21–24 Jun 2022
CERN
Europe/Zurich timezone

TCAD simulation of impact ionization in non-irradiated LGADs

23 Jun 2022, 09:20
20m
6/2-024 - BE Auditorium Meyrin (CERN)

6/2-024 - BE Auditorium Meyrin

CERN

120
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Speaker

Michael Moll (CERN)

Description

We present TCAD simulations of non-irradiated LGAD sensors (HPK and CNM). CV curves are used in combination with SIMS/SRP/TPA-TCT measurements to determine the doping profiles and with them the electric field within the LGAD bulk and gain layers.

Various impact ionization models available within the Synopsys TCAD framework, as well as the Masetti model are evaluated and finally a fit to experimental gain measurements (TCT) is performed to extract model parameters that can be used for further studies. In this presentation we concentration on the concept of fitting. In the second presentation (see E.Curras talk) we focus on Temperature dependence of the impact ionization parameters.

Primary authors

Presentation materials