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StartupsGlobal / Other·Ranked Monday, July 6, 2026
Jim Keller's startup is building a factory to mass-produce small semiconductor fabs —Atomic Semi rebrands as 'Fab2' underlining intended role as a 'fab fab'
Jim Keller's Atomic Semi rebrands as Fab2, mass-producing modular fabs.

Atomic Semi, the semiconductor tooling startup founded by chip architect Jim Keller and DIY fabrication pioneer Sam Zeloof, has rebranded as Fab2.
AI score breakdown
#1 that day4.65/ 10
Technology breakthrough · weight 30%6/10
Economic impact · weight 25%5/10
Job impact · weight 20%3/10
Regional relevance · weight 15%6/10
Policy & geopolitics · weight 10%1/10
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