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- Title
Guard ring separation effect on radiation response of single photon avalanche diodes.
- Authors
Golmohammad Saray, Faezeh; Shojaee, Fatemeh; Karami, Mohammad Azim
- Abstract
In this work, guard ring separation effect on the total ionizing dose response of a single-photon avalanche diode (SPAD) is studied. The dark count rate (DCR) under 1 Mrad (SiO2) X-ray radiation is decreased by 12.9% by creating separation between the guard ring and the active region by 5 microns in a SPAD manufactured in 180 nm high voltage complementary metal-oxide semiconductor (CMOS) technology. Moreover, photon detection probability (PDP) of the proposed structure and the conventional DPD SPAD are calculated which indicates that the PDP variation of the proposed structure is negligible.
- Subjects
AVALANCHE diodes; RADIATION; PHOTONS; HIGH voltages; IONIZING radiation
- Publication
Optical & Quantum Electronics, 2023, Vol 55, Issue 12, p1
- ISSN
0306-8919
- Publication type
Article
- DOI
10.1007/s11082-023-05349-9