines the x and y offset between those electronic images. Prior to inspection for defects, those two electronic images are aligned by adjusting the x and y positions of one electronic image of one die with respect to the electronic image of the other die. Once that is accomplished, the those electronic images are compared to detect any defects that may exist on one of the die.
    Type: Application
    Filed: December 9, 2002
    Publication date: April 3, 2003
    Applicant: KLA INSTRUMENTS CORPORATION
    Inventors: Scott A. Young, Roger Kroeze, Curt H. Chadwick, Nicholas Szabo, Kent E. Douglas, Fred E. Babian
  • Publication number: 20020075385
    Abstract: A method and apparatus, and variations of each, for inspecting a wafer defining at least one die thereon is disclosed. The present invention first obtains the electronic image equivalent of two die, and then determines the x and y offset between those electronic images. Prior to inspection for defects, those two electronic images are aligned by adjusting the x and y positions of one electronic image of one die with respect to the electronic image of the other die. Once that is accomplished, the those electronic images are compared to detect any defects that may exist on one of the die.
    Type: Application
    Filed: January 31, 2002
    Publication date: June 20, 2002
    Applicant: KLA INSTRUMENTS CORPORATION
    Inventors: Scott A. Young, Roger Kroeze, Curt H. Chadwick, Nicholas Szabo, Kent E. Douglas, Fred E. Babian
  • Patent number: 6141038
    Abstract: A method and apparatus, and variations of each, for inspecting a wafer defining at least one die thereon is disclosed. The present invention first obtains the electronic image equivalent of two die, and then determines the x and y offset between those electronic images. Prior to inspection for defects, those two electronic images are aligned by adjusting the x and y positions of one electronic image of one die with respect to the electronic image of the other die. Once that is accomplished, those electronic images are compared to detect any defects that may exist on one of the die.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: October 31, 2000
    Assignee: KLA Instruments Corporation
    Inventors: Scott A. Young, Roger Kroeze, Curt H. Chadwick, Nicholas Szabo, Kent E. Douglas, Fred E. Babian
  • Patent number: 4223434
    Abstract: A method for manufacturing flexible Nb.sub.3 (Al,Ge) multifilamentary superconductive material in which a sintered porous niobium compact is infiltrated with an aluminum-germanium alloy and thereafter deformed and heat treated in a series of steps at different successively higher temperatures preferably below 1000.degree. C. to produce filaments composed of Nb.sub.3 (Al,G3) within the compact. By avoiding temperatures in excess of 1000.degree. C. during the heat treatment, cladding material such as copper can be applied to facilitate a deformation step preceding the heat treatment and can remain in place through the heat treatment to also serve as a temperature stabilizer for supeconductive material produced. Further, these lower heat treatment temperatures favor formation of filaments with reduced grain size and, hence with more grain boundaries which in turn increase the current-carrying capacity of the superconductive material.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: September 23, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John L. Wang, Milton R. Pickus, Kent E. Douglas