The smaller the process used to fabricate chips, the more transistors fit inside the densely packed space inside. That means higher performance and better energy consumption. For example, the original iPhone
used an SoC that was manufactured using the 45nm process. Today's top chipsets, including the Snapdragon 855, are produced using the 7nm process. And with the use of extreme ultraviolet lithography (EUV), chip makers can more precisely design the layouts of integrated circuits (IC) for even more performance enhancements.
Moore's Law, which was an observation made by Intel founder Gordon Moore states the number of transistors inside an IC double every other year. While this hasn't been followed perfectly, the number of transistors inside these components keeps rising. TechWeb reports
(via WCCF Tech
) that TSMC is awaiting certain environmental approvals for the factories that will build 3nm chips in Hsinchu, Taiwan starting in 2022. TSMC senior director Zhuang Zishou says that it will conduct R&D for 2nm chips in the same city to avoid "brain drain."
As fast as 7nm chips are now, it is hard to imagine the blinding speed that will be available when chips made using the 2nm process become commonplace.