China's Lithography Breakthrough Sends Chip Stocks Lower While Experts Question Impact

An employee works at a lithography tool for 300mm wafer manufacturing at the new Smart Power Fab of German semiconductor manufacturer Infineon Technologies AG in Dresden, eastern Germany, on June 10, 2026. (Credit: Jens SCHLÜTER/AFP)

KEY POINTS

• China's Shanghai Aishengna Electronic Technology Group has begun producing domestic immersion DUV lithography machines for major Chinese chipmakers, pressuring semiconductor stocks.
• While domestic immersion DUV offers Beijing a modest buffer against Western sanctions, mastering DUV does not bridge the decade-long gap to EUV technology required for advanced AI chips.
• China's lithography progress comes against a history of industrial espionage targeting ASML.