Printed Circuit Boards (PCBs) are often called the “mother of all electronics” because they connect and support all electronic components — from small devices like watches and calculators to large systems like computers, communication equipment, and military hardware.
Since PCBs play such a key role, their quality has a direct impact on product performance. That’s why surface inspection is a critical step in PCB manufacturing. As automation increases and manual inspection becomes less practical, machine vision technologies are replacing human eyes — offering faster, more reliable, and continuous inspection.
💡 Why Machine Vision for PCB Surface Inspection?
Non-contact measurement avoids damage, scratches, or deformation of the PCB.
Higher efficiency and consistency than manual inspection — even during high-speed SMT (Surface Mount Technology) production.
Early detection of repeatable errors like misalignment or incorrect components helps reduce costs and improve quality.
No need for complex fixtures like ICT testing; inspection code can be generated easily from CAD data.
Reliable performance in detecting fine defects, which is harder to achieve with human eyes.
🌈 Why Use Chromatic Confocal Sensors?
Hypersen’s chromatic confocal sensors are ideal for this task:
✅ High material adaptability – accurately detects high-reflection, transparent, or highly absorbent surfaces like glass, coated PCBs, and solder joints.
✅ Ultra-high precision – sub-micron accuracy enables the detection of even the smallest surface flaws.
✅ 2D, 3D, or hybrid detection – flexible configurations depending on inspection needs.
✅ Stable performance under strong reflections – perfect for shiny and complex PCB surfaces.
⚙️ Typical Defects Detected
Surface scratches
Contamination
Soldering issues
Coating defects
Misaligned traces or patterns
🏭 Applications
This solution is already being used in:
High-end PCB manufacturing
Flexible electronics production
Quality assurance labs
Automated production lines for electronics
