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Single-Event-Upset Sensitivity Analysis on Low-Swing Drivers

Lookup NU author(s): Nor Mahyuddin, Dr Gordon Russell

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Abstract

Technology scaling relies on reduced nodal capacitances and lower voltages in order to improve performance and power consumption, resulting in significant increase in layout density, thus making these submicron technologies more susceptible to soft errors. Previous analysis indicates a significant improvement in SEU tolerance of the driver when the bias current is injected into the circuit but results in increase of power dissipation. Subsequently, other alternatives are considered. The impact of transistor sizes and temperature on SEU tolerance is tested. Results indicate no significant changes in Q(crit) when the effective transistor length is increased by 10%, but there is an improvement when high temperature and high bias currents are applied. However, this is due to other process parameters that are temperature dependent, which contribute to the sharp increase in Q(crit). It is found that, with temperature, there is no clear factor that can justify the direct impact of temperature on the SEU tolerance. Thus, in order to improve the SEU tolerance, high bias currents are still considered to be the most effective method in improving the SEU sensitivity. However, good trade-off is required for the low-swing driver in order to meet the reliability target with minimal power overhead.


Publication metadata

Author(s): Mahyuddin NM, Russell G

Publication type: Article

Publication status: Published

Journal: Scientific World Journal

Year: 2014

Pages: 1-7

Print publication date: 19/03/2014

ISSN (print): 1537-744X

ISSN (electronic): 2307-9037

Publisher: Hindawi Publishing Corporation

URL: http://dx.doi.org/10.1155/2014/876435

DOI: 10.1155/2014/876435


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