When He Tingbo took the stage in Shanghai this week to unveil Huawei Technologiesโ Tau (ฯ) Scaling Law, the message was about more than a new chip development framework. It was also a statement, showing how the most prominent Chinese technology company to have been subjected to US sanctions wants to compete in semiconductors when access to the worldโs most advanced chipmaking tools remains restricted, and when the industryโs decades-old reliance on shrinking transistors is becoming more...