EDA=ECDA。93年，国产EDA低价卖全球，包括美国。后来，美国高质量EDA重霸全球市场，国产EDA停了十几年。现在捡起来要费很大功夫替换。
所谓“金刚石”，其实是很像金刚石的氮化鎵，也被称为第3代半导体，据有高功率、发光等特点，用于充电、爆发力、LED等，但不宜 x nm 精细芯片。几年前国内大宣传第3代半导体如何世界领先，没想到也会被卡脖子。
I applaud president Biden for executing a marvelous strategy against China. Of course we should give credit where it’s due. It was President Trump who started semiconductor war with China a few years back. But Biden has built on that and upped the game. This will be a modern-era Star War that bought the USSR to its knees during the Cold War. China, under its ambitious yet incapable leader Xi Jinping, will dump hundreds of billions of dollars to avoid its technical reliance on the US, will only find in the end all the money will be either wasted or embezzled by the corrupt CCP officers. With its resources all exhausted, China will not be a threat to Taiwan, the US or the world in general.
