U.S. companies caught in crossfire of China chip crackdown

PALO ALTO, U.S./SEOUL/TOKYO — The impact of Washington tightening restrictions on advanced semiconductor technology exports to China is being felt at home.

California-based Applied Materials, a leading manufacturing equipment supplier, has downgraded its August-October earnings outlook, while fellow American equipment suppliers Lam Research and KLA have temporarily suspended support for some Chinese chipmakers.