The first automatic optical inspection equipment was successfully developed to fill the domestic gap

Recently, the technical cooperation of AOI equipment undertaken by the 45th Institute of China Electronics Technology Group passed the acceptance inspection at the national level. The technical indicators have reached the level of similar foreign equipment, marking the automatic optical inspection (AOI) equipment. Localization has been achieved and domestic gaps have been filled.

It is understood that today's electronic equipment in the structure emphasizes the realization of miniaturization, miniaturization, modularity, to meet the requirements of high performance, high reliability, large capacity, small thin and light. The assembly density of the components on the circuit board is increased, and the line width, spacing, and land area of ​​the circuit board are getting smaller and smaller, reaching the micron level, and the number of composite layers is increasing. The traditional manual visual inspection (MVI) and needle bed in-circuit test (ICT) tests are limited by the “limited contact” (constrained electrical contact and limited visual contact) and can no longer fully adapt to the development of today’s manufacturing technologies. Automatic optical inspection systems (AOI) has become an indispensable requirement for IC manufacturing, and is increasingly being used to replace traditional MVI and ICT technologies for inspections to monitor and ensure the quality of production processes. At present, China's automatic optical inspection system (AOI) equipment mainly relies on imports and has been monopolized by countries such as Israel, the United States, and Japan. The 45th Institute of China Electronics Technology Group has conducted fruitful international scientific and technological cooperation with Canada to jointly develop automatic optical inspection (AOI) equipment. Through the introduction, digestion, absorption and reinvention, it has finally developed an automatic optical inspection (AOI) with international standards. ) The equipment broke the foreign monopoly and technical blockade and reduced the price of imported products by 30%.

The 45th Institute of China Electronics Technology Group adopted technology acquisition and digestion and absorption, and captured three key technologies, such as high-speed image acquisition and hardware processing technology, defect identification and processing technology, and subtle graphical image acquisition technology, and was successfully applied to the development of AOI equipment. At present, it has obtained 4 patents, applied for and accepted 6 invention patents, published 6 academic papers, and won 1 provincial and ministerial level science and technology second prize. The completion of the project indicates that China has the strength to compete with foreign mainstream equipment in the field of automatic optical inspection equipment, and has improved the manufacturing level of China's electronic special inspection equipment.