21–24 Jun 2022
CERN
Europe/Zurich timezone

New impact ionization parameters

23 Jun 2022, 09:40
20m
6/2-024 - BE Auditorium Meyrin (CERN)

6/2-024 - BE Auditorium Meyrin

CERN

120
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Speaker

Esteban Curras Rivera (CERN)

Description

In order to understand better the performance of LGADs, in particular in terms of Gain and breakdown voltage, it is important to know with high precision the structure of the devices and have a very accurate impact ionization model. There are several impact ionization models in the literature and many studies have been done in this respect, but no one is able to fit the empirical data taken in the lab with LGADs. Combining simulation and measurements, we extracted more accurate impact ionization parameters: alpha and beta as a function of the electric field and temperature. The work is presented in this talk.

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