Patents by Inventor Alexander S. McKinnon

Alexander S. McKinnon 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).

  • X-ray inspection apparatus for electronic circuits
    Patent number: 5388136
    Abstract: An X-ray computerized system for programmable, high-resolution X-ray inspection of manufactured electronic circuits. Such a system comprises: means for directing X-rays to produce X-ray images representing illuminations of circuit elements from different angles; and detecting means for detecting said images, said detecting means comprising a plurality of detectors, each of said detectors positioned to intercept X-rays after passing through a circuit element from a particular associated angle of illumination.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: February 7, 1995
    Assignee: International Business Machines Corporation
    Inventors: David K. Halliday, Colin D. McCall, Alexander S. McKinnon, Christopher D. Smith