21–24 Jun 2022
CERN
Europe/Zurich timezone

QFG transistors radiation damage effects

24 Jun 2022, 09:20
20m
6/2-024 - BE Auditorium Meyrin (CERN)

6/2-024 - BE Auditorium Meyrin

CERN

114
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Speaker

Francisco Rogelio Palomo Pinto (Universidad de Sevilla (ES))

Description

Highly integrated and very low power microelectronics, as required by Read Out Chips, represents a challenge because maximum performance and minimum power consumption are opposite design requirements. Quasi Floating Gate transistors are a solution because they allow independent control of transistor static and dynamic operation: AC and DC input terminals are different. The DC input terminal has a big equivalent resistor, implemented as a mos reverse biased diode. Radiation displacement damage in mosfet electronics is not tipically an issue because Total Ionization Dose (and Single Event) effects are more relevant due to the shallowness of the active structures in the devices. But body diodes used in the QFG transistors are sensitive to radiation damage. In this work we analyze from first principles the radiation damage sensitivity of QFG transistors, we present experimental results after irradiation with gamma rays and discuss consequences for microelectronic designs.

Authors

Dr Clara Luján (ETSI-University of Sevilla) Francisco Rogelio Palomo Pinto (Universidad de Sevilla (ES)) Dr Fernando Muñoz (ETSI-University of Sevilla) Dr Jose María Hinojo (ETSI-University of Sevilla)

Presentation materials