This is correct. Taiwan has a huge pool of silicon engineers and their salaries have roughly stayed stable over the years. Interestingly, because of this, a lot of engineers have been moving to China to seek greener pastures (make more money) [1].

[1] Taiwan’s brain drain: semiconductor engineers head to China, https://www.ft.com/content/6eab0c1c-167f-11ea-9ee4-11f260415...

Edit: Original article was Taiwan loses 3,000 chip engineers to 'Made in China 2025' (https://asia.nikkei.com/Business/China-tech/Taiwan-loses-3-0...)