Directly synthesizing CNT-TIM on aluminum alloy heat sink for HB-LED thermal management

Author

Kai, Zhang ; Yuen, Matthew M F ; Xiao, David G W ; Fu, Y.Y. ; Chan, Philip

Author_Institution

Dept. of Mech. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong

fYear

2008

fDate

27-30 May 2008

Firstpage

1659

Lastpage

1663

Abstract

Vertically aligned carbon nanotube (VACNT) arrays were synthesized directly on aluminum alloy substrates by thermal chemical vapor deposition (CVD). Iron nitrate (Fe(NO₃)₃ldr9H₂O) was used as the catalyst. Parameters influencing CNT synthesis were studied and optimized. Several surface treatment methods were proposed to improve the quality of CNTs synthesized on aluminum alloy substrates. The grown CNT arrays were used as thermal interface material (TIM) while the aluminum alloy substrate used as the heat sink in high brightness LED packages. The measured thermal resistance of the grown CNT-TIM was 38 mm²-K/W. The output light power testing demonstrated CNT-TIM is an attractive thermal management solution for HB- LED packages.

Keywords

carbon nanotubes; chemical vapour deposition; heat sinks; nanotechnology; surface treatment; thermal management (packaging); thermal resistance; C; aluminum alloy substrates; catalyst; heat sink; high brightness LED packages; output light power testing; surface treatment; thermal chemical vapor deposition; thermal interface material; thermal management; thermal resistance; vertically aligned carbon nanotube arrays; Aluminum alloys; Carbon nanotubes; Chemical vapor deposition; Heat sinks; Iron; Light emitting diodes; Packaging; Surface resistance; Thermal management; Thermal resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Components and Technology Conference, 2008. ECTC 2008. 58th

Conference_Location

Lake Buena Vista, FL

ISSN

0569-5503

Print_ISBN

978-1-4244-2230-2

Electronic_ISBN

0569-5503

Type

conf

DOI

10.1109/ECTC.2008.4550200

Filename

4550200