Heat spreaders can be made from natural graphite sheet materials. These spreaders take advantage of the anisotropic thermal properties of natural graphite. Natural graphite exhibits a high thermal conductivity in the plane of the sheet combined with a much lower thermal conductivity through the thickness of the sheet. As a result, a natural graphite sheet can function as both a heat spreader and an insulator and can be used to eliminate localized hot spots in electronic components. In some cases, a natural graphite heat spreader can replace a conventional thermal management system consisting of a heat sink and cooling fan. This paper examines the properties of natural graphite heat spreaders and the application of these spreaders to thermal management problems in laptop computers. The thermal and mechanical properties of natural graphite heat spreaders are presented along with a discussion of how those properties are measured. The use of a natural graphite heat spreader to reduce the touch temperature in a laptop computer is presented. Both experimental techniques and numerical models are used to examine performance of the heat spreader in this application.
Skip Nav Destination
ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference
July 17–22, 2005
San Francisco, California, USA
Conference Sponsors:
- Heat Transfer Division and Electronic and Photonic Packaging Division
ISBN:
0-7918-4200-2
PROCEEDINGS PAPER
Thermal Performance of Natural Graphite Heat Spreaders
Martin Smalc,
Martin Smalc
Advanced Energy Technology, Inc., Parma, OH
Search for other works by this author on:
Gary Shives,
Gary Shives
Advanced Energy Technology, Inc., Parma, OH
Search for other works by this author on:
Gary Chen,
Gary Chen
Advanced Energy Technology, Inc., Parma, OH
Search for other works by this author on:
Shrishail Guggari,
Shrishail Guggari
Advanced Energy Technology, Inc., Parma, OH
Search for other works by this author on:
Julian Norley,
Julian Norley
Advanced Energy Technology, Inc., Parma, OH
Search for other works by this author on:
R. Andy Reynolds, III
R. Andy Reynolds, III
Advanced Energy Technology, Inc., Parma, OH
Search for other works by this author on:
Martin Smalc
Advanced Energy Technology, Inc., Parma, OH
Gary Shives
Advanced Energy Technology, Inc., Parma, OH
Gary Chen
Advanced Energy Technology, Inc., Parma, OH
Shrishail Guggari
Advanced Energy Technology, Inc., Parma, OH
Julian Norley
Advanced Energy Technology, Inc., Parma, OH
R. Andy Reynolds, III
Advanced Energy Technology, Inc., Parma, OH
Paper No:
IPACK2005-73073, pp. 79-89; 11 pages
Published Online:
March 4, 2009
Citation
Smalc, M, Shives, G, Chen, G, Guggari, S, Norley, J, & Reynolds, RA, III. "Thermal Performance of Natural Graphite Heat Spreaders." Proceedings of the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference. Advances in Electronic Packaging, Parts A, B, and C. San Francisco, California, USA. July 17–22, 2005. pp. 79-89. ASME. https://doi.org/10.1115/IPACK2005-73073
Download citation file:
28
Views
0
Citations
Related Proceedings Papers
A Comparison of Methods to Measure the Thermal Diffusivity of Anisotropic Graphite Heat Spreaders
InterPACK2013
Multi-Objective Parameterization of Graphite Heat Spreader for Portable Systems Applications
IMECE2007
Related Articles
Thermal Performance of Integrated Plate Heat Pipe With a Heat Spreader
J. Electron. Packag (September,2001)
Prediction and Measurement of Thermal Transport Across Interfaces Between Isotropic Solids and Graphitic Materials
J. Heat Transfer (February,2012)
Related Chapters
Introduction
Essentials of Electronic Packaging: A Multidisciplinary Approach
Group Decision Analysis for the Product Selection Problem of Notebook Computers Using Fuzzy AHP
International Conference on Computer and Computer Intelligence (ICCCI 2011)
Division 5—High Temperature Reactors
Online Companion Guide to the ASME Boiler and Pressure Vessel Codes