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Proceedings Paper

Thin layer CPU thermal grease behavior at high temperatures
Author(s): Ioan Mihai; Cornel Suciu
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Paper Abstract

The present research aims to investigate the effect of surface micro-topography on microchannel and microtube performance, both in terms of pressure drop and heat transfer. A test rig was conceived and built in order to study CPU thermal grease behavior when subjected to high temperatures, close to those leading to CPU failure. The rig allows the CPU to reach temperatures up to 110°C. A thin layer of thermal grease Keratherm Thermal Grease KP97 is applied on the CPU surface and then the temperature is gradually elevated. Once a stable thermal regime is established at a certain temperature level, the CPU surface covered in thermal grease is scanned by laser profilometry. Experimental results show a few interesting effects such as a significant volume growth leading to a "pump up" effect, roughness variations for different temperatures and roughness decrease when a crystal window is placed on thermal grease covered surface.

Paper Details

Date Published: 7 December 2010
PDF: 6 pages
Proc. SPIE 7821, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V, 78211C (7 December 2010); doi: 10.1117/12.881689
Show Author Affiliations
Ioan Mihai, Stefan cel Mare Univ. of Suceava (Romania)
Cornel Suciu, Stefan cel Mare Univ. of Suceava (Romania)


Published in SPIE Proceedings Vol. 7821:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies V
Paul Schiopu; George Caruntu, Editor(s)

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