Patents Represented by Attorney, Agent or Law Firm Copely Rose P.C.
  • Patent number: 6694284
    Abstract: Methods and systems for monitoring semiconductor fabrication processes are provided. A system may include a stage configured to support a specimen and coupled to a measurement device. The measurement device may include an illumination system and a detection system. The illumination system and the detection system may be configured such that the system may be configured to determine multiple properties of the specimen. For example, the system may be configured to determine multiple properties of a specimen including, but not limited to, at least four properties of a specimen such as critical dimension, overlay, a presence of macro defects, and thin film characteristics. In this manner, a measurement device may perform multiple optical and/or non-optical metrology and/or inspection techniques.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: February 17, 2004
    Assignee: KLA-Tencor Technologies Corp.
    Inventors: Mehrdad Nikoonahad, Ady Levy, Kyle A. Brown, Gary Bultman, Dan Wack, John Fielden