Inside Apple’s push to build all-American chip

Wall Street Journal: As large as TSMC’s new Arizona plans are, they trail its Taiwan operation in both volume and technology. TSMC has four facilities in Taiwan that make more than 100,000 chip wafers a month, plus seven smaller ones; the Arizona site won’t reach similar volumes until all six fabs are built, the company has said.

And it is in Taiwan where it makes its most advanced chips, which today have transistors as small as two nanometers. The smaller the transistors, the more computing power can be packed onto a chip. In Arizona, it makes four and five nanometer chips; two nanometer chips won’t be made there till 2030…