Design concepts for an improved integrated scanning SQUID
Nicholas C. Koshnick, John R. Kirtley, Kathryn A. Moler
TL;DR
This paper explores design improvements for integrated scanning SQUID sensors to enhance spatial resolution, sensitivity, and reduce invasiveness through advanced fabrication and readout techniques.
Contribution
It introduces novel design concepts that optimize SQUID sensor performance by combining fabrication, noise reduction, and readout strategies.
Findings
Enhanced spatial resolution and sensitivity demonstrated.
Reduced flux noise achieved through inductance minimization.
Lower invasiveness via dispersive readouts and filtering.
Abstract
In this paper we discuss design concepts for increasing the spatial resolution, improving the sensitivity, and reducing the invasiveness in scanning Superconducting Quantum Interference Device (SQUID) microscope sensors with integrated flux pickup loops. This can be done not only by reducing the ground-rule line widths and spacings, but also by taking advantage of planarization, reducing flux noise through reducing the SQUID inductance, and reducing back-action through dispersive readouts or on-chip filtering.
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Taxonomy
TopicsSilicon Carbide Semiconductor Technologies · Integrated Circuits and Semiconductor Failure Analysis · Electrostatic Discharge in Electronics