For over five decades, the tech world has relied on Moore’s Law—shrinking physical transistors to get faster, more efficient chips. But as silicon hits its absolute physical and economic limits, that classic path is hitting a dead end. At the 2026 IEEE International Symposium on Circuits and Systems (ISCAS), Huawei challenged this status quo. During a keynote titled "New Semiconductor Path in Practice," He Tingbo, President of Huawei’s chip design division, introduced a brand-new paradigm: the Tau ($\tau$) Scaling Law. Instead of focusing purely on physical dimensions, Huawei is shifting the industry toward time scaling, aiming to drive breakthroughs in chip density and speed by systematically compressing signal propagation delays.

To bypass traditional bottlenecks, Huawei’s new framework orchestrates a highly integrated, multi-level optimization strategy across the entire computing stack. At the underlying physical layer, engineers are minimizing resistance and capacitance to eliminate micro-level signal delays. At the circuit level, Huawei introduced an architectural framework called LogicFolding, which throws out rigid, traditional layout boundaries to drastically shorten critical-path wiring and pack more performance into the same footprint. Higher up the stack, full-stack software and silicon integration maximize parallel processing, while a new UnifiedBus interconnect protocol virtually eliminates communication lag across massive AI computing clusters.

This isn't just academic theory; it is already a proven reality. Over the past six years, Huawei has quietly designed and mass-produced 381 distinct chips using these exact Tau Scaling principles. The first major commercial test lands in Fall 2026, when Huawei’s upcoming Kirin smartphone chips will officially debut with the performance-boosting LogicFolding architecture. Looking ahead, Huawei projects that by 2031, its high-end processors engineered under the Tau Scaling Law will achieve a transistor density equivalent to a cutting-edge $14\text{ \AA}$ ($1.4\text{ nm}$) process without relying solely on traditional manufacturing shrinks. 

Ultimately, He Tingbo emphasized that navigating this post-Moore’s Law era requires a team effort, inviting global scientists, engineers, and industry partners to collaborate on the Tau Scaling framework to drive the sustainable development of computing power.