Patents by Inventor William H. Vonderhaar

William H. Vonderhaar 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).

  • Optical system for rapid inspection of via location
    Patent number: 5288991
    Abstract: An inspection system in which the surface of a substrate is continuously scanned by a linear CCD. The surface is illuminated in a narrowly focused strip from a broad-band light source that is selectively wavelength filtered to optimize image contrast to the optical characteristics of the surface under inspection. A channel integrator in the light source optical system provides illumination homogeneity at the surface of the substrate.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: February 22, 1994
    Assignee: International Business Machines Corporation
    Inventors: Mark R. King, William H. Vonderhaar