Invention Grant
US08112241B2 Methods and systems for generating an inspection process for a wafer 有权
用于产生晶片检查过程的方法和系统

  • Patent Title: Methods and systems for generating an inspection process for a wafer
  • Patent Title (中): 用于产生晶片检查过程的方法和系统
  • Application No.: US12403905
    Application Date: 2009-03-13
  • Publication No.: US08112241B2
    Publication Date: 2012-02-07
  • Inventor: Yan Xiong
  • Applicant: Yan Xiong
  • Applicant Address: US CA San Jose
  • Assignee: KLA-Tencor Corp.
  • Current Assignee: KLA-Tencor Corp.
  • Current Assignee Address: US CA San Jose
  • Agent Ann Marie Mewherter
  • Main IPC: G01R27/28
  • IPC: G01R27/28 G06K9/00
Methods and systems for generating an inspection process for a wafer
Abstract:
Methods and systems for generating an inspection process for a wafer are provided. One computer-implemented method includes separately determining a value of a local attribute for different locations within a design for a wafer based on a defect that can cause at least one type of fault mechanism at the different locations. The method also includes determining a sensitivity with which defects will be reported for different locations on the wafer corresponding to the different locations within the design based on the value of the local attribute. In addition, the method includes generating an inspection process for the wafer based on the determined sensitivity. Groups may be generated based on the value of the local attribute thereby assigning pixels that will have at least similar noise statistics to the same group, which can be important for defect detection algorithms. Better segmentation may lead to better noise statistics estimation.
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