Automatic optical inspection of printed circuit boards

Automatic optical inspection of printed circuit boards

An automatic optical inspection system (AOI) has been developed for the assembly control of printed circuit boards, which detects the following characteristics:

  • Tombstoning
  • Tin splash on component
  • Components not present, twisted, etc.
  • Check for bent pins (pin spacing min. 0.4mm)
  • Color coding on components


  • max. width of 460 mm
  • smallest component 02-01 -> 0.6×0.3mm
  • Interface between individual devices: SMEMA
  • Stand-alone or inline possible

The 3D model creation is performed by data acquisition of a golden sample, which must be manually controlled by an employee beforehand. If the golden sample is considered good, a 3D point cloud is recorded and a 3D CAD model is created. Also, a 2D line scan camera is used to capture a color image of the printed circuit board. Based on this color image, the inspection criteria are selected in the software.

Do you also need a solution in the field of industrial image processing?

AUTFORCE is a specialist in automated quality inspection. Get in touch with us. Together we will find the best solution for your project!

Markus Piffer
CEO AUTFORCE Vision Systems GmbH

+43 (664) 966 36 38

Let’s talk!