The hottest sensor industry in China has developed

The rapid development of China's sensor industry has penetrated into all levels of life

IOT world, sensor first. In recent years, with the rapid development of IOT, intelligence, automotive electronics, medical electronics and other industries, the demand for gyroscopes, acceleration sensors, MEMS microphones and other sensing devices is increasing, and the sensor industry has entered a stage of rapid development

the world is connected by things, and sensing takes the lead. In recent years, with the rapid development of IOT, intelligence, automotive electronics, medical electronics and other industries, the demand for gyroscopes, acceleration sensors, MEMS microphones and other sensing devices is increasing, and the sensor industry has entered a stage of rapid development

IOT and smart city will be one of the most important application markets of sensors, and their applications will permeate all levels of future life

at the beginning of 2013, the State Council issued the guiding opinions on promoting the orderly and healthy development of IOT, which clearly proposed to promote the integrated development of IOT and new generation mobile communication, cloud computing, next generation interconnection, satellite communication and other technologies, making it a breakthrough in industrial transformation and upgrading and technological innovation. Whether IOT or smart city develops healthily, it needs to have four characteristics: comprehensive and thorough perception, broadband ubiquitous interconnection, intelligent integration application and people-oriented sustainable innovation. Among them, the perception demand is listed in the first place, because only through the sensing technology, the monitoring of cities and other relevant levels can we realize the following intelligent recognition, extensive interconnection, comprehensive call, intelligent processing, etc

in this regard, when Guo Yuansheng, chief engineer of the electronic component industry development research center of the Ministry of industry and information technology, imposed any load, he pointed out that IOT and smart city will be one of the most important application markets of sensors, and their applications will permeate all aspects of future life, such as fire monitoring with electrician operation knowledge for forest mine power facilities; Extraction, tracking and monitoring of human and object images; Monitor video, optical fiber, gas, temperature and humidity in intelligent buildings; Biometrics and intelligent monitoring in the entry-exit management system; Other sensors include smart medical and health service sensors, various sensors in smart home, sensors mainly using RFID and various physical quantities in intelligent transportation system, sensors for detecting and controlling energy consumption, environmental sensors, etc

sensor technology presents a single functional feature, and is developing in the direction of intelligence and integration

with the rapid development of IOT, smart city and other application markets, higher requirements are put forward for sensor products in terms of low power consumption, reliability, stability, low cost, miniaturization, miniaturization, composite, standardization and other technical and economic indicators. In combination with the above needs, sensor enterprises are also actively carrying out technology research and development to meet market demand

mems has the advantages of mass manufacturing technology, low cost, easy integration and low power consumption; But at the same time, MEMS sensors also have the problem of too small volume, which can only be processed by quasi three-dimensional technology at present, and the processing accuracy is relatively low. Therefore, when further developing sensing technology to meet market demand, we should pay attention to taking measures to develop strengths and avoid weaknesses. For example, aiming at the problem that it is difficult to realize the universal standard process of sensors, enterprises have begun to develop process standards in specific fields, such as mumps; In view of the wide variety of sensor environment interfaces, the movable structure of devices, the difficulty of packaging and the high cost, enterprises have been developing wafer level packaging technology. Wafer level packaging can effectively reduce the difficulty of subsequent packaging and assembly. At present, wafer level packaging has been widely used, and many foundries have launched WLP services. In addition, because MEMS devices have low density, low operating frequency and can tolerate a certain series resistance, the requirements for TSV are lower than IC, so TSV technology has also been applied to a certain extent. Yang Heng, researcher and doctoral supervisor of Shanghai Institute of microsystems and information technology, Chinese Academy of Sciences

summarizing the technical trend of MEMS sensors, Yang Heng pointed out that compared with traditional technologies, sensor technology presents a single functional feature, and is developing in the direction of intelligence and integration. In addition, digitalization, networking, low cost and standardization have also become the overall trend of sensor product development in excess of the annual target

in particular, the reliability design of sensors should be strengthened to solve the problem of low reliability of domestic products

in view of the wide market application of sensors, which have become extremely important electronic devices, it is imperative to strengthen efforts to promote development. Previously, the Ministry of industry and information technology, together with the Ministry of science and technology, the Ministry of Finance and the National Standardization Administration Committee, issued the action plan for accelerating the development of sensors and intelligent instruments and meters industry, proposing the overall development goals for 2013-2025: the overall level of sensors has entered the world's advanced ranks, and the industrial form has changed from production-oriented manufacturing to service-oriented manufacturing, involving national defense and key industrial safety The sensors and intelligent instruments and meters required for major projects have been independently manufactured and controlled, and the market share of high-end products and services has increased to more than 50%

however, Xu Kaixian, honorary chairman of the sensor branch of China instrumentation industry association, said that at present, domestic sensors still have poor stability, reliability and consistency, and there is a long-term lack of research on the key common basic technology of various structural materials such as metal, non-metal and composite materials; The industrialization problem has not been well solved, and it is difficult to achieve mass production; The business model and market mechanism are not active, the market promotion and application are difficult, and it is difficult to give full play to the advantages of resources and talents

to solve the above problems, Xu Kaixian pointed out that on the one hand, it needs to be coordinated from the national government level: coordinate the layout of China's sensor industry; Pay attention to the connection with major national projects and key projects; Strengthen communication and consultation among government departments; Promote the collaborative innovation of government, industry, University, research and application; Give play to the main role of enterprises; Promote the adjustment of industrial structure, and form a leading enterprise and a small but refined, refined and specialized, specialized and strong industrial development model; Strengthen the construction of standards, testing and equipment platforms, and encourage the use of domestic sensors

on the other hand, for the sensor design and manufacturing department, we should comprehensively consider many aspects, such as products, application market, marketing mode, infrastructure, professional personnel coordination, etc., especially strengthen the reliability design of sensors, and solve the problem of low reliability of domestic products. First, the reliability index should be determined, which can be determined together with the product function and performance index. Secondly, establish reliability model, reliability distribution, reliability analysis, reliability prediction, reliability design review, carry out reliability test of trial products, and gradually improve the design