This year, semiconductor stocks have been on a bull run as investors flock to anything to do with artificial intelligence (AI) and its unending demand for more data centers. Four years ago, the memory chip market had become glutted due to suspected excess capacity and dropping prices. Now, things look like they're turning around. Investors are realizing that memory chips play a key role in AI servers and that state-of-the-art graphics processors require high-bandwidth memory (HBM) solutions. One of the bi ...