Infineon Applied sciences AG radiation-hardened HiRel energy units are aboard the Nancy Grace Roman Area Telescope, which lifted off from Kennedy Area Heart in Florida, marking the profitable launch of NASA’s subsequent flagship house observatory. The Roman Area Telescope will journey to the second Solar-Earth Lagrange level (L2), greater than 1.5 million kilometers from Earth, the identical orbital place because the James Webb Area Telescope, the place steady gravitational circumstances and an unobstructed view of a large swath of the sky will assist the mission’s scientific program. The Roman Area Telescope mission provides to Infineon’s house heritage that stretches again to the Nineteen Seventies, throughout which the corporate supported a whole lot of house missions together with navigation satellites, the Worldwide Area Station, and NASA’s Artemis program, with rad-hard elements which have traveled greater than 20 billion kilometers from Earth.
“The launch marks the start of what’s going to be one of the scientifically productive house observatory missions ever undertaken, and Infineon’s HiRel expertise is a part of that from day one,” mentioned Mike Mills, Senior Vice President and Normal Supervisor HiRel at Infineon. “Roman will function at L2 for as much as a decade with no risk of upkeep or servicing. At that distance, in that radiation surroundings, energy expertise has to work flawlessly from day one and preserve working. Area applications require applied sciences and companions they will depend on for many years, and the number of Infineon’s HiRel units for the Roman mission displays the qualification depth and mission heritage that the house trade calls for from a strategic expertise accomplice.”
Past Earth’s protecting magnetic subject, high-energy particles strike digital elements unimpeded and might completely harm or destroy them, inflicting mission failure. Infineon’s radiation-hardened expertise addresses these mechanisms not by way of passive shielding, however by way of a semiconductor structure that’s radiation-resistant by design.
Infineon’s HiRel portfolio built-in into the Roman Area Telescope consists of rad-hard energy semiconductor elements. The units are certified to MIL-PRF requirements with Whole Ionizing Dose (TID) and Single Occasion Results (SEE) characterization, offering the efficiency margins required for sustained operation at L2. Roman’s onboard programs will downlink roughly 1.4 terabytes of uncooked science knowledge per day to floor stations in New Mexico, Australia, and Japan, representing the very best knowledge quantity of any NASA astrophysics mission up to now. Dependable, steady energy supply to the telescope’s devices and knowledge programs is a prerequisite for assembly this operational cadence throughout the total length of the mission.
Infineon’s HiRel product vary spans radiation-hardened silicon energy MOSFETs, gallium nitride (GaN) transistors, gate drivers, solid-state relays and diodes, backed by in-house fabrication, sturdy radiation testing capabilities and assured long-term product availability. Infineon’s JANS-qualified rad-hard 100 V GaN transistor, the primary and solely internally manufactured rad-hard GaN transistor in the marketplace certified per MIL-PRF-19500, represents the vanguard of this portfolio. GaN allows decrease switching losses, larger energy density, and better switching frequencies, decreasing energy losses and magnetic part necessities and delivering measurable weight and quantity financial savings on the system degree, the place each gram counts in house purposes.
