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Inside PsiQuantum: The Photonics Chip Never Seen Before

Er-Xuan Ping, Pete

Leveraging Molecular Beam Epitaxy within a Class 1,000 cleanroom, engineers fabricate high-precision Barium Titanate on Strontium Titanate films atop 300mm silicon wafers to support single-photon quantum computing architectures. The ultra-high vacuum process employs rigorous environmental controls and automated transfer systems to ensure crystalline integrity while facilitating immediate integration into high-volume manufacturing lines with partners like GlobalFoundries. Ongoing characterization using RHEED and optical interference validates these substrates for future dual utility as qubits or storage vectors within scalable quantum systems.