10–14 Nov 2025
CERN
Europe/Zurich timezone

Update on SICAR

13 Nov 2025, 14:40
20m
6/2-024 - BE Auditorium Meyrin (CERN)

6/2-024 - BE Auditorium Meyrin

CERN

114
Show room on map
WG6 - Wide bandgap materials WG6/WP3 - Wide bandgap detectors

Speaker

Xiyuan Zhang (Chinese Academy of Sciences (CN))

Description

This talk outlines the fabrication progress of the second-generation 4H-SiC Low-Gain Avalanche Diode (SICAR2), designed for a nominal gain of 10–15. Fabricated using 350nm stepper lithography and substrate thinning for improved timing resolution, the 2mm × 2mm die includes devices with 1.4mm and 0.55mm active areas, along with AC-pixelated (2×2) and AC-strip (4-strip) test structures. All devices feature an etched termination with field plate to reduce leakage current, though this limits the active area. SICAR2 establishes a critical foundation for next-generation SiC LGAD development — SICAR3 which will introduce a high-temperature ion-implanted Junction Termination Extension (JTE) to enable larger active areas with low leakage.

Type of presentation (in-person/online) in-person presentation
Type of presentation (I. scientific results or II. project proposal) I. Presentation on scientific results

Author

Xiyuan Zhang (Chinese Academy of Sciences (CN))

Presentation materials