Dishan Technology's sensor chips help aerospace move towards the stars and the sea

Image sensors are a technology intensive and widely used key link in the semiconductor industry chain, and their performance directly affects the perception accuracy and response speed of smart devices.

Dishan Technology's sensor chips help aerospace move towards the stars and the sea

In the journey of exploring the vast universe and pursuing dreams of stars and oceans, the aerospace industry has put forward extreme requirements for the reliability, accuracy, and adaptability to extreme environments of technology. As a modern intelligent system“sense”and“nerve endings”Sensor chips play an irreplaceable role in key areas such as aircraft attitude control, environmental monitoring, structural health diagnosis, and propulsion system management. With its profound accumulation in the fields of semiconductors and high-end sensing technology, Dishan Technology's independently developed high-performance sensor chips are gradually being applied in the aerospace industry, injecting high reliability and high precision into the country's important equipment“Chinese chip”power. These chips not only carry the wisdom of technological breakthroughs, but also embody the ingenuity and mission of Chinese scientific and technological workers, becoming a precise link connecting the earth and the universe.

Breakthrough in hardcore technology, creating aerospace grade sensor chips

The aerospace environment is extremely complex and faces high radiation, such as the dose rate of cosmic rays that may reach hundreds of times that of the Earth's surface; Ultra low temperature, the lowest temperature can be reduced to-180℃following; Strong vibration, frequency and acceleration may exceed10GHigh vacuum, with a pressure of only one millionth of the Earth's sea level; And there is a drastic temperature change, where the temperature may jump from extreme low to extreme high within seconds. These extreme conditions pose a serious challenge to the stability and durability of electronic components. Dishan Technology focuses on the research and development of aerospace grade chips, innovating comprehensively in material selection, circuit design, and packaging processes to ensure that sensor chips remain stable and reliable under extreme conditions. At the material level, the team has broken through the limitations of traditional silicon-based materials and developed radiation resistant composite semiconductor materials, combined with advanced technologySOIThe silicon on insulator (SOI) process significantly reduces the impact of radiation particles on chip logic circuits. This material forms a composite lattice structure by doping specific rare earth elements (such as tantalum and hafnium), which increases the self-healing speed of lattice defects when the chip is subjected to high-energy particle bombardmentthreeMore than twice, effectively resisting radiation damage. In circuit design, redundant circuits and error correction coding techniques are used to construct“Triple protection”Mechanism: The first layer ensures that a single point of failure does not affect overall functionality through hardware redundancy design; The second layer introduces Hamming code error correction algorithm to automatically correct data bit errors; The third layer establishes a dynamic monitoring system to evaluate the working status of the chip in real time and trigger backup circuits. In addition, the team has established the first aerospace grade chip extreme environment simulation laboratory in China, which simulates complex space environments such as cosmic rays (protons, electrons, heavy ions), solar wind, and lunar dust to conduct millions of rigorous tests on chips, ensuring that each chip can“Can withstand it”The test of deep space.

  Radiation resistant designUsing special technology and shielding structure, it effectively resists the interference of cosmic rays and high-energy particles on the chip logic circuit. The anti radiation sensor chip withstands the test of the Earth's radiation belt, ensuring stable transmission of navigation signals. Its core lies in the internal integration of the chip“Radiation dose monitoring module”It can quantify the radiation dose in real time and dynamically adjust the circuit working status, combined with the boron carbide composite coating coated on the surface, to reduce the radiation impact to that of traditional silicon-based chips1/10.

Wide temperature range working abilityChips can be used in-60°Cto+125°CEven more stable operation within a wider temperature range, adapting to the drastic temperature changes from ground launch to space orbit. In the lunar exploration project, a lunar rover equipped with sensors from Dishan Technology is on the lunar surface-180°CThe extremely cold night and+120°CUnder the scorching sun, it still accurately perceives terrain changes and provides key data for lunar rover path planning. This is thanks to the team's development“Adaptive compensation technology for thermal stress”Through the built-in micro nano temperature sensor network and intelligent heating unit, the temperature field distribution inside the chip is adjusted in real time to ensure that the core circuit is always in the optimal working temperature range.

High reliability packagingAdopting ceramic packaging and airtight packaging technology to enhance the chip's resistance to vibration and impact, meeting the stringent mechanical environment requirements for spacecraft launch and in orbit operation. For example, during the launch process of the Long March series rockets, the sensor chip needs to withstand the impact of dozens of times the acceleration of gravity. By optimizing the packaging structure, Dishan Technology has improved the chip's impact resistance to20000gFar surpassing similar international products. Specifically, multiple layers of metal are used inside the package-Ceramic composite buffer structure, combined with viscoelastic damping material, effectively absorbs impact energy; At the same time, the airtight sealing chamber is filled with inert gas (a mixture of helium and argon) to prevent internal material failure due to pressure differences.

Low power consumption and long lifespanOptimize circuit design, achieve micro watt level power consumption, and extend the service life of satellite long-period mission equipment. For example, in the construction of low Earth orbit communication satellite constellations, Dishan Technology's low-power sensor chip extends the service life of satellite batteries15%Significantly reduced the operating costs of the constellation. The team innovatively adopts“Time-sharing wake-up”Working mode, throughAIThe algorithm predicts the threshold for changes in key parameters, activates high-precision measurement modules only during high-risk periods, and maintains ultra-low power standby mode for the rest of the time. The average annual power consumption of a single chip is insufficientonemilliwatt.

Multidimensional perception empowers aircraft“Intelligent Center”

The sensor chips of Dishan Technology cover multiple dimensions such as pressure, temperature, acceleration, angular velocity, vibration, and gas composition, and are widely used in various aircraft systems to create solutions for spacecraft“holographic perception”Ability to possess human like qualities“sense”The system captures real-time flight status and environmental changes.

Flight attitude and navigation control

high precisionMEMSGyroscope and accelerometer chips can sense the attitude angle, angular velocity, and linear acceleration of the aircraft in real time, providing core data for inertial navigation systems. Accurately adjust flight attitude in complex airflow to ensure flight safety. This chip adopts“Dual redundant gyroscope array+Adaptive filtering algorithm”Improve the accuracy of attitude angle measurement to0.01°Within, the dynamic response speed reaches1kHzEven in strong turbulent environments, it can still stably output data. This high precision enables more stable heading during flight, reduces turbulence caused by airflow interference, and improves passenger comfort and flight safety. In the Beidou satellite networking mission, these chips also play an important role in helping satellites achieve nanometer level attitude adjustment, greatly improving navigation accuracy, reducing positioning errors from meters to centimeters, and providing more accurate services for global users.

one       Cabin Environment and Life Support

In manned space missions, gas concentration sensor chips monitor the real-time content of oxygen, carbon dioxide, and harmful gases (such as ammonia and formaldehyde) in the cabin with an accuracy ofppmGrade. For example, in the Shenzhou manned spacecraft, the sensor system can adjust the cabin pressure and gas composition in real time to ensure the safety of astronauts' breathing. The sensor chip quickly detects sudden changes in gas concentration through electrochemical principles, and combines laser spectroscopy analysis technology to achieve high-precision quantitative detection, effectively identifying and responding to small changes in gas concentration, ensuring the health of astronauts during long-term missions. The core lies in“electrochemistry-Optical dual-mode sensing technology”It can quickly respond to gas concentration changes through electrochemical cells and achieve high-precision quantitative detection through laser spectroscopy analysis; The temperature and humidity sensors control the temperature fluctuations inside the cabin through closed-loop control±0.5℃Within, maintain humidity at40%-60%Human comfort zone. This sensor adopts“Nano porous material moisture absorbing layer+Infrared temperature measurement unit”It can still maintain high sensitivity and long-term stability in microgravity environment.

Cabin Environment and Life Support

In manned space missions, gas concentration sensor chips monitor the real-time content of oxygen, carbon dioxide, and harmful gases (such as ammonia and formaldehyde) in the cabin with an accuracy ofppmGrade. For example, in the Shenzhou manned spacecraft, the sensor system can adjust the cabin pressure and gas composition in real time to ensure the safety of astronauts' breathing. The sensor chip quickly detects sudden changes in gas concentration through electrochemical principles, and combines laser spectroscopy analysis technology to achieve high-precision quantitative detection, effectively identifying and responding to small changes in gas concentration, ensuring the health of astronauts during long-term missions. The core lies in“electrochemistry-Optical dual-mode sensing technology”It can quickly respond to gas concentration changes through electrochemical cells and achieve high-precision quantitative detection through laser spectroscopy analysis; The temperature and humidity sensors control the temperature fluctuations inside the cabin through closed-loop control±0.5℃Within, maintain humidity at40%-60%Human comfort zone. This sensor adopts“Nano porous material moisture absorbing layer+Infrared temperature measurement unit”It can still maintain high sensitivity and long-term stability in microgravity environment.

Cabin Environment and Life Support

In manned space missions, gas concentration sensor chips monitor the real-time content of oxygen, carbon dioxide, and harmful gases (such as ammonia and formaldehyde) in the cabin with an accuracy ofppmGrade. For example, in the Shenzhou manned spacecraft, the sensor system can adjust the cabin pressure and gas composition in real time to ensure the safety of astronauts' breathing. The sensor chip quickly detects sudden changes in gas concentration through electrochemical principles, and combines laser spectroscopy analysis technology to achieve high-precision quantitative detection, effectively identifying and responding to small changes in gas concentration, ensuring the health of astronauts during long-term missions. The core lies in“electrochemistry-Optical dual-mode sensing technology”It can quickly respond to gas concentration changes through electrochemical cells and achieve high-precision quantitative detection through laser spectroscopy analysis; The temperature and humidity sensors control the temperature fluctuations inside the cabin through closed-loop control±0.5℃Within, maintain humidity at40%-60%Human comfort zone. This sensor adopts“Nano porous material moisture absorbing layer+Infrared temperature measurement unit”It can still maintain high sensitivity and long-term stability in microgravity environment.

Independent innovation, building a security barrier for the aerospace supply chain

Against the backdrop of increasing uncertainty in the global supply chain, the autonomous controllability of key chips has become a strategic requirement for the development of aerospace security. Dishan Technology Persists“from0to1”Our independent innovation path aims to achieve full chain localization from chip design, chip manufacturing to testing and verification, breaking the monopoly of foreign technology and providing safe, reliable, and replaceable core component choices for China's aerospace engineering. Dishan Technology breaks through the foreign technology blockade and has developed a quartz flexible accelerometer chip with an accuracy of up to1μgFill the domestic gap; In the field of radiation resistant chips, the team has developed a reinforced versionCMOSProcess improves the total dose tolerance of the chip to100Krad(Si)To reach the international advanced level.

Looking to the future: Connected to the sky, let's explore deep space together

Facing the future, Dishan Technology will continue to promote technological iteration and scene expansion of sensor chips to achieve“More intelligent, precise, and integrated”For the goal. We will enhance the autonomous sensing capability of chips by introducing artificial intelligence algorithms, using advanced nanomanufacturing technology to improve accuracy, and promoting seamless integration of multi-sensor data to create a space and aviation industry“Perceived cornerstone”：

Promote the upgrading of chip intelligence and edge computing capabilities, and develop built-inAIIntelligent sensors for algorithmsSoCChips enable autonomous decision-making and data preprocessing on board, reducing the burden of spacecraft data transmission. For example, in a Mars rover, intelligent sensors can analyze real-time dust storm environmental parameters, autonomously adjust detection modes, and reduce ground control dependence; Expand applications in emerging fields such as deep space exploration, space station construction, and low orbit constellations, such as developing dust storm resistant micro meteorological sensors for Mars probes (which can withstand dust storms)200m/sWind speed and-120℃Low temperature),

Integrated perception system of heaven and earth, Build“perception—communication—calculate”Integrated onboard system solution, creating spacecraft“intelligent brain”For example, deeply integrating sensor chips with satellite payloads and onboard computers to achieve autonomous planning and execution of tasks in orbit. For example, in the intelligent operation and maintenance system of the space station, sensor networks andAISystem collaboration enables autonomous diagnosis of equipment failures in the cabin and generation of maintenance plans, improving operational efficiency50%；

Green Aerospace and Sustainable DevelopmentDevelop environmentally friendly sensor materials (such as biobased packaging materials and low-energy manufacturing processes) to reduce carbon emissions throughout the lifecycle of aerospace chips and assist in the green transformation of the aerospace industry. For example, the team is researching biodegradable polylactic acid packaging materials, which are expected to reduce carbon emissions in chip manufacturing30%.

Although the chip is small, it carries the dream of flying into space. From the roar of rocket launches to the quietness of satellite orbits, from the trajectory of lunar rovers rolling over lunar soil to the rhythm of life inside space station cabins, the sensor chips of Dishan Technology have always silently played a role“clairvoyance”“Shunfeng Ear”The function. The company always adheres to“Craftsmanship in casting cores, serving the country with technology”To fulfill our mission, we will embed every small sensor chip into the bloodline of major national weapons, providing a solid sensing foundation for the aerospace industry. In the future, with continuous technological breakthroughs and expanding scenarios, Dishan Technology will join hands with aerospace professionals, using chips as bridges to connect heaven and earth, and perception as wings, to explore deep space together and write about China“core”The magnificent chapter of strength guarding the sky. On the journey of this vast sea of stars, Dishan Technology will use innovation as the pen and responsibility as the ink, making China's intelligent sensor chips the eternal coordinates for human exploration of the universe.