Ultra-Precise Deposition – XTPL Technology for 3D Printed Broadband Spiral Inductors

This paper presents the first spiral inductor fabricated with the ultra-precise deposition (UPD) printing system by XTPL to the best of our knowledge. Three different designs of printed spiral inductors are designed, fabricated and compared. All inductors are manufactured on a standard substrate material prepared accordingly for the printing process. The small structural sizes that can be achieved allow a reduction of parasitic effects and thereby a increase of the self resonant frequency (SRF) compared to a reference inductor. Overall, this paper demonstrates the potential of the UPD printing system for printing passive circuit components, particularly inductors.