https://blog.wongcw.com/2021/07/21/%e5%b7%b2%e9%80%b2%e5%85%a5%e6%9c%80%e5%be%8c%e8%aa%bf%e8%a9%a6%e9%9a%8e%e6%ae%b5%e7%89%b9%e6%96%af%e6%8b%89semi%e9%9b%bb%e5%8b%95%e5%8d%a1%e8%bb%8a%e5%8d%b3%e5%b0%87%e6%8a%95%e7%94%a2/