Towards 100% array yield: understanding and fixing the frequency scatter of large kinetic inductance detector arrays

Eduard F. C. Driessen; Shibo Shu; Johannes Goupy; Alessandro Monfardini; Martino Calvo; Samuel Leclercq; Andrea Catalano

doi:10.1117/12.2629281

26 August 2022 Towards 100% array yield: understanding and fixing the frequency scatter of large kinetic inductance detector arrays

Eduard F. C. Driessen, Shibo Shu, Johannes Goupy, Alessandro Monfardini, Martino Calvo, Samuel Leclercq, Andrea Catalano

Author Affiliations +

Proceedings Volume PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; PC121900F (2022) https://doi.org/10.1117/12.2629281
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Kinetic Inductance Detectors fulfil their great promise of large pixel numbers due to their easiness of multiplexing, as has been witnessed by the astronomic instruments that have become available over the last years. However, the number of available pixels is currently limited by unavoidable scatter in the resonance frequency of individual pixels. We have studied this frequency scatter, and show that it is largely caused by fabrication inhomogeneities, giving rise to variations in critical dimensions on the 10% level. We discuss the intrinsic causes of these inhomogeneities, and possible solutions to avoid them. Moreover, we show that by performing a post-characterisation adaptation step of all individual pixels, we can recover the lost pixels. This result brings 10 kilopixel class KID arrays for mm-wave observation within reach.

Conference Presentation

Citation Download Citation

Eduard F. C. Driessen, Shibo Shu, Johannes Goupy, Alessandro Monfardini, Martino Calvo, Samuel Leclercq, and Andrea Catalano "Towards 100% array yield: understanding and fixing the frequency scatter of large kinetic inductance detector arrays", Proc. SPIE PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, PC121900F (26 August 2022); https://doi.org/10.1117/12.2629281

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