What is Huawei Tau Scaling Law & LogicFolding?

Huawei's Tau Scaling Law and LogicFolding refer to a chip-scaling methodology that models transistor density gains through a scaling exponent and achieves additional density by folding logic circuitry into multiple stacked layers rather than only shrinking transistors within a single planar layer. The approach is positioned as a way to keep effective compute density increasing as traditional two-dimensional lithographic scaling reaches physical limits.