Huawei Technologies unveiled a new chip architectural workaround, the Tau (τ) Scaling Law, which they claim will allow them to achieve transistor density equivalent to a 1.4-nanometer process by 2031. This advancement would significantly narrow the gap with leading global semiconductor manufacturers and is a major step towards China's semiconductor self-sufficiency, according to analysts like Gary Ng, senior economist at Natixis Corporate and Investment Bank.
The key to this breakthrough, championed by He Tingbo, chairwoman of the Huawei Scientist Committee and president of its semiconductor business department, is that it would eliminate the need for cutting-edge extreme ultraviolet (EUV) lithography machines. These advanced tools are crucial for manufacturing chips at 3nm nodes and below, and their export to China is currently restricted by US-led sanctions, making this development a direct challenge to those controls.
This new chip design principle, which focuses on boosting transmission speed rather than solely shrinking semiconductors, aims to enable Huawei to overcome US export controls. The company has been proactively investing, injecting approximately $13.7 billion into its semiconductor division since sanctions began in 2019, and has invested in over 60 Chinese chip firms to build a domestic ecosystem. Huawei's revenues are also rebounding, nearly reaching pre-sanction levels, at approximately $94 billion in 2025 compared to $99 billion in 2018. If proven, this technological leap promises significant performance improvements for both smartphone chips and artificial intelligence computing systems.
Analysts have described this development as a potential "DeepSeek moment" for China, altering its trajectory in the chip race and giving Beijing new leverage in its tech disputes with Washington. However, some, like Gary Ng, caution that the new law still needs to be "tested in practice" to validate its claims.
