The sensor industry has made great progress
A sensor is a device or device that can sense a specified measurement, and can be converted into a usable output signal according to a certain law. As the leading edge technology of modern technology, sensors are considered to be one of the three pillars of modern information technology. According to market reports, the global sensor market is expected to reach more than US$60 billion in 2010. The growth rate of the sensor market in China exceeds 15% and is expected to be 43 billion yuan in 2009.
Sensors are the basic products in the electronic information equipment manufacturing industry and are the key components in the development of new electronic components. Wu Yalin, director of the unit of the chairman of the China Electronics Science and Technology Association, and the deputy director of the 49th Institute of China Electronics Technology Group Corporation, said that under the guidance and support of a series of policies that the country has strongly strengthened the development and application of sensors, China’s sensors have formed a certain amount of The industry base has made great progress in technological innovation, independent research and development, and achievement transformation. A number of new sensors based on MEMS (Micro Electro Mechanical Systems) technology are entering the market. The sensor design technology, material control technology, production technology, reliability technology and test technology have been continuously developed and the mass production capacity has been gradually improved. Traditional sensors such as mechanical sensors, gas sensors, temperature sensors, optical sensors, and voltage-sensitive sensors not only have gradually increased their share in the domestic market, but also have some exports.
The broad market prospect of sensors has attracted many companies to join. Mr. Gu Rongxiang, general manager of Xi'an China Star Measurement & Control Co., Ltd., who is a professional of heavy machinery, chose the sensor industry that he is not familiar with as an entrepreneurial goal. He said: "The sensor industry has technical content and market prospects, and the competition is not very intense, I have a soft spot for the sensor industry." He said that after 12 years of development, the company based on MEMS technology pressure sensors and gyro acceleration micro The main products of the system portfolio are now exported to 45 countries and regions.
Accelerate technological innovation to avoid price war
The sensor is a widely used component with a special role, and its variety is very complicated. Lin Sufen, deputy secretary-general of the China Electronic Component Industry Association, said that the state attaches great importance to the development of sensitive components and sensors and has always supported it. However, the problems of small-scale enterprises, decentralized power, and weak technological innovation restrict the development of the industry.
Taking gas-sensing components as an example, currently there are about 30 domestic gas sensor companies. In 2009, the total output of domestic gas-sensitive components reached 6.1 million, but the products are mainly concentrated on low-cost semiconductor-based gas sensors and catalytic combustion-type gas sensors. On components, the sales market is mainly concentrated in the country and seriously overlaps. Xu Yongjun, Marketing Manager of Zhengzhou Weisheng Electronic Technology Co., Ltd. believes that this status quo directly leads to price competition as the main means and becomes increasingly fiercer. As a result, the company’s profits have fallen or even lost, and the core capabilities of new product development, equipment renewal, and product upgrades have gradually been lost. .
Guizhou Kaili Economic Development Zone Zhonghao Electronics Co., Ltd. is a high-tech enterprise specializing in R&D and production of PTC/NTC thermistors. The company has a full set of production processes ranging from powder preparation to chip production and finished product encapsulation, with an annual output of 300 million thermistor products, ranking among the best in the country. Shi Kaixuan, chairman of the company, is also deeply concerned about the vicious price war between companies. He believes that the price war is not good for anyone, not only weakening the company's profitability and development potential, but also endanger the development of the entire industry. He called for establishing a good environment for industrial development as soon as possible. Enterprises should make more efforts to accelerate innovation and enhance comprehensive competitiveness.
The increasing scale and less and less money are the common difficulties encountered by PTC thermal element companies in China. Where does ceramic PTC go? Professor Zhou Dongxiang of Huazhong University of Science and Technology says that advances in surface mount technology, system integration, and low power consumption in IC devices have accelerated the process of chip slicing of sensitive components. The annual output of thermal elements in the world exceeds 60 billion, and the slice rate is about 25%. The annual output of domestic thermal elements is about 1.6 billion, but the slice rate is almost zero. His solutions are: to break through the high-voltage and high-current technology, to enter the field of high-strength electricity; breakthrough materials lead-free technology, to go green manufacturing; break through the micro-wafer process, into the micro-integrated system.
Deng Yiming, general manager of Xiwuyi Electronic Information Group Corporation, believes that domestic varistors already have a large-scale production capacity, but there is still a gap between the actual technical level, quality level and application technology of products and advanced countries, and it is necessary to continuously optimize zinc oxide. Varistor ceramic formulation system, large-scale production technology and production equipment, improve the uniformity of the microstructure of the product and the stability of the production process, in the high potential gradient varistor, high-energy ceramic tile technology, varistor ceramics The microwave low temperature sintering technology and other aspects have made breakthroughs.
Make a difference in emerging markets such as automobiles
Worldwide, the fastest-growing sensor market is still the automotive market. Wu Yalin believes that the concept and technology of the sensor have undergone a very big change. We also need to change the traditional thinking of the sensor in the electronics industry, and go into supporting other industries other than electronics. He said that automotive sensors are very important and companies are very concerned about them. Although domestic electronic control units for domestic cars are mostly based on foreign sensors, there are more opportunities for domestic sensors in this area. Domestic enterprises must make progress in the automotive field. Not only do they need to do a good job of cost-effectiveness, they must also form their own unique competitiveness and be well-integrated with application systems. "We have entered the field with interest and eagerness." Li Weiping, general manager of Nanjing Gaohua Technology Co., Ltd., said that the car is undoubtedly a very broad market for sensors, but domestic sensors are used in small quantities on automobiles. Over the years, people have hoped that pressure sensitive sensors will make a breakthrough in the automotive field. Although the domestic automobile output has grown rapidly, domestic sensor usage is still less than 10%, and it is mostly low-end products. He said that the quality of domestic pressure sensors is generally good, but the output will not come. The most important thing is that industrialization technology is not too hard. Once the output of a product increases, the quality is prone to problems, and quality and quantity become a contradiction.
Gu Rongxiang believes that the biggest problem of domestic sensors is investment, scale, and management. Automotive applications require high prices, technologies, and scales for sensor companies. The output of foreign pressure sensors for one year is tens of millions, but domestic companies Only tens of thousands of scale. The scale does not go, and the price does not come. Capital is also the biggest problem. Private enterprises lack large-scale investment capabilities. Most of the country’s funds are afraid to invest. Even if they invest, their efforts are limited.
Industrial, academic and research cooperation
Professor Shi Yunbo, who has worked in the Institute for many years and went to Harbin Institute of Technology, said: “In the teaching process of measurement and control technology and communication engineering, I have placed special emphasis on the status and role of sensors, and I also hope to understand the needs of companies for talents in order to improve. Subject construction and scientific research work.†He further emphasized: “I have been working in the sensor industry for more than 20 years. I believe that domestic sensor companies should not be limited to the automotive market. The accessory market will also be a new outlet. Enterprises should use the advantages of having sensor core technology, extend the industrial chain to the entire system, and use their own system products to fight the end market."
Li Weiping said that foreign pressure sensors have obvious leading advantages, first of all because they have a good technical foundation, and they have formed a complete set of equipment, materials inputs and follow-up technology, including the improvement of processes and the cooperation of upstream and downstream industrial chains. The system can even produce pressure sensors that are produced within two minutes. From the domestic situation, R&D is in the ascendant, but to achieve industrialization and truly mass production, there is a huge gap. He believes that the ideas of upstream and downstream industrial chains at home and abroad should be expanded and combed. It is hoped that government agencies and industry associations will provide more opportunities for industrialization and play a role in resource integration.
Huang Xiaohong, vice president of the School of Information and Optoelectronics, South China Normal University, stressed that automotive sensors are the highlight of the sensor industry and cannot be abandoned due to the monopoly of foreign brands. He said that the thermistor element is only a few cents, but the package as a sensor, it may sell seven or eight dollars. He hopes to set up a special automotive sensor association to combine the production, research and commercialization, and focus on solving the commercial problems of sensors.
According to Liao Yanji, director of the fiber-optic sensor professional committee of the Minth Association branch and professor of Tsinghua University, in terms of fiber optic sensors, China has a market and talents, and there are also many research institutes and manufacturers. With the development of optical communication, optical devices will continue to grow. However, he also stressed that to produce products that meet the requirements of the domestic market, low cost, and high reliability, production, education, and research must be used to communicate and cooperate well.
The participants hoped to use the platform provided by Minxie Branch to exchange experiences and jointly perform a responsibility for the development of domestic sensors.
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