America Is Behind on Memory Chips—and Tariffs Threaten to Make Things Harder

A new CSET piece in The Wall Street Journal says the U.S. is still heavily dependent on memory chips made overseas, even as demand tied to AI keeps pushing prices up. That mix is awkward: the country wants more domestic semiconductor production, but proposed tariffs could make that effort harder instead of easier.

CSET’s Hanna Dohmen says the risk is not abstract. Heavy reliance on foreign-produced memory chips leaves the U.S. open to supply disruptions that could hit businesses, national defense and the country’s position in a technology that matters for AI.

Memory chips are not the flashy part of the semiconductor story. They don’t get the same attention as processors, but they are central to how modern systems store and move data. If those chips are mostly coming from abroad, any disruption lands far beyond a single factory floor.

The tension here is simple and uncomfortable. Policymakers want more chips made at home, but tariffs can raise costs just as the market is already getting pricier because of AI demand. That is not a clean path to resilience; it is a reminder that supply chains do not become sturdier just because the politics sound tougher.