Huawei Proposes Tau Scaling Law as Moore’s Law Reaches Its Limits
The semiconductor industry is approaching a major turning point. Companies like Samsung, TSMC, and Intel continue to push chip technology forward. However, experts now admit that Moore’s Law is losing its relevance due to physical constraints.
The End of Moore’s Law
Gordon Moore introduced his famous law in 1965. It predicted that the number of transistors on a chip would double every two years. This principle drove massive improvements in computing power for decades.
Yet today, the situation has changed. At the 2nm process level, real transistor density gains have slowed significantly. Physical limits at the atomic scale create serious challenges. Quantum effects make it extremely difficult to shrink transistors further. As a result, companies now rely on new packaging and stacking methods to boost performance.
Huawei Introduces Tau Scaling Law
Huawei has presented a fresh approach to overcome these limitations. He Tingbo, President of Huawei’s Semiconductor Business Department, unveiled the Tau Scaling Law at the 2026 IEEE International Symposium on Circuits and Systems.
This new principle shifts focus from geometric scaling to time scaling. Instead of packing more physical transistors onto a chip, the Tau Scaling Law emphasizes reusing existing transistors more efficiently over time.
How Tau Scaling Works
The concept is simple yet powerful. Traditional chips perform logic steps using separate physical gates. In contrast, Tau Scaling reuses the same flexible gates multiple times within a single processing cycle.
Huawei calls this technique LogicFolding. It dynamically adjusts how gates operate using advanced software-hardware coordination. Consequently, systems can achieve higher performance without needing constant physical shrinkage.
Ambitious Future Plans
Huawei aims to deliver impressive results with this approach. The company plans to design chipsets based on the Tau Scaling Law by 2031. These chips are expected to deliver transistor density equal to a 1.4nm process node.
This innovation could extend the progress of semiconductor technology well beyond current physical boundaries. It offers a promising path for continued advancement in computing power, artificial intelligence, and electronic systems.
The industry will closely watch how Huawei and other players develop this new scaling direction in the coming years.