U.S. Pours Money Into Chips, but Even Soaring Spending Has Limits

In September, the chip giant Intel gathered officials at a patch of land near Columbus, Ohio, where it pledged to invest at least $20 billion in two new factories to make semiconductors. A month later, Micron Technology celebrated a new manufacturing site near Syracuse, N.Y., where the chip company expected to spend $20 billion by the end of the decade and eventually perhaps five times that. And in December, Taiwan Semiconductor Manufacturing Company hosted a shindig in Phoenix, where it plans to triple its investment to $40 billion and build…