Computing · 2022

Gate-all-around transistor

The gate wraps the channel on all four sides.

Samsung started 3 nm production with gate-all-around nanosheet transistors in 2022. Surrounding the channel gives better control than FinFETs.

Arcs above join it to what it stood on, arcs below to what it led to. The bar places this stretch on the tree's whole timeline.

What it built on 1

The dashed line marks when it first worked.

Transistors per microprocessor Latest: 58.2B transistors (2021) Source: Our World in Data

ML hardware FLOP/s per dollar Source: Epoch AI, ML hardware (CC BY 4.0)