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The most important new semiconductor material for the 5G generation: SiC
Into the 5G generation, 5G products mostly have high power, high pressure, high temperature and other characteristics. Because traditional silicon (Si) raw materials cannot overcome the losses in high voltage and high frequency, they can no longer meet the technological needs of the new generation. This makes silicon carbide (SiC) is beginning to make its mark.
The advantages of electronic components made of SiC over Si mainly come from three aspects: reducing energy loss in the process of electrical energy conversion, easier miniaturization, and higher temperature and pressure resistance.
According to the Yole Développement report, the size of the SiC power semiconductor market will grow to $ 2 billion by 2024, with a CAGR of approximately 30% between 2018 and 2024. Among them, the automotive market is undoubtedly the most important driving factor, and its proportion in the SiC power semiconductor market is expected to reach 50% by 2024.
SiC's largest application market: automotive electronics
Because SiC can provide higher current density, it is often used to make power semiconductor components. According to Yole, the largest application market for SiC comes from automobiles. Compared with traditional solutions, solutions using SiC can make the system more efficient, lighter, and more compact.
At present, the applications of SiC components in new energy vehicles are mainly power control units (PCUs), inverters, and vehicle chargers.
Power control unit: This is the central nerve of the vehicle electrical system, which manages the flow direction and transmission speed between the electrical energy in the battery and the motor. Traditional PCUs are made of silicon, and the power loss when strong currents and high voltages pass through silicon transistors and diodes is the main source of power loss for hybrid vehicles. As for the use of SiC raw materials, the power loss in this process can be greatly reduced by about 10%.
Inverter: SiC is used in automotive inverters, which can greatly reduce the size and weight of the inverter, and achieve lightweight and energy saving. At the same power level, the package size of the full SiC module is significantly smaller than that of the Si module, about 43%, and the switching loss can be reduced by 75%.
Tesla Model 3 is a SiC inverter produced by ST and Infineon. It is the first car factory to integrate all SiC power modules in the main inverter.
Car chargers: SiC components are accelerating their penetration into the field of car chargers. According to Yole statistics, as of 2018, more than 20 automakers have adopted SiC SBD or SiC MOSFET components in their car chargers, and this market is expected to maintain a 44% growth by 2023.
SiC industry chain
The global SiC industry pattern shows the three strong positions of the United States, Europe and Japan. Among them, it is dominated by the United States, accounting for about 70% to 80% of the global SiC output value. The main companies are Cree, Transphorm, II-VI, Dow Corning.
In Europe, it has a complete SiC industry chain, including substrate, epitaxy, components and application industry chains. The main companies are: Siltronic, ST, IQE, Infineon, etc.
Japan is a leader in the development of SiC equipment and modules. The main companies are: Panasonic, ROHM Semiconductor, Sumitomo Electric, Mitsubishi Chemical, Renesas, Fuji Electric, etc.
Although China is involved, its development is still in its infancy, and its scale is far less than that of the three countries mentioned above. The Chinese plant currently has layouts in substrates, epitaxy and components. The main companies are: CLP, Tianke Heda, Tyco Tianrun, Shandong Tianyue, Dongguan Tianyu, Shenzhen Basic Semiconductor, Shanghai Junxin Electronics, Sanan Integration, etc.
The advantages of electronic components made of SiC over Si mainly come from three aspects: reducing energy loss in the process of electrical energy conversion, easier miniaturization, and higher temperature and pressure resistance.
According to the Yole Développement report, the size of the SiC power semiconductor market will grow to $ 2 billion by 2024, with a CAGR of approximately 30% between 2018 and 2024. Among them, the automotive market is undoubtedly the most important driving factor, and its proportion in the SiC power semiconductor market is expected to reach 50% by 2024.
SiC's largest application market: automotive electronics
Because SiC can provide higher current density, it is often used to make power semiconductor components. According to Yole, the largest application market for SiC comes from automobiles. Compared with traditional solutions, solutions using SiC can make the system more efficient, lighter, and more compact.
At present, the applications of SiC components in new energy vehicles are mainly power control units (PCUs), inverters, and vehicle chargers.
Power control unit: This is the central nerve of the vehicle electrical system, which manages the flow direction and transmission speed between the electrical energy in the battery and the motor. Traditional PCUs are made of silicon, and the power loss when strong currents and high voltages pass through silicon transistors and diodes is the main source of power loss for hybrid vehicles. As for the use of SiC raw materials, the power loss in this process can be greatly reduced by about 10%.
Inverter: SiC is used in automotive inverters, which can greatly reduce the size and weight of the inverter, and achieve lightweight and energy saving. At the same power level, the package size of the full SiC module is significantly smaller than that of the Si module, about 43%, and the switching loss can be reduced by 75%.
Tesla Model 3 is a SiC inverter produced by ST and Infineon. It is the first car factory to integrate all SiC power modules in the main inverter.
Car chargers: SiC components are accelerating their penetration into the field of car chargers. According to Yole statistics, as of 2018, more than 20 automakers have adopted SiC SBD or SiC MOSFET components in their car chargers, and this market is expected to maintain a 44% growth by 2023.
SiC industry chain
The global SiC industry pattern shows the three strong positions of the United States, Europe and Japan. Among them, it is dominated by the United States, accounting for about 70% to 80% of the global SiC output value. The main companies are Cree, Transphorm, II-VI, Dow Corning.
In Europe, it has a complete SiC industry chain, including substrate, epitaxy, components and application industry chains. The main companies are: Siltronic, ST, IQE, Infineon, etc.
Japan is a leader in the development of SiC equipment and modules. The main companies are: Panasonic, ROHM Semiconductor, Sumitomo Electric, Mitsubishi Chemical, Renesas, Fuji Electric, etc.
Although China is involved, its development is still in its infancy, and its scale is far less than that of the three countries mentioned above. The Chinese plant currently has layouts in substrates, epitaxy and components. The main companies are: CLP, Tianke Heda, Tyco Tianrun, Shandong Tianyue, Dongguan Tianyu, Shenzhen Basic Semiconductor, Shanghai Junxin Electronics, Sanan Integration, etc.