Introduction: Ruichips (Shenzhen Ruijun Semiconductor) is a national high-tech enterprise specializing in the research and development, production, and sales of power semiconductors. The company is located in the New Material Port Park of Nanshan Science and Technology Park in Shenzhen, and currently has more than 80 employees, of whom 45% are related to research and development and technical support; In the past decade since its establishment, the company has rapidly grown and expanded, with annual sales exceeding hundreds of millions of RMB. It holds a leading position in application fields such as adapter fast charging, mobile fast charging, car charging, motor control, new energy, inverters, and lithium battery protection. Shenzhen Ruijun Semiconductor is committed to new product research and development, continuously updating/optimizing new processes and technologies. It currently has three major product lines: Trench MOSFET/SGT MOSFET/Super Junction MOSFET, with hundreds of models, and has obtained 18 national invention patents, especially Ruijun's unique TO-220 internal insulation packaging technology, which completely solves the technical difficulties of end customers in heat dissipation and assembly; Ruichips (Shenzhen Ruijun Semiconductor) official website: www.ruichips.com.