Atomic Machines has built the Matter Compiler, which the company calls "the first in a new class of AI-native, all-digital manufacturing systems" that build working machines directly from code. The company spent six years in stealth and has raised $250 million to date from investors including OneIM, Gigafund and XTX Ventures. Its first product, the PrimeSwitch PS-150, is an electromechanical power relay that opens in 50 microseconds, about 1,000 times faster than a conventional contactor.
The Matter Compiler targets micro-machines, such as motors and gears the size of a grain of sand. According to Atomic Machines, one system produces complete three-dimensional devices with moving parts, multiple materials and assembled subsystems, with features down to single-digit microns and no hard tooling. The company says casting, molding and machining top out in the low tens of microns, and that MEMS fabs need years of custom process development for each new device class.
Every operation on the system is measured with high-precision metrology and corrected in real time, the company says, and the AI runs its own experiments on its own hardware to test what simulation proposes. For metrology engineers, that puts measurement inside the machine's control loop. "We're making machines programmable: many materials, moving parts, sealed and wired, straight from a file," said Jeff Holden, founder and CEO of Atomic Machines.
The PS-150 is aimed at the 800-volt DC distribution now arriving in AI data centers. At those voltages, Atomic Machines says, a fault delivers destructive energy in microseconds, while mechanical protection opens in milliseconds and then has to extinguish an arc. The bistable relay has 200 micro-ohms of on-resistance, 1,500 volts of galvanic isolation and a continuous rating of 150 amps. It comes in a hermetically sealed surface-mount package 9.5 millimeters across and 3 millimeters thick, and it holds its state with zero power. In a hybrid breaker, a small solid-state bypass carries current for the microseconds the contact takes to open.
The PS-150 is shipping to early-access customers for evaluation. Atomic Machines will show it publicly for the first time at the Open Compute Project Global Summit in San Jose, October 12–15.
