Chinese Chip Start-up Launches World’s First 8-Inch Pilot Production Line for 2D Semiconductors

Shanghai-based start-up Yuanjiwei has unveiled an 8-inch pilot production line dedicated to two-dimensional (2D) semiconductors, marking a significant transition from laboratory research to industrial validation. This development represents a strategic move by China to bypass U.S. export restrictions on advanced lithography equipment by exploring alternative materials that offer atomic-scale thickness and lower power consumption. For the global semiconductor sector, this initiative highlights the intensifying race to find viable successors to traditional silicon-based architectures as they approach their physical scaling limits.

Shanghai-based Yuanjiwei announced the launch of its 8-inch pilot line, which it claims is the first of its kind globally to support the entire manufacturing process for 2D materials, from preparation to final chip integration and tape-out. According to company chairman Bao Wenzhong, 2D semiconductors utilize materials with atomic-scale thickness, allowing for smaller transistors without the need for the increasingly complex structures required by conventional silicon. This technological shift is intended to address the physical limitations of 3D silicon chips, particularly the issue of electrical leakage that occurs as transistors shrink and power consumption rises.

The company has established an ambitious roadmap to achieve technological self-sufficiency and circumvent the U.S. ban on extreme ultraviolet (EUV) lithography machines. Yuanjiwei aims to establish a manufacturing process equivalent to a 90-nanometer silicon node by the end of 2024, with the ultimate goal of producing 5-nanometer equivalent chips by 2029 without relying on EUV technology. Fan Hao, a director at the Shanghai Municipal Commission of Science and Technology, noted that 2D chips are a promising direction for next-generation hardware, as they offer ultra-low leakage and can be combined with 3D stacking to significantly enhance memory capacity.

The transition to 2D semiconductors is viewed as a critical step in China's drive to secure its core technology supply chain against international trade pressures. However, industry experts cited in the company's statement cautioned that the complexity of commercializing 2D materials requires deep collaboration across the entire ecosystem, including material suppliers, equipment manufacturers, and testing facilities. While the pilot line marks a milestone in engineering validation, the success of the 2029 goal will depend on the domestic industry's ability to build a comprehensive and fully independent supply chain capable of matching the performance of advanced-node silicon.