https://blog.wongcw.com/2019/08/01/%e4%b8%89%e6%98%9f%ef%bc%9a6nm%e4%bb%8a%e5%b9%b4%e9%87%8f%e7%94%a25nm-4nm%e4%bb%8a%e5%b9%b4%e5%ae%9a%e5%9e%8b/
三星:6nm今年量產5nm/4nm今年定型