Explore the advanced road of domestic high-end sensors

 In the era of "Internet of Everything", we must first solve the problem of "perception". As the "eyes, ears, mouth, nose" of the information age, sensors collect information from the outside world. However, on the one hand, China's sensor market is growing rapidly, and on the other hand, domestic high-end sensors are in urgent need of breakthroughs. From process improvement to engineering iteration, what is the way to find the advancement of domestic high-end sensors?

How many sensors do you have on your phone? Taking the camera function as an example, the image sensor can handle low light, autofocus, high-speed focus, etc.; The motion sensor is anti-shake. In addition, accelerometers can be used to count steps, as well as gesture recognition; The ambient light sensor helps to automatically adjust the brightness and darkness of the screen. A mobile phone already has dozens of sensors integrated on it.

Today's sensors are smaller than they used to be, with lower power consumption and lower costs. This is closely related to MEMS technology, which stands for tiny electromechanical systems. Using semiconductors such as silicon wafers as the technology carrier, MEMS sensors amplify the collected sensitive signals through circuits. Ding Huiwen, general manager of Shanghai Microtechnology Industry Research Institute, said that from the most "basic" physical sensing, such as the perception of vibration and pressure, to light, to infrared and sound, the integration of multi-sensor fusion and artificial intelligence technology will be the future direction.

In recent years, the scale of China's sensor market has maintained rapid growth. According to the "China Sensor Manufacturing Industry Development Prospect and Investment Forecast Analysis Report" released by the Prospective Industry Research Institute in June, the industry market size reached 147.2 billion yuan in 2018, a year-on-year increase of 13.2%, and maintained a double-digit growth rate in the past five years.

Although China's sensor market has maintained rapid growth, it has been facing the problem of "high-end sensors to be broken through". "China's sensor industry has formed a complete industrial system from research and development, design, production to application, but there is still a gap between the overall and the international advanced level, and nearly 80% of high-end intelligent sensors rely on imports, especially chips."