Recently, Nanjing Baishi Electronic Technology Co., Ltd. completed the A+ round of financing. Many well-known institutions participated in the investment, and China Venture Capital served as financial advisor.
Baishi Electronics was founded in 2019 by a number of senior experts with decades of experience in third-generation semiconductor epitaxy. The core team has full-stack capabilities such as epitaxial process development, yield assurance, and equipment improvement. The company's first production line is located in Pukou District, Nanjing City. It will be put into production in 2021. The current annual production capacity reaches 50,000 pieces, and its customers are mostly global giants and domestic leaders. The company plans to build a second-phase production line in the Yangtze River Delta in the near future, with a planned production capacity of 280,000 wafers per year, to build the country's leading automotive-grade third-generation semi-epitaxial wafer manufacturing plant.
Baishi Electronics relies on its team's strong mass production experience and high-quality manufacturing capabilities to provide six-inch and eight-inch epitaxial wafers to meet the market demand for power devices in the new era. In addition to standard specification epitaxial wafers, Baishi Electronics can provide customized specification epitaxy services and key processes required for device development based on special application market needs.
The thickness, concentration and number of surface defects of the silicon carbide epitaxial layer will affect the electrical characteristics of the device, resulting in a loss of silicon carbide device yield. At present, general epitaxy technology can only control killer defects with large surface sizes (such as triangular defects, carrot defects, linear defects, comet defects, etc.), with a density of about 1/cm2, and the number of micro-pits on the surface. Up to more than 5,000 pieces per piece. Baishi's unique epitaxial technology can effectively control the number of surface defects to a density of less than 0.4/cm2, and surface micro-pits (micro-pits) < 1,000/wafer. It also has low fatal defects and surface micro-pits. hole advantage. In 2023, Baishi epitaxial processes and technical levels will continue to improve. 3,300V silicon carbide epitaxial wafers will achieve high-yield and high-quality production, with product thickness uniformity of 1.18% and concentration uniformity of 1.32%, and will be stably shipped to global rail transit customers. Ultra-high voltage (6,500V and above) epitaxial technology continues to make breakthroughs, and defect control has reached the internationally advanced level.