https://blog.wongcw.com/2020/05/07/42%e6%ac%beamd-nvidia%e9%a1%af%e5%8d%a1%e7%9c%9f%e5%af%a6%e5%8a%9f%e8%80%97%e6%b8%ac%e8%a9%a6%ef%bc%9a7nm%e6%9e%9c%e7%84%b6%e5%b9%b9%e4%b8%8d%e9%81%8e12nm/