This chip keeps working at 700°C, surviving lava-like heat

USC researchers demonstrated a memristor-based memory device that remained stable at 700°C without signs of degradation.

The device retained data for over 50 hours, survived more than one billion switching cycles, and ran at 1.5 V with nanosecond switching speeds.

The design stacks tungsten, hafnium oxide, and a graphene monolayer; graphene blocks tungsten atom migration and prevents failure.

Researchers published the results in Science and plan commercialization via startup TetraMem; funding included USAF research agencies and Japanese collaborators.