The development of electric vehicles is the main factor driving the development of the high-power Si and SiC market. As a mainstream semiconductor technology, Si has a mature low-cost solution, and its high-power application performance can be improved through technological improvement. However, SiC-IGBT still faces many challenges on the road of large-scale application, which has become a pain point for car companies, global leading suppliers and semiconductor suppliers. For example, at present, the production cost of SiC semiconductor is more than 10 times that of Si semiconductor. Mature, the global production capacity of SiC is limited, which is not enough to support the full application of the electric vehicle industry. The production lines for the production of SiC and Si semiconductors cannot replace each other. When the technical route is not completely clear, semiconductor suppliers lack full investment in SiC production lines. ‘s motivation.