3-5 June 2020
Europe/Zurich timezone

[US] Effects of neutron irradiation on HV-JFETs

5 Jun 2020, 15:10
20m

Speaker

Dr Gabriele Giacomini (Brookhaven National Laboratory (US))

Description

We had p-type HV-silicon JFETs, fabricated at Brookhaven National Laboratory, irradiated with neutrons at the Triga reactor in JSI, up to a fluence of 1.5e15 neq/cm2. Most notably, output characteristics show a dramatic increase of the drain saturation voltage with the irradiation. By means of TCAD simulations, which used the Perugia radiation damage model, we are explaining this effect as due to the charge introduced by the traps, that modifies the electrostatics in sensitive areas of the JFET and limits the hole current toward the drain. Effects of acceptor removal are also visible in the I-V curves.

Primary author

Dr Gabriele Giacomini (Brookhaven National Laboratory (US))

Co-authors

Marco Bomben (LPNHE & Université de Paris, Paris (FR)) David Lynn (Brookhaven National Laboratory (US)) Wei Chen (Brookhaven Nationakl Laboratory) Gian-Franco Dalla Betta (INFN and University of Trento)

Presentation materials