Atomic Machines

Advanced Manufacturing · AI Hardware · Robotics

Launch

Atomic Machines exits stealth with $250M for AI-built micro-machines

The debut product is a power relay conventional manufacturing couldn't build, aimed at AI data centers moving to 800-volt power.

• Atomic Machines emerged from six years of stealth on October 7, 2026, unveiling the Matter Compiler and $250 million raised to date.
• Founder and CEO Jeff Holden was Amazon's tenth engineer and built Amazon Prime, then became Uber's first chief product officer, launching its self-driving, AI labs and air-taxi divisions.
• The Matter Compiler builds three-dimensional machines with moving parts, multiple materials and features down to single-digit microns, directly from code and without molds, masks or fixed tooling.
• Its first product, PrimeSwitch PS-150, is a 150-amp relay that opens in 50 microseconds, about 1,000 times faster than a conventional contactor, packed into a 9.5mm by 3mm case for 800-volt AI data center power systems.
• Conventional manufacturing hits its limits in the low tens of microns, and MEMS chipmaking below that threshold follows a 'one product, one process' rule requiring years of custom tooling per device.
• PrimeSwitch is shipping to early-access customers for evaluation and will be shown publicly for the first time at the Open Compute Project Global Summit in San Jose, October 12-15.
• A manufacturing system that builds working micro-machines straight from code could open a long-stalled middle ground between machining and semiconductor fabrication, enabling microrobots and chip-embedded cooling.