Simplified Procedures for COTS TID Testing
A Comparison between 90Sr and 60Co
A. Menicucci (Space Systems Egineering)
F. Malatesta (Cobham Gaisler, Space Systems Egineering)
F. Di Capua (Università degli Studi di Napoli Federico II)
Luigi Campajola (Università degli Studi di Napoli Federico II)
P. Casolaro (Università degli Studi di Napoli Federico II)
G. Furano (European Space Agency (ESA))
Stefano Di Mascio (Space Systems Egineering)
Marco Ottavi (University of Rome Tor Vergata)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
The tolerance to the cumulative effects of ionizing radiation is one of the most important parameters to keep into account when selecting an EEE component for space applications. TID sensitivity is normally investigated measuring changes induced by gamma rays from 60Co sources to nominal parameters of a component or to its expected functional behavior. In this work we propose an on-chip 90Sr/90Y electron source as an alternative methodology for TID tests.60Co and 90Sr/90Y TID test setups for a complex SoC are compared in terms of complexity and of experimental results, investigating the use of a 90Sr/90Y as well as the established 60Co. We show that 90Sr allows a simpler test setup, manages to reproduce specific modes of failure obtained with 60Co and causes failures at comparable total doses. This makes 90Sr an interesting alternative to 60Co qualification and the use of untested components, to be further investigated especially for complex COTS SoCs.