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Emerging nanotechnology-based thermal interface materials for automotive electronic control unit application

Emerging nanotechnology-based thermal interface materials for automotive electronic control unit application

Otiaba, K.C., Ekere, N.N., Bhatti, R.S., Mallik, S. and Amalu, E.H. (2011) Emerging nanotechnology-based thermal interface materials for automotive electronic control unit application. In: Microelectronics and Packaging. Institute of Electrical and Electronic Engineers, Inc, Piscataway, NJ, USA, pp. 1-8. ISBN 978-1-4673-0694-2 (print)

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Abstract

The under-hood automotive ambient is harsh and its impact on electronics used in electronic control unit (ECU) assembly is a concern. The introduction of Euro 6 standard (Latest European Union Legislation) leading to increase in power density of power electronics in ECU has even amplified the device thermal challenge. Heat generated within the unit coupled with ambient temperature makes the system reliability susceptible to thermal degradation which may result in catastrophic failure if not efficiently dissipated. Previous investigations show that the technology of thermal interface materials (TIMs) is a key to achieving good heat conductions within a package and from a package to heat sinking device. With studies suggesting that conventional TIMs contribute about 60% interfacial thermal resistance, innovative technology is required to improve the thermal performance of TIMs. A review of emerging nanotechnology in TIMs shows that carbon nanotubes (CNTs) and carbon nanofibres (CNFs) when used as the structure of TIM or TIM filler could improve the overall thermal and mechanical properties of TIMs. Hence, CNTs/CNFs have the potentials to advance thermal management issues in ECU. This search identifies chemical vapour deposition (CVD) as a low cost process for the commercial production of CNTs. In addition, this review further highlights the capability of CVD to grow nanotubes directly on a desired substrate. Other low temperature techniques of growing CNT on sensitive substrates are also presented in this paper.

Item Type: Conference Proceedings
Title of Proceedings: Microelectronics and Packaging
Additional Information: Paper in: Proceedings of 18th European Conference (ECMP) on Microelectronics and Packaging, 2011, 12-15 September 2011, Brighton, East Sussex, UK.
Uncontrolled Keywords: under-hood automotive ambient, electronic control unit (ECU), Euro 6 standard, thermal interface materials (TIMs), nanotechnology, carbon nanotubes (CNTs), carbon nanofibres (CNFs), chemical vapour deposition (CVD)
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments: School of Engineering
School of Engineering > Department of Computer & Communications Engineering
Related URLs:
Last Modified: 14 Oct 2016 09:19
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/7886

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