Micron Technology said on Thursday it plans to invest more than $250 billion in the U.S. through 2035, driven by surging demand for memory chips in the AI era and President Donald Trump's push to bolster domestic chip production. The new investment plan represents a jump from the $200 billion that Micron announced last June, which was already increased by $30 billion from its original spending plans. Shares of Micron were up about 8% in early trading, adding to a more than 200% surge in value so far this year.