AOI systems – optical inspection systems in PCBA manufacturing

The ever-increasing complexity of electronic PCBA is placing increasingly demanding inspection requirements on electronics manufacturing. Despite rapid advances in the development and production of assembled PCBA, quality assuranceremains a key issue – in particular, the selection of efficient inspection systems with high test coverage.

While functional tests enable cost-effective contacting of the PCBA, they often involve a great deal of effort in terms of fault analysis and repair: this is where a automated optical inspection machine offer a powerful addition.

Modern systems from 3D AOI, SPI machines (3D solder paste inspection) and automatic x ray inspection for PCB enable precise evaluation of the quality of solder joints, solder pastes and components on printed circuit boards – thereby making a significant contribution to process reliability and product quality.

AOI machine – a good decision

AOI systems are constantly evolving in line with increasing demands for quality and flexibility in board manufacturing. AOI machines must test components of various housing sizes, check solder joints and evaluate them, and integrate seamlessly into manufacturing processes with their testing speed. The AOI software with its built-in camera systems can do this. At the same time, false rejects and undetected errors must be kept to a minimum – even with component variants or supplier changes.

The generation of test programmes with the AOI software must be simple and quick.

Despite these high requirements, 3D aoi machines are now the all-rounders in the field of optical inspection methods: AOI testing offers high test coverage. The use of AOI test systems is particularly effective for small and medium batch sizes. The low initial investment and high testing accuracy directly contribute to reducing manufacturing costs and increasing product quality.

GÖPEL electronic offers the entire range of optical inspection systems. From the SPI machine (SPI inspection) for checking solder paste printing, to an inline AOI for THT or SMD-assembled PCBA, to AXI machine for BGA x ray inspection. And furthermore, GÖPEL electronic's AOI PCB inspection can be used for conformal coating inspection (CCI) of various protective coatings applied to boards. Combining all these processes in the production line enables comprehensive quality check and ensures the reliability of your electronic products.