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        MueTec has a long-standing experience in providing customized soft- and hardware solutions for in-situ defect identification on regular or irregular structures, employing advanced pattern recognition, object analysis, object modeling, and object filtering algorithms. On request, customized programming solutions allow for a cost-effective implementation of almost any substrate analysis.


        √  MueTec tools are expandable for Defect Inspection purposes

        √  Mostly it is only a question of software extension

        √  Leading to reasonably Cost of Ownership

        Automated defect inspection is usually based on the so called “golden image principle”: images of various substrates are compared to a pre-produced template image, ”the golden image” to identify defects for subsequent analysis and classification. MueTec offers a wide range of software tools exploiting this principle for semi-automated as well as fully automated defect inspection. Many industrial applications however do not allow for the “golden image” approach due to throughput constraints or, more often, due to the high variability in the substrate design and substrate processing.

        The MueTec proprietary Smart Defect Inspection (SDI) algorithm is no longer dependent on wafer-to-wafer process variations because the “golden image” calculation for each wafer is performed as soon as enough dies have been analyzed.


        Defect scanning (or substrate scanning) describes an operation that completely images a selected area of a substrate or the complete substrate as a set of sub images. The scanning stage moves continuously either in the y- or x-direction and all CCD images are stored for defect evaluation. Stage speed and camera shot frequency are synchronized to guarantee that all areas of interest are covered. Cluster PCs process the images on-the-fly and handle a multitude of desired data evaluations. Freely adjustable filters defining e.g. defect size, defect area, defect morphology, location of the defect within the die or substrate ensure the flexibility of defect classification (defect type, defect severity) on any substrate.

        MueTec supports die-to-die inspection with unlimited die size and even covers complete wafer comparison.

        • Spector-A
          Fully automated mask metrology and inspection system

          Typical Applications


          Defect Inspection


          Mask sizes up to 8“ by 8“

          Robot handling


          VIS, UV

          Also available as semi-automated system with manual mask loading (Spector-M)

        • Argos 300
          200mm/300mm Wafer Macro Defect Inspection
          Argos 300

          Key Features

          300 mm FOUP based handling

          Data acquisition perfectly balanced to mechanical movements

          Simultaneous bright- and darkfield front and backside inspection

          Modular design with 1 – 3 process chambers, depending on throughput requirements 

          No recipe required for ease of use:

          Enables productivity gains through minimum recipe customization

          Ideal for fabs and packaging areas with many different devices & die sizes

          No knowledge about geometry and physical parameters needed

          Die layout data is not necessary

          Recognition of active die area and EBR zone

          Different sensitivities for different wafer areas

          Avoiding false positives at zone transitions

          Automatic adjustment of light intensity

          Reflectivity of inspected layer is not necessary

          Automatic defect recognition parameters by adaptive software algorithm

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