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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?