PCB and box-build end-of-line inspection.

Where Eolvision fits in your electronics line

End-of-line is different from in-process AOI

Automated optical inspection (AOI) systems at SMT and through-hole stages catch placement errors before reflow. End-of-line inspection catches a different class of defects: post-test connector damage, conformal coating holidays over through-hole areas, box-build assembly errors, and final label verification. These defects aren't visible at SMT stage — they occur after wave soldering, cleaning, and manual assembly steps.

Eolvision is designed for PCB contract manufacturers running IPC-A-610 Class 2 or Class 3 production. Inspection thresholds are configurable per class level per production run.

IPC-A-610 quality standard context

Eolvision is designed to support IPC-A-610 Class 2 (industrial electronics) and Class 3 (high-reliability electronics) acceptability criteria. Specific provisions supported:

• — Section 7: Solder connections — Class 2 and Class 3 accept/reject thresholds
• — Section 10: Terminal connections — component presence verification
• — Section 14: Conformal coating — holiday and coverage verification

Designed with these controls in mind. Not a compliance certification. Verify with your quality manager.

Coaxial lighting for solder inspection

Solder joint inspection requires coaxial illumination to capture specular reflection from the solder fillet. This lighting configuration shows solder joint geometry clearly by revealing the transition zone between a correctly formed fillet and a cold or insufficient joint. Eolvision recommends coaxial lighting paired with a 2D area scan camera at 5–12 megapixel resolution for through-hole and SMD solder inspection.

See lighting configurations