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Huawei's Tau Law proposal is rapidly redirecting attention across China's semiconductor industry away from pure lithography competition and toward advanced packaging, 3D stacking, optical interconnects, and system-level architecture design.

Huawei's Tau Law proposal is rapidly redirecting attention across China's semiconductor industry away from pure lithography competition and toward advanced packaging, 3D stacking, optical interconnects, and system-level architecture design. Some subscribers prefer to save their log-in information so they do not have to enter their User ID and Password each time they visit the site.

When Huawei unveiled its "Tau (τ) Scaling Law" at ISCAS 2026 in Shanghai, the announcement signalled more than another chip architecture update. It marked China's most ambitious attempt yet to redefine how semiconductor performance is measured in the post-Moore era.