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Camera-Based Quality Control System for Solar Cell Manufacturers

At the 26th European Photovoltaic Solar Energy Conference and Exhibition from September 5 - 9, 2011 in Hamburg, VITRONIC is presenting camera-based inspection systems for the quality control of solar cells, wafers and modules. This allows the implementation of customized solutions for complex challenges and specific requirements.

VITRONIC is a leading supplier of camera-based inline inspection systems for photovoltaics, with almost 1,000 VINSPECsolar systems installed for 40 customers around the world. VINSPECsolar solutions are not only suitable for carrying out standard tasks in the quality control of solar cells, wafers and modules efficiently and safely, but also for complex inspection processes, sophisticated system integrations and flexible upgrades, where other systems struggle.

With their high-resolution camera technology, VINSPECsolar systems reliably recognize defects including micro cracks, inclusions, holes, corner and edge breakage, as well as grid line interruptions, paste marks and color deviations flaws. They ensure that variations in quality are quickly recognized so that the product quality can be kept at a consistently high level. Tried-and-tested intelligent classification software makes it possible to sort reliably by color class, A and B quality or rejection rate.

In addition, VINSPECsolar solutions allow valuable data to be collected during quality control in order to optimize processes - for example by recognizing deviations in the production process or improving the integration of modified processes. The particular flexibility of the inspection system is also shown by the fact that more than 100 of the current generation of solar cell types have been calibrated and this information is being used by a range of customers on a daily basis - a tremendous challenge in light of the significant differences between different solar cells, for example in terms of print layout and surface texture.

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