Title :
Performance of high-brightness LEDs with VACNT-TIM on aluminum heat spreaders
Author :
Gao, Zhaoli ; Zhang, Kai ; Yuen, M.M.F.
Author_Institution :
Dept. of Mech. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
An application using vertically aligned carbon nanotube (VACNT) as thermal interface material (TIM) in high-brightness LEDs is demonstrated. VACNT arrays have been synthesized on the top and the bottom surfaces of the aluminum heat slugs and integrated into the LED modules using the designed packaging process. The thermal resistance of the LEDs is characterized using the thermal transient test system (MicRed, T3Ster). Compared with silver epoxy, VACNT-TIM shows a comparable thermal performance. It is found that a proper packaging process plays an important role in the final thermal performance of the LEDs with VACNT-TIM.
Keywords :
aluminium; carbon nanotubes; light emitting diodes; semiconductor device packaging; semiconductor device testing; thermal resistance; Al; C; MicRed; T3Ster; VACNT-TIM; heat spreader; high brightness LED; packaging process; thermal interface material; thermal transient test system; vertically aligned carbon nanotube; Carbon nanotubes; Heating; Light emitting diodes; Surface resistance; Surface treatment; Thermal resistance;
Conference_Titel :
Electronic Components and Technology Conference (ECTC), 2011 IEEE 61st
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-61284-497-8
Electronic_ISBN :
0569-5503
DOI :
10.1109/ECTC.2011.5898730
