Technology
FinFET and Gate-All-Around Transistors for Sub-3nm Process Nodes
Quick fact
In a 2023 GAA transistor, the gate covers the channel on all four sides, while in a FinFET it only covers three. This extra control is what allows chips to keep shrinking past 3 nanometers.
Why this is interesting
Your smartphone's processor is built with billions of tiny switches. But as these switches shrink to just a few atoms wide, how do engineers keep them from leaking electricity and failing?