China Reportedly Develops Domestic EUV Lithography Prototype, Signaling Major Semiconductor Autonomy Shift

The Chinese state-backed semiconductor consortium has successfully built and begun testing a domestic extreme ultraviolet (EUV) lithography prototype, demonstrating the ability to generate the 13.5-nanometer light required for advanced chipmaking. The consortium, which includes researchers from Huawei and former engineers from the Dutch firm ASML, is currently testing the system in a secure Shenzhen facility. The next critical milestone for the project is the production of functional silicon, a target the consortium aims to reach between 2028 and 2030.[1][2]

ASML has held an absolute global monopoly on EUV lithography since the technology's commercialization, controlling the only machines capable of manufacturing the world's most advanced microchips. Export controls imposed by the United States and its allies have blocked Chinese foundries from purchasing these $400 million systems, aiming to freeze the country's artificial intelligence and high-performance computing capabilities at older nodes.[1][5]

The Chinese prototype diverges from ASML's established architecture to bypass restricted supply chains. While ASML generates EUV light by vaporizing tin droplets with a high-powered carbon dioxide laser—a method known as Laser-Produced Plasma—the Shenzhen team utilized a Laser-Induced Discharge Plasma approach developed in collaboration with the Harbin Institute of Technology.[1][5]

Early testing indicates the domestic light source has achieved an output of 100 to 150 watts. While this falls short of the 300 to 600 watts delivered by ASML's current commercial systems, it represents a functional baseline capable of exposing photoresist on silicon wafers.[1]

The EUV development follows a broader pattern of domestic substitution within the Chinese semiconductor industry. In late 2026, Shanghai Aishengna Electronic Technology Group began mass-producing immersion deep ultraviolet (DUV) lithography machines. The company plans to deliver 20 units by 2027 to major domestic chipmakers, including Semiconductor Manufacturing International Corporation (SMIC) and ChangXin Memory Technologies.[2]

Until now, Chinese foundries have relied on these older DUV machines combined with complex multipatterning techniques to produce 7-nanometer and 5-nanometer chips. However, passing a single silicon wafer through the lithography machine four times drastically reduces yield and increases costs, creating a hard physical and economic ceiling that only EUV can break.[1][5]

Generating the light is only the first hurdle for the Shenzhen consortium. The prototype must now integrate high-precision optical systems capable of directing the 13.5-nanometer wavelength without absorbing it. ASML relies on mirrors manufactured by Germany's Carl Zeiss, which are among the flattest surfaces ever engineered; replicating this optical stack remains the most significant technical barrier.[1][5]

The realization that Western export controls have not permanently halted Chinese semiconductor advancement has triggered a reassessment across global markets. "This is not a commercial victory against ASML, but it is a proof of concept that China can build the machine without Western permission," reports the Dhaka Tribune.[1]

The Shenzhen facility will spend the next two years attempting to qualify the prototype for trial production. If the consortium can stabilize the light source and achieve commercial yields by the end of the decade, the strategic leverage built on the assumption of an unbreakable Western semiconductor monopoly will fundamentally erode.[1][3][4]