Earlier quoted context omitted.
There's nothing magical about innovation that requires it to be located in the US. Why do you think a foreign company should relocate to the US?
Transistors, microchips and fabs were all born and thrived in USA. One would think USA would have first mover advantage because this is very very hard to replicate tech but for some reason, fabs got completely eradicated from USA.
There exists extremely high-tech sector called "Semiconductor Capital Equipment Industry". All the instruments and equipment involved in deposition, lithography, etch and clean, inspection, metrology, and prosess control is super expensive.
Most of that technology is in the hands of Japanese (Nikon, Canon, Hitachi High-Technologies,Tokyo Electron and too many others to name), ASML Holding is big European player and largest supplier of photolithography systems. American companies involved are Applied Materials (their Semiconductor Systems), Lam Research and KLA-Tencor.