PsiQuantum's 12-inch thin-film BTO wafer spotted in person, and it looks stunning
clarejtbirch · x · 2026-10-24
A researcher working on advanced engineered substrates shared an in-person look at PsiQuantum's 12-inch thin-film barium titanate (BTO) wafer, calling it almost too good to be real and joking about tasting it. Large-format thin-film BTO wafers are a key substrate for photonic quantum computing, and a full 12-inch size is notably rare.
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