  The necessity to increase exposure in rare event searches experiments by
maintaining a low energy threshold and a good energy resolution leads to
segmented detectors as in EDELWEISS (Dark Matter), CUORE (0{\nu}\b{eta}\b{eta})
or RICOCHET (CE{\nu}NS) for example. However, the large number of sub-elements
can dramatically increase the complexity of such detector arrays. In this work
we report on our progress towards designing a flexible detector technology
based on KID resonators evaporated on massive target crystals readout by a
contact-less feed-line. Providing that we achieve O(100) eV energy threshold,
such approach could easily be scaled to tens of kilogram detector arrays thanks
to the intrinsic multiplexing capability of mKIDs. Using a 30 g silicon target
absorber with Al/Ti multilayers for the KID resonator, we report a significant
improvement of our detector response exhibiting a keV-scale energy resolution
combined with the absence of position dependence on the event location. Indeed,
compared to our previous work, we are now able to properly identify calibration
lines from surface (20 keV X-rays) and bulk events (60 keV gamma rays). This
significant improvement is an important step toward a better understanding of
phonons and quasiparticles dynamics which is pivotal in optimizing this
technology.
