The 5-nanometer chip was not developed by itself.
The 5nm chip was developed by a Finnish company, and in 2019, Finnish company Silex Microsystems opened a new R&D center in Munich, Germany, to further develop and optimize its 5nm process. Silex is a global leader in semiconductor production process technology, providing industry-leading transistor and capacitor miniaturization solutions for manufacturing chips used in automotive, industrial, iot and 5G communications.
Smic's 5nm etching machine can be said to be the top technology completely independently developed after Huawei 5G. Now, after three years of development, the technology of manufacturing 5nm etching machines has become more mature. Many people should know that as a chip manufacturer, TSMC is currently trying to mass-produce 5nm chips.