US — TechCrunch

Commonwealth Fusion Systems gets $85M to build better fusion-ready semiconductors

ChipsOctober 24, 20261 min read

Commonwealth Fusion Systems (CFS), a company building fusion power plants, will get $85 million from the U.S. government. The money will help it develop better chips for fusion energy.

What happened

CFS said it will receive $85 million from the U.S. government. The money comes from the CHIPS Act, a U.S. law that supports computer chip making, and it is given through the Department of Commerce. In return, the government gets a stake, which means a share of ownership, in CFS. The funding will go toward making advanced chips for the fusion power industry.

Why chips matter for fusion

Fusion is the process that powers the Sun. It joins atoms to release energy. Many startups are racing to finish their first test machines. CFS aims to switch on its Sparc reactor next year. Building one reactor is only a first step. To build many power plants, companies need electronics that last longer and a steady supply of parts.

Key facts

The award is worth $85 million.
The money is split across five separate projects.
CFS aims to turn on its Sparc reactor next year.
Silicon carbide is a type of chip used to handle high voltage. It is also found in EVs and data centers.

The five projects

Improve silicon carbide power electronics, which manage high voltages.
Build next-generation radio-frequency power generators that heat fusion fuel.
Develop faster electronics to control the reactor.
Make electronics that can resist radiation, so they last longer and cut running costs.
Adapt AI chips such as GPUs and TPUs for use in power plants.

Why it matters

Chips help control and power a fusion reactor. If they last longer and cost less, fusion power could become cheaper to run. The project also aims to strengthen the U.S. chip industry. CFS says this will make its power plants more capable and help the country build them with homegrown parts.

Glossary

Commonwealth Fusion Systems (CFS): A company that is building fusion power reactors and plants.
CHIPS Act: A U.S. law that gives government money to support making computer chips in the United States.
Sparc reactor: CFS's first fusion test machine, which it plans to switch on next year.
Silicon carbide: A material used in chips that handle high voltage, such as in EVs and data centers.
GPUs and TPUs: Types of computer chips used for AI work.

Same story, different eyes

The EngineerAI

In a fusion plant, the chips take the radiation, not just the plasma

Looking at this as an engineer, I love that the hard part isn't only the plasma. The electronics that pulse huge currents into the magnets and react fast to the reactor have to survive intense radiation too, and that's tough to design for. If chips last longer inside a plant, running costs drop, which could matter as much as the physics for making fusion affordable. How well the radiation-hardened parts hold up over years of real operation isn't known yet.

The StrategistAI

A fusion startup's CHIPS award quietly ties reactors to the semiconductor supply chain

Seen through a tech-geopolitics lens, what's interesting is that fusion is being treated as a supply chain question, not only a physics one. Silicon carbide power electronics, radiation-hardened controls and RF generators are the kind of chokepoint components that decide whether a reactor can be repeated dozens of times. The CHIPS Act money, paired with a government stake in CFS, suggests Washington sees domestic chips and future energy as one strategic bundle, and for the company it's a way to secure parts and funding at once. I'm curious how much of the silicon carbide production will end up inside the U.S., which hasn't been shared yet.

The InvestorAI

A government stake turns CFS's chip bet into a supply-chain play

Through an investor's eyes, the interesting part is that the $85M comes with a government equity stake, so public money is now sitting alongside private capital in CFS's cap table. It also hints at where the cost curve gets decided: after Sparc proves the physics, power electronics that last longer under radiation could lower operating costs across dozens of future plants. I'd watch whether CFS can turn these chip programs into products or partnerships that other fusion players buy too, because that's where a cost center could become a moat. How the stake is structured isn't public yet.

China's Trade-offs in Producing Chips Without EUV

China can now produce advanced chips without EUV lithography, but faces cost, yield, and production-time hurdles. Domestic manufacturers rely mainly on DUV lithography, using multi-patterning techniques that add steps, masks, and error risks.

ChipsZDNet KoreaOct 25

Microchip Bets on Turnkey Solutions Combining Hailo's AI Accelerators

Microchip Technology's Senior Vice President Mark Reiten said in a written interview with ZDNet Korea that single-chip AI semiconductor startups will struggle to compete without broad solutions. The comments came as Microchip moved to acquire edge AI chip startup Hailo to strengthen its microprocessor business.

ChipsVnExpressOct 23

Ho Chi Minh City Opens Shared Semiconductor Packaging Lab

SHTP ATP Lab, a shared semiconductor packaging and testing practice facility in Ho Chi Minh City's Saigon High-Tech Park, was inaugurated on October 23. Universities, colleges, research institutes and businesses can jointly use its infrastructure, which includes 13 equipment modules donated by Intel Products Vietnam.

ChipsZDNet KoreaOct 23

Nvidia Enters Qualcomm-Paved Path as Arm Windows PC Competition Heats Up

Nvidia has officially launched its RTX Spark Arm-based Windows PC platform, with partners including ASUS, MSI, Lenovo, Dell Technologies, and Microsoft, ending Qualcomm's roughly nine-year dominance of the Arm Windows PC market. The platform pairs a Blackwell GPU with Arm-based CPU cores and supports Nvidia's gaming technologies such as DLSS, Optix, Reflex, and G-Sync.