Huawei Technologies’ unveiling of a chip architectural workaround to bypass US sanctions marks a major step towards China’s semiconductor self-sufficiency, giving Beijing powerful new leverage in its tech tug of war with Washington, analysts say. The Chinese tech giant captured global attention on Monday by introducing the new Tau (τ) Scaling Law, which it said lay the groundwork for Huawei to achieve transistor density equivalent to a 1.4-nanometre process in high-end chips by 2031. If proven,...