Micron Technology on Monday broke ground on a $15 billion factory in Boise, Idaho, and said it would announce another new U.S. factory soon, according to Reuters.

"We are in the final stages of another high-volume manufacturing site that will be announced in the coming weeks," said Micron Technology CEO Sanjay Mehrotra.

The two factories will produce DRAM chips used in data centers, personal computers and other equipment. Once operational, the U.S. factory will account for 40% of Micron's global DRAM production, up from 10% now. The Boise plant will be operational in 2025.