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Wafer Inspection

Photoluminescence (PL) inspection systems
for as-cut wafer and wafer

Wafer Inspection

Highly sensitive wafer inspection system

Raw wafers and processed wafers exhibit a variety of invisible defects which reduce the performance and stability of the end product, for example in solar cell production. The greateyes inspection systems image these problems.

Photoluminescence imaging has become an indispensable tool for non invasive, contactless quality control and optimisation along the process chain of solar cell manufacturing. The offered systems deliver spatially resolved information about important material properties and are therefore a valueable tool for production as well as research and development.

LumiSolarCell - innovative, award winning system

The award-winning LumiSolarCell System utilises the photoluminescence to image micro cracks, inhomogeneities, or other cell failures of photovoltaic wafers. Compared to other PL systems LumiSolarCell provides a unique approach to the world of PL inspection, using an innovative High-power LED light source for excitation of the substrates instead of a laser.

Photoluminescence and thermograph as contactless and therefore non-destructive methods are an indispensable tool for advanced solar research. The knowledge gained will lead to increased product quality and yield.

Features and Benefits

  • Inspection of as-cut wafer and wafer
    Flexibility to measure a variety of different wafer materials, such as mono-Si, a-Si, CIS, HIT and many more
  • Contactless characterisation
    Non-destructive PL measurement
  • Outstanding sensitivity and image quality
    Enabling measurement of multiple PV technologies
  • Award winning system
    Industry proven all over the globe
  • Unique high-power LED light source
    Low-maintenance and no limiting safety requirements compared to laser-based systems

System Components

  • Highly-sensitive scientific CCD-camera
    With very short exposure times outperforms commercially available PL systems
  • High-power LED light source
    Developed and produced by greateyes

LumiSolarCell Gallery

Caption (need to ask Roman)

Caption (need to ask Roman)
Caption (need to ask Roman)

LumiSolarCell software

Providing camera control and data set visualisation

The LumiSolarCell software controls the camera and visualizes the data sets. The program can generate intensity profiles from the 16-bit high dynamic range image data. Basic picture manipulation procedures are included in the software. Dimension measurements of artefacts are possible following calibration as well as remote control of power supply and high power LED light source.

Software Features

General functions:

  • Single shot, videomode
  • Load and save images, Quicksave

Image data formats:

  • BMP, PNG, JPEG, TXT, raw data, and TIFF (18 bit) 

Visualisation:

  • Gray scale or false-colour
  • Zoom functions
  • Linear / logarithmic scaling
  • Intensity profiles

Special functions:

  • Distance measurements
  • Remote control of power supply
  • Automatic background subtraction

System requirements:

  • Windows 10 / 11
  • USB 2.0 Interfaces

Request more information

    greateyes GmbH

    Ludwig-Boltzmann-Straße 3
    12489 Berlin
    Germany

    For Service & Support

    Contact Us

    Ludwig-Boltzmann-Straße 3
    12489 Berlin

    Phone:
    +49 (0)30 221 844 700
    Email:
    info@greateyes.de