Huawei's Tao Law: LogicFolding Bypasses Lithography, 55% Density Gain on Fixed Node
At ISCAS 2026, Huawei's He Tingbo unveiled the Tao Law, replacing geometric scaling with temporal optimization targeting tau (characteristic time). LogicFolding vertically stacks active layers to shorten critical paths, achieving 55% transistor density increase and 41% energy efficiency gain on a fixed node. Kirin 2026 reaches 3.1GHz; Ascend series will adopt LogicFolding. The roadmap projects equivalent 1.4nm density by 2031, fundamentally challenging Moore's Law's lithography dependency.
