The best protection: automatic inspection of fluorescent conformal coatings

Inspections to verify the functionality of technical end products in the automotive, aerospace, medical and telecommunications industries have to be absolutely reliable. Equipping circuit boards with a coating after soldering protects electrical contacts against moisture, corrosion, dirt and other environmental influences to ensure the product continues to function flawlessly over the long term. The automatic conformal coating inspection system from Viscom inspects circuit boards to verify the presence of the coating, a defect-free surface and the thickness of the coating layer. The S3088 CCI system features built-in UV LEDs that effectively highlight the contrast between conformal coatings and uncoated areas. With a camera resolution of up to 15 μm/pixel, the S3088 CCI makes cracks, blisters, smearing and coating splatter easy to see – even with especially thin coatings or coatings containing silicone, which have weaker reflective properties. The upper transport height of 105 mm provides even more flexibility during final inspections for fully mounted PCB assemblies.