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Axxon-Mycronic Enhances Conformal Coating Quality with New Inline AOI and Thickness Measurement Technology
June 3, 2025 | Axxon-MycronicEstimated reading time: 2 minutes
Axxon-Mycronic, a leading, global supplier of innovative and production-ready, dispensing and conformal coating systems, announced a breakthrough in automated optical inspection (AOI) technology for conformal coating with the introduction of its Modus inline conformal coating AOI system—CCAOI.
The CCAOI system, developed by modus high-tech electronics GmbH (now part of Axxon-Mycronic), delivers 100% inline conformal coating inspection, including precise coating thickness measurement. This powerful capability enables electronics manufacturers to monitor and control coating coverage, keep-out zones, thickness uniformity, and data traceability with accuracy and repeatability. Thanks to parallax-free imaging and a fully linearized and rectified image, the system ensures reliable measurement results even on complex geometries.
The CCAOI is available with two scanner configurations, offering fields of view of either 11.8 x 15.8 inches (300 x 400 mm) or 16.5 x 20.8 inches (420 x 530 mm). It supports full-surface coating thickness measurement for coated areas starting at 2 µm. Inspection cycle times are remarkably short- with full-surface image capture completed in just 25 seconds for the maximum scan area of 16.5 x 20.8 inches.
“Customers are under pressure to deliver higher quality and traceability in demanding sectors such as automotive, aerospace, and defense,” said Christian Vega, Product Manager at Axxon-Mycronic. “With CCAOI, we offer a true end-to-end conformal coating solution, combining accurate fluid dispensing with comprehensive inline inspection—including 3D coating thickness verification.”
One of the most advanced features of the CCAOI system is its ability to perform simultaneous double-sided inspection (top and bottom), enhancing throughput and inspection completeness. Additionally, the system includes a dual-stopper function to accommodate larger PCBs- either 16.5 x 41.6 inches (420 x 1060 mm) or 33.0 x 20.8 inches (840 x 530 mm).
The system integrates seamlessly with customer MES platforms, providing real-time data capture, analysis, and feedback for smarter process control. This new solution completes Axxon-Mycronic’s vision for a fully optimized conformal coating line—combining precision two-part fluid dispensing, advanced AOI, and traceability across the production process.
Programming time varies depending on inspection complexity, ranging from as little as 3 minutes up to 30 minutes. Despite the system’s speed and flexibility, accuracy remains uncompromised- false calls are virtually eliminated thanks to shadow-free imaging and the robust optical setup.
Modus’ expertise in AOI now enables Axxon-Mycronic to offer customers a complete ecosystem, from fluid application to automated inspection. With over 1,650 scanners and 650 camera systems in operation worldwide, Modus brings a proven track record of performance and innovation.
The CCAOI system is designed for inline deployment and delivers high-throughput performance with minimal false calls. Manufacturers can now ensure 100% inspection coverage and reduce costly rework or field failures—while meeting stringent industry compliance and reporting requirements.
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