What to Know About PCB AOI Inspection and How it Works?
AOI is a form of visual examination during the SMT assembly process. It is useful to conduct an AOI Inspection in PCB assembly. There is an essential value in conducting this test while finalizing the circuit assembly. But how is the test conducted, and what is the entire process work? We will explore the importance of the PCB AOI Inspection for successful assembly.
How is the PCB AOI Inspection Conducted?
The entire process in PCB AOI Inspection performs a detailed scan of the PCB board using a high-resolution lens in a camera. The scanning will identify every single hidden issue like missing components, short circuits, quality defects, and solder joint defects.
The camera uses infrared rays, ultraviolet, LED, and fluorescent illumination to trigger several hidden images. These proofs are used to build standard results for a PCB circuit after successful assembly.
During production runs, the AOI inspection machine scans and relates the images to compare them against the gold standard of the assembly. The aim of this testing will find out the hidden and potential defects. At YINGSTAR, the expert technicians will examine those defective areas a close view. The process requires expertise to rectify the defective areas.
Benefits of PCB AOI Inspection:
PCB AOI inspection shows the process problems in the bare boards and the entire assembly in the initial phase. The test provides original feedback about the quality of PCB assembly and addresses hidden issues.
The best benefit of the AOI inspection is to find out product defects that can reduce the cost of product failure. It also assists in avoiding the problems that may occur during the production of large-scale PCB Assembly. It will deliver the resultant data and real-time inspection, which allow for better quality control of the PCB Assembly process.
The test can rectify potential defects and assembly issues. Most equipment used in the AOI inspection is auto-tuned. These allow the CEM (Contract electronics manufacturers) to filter out the issues and catch the defects that are not visible through physical identification.
Considerations to Notice for AOI Inspection:
There are specific points that you need to consider while evaluating the quality of PCB Assembly through the PCB AOI inspection.
Pass Rates vs. Parameters
Try to achieve a higher AOI pass rate while producing the PCB products. A Higher AOI rate can support the arguments to pass the products and their operations. However, a higher pass rate is not an authentic identification for long-term and guaranteed performance.
Same that a low pass rate in AOI testing does not refer to the poor build quality of your product. The safe solution is to get the assistance of an EMS partner that can inspect the working parameters. Through this, you can ensure repeatable and consistent output of your product.
Blending the Product Automaton with Manual Testing
There is a huge tendency to view technology as the best solution to find out hidden manufacturing problems. Thus you must check the product manually and inspect the defects closely. Manual inspection with PCB AOI inspection will give you better results.
Conclusion:
PCB AOI inspection plays a vital role in ensuring hidden defects. This test’s value is focused on making reliable electronic machines and products.
At YINGSTAR, the technicians are committed to focusing on the integrity and quality of the PCB Assembly process. If you also need to hire a prospective team to assemble your PCBA boards under high-quality standards, then get in touch with YINGSTAR now!
