High-speed rail does not have such high requirements for the process, and can be used for 90-128 nanometers.
At present, the most advanced domestic chip is 14nm. 7nm is under development and is expected to be mass-produced by the end of the year. I hope Huawei can use it. Chip development has recently been blocked by cards, various technologies, and imported equipment can not be bought with money. It is even absurd to the point that even OEM factories are banned from trading, resulting in Huawei having no \"core\" available.
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When we overcome 5nm, advanced technology led by the United States has already changed the direction, because below 3nm, is the limit of silicon-based chips, and further forward, electronic tunneling effect will occur, that is, failure.
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China should now bow its head to the West in the era of silicon-based chips, turn around, or carbon-based chips, or quantum chips, and strive to achieve corner overtaking.
28 nanometers.
28 nanometers. In addition to CPU, GPU, AI and other chips that require high power consumption, the rest of the industrial chips are \"high-speed rail chips\" above 28nm, such as TV, air conditioning, automobiles, high-speed rail, rockets, satellites and so on.