With the increasing demand for environmental protection and energy conservation in the world, new energy vehicles have sprung up in recent years, leading the new development of the automotive industry. The power source of new energy vehicles has changed from the original "oil" to "electricity". Therefore, high-power power electronics has become an essential component of new energy vehicles, and it has an irreplaceable role in new energy vehicles. At present, the automotive IGBT field is almost monopolized by international manufacturers such as Infineon and Japan Fuji. It is urgent for domestic manufacturers to break through the core technology of IGBT and take the initiative, so that the domestic new energy car can develop better and healthier, and realize the Chinese automobile industry. Beyond, take off!