Outrageous compensation packages. Last figure I read, they've already poached 20% of Taiwan's semi engineers over the years. That's before recent initiatives to compensate foreign workers 3x-5x salary. They're flying in Korean specialists on daytrips to accommodate their desires to still live in Korea, building churches on campuses etc. Basically what western companies did in the 90s to entice foreign specialists to work in China, a lot of cash and allure of royal treatment i.e. specifically because they won't be equals. Work in a nice tier1 city for 5-10 years and retire or naturalize / work in the west. Semi engineers are project paperclip tier assets in the coming years, they're get work and fast-track citizenship considerations regardless of their past affiliations and most likely, because of it.