Dynamic quenching of self-induced and self-sustaining avalanches in double-trenched LGADs
Abstract This paper revisits and revises earlier findings on self-induced and self-quenched avalanches in double trench isolated LGADs, triggered by surface generation current from trench-induced defects in the interpad region. The key aspects presented in this work are: 1) self-sustained avalanches, seeded by dark current, require a positive feedback between electron impact ionization in the gain layer and hole impact ionization at trench corners, influenced by the curvature and density of electric field lines; 2) quenching depends on the suppression of the local electric field at the gain layer and trench corners.
Authors
- Gordana Laštovička-Medin (ORCID: https://orcid.org/0000-0002-0513-1638)
- Jakob Andreasson (ORCID: https://orcid.org/0000-0002-3202-2330)
- G. Kramberger (ORCID: https://orcid.org/0000-0002-7580-384X)
- Mateusz Rębarz (ORCID: https://orcid.org/0000-0002-5823-2432)
- Vanja Backović (ORCID: https://orcid.org/0009-0004-5225-8326)
- D. Mrkic
- V. Baletic
- J. Kroll (ORCID: https://orcid.org/0000-0001-6215-3326)
Institutions
- Czech Academy of Sciences (CZ)
- Jožef Stefan Institute (SI)
- Extreme Light Infrastructure Beamlines (CZ)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- University of Montenegro (ME)
Publication Details
- Journal
- Journal of Instrumentation
- Published
- 2025-02-01
- DOI
- https://doi.org/10.1088/1748-0221/20/02/c02010
- Citations
- 3
- Primary Topic
- Lightning and Electromagnetic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 3.46