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Atum Works

Atum Works is a YC Spring 2025 (P25) company. Based in Mountain View, CA, USA. Team of 3.

  • Hard Tech
  • 3D Printing
  • Semiconductors

About Atum Works

GPAgent's own fund-neutral profile, written from public information. Updated Oct 5, 2026.

Summary

Atum Works builds scalable 3D lithography equipment for semiconductor manufacturing, targeting the fabrication of arbitrary 3D metal structures at submicron resolution. The technology extends chip scaling into the vertical dimension, replacing the planar constraints of conventional lithography with a foundry-grade 3D printing process. It addresses the work currently done by 2D lithography systems that cannot produce complex three-dimensional metal geometries at wafer scale.

From the Y Combinator listing

How Atum Works describes itself in Y Combinator's public directory. Original listing (opens in a new tab)

Gigascale Nanomanufacturing

Atum Works is building 3D ASML. Founded by Caltech and NASA engineers, we're starting the next scaling law of semiconductor manufacturing, this time in 3D.

Facts

Industry
Industrials / Industrials -> Manufacturing and Robotics
Location
Mountain View, CA, USA
Team size
3
Status
Active
Stage
Early

Founders (3)

  • Lucas Pabarcius
    Founder / CEO
  • Malcolm Tisdale
    Founder
  • Matteo Kimura
    Founder

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