Space Forge Fires Up First Plasma-Based Semiconductor Factory in Orbit

By NineScrolls Team · 2026-03-14 · 2 min read · Industry

Table of Contents

The Milestone

In January 2026, Welsh startup Space Forge successfully generated plasma aboard its ForgeStar-1 satellite—a world first for commercial in-space manufacturing. The microwave-oven-sized spacecraft fired its miniature furnace to 1,000 degrees Celsius, demonstrating that gas-phase crystal growth can be created and controlled autonomously in low Earth orbit.

This is the first time a commercial spacecraft has demonstrated plasma-based semiconductor processing capability. Previous plasma experiments in space were limited to the International Space Station under research conditions, not as part of a commercial manufacturing platform.

How It Works

ForgeStar-1 carries a compact plasma processing system designed for vapor-phase deposition of semiconductor materials in microgravity. The absence of gravitational convection in orbit allows for more uniform crystal growth than is achievable on Earth, potentially yielding materials with fewer defects and superior electronic properties.

The plasma demonstration confirms that the extreme conditions required for gas-phase crystal growth—high temperatures, controlled gas chemistry, and stable plasma generation—can be maintained on an autonomous, free-flying platform without human intervention.

Target Materials

Space Forge is focused on wide- and ultra-wide-bandgap semiconductor materials: gallium nitride (GaN), silicon carbide (SiC), aluminum nitride (AlN), and diamond. These materials underpin critical technologies including power electronics for EVs and grid infrastructure, advanced 5G/6G communications, quantum computing systems, defense platforms, and high-performance computing.

On Earth, these materials are difficult to grow with low defect densities due to gravitational effects on crystal formation. Space Forge's thesis is that microgravity-grown seed crystals will have superior structural quality, enabling better performance in finished devices.

The Hybrid Manufacturing Model

The company's long-term vision is not to replace terrestrial semiconductor manufacturing but to complement it. Space-grown seed crystals will be returned to Earth and scaled at the Centre for Integrative Semiconductor Materials (CISM) in Wales. This hybrid model uses the unique advantages of orbital processing for the most quality-sensitive step—initial crystal nucleation and growth—while relying on established ground-based facilities for wafer fabrication and device processing.

What Comes Next

ForgeStar-1 is a test vehicle only. It will deorbit and burn up in the atmosphere later in 2026. The successor satellite, ForgeStar-2, will be the first to actually produce and return semiconductor materials to Earth. It will be equipped with a reentry heat shield designed to survive atmospheric return and deliver its cargo intact.

Space Forge raised 22.6 million pounds ($30.5 million) in Series A funding to build ForgeStar-2 and advance toward commercial production.

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