Sensor innovation enters a period of high growth

"The world of things, sensing first." In recent years, with the rapid development of the Internet of Things, smart phones, automotive electronics, medical electronics and other industries, the demand for gyroscopes, accelerometers, MEMS microphones and other sensor parts has increased, and the sensor industry has entered a stage of rapid development. What is the demand direction of the sensor market? What is the future technology trend? What are the strengths and weaknesses of the Chinese sensor industry? How should it develop healthily? A few days ago, it was jointly organized by the China Electronic Components Industry Association's Sensitive Components and Sensors Division and the German Sensor Association AMA. At the 2013 Hangzhou (International) IoT Sensing Technology Summit Forum, experts from various parties conducted in-depth discussions on the above issues.

Intelligent identification, widely-connected Internet of Things as the main application of the Internet of Things and smart cities will be the most important application market for sensors, and their applications will permeate every aspect of future life.

In early 2013, the State Council issued the “Guiding Opinions on Promoting the Orderly and Healthy Development of the Internet of Things”, which clearly proposed the integration of the Internet of Things and the new generation of mobile communications, cloud computing, next-generation Internet, satellite communications, and other technologies to make it an industry. Breakthrough in transformation, upgrade and technological innovation. Regardless of whether the Internet of Things or the smart city is developing healthily, it needs to have four major characteristics: comprehensive and thorough perception, broadband-ubiquitous interconnection, smart-fusion applications, and people-oriented sustainable innovation. Among them, awareness needs are ranked first, because it is only through sensing technology that it can realize monitoring on all levels of cities and other related areas. It is possible to realize intelligent recognition, extensive interconnection, comprehensive recall, and intelligent processing behind.

In this regard, Guo Yuansheng, chief engineer of the Electronic Components Industry Development Research Center of the Ministry of Industry and Information Technology, pointed out that the Internet of Things and smart cities will be one of the most important application markets for sensors, and their applications will infiltrate all aspects of future life, such as Fire monitoring of mine power facilities; extraction and tracking of images of people and objects; monitoring of video, fiber optics, gas, temperature and humidity in intelligent buildings; biometrics and intelligent monitoring in immigration systems; others Sensors such as smart medical and health services, various sensors in smart homes, sensors based on RFID that use a variety of physical quantities, sensors for energy use detection and control, and sensors for the environment.

The standard process and advanced package-driven sensor technology enhance the sensor technology to present a single functional feature, and it is moving towards the direction of intelligence and integration.

With the rapid development of application markets such as the Internet of Things and smart cities, higher sensor technology has been proposed in terms of low power consumption, reliability, stability, low cost, miniaturization, miniaturization, compoundness, and standardization. The request. In conjunction with the above requirements, sensor companies are also actively developing technology research and development to meet market demand.

"The advantages of MEMS are its mass production technology, low cost, ease of integration, and low power consumption. At the same time, however, MEMS sensors also have a small volume that can currently only be processed with quasi-three-dimensional technology, and the processing accuracy is relatively low. Therefore, when further developing sensor technologies to meet market demands, attention should be paid to avoiding shortcomings by taking measures, such as the difficulty of implementing universal standard process problems for sensors, and existing companies are developing process standards in specific areas, such as MUMPs, etc.; In spite of the huge diversity of devices, including moving structures, difficult packaging, and high cost, companies have already developed wafer-level packaging technology, and wafer-level packaging can effectively reduce the difficulty of subsequent packaging and assembly. Widely used, many Foundry have introduced WLP service.Because MEMS devices have low density, low operating frequency, and can tolerate certain series resistance, the requirements for TSV are lower than IC, so the current TSV technology has also obtained certain applications. "Researcher and Ph.D., Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences Mentor Yang Heng introduced.

Summarizing the technological trends of MEMS sensors, Yang Heng pointed out that compared to traditional technologies, sensor technology has emerged as a single functional feature, and it has developed toward the direction of intelligence and integration. In addition, digitalization, networking, low cost, and standardization have also become the overall trend in the development of sensor products.

Government enterprises work together to solve the problem of small-scale problems in the sensor industry. In particular, the reliability design of sensors should be strengthened to solve the problem of low reliability of domestic products.

Given the wide market application of sensors, it has become an extremely important electronic device. It is imperative to intensify efforts to promote development. Prior to this, the Ministry of Industry and Information Technology jointly issued the "Accelerated Action Plan for Accelerating the Development of Sensors and Intelligent Instrumentation Industry" jointly with the Ministry of Science and Technology, the Ministry of Finance, and the National Standardization Management Committee, and proposed the overall development target for 2013 to 2025: the overall level of sensors. Entering the world's advanced ranks, the industrial pattern will be transformed from "manufactured manufacturing" to "service-oriented manufacturing," and sensors and intelligent instrumentation required for national defense and key industry safety and major projects will be autonomously manufactured and autonomously controlled. The market share of products and services increased to more than 50%.

However, Xu Kaixian, Honorary Chairman of Sensor Association of China Instrument and Meter Industry Association stated that currently domestic sensors still have poor stability, reliability and consistency, and the common common basic technology research is lacking for a long time; industrialization issues have not been well resolved and it is difficult to achieve batch Production, business models, and market mechanisms are inactive, and marketing is difficult to apply, and it is difficult to exert resources and talent advantages.

To solve the above problems, Xu Kaixian pointed out that on the one hand, it needs to be coordinated from the national government level: coordinating the layout of China's sensor industry; paying attention to the convergence with major national special projects and key projects; strengthening communication and consultation among various government departments; Use “collaborative innovation; play a role in the role of the enterprise; promote structural adjustment of the industry, form leading enterprises and the “small and refined, precise and specialized, and special” industrial development model; strengthen the construction of standards, testing, and equipment platforms, and encourage the adoption of domestic sensor.

On the other hand, for the sensor design and manufacturing department, comprehensive considerations should be taken from the aspects of product, application market, marketing model, infrastructure, and professional personnel coordination. In particular, the reliability design of sensors should be strengthened to solve the problem of low reliability of domestic products. . First, the reliability index should be determined.