1. By the time this fab is in major construction a lot of the lessons learned for 5nm will be known and can more readily be implemented in the USA without splitting precious engineering resources to other countries.
2. 3nm will be the most expensive parts and sell at a premium, which will limit demand.
3. This carries some risk, so giving up the bleeding edge tech might not be the best idea.
1. By the time this fab is in major construction a lot of the lessons learned for 5nm will be known and can more readily be implemented in the USA without splitting precious engineering resources to other countries.
2. 3nm will be the most expensive parts and sell at a premium, which will limit demand.
3. This carries some risk, so giving up the bleeding edge tech might not be the best idea.