Earlier quoted context omitted.
Less likely but could. Chip fab is much more valuable than putting iPhones together.
Not being snarky here, but what is the benefit of a chip fab in Arizona, thousands of miles from the assembly lines where the chips will be used? I get why it would be important for niche (e.g. defense) applications, but is TSMC scale really needed?
1. Chips have a very high $/kg density, so logistics isn't go to change unit economics a lot. 2. These assembly lines are much easier to construct than chip fabs, so if there is any reason to keep the two close, it's not going to be a problem anyway.