Patents Assigned to ASM-Nutool Inc.
  • Patent number: 6837979
    Abstract: The present invention provides a method and apparatus for plating a conductive material to a substrate and also modifying the physical properties of a conductive film while the substrate is being plated. The present invention further provides a method and apparatus that plates a conductive material on a workpiece surface in a “proximity” plating manner while a pad type material or other fixed feature is making contact with the workpiece surface in a “cold worked” manner. In this manner, energy stored in the cold worked regions of the plated layer is used to accelerate and enhance micro-structural recovery and growth. Thus, large grain size is obtained in the plated material at a lower annealing temperature and a shorter annealing time.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: January 4, 2005
    Assignee: ASM-Nutool Inc.
    Inventors: Cyprian Emeka Uzoh, Homayoun Talieh