Major global semiconductor stocks rose on Tuesday after Nvidia announced plans to invest $100 billion in OpenAI.The deal between Nvidia and OpenAI is on a large scale. OpenAI plans to build and deploy Nvidia systems that require 10 gigawatts of power, which is equivalent to 4 million and 5 million graphics processing units (GPUs), according to Nvidia CEO Jensen Huang.The news sparked a rally on Wall Street, with positive sentiment flowing through to the global chip sector and especially touching companies w ...