# The 7-Volt Problem: Why the Semiconductor Industry Has Been Testing the Wrong Failure Mode - slug: the-7-volt-problem-why-the-semiconductor-industry-has-been-testing-the-wrong-failure-mode - date: 2026-04-19 - category: Space & Aerospace HTOL tests that certify chips for medical implants and satellites assume degradation is thermal. A UCSB quantum model shows its actually a single electron event at exactly 7 eV—temperature-independent, probabilistic, and invisible to the Arrhenius models the industry has used for decades. ---