A significant development in China’s semiconductor industry was recently announced. A collaborative effort between the Shanghai Municipal Science and Technology Commission, Fudan University, and a startup called Yuanji Wei has led to the official launch of China’s first pilot production line for engineering verification of 2D semiconductors.
This represents a fundamentally different approach to chip manufacturing. For decades, the industry has followed Moore’s Law, relentlessly shrinking transistors made of silicon. However, as silicon transistors approach the scale of a few atoms, they hit physical limits like quantum tunneling, causing leakage and heat. The Western solution has been Extreme Ultraviolet (EUV) lithography machines—precisely the technology the US has sought to restrict from China.
Chinese researchers are tackling the problem from a different angle: changing the core material. Instead of silicon, this new path uses two-dimensional semiconductors, specifically Transition Metal Dichalcogenides (TMDs). These materials are astonishingly thin, just one or a few atoms thick. The concept is not about carving circuits into a block of material (like etching silicon), but about “growing” circuits atom-by-atom on this ultra-thin plane.
The potential advantages are substantial. Electrons can move with far less resistance, drastically reducing power consumption and heat generation. Crucially, because the base material is already at the atomic scale, it may not require the most advanced and restricted EUV lithography machines. The project’s lead researcher suggests that up to 80% of traditional chip manufacturing steps could be eliminated. This pilot line aims to use fully domestic, mature DUV lithography equipment to eventually produce chips with performance equivalent to the most advanced silicon-based nodes.
The roadmap is ambitious. The initial goal for 2026 is to validate the process and produce chips equivalent to 90nm silicon chips. By 2027, the target is 28nm equivalence, a crucial node for many industrial and automotive applications. The plan aims for 5/3nm equivalence by 2028 and, ultimately, 1nm-level chips using entirely domestic equipment by 2030. Success in this 2D semiconductor path could create a completely independent chip ecosystem for China, circumventing current technological blockades.
Beyond the technical specs, this effort highlights a strategic shift. While the US focuses on controlling existing technology nodes (like EUV), China is investing heavily in potentially disruptive, alternative pathways. This mirrors patterns seen in other industries, like electric vehicles. The development of this pilot line in Shanghai’s Pudong district—reportedly built in just 100 days—also underscores the high-level support and sense of urgency behind this national project. While significant challenges in yield, scaling, and building a software ecosystem remain, this represents a serious scientific and engineering endeavor with profound strategic implications.