According to MarketsandMarkets,the automated optical inspection market was valued at USD 598 million in 2020 and is projected to reach USD 1,660 million by 2026. It is expected to grow at a CAGR of 20.8% during the forecast period. Advantages of AOI over other inspection methods, upsurge in the demand for consumer electronics amidst pandemic, rising need for miniature, high-speed PCBs, demand for higher productivity by electronics manufacturing services (EMS) companies, and growing demand for electronics in automotive sector are contributing to the growth of the automated optical inspection market. Advent of SMART technology, newer applications of AOI systems apart from PCB inspection, and growing demand for AOI systems for inspection of IC substrates act as a growth opportunity for the market players.

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The 3D AOI system market is expected to be dominant and faster during the forecast period. Large-scale manufacturing units primarily make use of 3D AOI systems. 3D AOI systems have high operational costs and use complex programming codes for functioning but are more efficient and sensitive at detecting defects and faults than 2D AOI systems. 3D AOI systems can detect faults in PCB substrates as well as in the ball grid array (BGA), which makes them superior to 2D AOI systems. Further, the ability to quickly inspect defects in tall components, significant reduction in false call rates, and ability to provide volumetric data of components under inspection make 3D AOI systems an ideal choice for electronic manufacturing service (EMS) providers in the coming years.

The inline AOI system is expected to be a larger and faster-growing market during the forecast period. Inline AOI systems offer a higher rate of PCB inspection, which is ideal for electronics manufacturing companies involved in high-volume production. Hence, most large manufacturing companies install multiple inline AOI systems in their production lines to speed up the inspection process. Several key manufacturers are making innovations and developments in inline AOI systems. For instance, in March 2021, Viscom developed the new Heavy Flex handling solution. The Heavy Flex handling options are available for Viscom's S3016 ultra AOI system for optical inline 3D inspection. Also, in June 2020, GOEPEL launched two new AOI systems. The 3D XE series of AOI platforms is characterized by low acquisition costs whilst still delivering full 3D inspection functionality. The series consists of the standalone system Basic Line · 3D XE and the inline system Advanced Line · 3D XE.

In terms of geographic coverage, the AOI market has been segmented into North America, Asia Pacific (APAC), Europe, and the Rest of the World (RoW). APAC accounted for the largest market share of the AOI market in 2020. APAC is the leading region for global PCB production, with countries such as China, Taiwan, Japan, and South Korea at the forefront. The increase in high-volume manufacturing of PCBs creates a demand for AOI systems with faster inspection speed. The APAC electronics industry has become a world-class innovation-driven hub for production as a result of low-priced skilled labor, business-friendly environment, low production cost, and growing demand for electronic products in the region. The growth in the electronics industry has enabled the APAC AOI market to grow at a significant rate.