  Resistive AC-coupled Silicon Detectors (RSDs) are based on the Low Gain
Avalanche Diode (LGAD) technology, characterized by a continuous gain layer,
and by the innovative introduction of resistive read-out. Thanks to a novel
electrode design aimed at maximizing signal sharing, RSD2, the second RSD
production by Fondazione Bruno Kessler (FBK), achieves a position resolution on
the whole pixel surface of about 8 $\mu m$ for 200-$\mu m$ pitch. RSD2 arrays
have been tested using a Transient Current Technique setup equipped with a
16-channel digitizer, and results on spatial resolution have been obtained with
machine learning algorithms.
