At the IEEE International Electron Devices Meeting in San Francisco, PhantaField unveiled the 12-inch NanoGalaxy PPMOCVD — the production generation of its plasma-photon MOCVD platform, and the tool on which the Sophon monolithic-3D stack is built. The system grows atomically uniform 2D transition-metal-dichalcogenide monolayers across full 300 mm wafers in a 60-second growth window, with four independent chambers sustaining 60 wafers per hour.
The headline is the wafer size; the significance is the transition it represents. A process that works on 200 mm research wafers is a demonstration. A process that holds uniformity across 300 mm at production cadence is a manufacturing platform. Everything the industry already owns — lithography, etch, metrology, automation — is built around 300 mm, which means a 2D-materials process at that size can slot into an existing fab rather than demanding a new one.
From research to fab
The two mechanisms proven on the 8-inch demonstrator — inductively-coupled plasma to activate precursors below the thermal ceiling, and in-situ UV irradiation to repair defects as the film grows — were re-engineered for the realities of volume manufacturing: chamber matching across four reactors, rotary edge-clamp wafer handling, and six-zone thermal control, all while keeping growth at or below the 400 °C back-end-of-line ceiling that lets 2D layers sit directly on finished CMOS.
With the 12-inch platform qualified, the path from a single grown monolayer to a 64-tier compute-and-memory stack becomes a process flow rather than a laboratory result — the precondition for everything in the Sophon program that followed.