Space Forge sparks plasma milestone for orbital chips

Space Forge has generated plasma aboard its ForgeStar-1 satellite in low Earth orbit, in what the company describes as a world-first for commercial in-space manufacturing of semiconductor materials.

The Cardiff-based venture said the experiment shows that a free-flying commercial platform can create and control the conditions needed for gas-phase crystal growth in orbit. The mission, called "The Forge Awakens", uses ForgeStar-1, which Space Forge developed in Wales as the UK's first dedicated in-space manufacturing satellite.

Space Forge positions the satellite as the first free-flying commercial semiconductor manufacturing tool operated in space. The milestone follows an earlier regulatory step when the company became the first organisation in the UK and Europe licensed for in-space manufacturing activities.

Orbital crystal growth

The plasma test confirms that the extreme environment needed for gas-phase crystal growth can be achieved on an autonomous satellite in low Earth orbit. Gas-phase crystal growth is a core process in the production of many semiconductor materials.

Research on the International Space Station has demonstrated aspects of crystal growth in microgravity. Space Forge's latest experiment is the first time a commercial spacecraft has carried out this form of plasma generation on a dedicated platform that operates independently of a crewed station.

Joshua Western, CEO and Co-founder at Space Forge, said the result marks a step change for orbital manufacturing.

"Generating plasma on orbit represents a fundamental shift, it proves that the essential environment for advanced crystal growth can be achieved on a dedicated, commercial satellite - opening the door to a completely new manufacturing frontier," said Western.

Wide bandgap focus

Space Forge is targeting wide- and ultra-wide bandgap semiconductor materials. The company lists gallium nitride, silicon carbide, aluminium nitride and diamond as its current focus areas.

These materials support technologies such as power electronics, advanced communications, quantum systems, defence platforms and high-performance computing. Manufacturers on Earth face constraints linked to defect formation, impurity incorporation and thermal instability during growth of these crystals.

Space Forge argues that the space environment offers a different route for material production. The company points to the absence of convection in microgravity, the ultra-high vacuum with near-zero nitrogen contamination and relatively stable thermal conditions as factors that could produce crystals that are several orders of magnitude cleaner than those grown on Earth.

Data from orbit

The plasma strike on ForgeStar-1 is the first in a sequence of experiments. The satellite will run a series of parameter sweeps that adjust operational conditions and track how plasma behaves in microgravity.

The spacecraft will collect data on plasma dynamics and stability. Space Forge plans to use this information in the design and operation of follow-on missions that move from environmental demonstrations towards active crystal growth and material production.

The company has not disclosed a timetable for when it expects to grow semiconductors on orbit at commercial scale. The latest flight focuses on validation of the satellite platform and the physical processes that underpin crystal growth.

End-of-life test

ForgeStar-1 is also part of a trial of controlled satellite demise. The spacecraft is already on a path of natural orbital decay.

Space Forge will monitor the trajectory using onboard systems. The Science and Technology Facilities Council will provide external tracking support.

The mission is designed to end in a controlled burn-up in the atmosphere. Space Forge describes this as a world-first test of a deliberate, managed end-of-life for an in-space manufacturing platform.

The company views this approach as a precursor to future reusable and returnable satellites that could de-orbit and re-enter on demand. Those later platforms would need more advanced thermal protection and recovery systems than are present on ForgeStar-1.

Hybrid manufacturing model

Space Forge has set out a longer-term plan that links orbital and terrestrial production. The firm intends to grow semiconductor seed crystals in orbit and return them to Earth.

These seeds would then move into scaling and processing on the ground at the Centre for Integrative Semiconductor Materials. The company presents this as a hybrid manufacturing model that sits alongside existing semiconductor supply chains.

Space Forge's stated aim is to deliver semiconductor materials that cannot be produced at the same quality level using Earth-based methods. The company says such materials could improve efficiency, performance and resilience across sectors including energy, communications, computing and defence.