Senator Chuck Schumer of New York announced the award and said the money would go towards building two fabs in New York by 2030 and one in Idaho.
US President Joe Biden is expected to make an announcement about the award on Thursday when he visits Syracuse, New York.
Syracuse is where Micron has said it intends to build up to four fabs over the next two decades at a cost of $100 billion.
Last week New York Governor Kathy Hochul said funding from the Chips Act would secure a $100 billion investment in the state.
Major Chips Act awards have now gone to Intel, TSMC, Samsung and Micron. In addition to the grants, the firms qualify for a 25% tax credit on the cost of building fabs.
