The Various Applications of Silicon Carbide
Silicon carbide (SiC) possesses remarkable characteristics—including a wide bandgap, high breakdown electric field strength, high thermal conductivity, and a high electron saturation drift velocity—enabling it to meet the demanding device requirements of complex technological scenarios involving high temperatures, high power, high voltage, and high frequencies. It enjoys widespread application across numerous fields—such as power electronics, new energy vehicles, energy storage, intelligent manufacturing, photovoltaics, and rail transit—leading to the adage: “Silicon carbide is applicable to everything.”
Applications of Silicon Carbide in New Energy Vehicles
In the new energy vehicle sector, the application of silicon carbide technology is emerging as a pivotal factor in enhancing the performance of both electric and hybrid vehicles. By virtue of their high thermal conductivity, high breakdown electric field strength, and superior mechanical properties, silicon carbide devices significantly boost the efficiency and reliability of electric drive systems, charging systems, and energy management systems.
Applications of Silicon Carbide in Intelligent Driving and the Internet of Vehicles
Amidst the rapid advancement of intelligent driving and the Internet of Vehicles (IoV), silicon carbide technology—leveraging its exceptional performance—is gradually permeating critical areas such as sensor systems, data processing units, and communication modules, thereby significantly enhancing overall system performance and reliability.
Applications of Silicon Carbide in Photovoltaic Systems
In photovoltaic systems, core equipment—such as inverters, MPPT controllers, and energy storage conversion modules—imposes stringent requirements on power devices, demanding high efficiency, high voltage withstand capability, high-temperature operational stability, and miniaturization. Traditional silicon-based devices suffer from significant efficiency degradation in high-voltage and high-temperature environments, making it difficult for them to support the ever-increasing power density demands of modern photovoltaic power stations. Silicon carbide power devices, conversely, feature higher breakdown voltages, lower on-resistance, and faster switching speeds; these attributes allow them to significantly boost power conversion efficiency and reduce system heat generation, thereby simplifying thermal management designs and lowering overall system energy consumption.
Applications of Silicon Carbide in 5G Communications
In applications such as wireless communications and radar systems, radio-frequency (RF) devices serve as the core components for signal transmission and processing; consequently, their performance is critical to overall system stability. RF devices based on semi-insulating silicon carbide—distinguished by their wide bandgap characteristics—offer distinct advantages such as low signal loss, wide bandwidth, and high power density.
Applications of Silicon Carbide in Artificial Intelligence (AI)
Electrical power is fast becoming the latest bottleneck threatening the advancement of Artificial Intelligence (AI). Furthermore, behind the explosive growth in AI’s computational power, the escalating energy consumption is increasingly crowding out the energy resources required for normal societal usage.
Applications of Silicon Carbide in AR Glasses
AR glasses have emerged as a nascent market for SiC applications. Optical waveguides fabricated using SiC materials effectively address critical challenges in AR glasses—specifically narrow fields of view, rainbow artifacts, and thermal dissipation issues—by leveraging the material’s two key properties: high refractive index and high thermal conductivity.
Applications of Silicon Carbide in the Robotics Industry
Pan Yunbin, CEO of Jingneng Microelectronics, posits that the explosive growth of silicon carbide technology was initially driven by the charging revolution in new energy vehicles; the robotics industry is now poised to become the next critical application scenario for third-generation power semiconductors. Robotics and new energy vehicles share a high degree of similarity in their underlying technical architectures. Automotive-grade chips can be adapted for use in robotic applications, provided they are tailored to meet the specific and differentiated performance requirements of the robotics domain. Taking power semiconductors as an example: beyond automotive systems, their technical capabilities are equally applicable to the motor drive controllers found in robotic joints. This emerging robotics market is currently experiencing rapidly growing demand for highly efficient electrical power control solutions.