Shenzhen Ruijun Semiconductor Co., Ltd. (Ruichips) is a national high-tech enterprise specializing in the R&D, production and sales of power semiconductors. The company is located in the New Material Port Park of Changyuan, Nanshan Science and Technology Park, Shenzhen. It currently has more than 80 employees, including R&D and technical support personnel account for 45%; the company has grown rapidly in the past ten years since its establishment, with annual sales exceeding hundreds of millions of yuan. Shenzhen Ruijun Semiconductor occupies a leading position in other application fields. Shenzhen Ruijun Semiconductor is committed to new product research and development, and continues to update/optimize new processes and new technologies. It currently has three major product lines of Trench MOSFET/SGT MOSFET/Super Junction MOSFET and hundreds of models. A total of 18 national invention patents have been obtained, especially Ruijun's original TO-220 internal insulation packaging technology, which has completely solved the technical difficulties in heat dissipation and assembly for end customers.