Speaker
Description
In this presentation we describe the third production of Ultra-Fast
Silicon Detectors (UFSD3) by Fondazione Bruno Kessler (FBK) in Trento,
in collaboration with University of Trento and National Institute of
Nuclear Physics (INFN) in Torino.
The new UFSD3 production has been designed in order to study specific
features requested for the future Endcap Timing Layer of CMS at the High
Luminosity LHC, such as uniformity and narrow interpad distance.
Uniformity studies have been done by FBK on wafer and in Torino on cut
structures.
Different strategies for gain termination implants have been pursued and
measurements of the resulting inactive space between pads have been
performed using the Transient Current Technique (TCT).
Plans towards future UFSD production at FBK will also be discussed.
