IBM has announced what it calls the world's first sub-1 nanometer chip technology.
The company debuted the process on June 25, 2026, marking a claimed milestone in semiconductor scaling. Modern commercial chips — including those from TSMC and Intel — operate at process nodes measured in low single-digit nanometers, with 2nm production just beginning to ramp. Getting below 1nm has been considered a hard physical boundary by much of the industry, where quantum effects and atomic-scale tolerances make transistor shrinkage increasingly unreliable. IBM did not disclose detailed yield figures, manufacturing partners, or a timeline to production.
Semiconductor node names have been marketing fictions for years — "3nm" chips do not have 3nm transistor gates — but sub-1nm as a label would still represent a meaningful jump in transistor density if the underlying physics hold up. IBM has a history of announcing chip research milestones well ahead of any commercial reality: its 2nm chip announcement in 2021 still has not reached mass production. The gap between a lab demonstration and a foundry shipping wafers at scale is where these claims usually quietly expire.
For now, treat this as a research result, not a product. The industry will want to see peer-reviewed process details before updating its roadmaps.