Dual‑Side Superconducting Circuitry on Ultra‑Thin Silicon Wafers: Compact, Low‑Crosstalk Solution
A new fabrication methodology addresses the need for a thin, double-sided circuitry board capable of low crosstalk between sensors and low loss in transmission lines.
The fabrication method allows for a minimalistic silicon wafer to be used as a circuit board while reducing space and increasing efficiency by depositing superconducting material on both sides. Due to the thin nature of the silicon wafer, an additional backing handle wafer is required during the fabrication of this circuitry to allow for deposition of metal thin film on a hot substrate on one side of the wafer. In addition, a metallic and polymeric sacrificial layer is used to protect the silicon substrate and superconducting metallic layers during removal of the unwanted silicon, buried oxide, and epoxy layers.
This process introduces the fabrication methodology required to realize the ultra-low-loss transmission lines and ultra-low crosstalk between superconducting sensors.
NASA is actively seeking licensees to commercialize this technology. Please contact NASA’s Licensing Concierge at This email address is being protected from spambots. You need JavaScript enabled to view it. or call at 202-358-7432 to initiate licensing discussions. Follow this link here for more information.
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