This article takes a close look at NASA’s Artemis II mission and how Infineon’s radiation-hardened semiconductors handled deep-space conditions. These chips played a big role in power management, control, and data communication on the Orion capsule.
It also touches on Infineon’s long technical heritage, their push into GaN research, and what it all might mean for space electronics as missions get more ambitious and data-heavy.
Artemis II validates Infineon rad-hard semiconductors for deep-space operations
Artemis II’s ten-day journey beyond Earth orbit put Infineon’s IR HiRel division rad-hard devices to the test in a real space environment. Infineon says the devices worked without a hitch, supporting key systems like power management, vehicle control, and data communication on the Orion spacecraft.
This isn’t just a one-off. It builds on decades of engineering, tough qualification, and system-level design that brings together semiconductor design, packaging, and testing for spaceflight reliability.
Infineon’s space story stretches back to the 1970s. Their components have flown on satellites, the International Space Station, and a bunch of NASA and ESA missions.
The company points out that its rad-hard portfolio meets tough standards like MIL-PRF-38535 Class V and ESA ESCC, tackling radiation risks way beyond Earth’s magnetic shield. The Artemis II results give a boost of confidence that these parts can keep working on long, deep-space missions.
Keys to reliability: system-level design and qualification
Infineon credits its reliability to a holistic approach—combining semiconductor design, packaging, and plenty of testing within a system-level framework. This targets the harsh radiation in deep space and makes sure everything works smoothly with spacecraft power, control, and communications.
The result? Devices that hold up even where single-point failures could spell disaster for a mission.
Infineon says its broad qualification program and long partnerships with space programs help build trust. Their in-house testing lets them characterize radiation effects across their product lines.
That means components don’t just survive—they behave predictably over the mission’s life. This focus on qualification is one reason space agencies keep turning to Infineon for high-reliability electronics.
- Radiation-hardened devices for power management, control, and data links
- Milestone standards like MIL-PRF-38535 Class V and ESA ESCC
- System-level integration that brings together design, packaging, and testing for spaceflight
- Decades of use in satellites and human spaceflight
GaN for space power: advancing beyond silicon
Infineon isn’t stopping at silicon. They’re pushing gallium nitride (GaN) technology for space, too. Recently, they qualified a 100 V GaN transistor to JANS standards, showing a real path to better efficiency and more power-dense electronics for spacecraft.
GaN devices cut switching losses and offer tighter thermal management. That means smaller magnetic components and lighter power systems—huge wins when every gram and watt counts in space.
This move toward wide-bandgap semiconductors matches the trend of missions getting more complex, with higher data rates and stricter size, weight, and power (SWaP) demands. GaN’s ability to shrink components without giving up reliability makes it a tempting choice for future deep-space platforms.
GaN versus silicon: performance gains in space
Infineon points out that GaN’s higher efficiency and power density let designers build more compact power conversion stages and lighter harnessing. Better thermal management comes along for the ride.
Higher currents at lower losses can shrink the mass and volume of magnetic parts, boosting spacecraft payload efficiency. Mixing GaN with proven rad-hard silicon gives mission designers a flexible toolkit for tough SWaP limits.
Broad portfolio and in-house testing capabilities
Infineon’s space offerings cover a wide range of components for space power and data systems. You’ll find Si power MOSFETs, gate drivers, relays, and RF components in their lineup.
They back these devices with in-house radiation testing, which lets them qualify parts quickly and check reliability as missions progress. That’s a big deal for mission-critical applications.
Infineon likes to see itself as a long-term technology partner for space programs that need electronics to last through tough, unpredictable conditions. As space agencies get bolder with their plans, Infineon aims to deliver rugged rad-hard solutions and next-gen GaN tech that can handle new power, control, and data demands.
They combine experience, tough qualification processes, and ongoing research into advanced materials. All of this, they hope, helps mission planners go further—while keeping systems resilient, efficient, and honestly, a bit lighter for whatever’s next.
Here is the source article for this story: Infineon rad-hard semiconductors validated in Artemis II mission