Building and operating a fab is an extremely difficult and expensive task that will take at least 5-10 years to bear fruit. That makes it a high-risk venture wh

Building and operating a fab is an extremely difficult and expensive task that will take at least 5-10 years to bear fruit. That makes it a high-risk venture which is hard to sell to the board and investors. More importantly, the new chip production lines are dependent on hyper-specialized EUV lithography systems that only company is able to manufacture (ASML). ASML has their own limits to production too.