Abstract
The record-high thermal conductivity of high-quality diamond makes it a natural choice for many applications in thermal management. The columnar microstructure of chemical-vapor-deposited diamond thick films, however, causes anisotropy and a strong gradient in the conductivity, both of which can be understood in terms of phonon-scattering defects that aggregate near grain boundaries. Techniques to take maximum advantage of the high thermal conductivity include the removal of fine-grained low-conductivity material near the substrate surface and the provision of excellent thermal contact between the diamond and heat sources or sinks.
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J.E. Graebner earned his Ph.D in physics at Northwestern University in 1967. He is a member of the technical staff at Bell Laboratories, Lucent Technologies.
S. Jin earned his Ph.D in materials science at the University of California at Berkeley in 1974. He is currently technical manager at Bell Laboratories, Lucent Technologies. Dr. Jin is also a member of TMS.
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Graebner, J.E., Jin, S. Chemical vapor deposited diamond for thermal management. JOM 50, 52–55 (1998). https://doi.org/10.1007/s11837-998-0129-5
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DOI: https://doi.org/10.1007/s11837-998-0129-5