The core of the sensor is a big problem, and domestic manufacturers are catching up
In the smart home and IoT world, sensors are critical. Wherever the household goes, the lights in the room will open accordingly, and the lights will automatically go out after leaving. After the tenants leave home, the security system will automatically start, and the door and window magnets, infrared intrusion detectors and other devices can be alerted when someone invades. These are sensors for smoke, heart rate, angle, distance, light and temperature. Credit.
Nowadays, sensors have been integrated into every corner of life. It can analyze the daily behavior of users and increase the interaction between users and the surrounding world. Through some commonly used smart sensors, the convenience and safety of life can be greatly improved. The sensor can also control the working state of various types of electrical appliances, and control them to save energy and reduce emissions and reduce household electricity costs.
Although China's scientific and technological progress is rapid, the core technology is still in the old capitalist countries such as the United States, Japan and Germany. In the field of sensors, like ZTE's position in the international chip giant, in order to avoid this situation, domestic sensor manufacturers are catching up.
At present, the global sensor market is dominated by several leading companies in the United States, Japan, and Germany. The United States, Japan, Germany and China together account for 72% of the global sensor market share, of which China accounts for about 11%. Some research institutes predict that the sensor compound annual growth rate will be 9.5% in the next five years. In 2020, the sensor market will exceed 180 billion yuan.
Traditional electronics giants such as Bosch, STMicroelectronics, Honeywell, Freescale, and Hitachi all use sensors as their main growth point for their future business. About 70% of the Chinese sensor market is occupied by foreign companies such as STMicroelectronics and Freescale. Chinese local companies have a small market share, and representative companies include Hanwei Electronics, Dali Technology, and Huagong Technology.
In the global consumer inertial sensor (accelerometer + gyroscope) market, STMicroelectronics is a market leader, with a market share of 41% in 2014. Asahi Kasei Microelectronics, Ying Meisheng and Bosch followed closely, and these four inertial sensor manufacturers accounted for 75% of the market.
Domestic sensor challengesThe sensor consists of three parts: the sensitive component, the sensing component and the conversion circuit. The sensitive component can directly sense the measured change and output the component that is measured to determine the relationship. The output of the sensitive component is the input to the conversion component, which converts the input into a circuit parameter. The above circuit parameters enter the basic conversion circuit and can be converted into a power output.
From the development of domestically produced sensors, the core of the sensor is a big problem. The high-end, high-sensitivity analysis, component analysis and special application of the high-end sensor are far from the foreign countries. Nearly 100% of the high-end sensor products are imported from abroad. 90% of chips rely on foreign countries. There is a lack of domestic research and development and industrialization capabilities for new principles, new devices and new material sensors.
At the same time, the key technologies of domestic sensors have not yet broken through, and there are big gaps in design technology, packaging technology and equipment technology compared with foreign countries. There is no set of sensor design software with independent intellectual property rights in China. The reliability of domestic sensors is 1-2 orders of magnitude lower than that of similar foreign products. The sensor package has not yet formed a series, standard and unified interface. Sensor technology equipment research and development and production is monopolized by foreign countries.
The industrial structure of domestic sensors is unreasonable. Variety, specifications, series are incomplete, technical indicators are not high, domestic sensor products often do not form a series. The measurement accuracy, temperature characteristics, response time, stability, reliability and other indicators of the product are also quite different from those in foreign countries. In addition, more than 95% of China's sensor companies are small enterprises with small scale, weak R&D capabilities and poor scale benefits. From the current market share and market competitiveness index, foreign-funded enterprises still occupy a large advantage.
Domestic manufacturers are catching upAlthough there are still many problems in domestic sensor manufacturers, Hanwei Electronics' gas detection instruments are typical representatives of the perceptual properties. Hanwei Electronics is a domestic gas sensor faucet, starting with gas sensors and gradually extending to the gas detection instrumentation and system market. Among them, the domestic market share of gas sensors is over 60%, and gas detection instruments are 9%. In addition to gas sensors, Hanwei Electronics is actively developing sensors for pressure, pyroelectric and temperature.
Hanwei Electronics is mainly engaged in the development and production of sensors for the safe monitoring of flammable gases and toxic gases. The infrared and electrochemical sensors are the only commercial enterprises in China. Full coverage of four major categories of products has been implemented, including semiconductors, catalysis, infrared and electrochemical sensors.
There is also Suzhou Gushu, a sensor company specializing in semiconductor rectifier device chips, power diodes, rectifier bridges and IC package testing. Its subsidiary, Minghao Sensing, is mainly engaged in the research and development, design and production of MEMS sensors and provides related technical services. The main product directions are: accelerometer, gyroscope (in development), pressure sensor, magnetic sensor and MEMS microphone, aiming to provide the required products and integration solutions for consumer electronics, automotive electronics, industrial automation and other fields.
Huagong Technology Industry Co., Ltd. from Wuhan, Hubei Province is a national key high-tech enterprise. Based on more than ten years of development, sensor technology, optical communication technology, information traceability technology, laser processing technology, etc., to help realize the realization of things, equipment and human intelligence. interconnected. Huagong Technology takes "laser technology and its application" as its main business. Based on the established industrial structure of laser equipment manufacturing, optical communication devices, laser holographic imitation, sensors and information traceability, it aims at the global "re-industrialization" development trend and Its own characteristics, focus on the advantages of resources to develop "smart manufacturing" and "IoT technology" two business directions.
summaryOn the systematic evolution of foreign sensors, there will be a large number of cooperation and mergers between sensor manufacturers and software, system integration, and downstream application vendors, or a more connected sensor ecosystem, or a sensor system supply. Business. The domestic sensor industry will also have a large number of domestic and cross-border mergers and acquisitions. In this process, domestic sensor companies should achieve rapid growth through independent innovation on the platform built by M&A, and pay attention to patent application and protection, thus gradually becoming a world-renowned sensor manufacturer.
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