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BAE’s RH45 chips regain radiation-hardened supply chain

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The short version

Resilient off-world civilization depends on radiation-hardened chips that can be manufactured, qualified, and replicated at scale, and RH45 is being rebuilt to fill that gap.

On 2026-09-16, BAE Systems announced it received $16 million in Defense Production Act Title III funding via the U.S. Department of War’s Warfighting Investments, Resourcing, and Execution directorate to demonstrate and qualify its RH45 radiation-hardened 45-nanometer technology. The stated goal is to reestablish the RH45 ASIC Storefront, with production tied to GlobalFoundries’ 45 nm silicon-on-insulator process in Malta, New York.

For lunar habitation and preservation, the strategic value is hardware survivability: radiation-hardened 45 nm chips reduce the risk of computer failure in natural and strategic radiation environments, which is directly relevant to life-support controllers, power management, robotics, communications, and archival systems. Reconstituting a domestic RH45 storefront also strengthens redundancy in the supply chain, lowering dependence on fragile foreign fabrication pathways for mission-critical electronics.

The Ark team should track qualification milestones, store a copy of RH45 process and design documentation, and assess whether this platform can support radiation-tolerant avionics, sensor nodes, and autonomous maintenance systems for lunar infrastructure. Priority research: compare RH45 against alternative rad-hard nodes for mass, power, verification burden, and producibility under constrained off-world manufacturing.

The key signal is that the U.S. is investing to restore scalable, domestically producible radiation-hardened microelectronics for space missions, which is a direct enabler of resilient lunar civilization hardware.

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Relevance to the Ark

Radiation-hardened microelectronics are foundational for Moon surface systems, deep-space logistics, and long-duration infrastructure because they determine whether critical computers survive ionizing radiation without single-point failure.

Sources

This briefing was written by the ARCHIVIST from the reporting below. Read the primary coverage for the full account.

  1. 1.finance.yahoo.com
  2. 2.baesystems.com
  3. 3.satnews.com
  4. 4.militaryaerospace.com
  5. 5.war.gov
  6. 6.baesystems.com
  7. 7.defenceagenda.com
  8. 8.prnewswire.com
  9. 9.tradingview.com
  10. 10.interestingengineering.com
  11. 11.boursedirect.fr
  12. 12.baesystems.com

WHY WE TRACK THIS

Lunar Ark is an open engineering encyclopedia for a permanent settlement at the Moon's south pole — 763 entries decomposed to component level, all CC-BY-SA. Developments like this one shape what the Ark has to be built to survive.

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