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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.
Active Founders
Lucas Pabarcius
Lucas Pabarcius
Founder / CEO
Co-founder / CEO of Atum Works Recovering Caltech physicist, Brains in Silicon Lab (Stanford) dropout. Previously built the world’s fastest‑burning hybrid rocket engine before serving as a civil servant at NASA in optics, electric propulsion, and attitude‑control systems, where I collaborated with Nobel laureates and NASA leadership on missions including Starshot, Starshade, and Europa Clipper—and won NASA’s “Most Visionary Concept” Award.
Matteo Kimura
Matteo Kimura
Founder
Cofounder at Atum Works. I'm a computational mathematician out of Caltech, applying math and algorithms to controls, tech, and tough engineering problems. I've worked on tools used by tens of thousands and robots flown in space, between rooftops, in the desert, and near-space. I've written lunar flight software, led multi-million dollar NASA proposals, and served as systems engineer and flight director on an active space mission steering real spacecraft with code, math, and too much caffeine.
Malcolm Tisdale
Malcolm Tisdale
Founder
I co-founded Atum Works after completing my engineering thesis at Caltech on the multi-material additive manufacturing of hierarchical mechanisms. I worked on the Mars helicopter at the Jet Propulsion Laboratory. I co-founded Caltech Air and Outer Space, securing over $ 600,000 in research grants for advanced technology development, and led the development of electrodynamic dust-shielding hardware to receive NASA’s “Best Product Development Award.”
Company Launches
Atum Works: The Next Dimension of Compute
See original launch post

TL;DR
Atum Works is 3D printing the 3D devices of the future for 1/10th the cost of today’s 2D lithography.

https://www.youtube.com/watch?v=0n0Di5sLCjo

Problem

“For the past 50 years, semiconductor-technology development has felt like walking inside a tunnel. The road ahead was clear, as there was a well-defined path. And everyone knew what needed to be done: shrink the transistor. Now, we have reached the end of the tunnel."
H.-S. Philip Wong, Chief Scientist, TSMC, 2024.

Today’s 2D lithography has hit a fundamental wall in feature density, so the semiconductor industry has begun stacking 2D layers to fit more transistors, bits, and bandwidth on each chip.

But stacking scales cost exponentially with density, unlike the constant cost days of Moore: a 10-layer high bandwidth memory (HBM) package is ~5x more expensive than the same amount of un-stacked DRAM.

Solution

Using a 3D process to make today's increasingly 3D integrated circuits could shortcut this problem, scaling process complexity with materials rather than layers and enabling the next decade of continued progress.

Our 3D lithography technology can do this: it is capable of fabricating multi-material 3D structures with 100 nm resolution at wafer scale.

Where the ability to create more complex forms enables more complex functions, such granular control of matter enables the future of much more than just chips, including biotech, sensing, and advanced materials.

We recently crossed the cost thresholds that make this technology commercially viable. We are currently in conversation with customers, and will be driving an exponential scaling law in the production capacity of this technology over the coming decade.

What we’ve achieved so far

  • Set up our manufacturing facility and lab in Mountain View, CA.
  • Built our first 3D nano-printer.
  • Acquired our first customers, including an LOI for co-development with NVIDIA.

What’s next

  • Sell our first products (this year).
  • Exponentially scale production volume.
  • SECRET.

Team

We’re a team of physicists and systems engineers from Caltech and NASA, where we previously matured multiple nascent technologies, winning NASA’s Most Visionary Concept and Best Product Development awards.

Advisory Board
Dr. H.-S. Philip Wong: Chief Scientist, TSMC

Dr. Eli Yablonovitch: Director Emeritus of the NSF Center for Energy Efficient Electronics Science (E3S)
Dr. Julia Greer: Director, Caltech Kavli Nanoscience Institute
 

Dr. Michael Hochberg: Silicon Photonics Pioneer

Dr. Pooya Tadayon: Intel Fellow

Asks
Join our team! If you are, or know any world-class applied physicists, material scientists, chemists, systems engineers, please get in touch!

Become our customer! If you or someone you know needs something unfathomably complex fabricated with a 100 nm minimum feature size, please get in touch!

Atum Works
Founded:2024
Batch:Spring 2025
Team Size:3
Status:
Active
Location:Mountain View
Primary Partner:Garry Tan