The boss of the world’s biggest computer chipmaker, Nvidia, has promised the company will shell out “several hundred billion” dollars to make semiconductors and other electronics in the US over the next four years.The comments from Jensen Huang illustrate how the California-headquartered AI chipmaker is remodelling its supply chain away from Asia amid unpredictable tariff threats by Donald Trump.The chief executive, who also co-founded Nvidia, told the Financial Times: “Overall, we will procure, over the co ...