China's 7nm chip surprise reveals more than Beijing might like
And 7nm-process silicon from China is a genuine shocker. However, whether it portends a seismic shift in the country's chip expertise that will upend world markets and Western assumptions is another matter.
There are lots of interesting things about TSMC's N7 node, the most important being that it doesn't use the 13.5nm wavelength Extreme Ultraviolet lithography process to print the patterns on wafers that make them into circuits.pressured the Netherlands government to block ASML — the only provider of EUV lithography machines — from selling them to China. So, instead, N7 uses the previous generation 193nm Deep Ultraviolet process – a breathtaking achievement, but deeply consequential.
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