On-Chip Superconducting Nanowire SNSPD Foundry Model

Underwrite 200mm wafer cleanrooms sputtering Niobium Titanium Nitride (NbTiN) nanowires with 50nm linewidths (producing superconducting single-photon detectors with 98% system detection efficiency and sub-10 picosecond timing jitter for photonic quantum computing). Model photonic foundry wafer sales ($125k/wafer), equipment payback.