Modeling of the Buried Multiple Junction (BMJ) Detector in Reach-Through (RT) Condition

Autor: Guo-Neng Lu, Thais Luana Vidal de Negreiros da Silva, Patrick Pittet
Rok vydání: 2019
Předmět:
Zdroj: 2019 IEEE SENSORS.
DOI: 10.1109/sensors43011.2019.8956657
Popis: A physically-based model is proposed to describe the Buried Multiple Junction (BMJ) detector operated in high-voltage conditions. There is a breakdown voltage shift when two adjacent junctions’ depletion regions merge, i.e. in reach-through (RT) condition. The model detects whether adjacent junctions are in RT condition, in which case the electrostatic potential exhibits a potential barrier modulated by junctions’ bias. A thermionic current flowing through the barrier may become predominant as breakdown current. Model computations are compared with TCAD simulations and I-V measurements. The concordance on the results confirms that thermionic emission is the predominant breakdown mechanism in the BMJ structure.
Databáze: OpenAIRE