Patents Examined by Matthew C. Bolla
  • Automated defect classification system
    Patent number: 5544256
    Abstract: An integrated visual defect detection and classification system. The invention includes adaptive defect detection and image labeling, defect feature measures, and a knowledge based inference shell/engine for classification based on fuzzy logic. The combination of these elements comprises a method and system for providing detection and analysis of product defects in many application domains, such as semiconductor and electronic packaging manufacturing.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: August 6, 1996
    Assignee: International Business Machines Corporation
    Inventors: Virginia H. Brecher, Paul B.-L, Chou, Robert W. Hall, Debra M. Parisi, Ravishankar Rao, Stuart L. Riley, Martin C. Sturzenbecker