China's EUV Prototype and DUV Multi-Patterning Strategy vs. Sanctions

rohanpaul_ai · x · 2026-08-17

Analysis of China's progress in lithography technology highlights the construction of a crude EUV prototype in Shenzhen capable of generating EUV light, though precision optics remain a hurdle. The article argues that China does not need an ASML-class scanner to ease the chokepoint, as progress can come subsystem by subsystem. Furthermore, leveraging existing DUV fleets with multi-patterning allows companies like SMIC and Huawei to produce advanced logic chips without EUV, accepting higher costs and defects for strategic autonomy.

Related event: China Builds EUV Prototype in Shenzhen, Litho Ban Eroded(2 posts)→

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