Automated Optical Inspection (AOI) systems are essential technologies leveraged for quality control by electronics manufacturing companies. Two types of AOI are commonly utilised: the more advanced 3D AOI and the traditional 2D AOI, with the former becoming increasingly popular in the electronics manufacturing industry.
Why are 3D AOI systems a better choice? Read this article to find out.
Powerful Inspection Capabilities
3D AOI systems inspect both the surface (x-y plane) and height (z-axis), as opposed to 2D AOI systems, which focus exclusively on two-dimensional surface images. The depth of detection provided by 3D AOI allows electronics manufacturers to assess not only the surface but also the height and volume of components, solder paste, and solder joints. Such detailed detection is largely unavailable in quality control systems relying solely on 2D AOI, which is primarily used for detecting missing components or incorrect orientations.
The three-dimensional inspection capability of 3D AOI systems makes them a more reliable choice for the quality control of modern electronic devices, which often incorporate high-complexity and high-density PCBs designed with miniaturisation in mind. In contrast, 2D AOI is usually insufficient for proper quality control of such devices and is more suited to simpler, lower-density boards, especially those without hidden components.
Enhanced accuracy
The depth and volume measurements enabled by 3D AOI technology offer higher accuracy compared to 2D AOI detection. Naturally, the ability to measure depth and volume provides a more detailed analysis of assemblies than 2D AOI. This, in turn, results in fewer false positives and negatives and reduces the need for manual reviews that are often required for result confirmation when using 2D AOI.
More efficient quality assessment makes 3D AOI play a significant role in defect detection for a Surface Mount Device (SMD). Asselems.com highlights the great value of this powerful inspection approach, and Polish contract manufacturer Assel is one of the companies that has invested in innovation.
Optimised speed of inspection
The more thorough assessment approach of 3D AOI systems is sometimes associated with a slightly slower inspection process. However, modern 3D AOI systems offer streamlined inspections with much higher speeds, which are suitable for high-speed production lines. Additionally, the minimised need for manual reviews further shortens the overall inspection time. As a result, the total time required for the quality assurance process is significantly reduced due to more accurate results and fewer instances of rework.
Inspecting your devices with 3D AOI
With 3D AOI, electronics manufacturing service providers can significantly improve the quality assurance process for equipment produced with Surface Mount Technology (SMT). Asselems.com is the place to find more information about working with an experienced contract manufacturer that offers its clients the most effective QA methods. Ensuring the quality of your devices is particularly crucial if they are intended for medical, transportation, or other demanding purposes.