Patents by Inventor Leon Ray Bentson

Leon Ray Bentson 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: 5959459
    Abstract: According to the preferred embodiment, a defect monitor is provided that facilitates the location and characterization of defects in a semiconductor device. The defect monitors are designed to facilitate automated scanning electron microscope in voltage contrast mode (SEM-VC) inspection. The defect monitors include a plurality of flags used to quickly locate defects. The SEM-VC magnification can then be increased to further isolate and characterize the defects as necessary. Thus, the preferred embodiment facilitates the use of SEM-VC scanning procedures to automatically detect and locate faults at low magnification, and then characterize the faults a higher magnification, resulting in a much higher throughput.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: September 28, 1999
    Assignee: International Business Machines Corporation
    Inventors: Akella Venkata Surya Satya, Tessema Kebede, Leon Ray Bentson