Experimental considerations of CVD diamond film measurements using time domain thermoreflectance

Thomas L. Rougher, Luke Yates, Zhe Cheng, Baratunde A. Cola, Samuel Graham, Ramez Chaeito, Aditya Sood, Mehdi Ashegi, Kenneth E. Goodson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

Diamond has the highest known thermal conductivity of any known bulk material, but the properties of synthetic diamond films often fall far short of this high level. The DARPA program Thermal Transport in Diamond Films for Electronics Thermal Management brings together researchers from five universities to comprehensively characterize the thermal transport and material properties of CVD diamond thin films in an effort to better how to further improve the thermal transport properties and understand how accurately these properties can be measured using time domain thermoreflectance and Raman spectroscopy. Here we summarize the results of the thermal measurements of diamond conducted via time domain thermoreflectance (TDTR) using two different systems and discuss some difficulties of accurately measuring the thermal conductivity of micron-thick anisotropic films that often have high surface roughness. We also report that in certain cases the thermal conductivity and thermal boundary conductance of CVD diamond films has been improved to the point of making them highly attractive for thermal management of high power electronic devices.

Original languageEnglish (US)
Title of host publicationProceedings of the 16th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages30-38
Number of pages9
ISBN (Electronic)9781509029945
DOIs
StatePublished - Jul 25 2017
Externally publishedYes
Event16th IEEE InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2017 - Orlando, United States
Duration: May 30 2017Jun 2 2017

Publication series

NameProceedings of the 16th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2017

Conference

Conference16th IEEE InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2017
Country/TerritoryUnited States
CityOrlando
Period5/30/176/2/17

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Fluid Flow and Transfer Processes
  • Electrical and Electronic Engineering

Keywords

  • Diamond
  • Thermal Conductivity
  • Thermal Management
  • Time Domain Thermoreflectance

Fingerprint

Dive into the research topics of 'Experimental considerations of CVD diamond film measurements using time domain thermoreflectance'. Together they form a unique fingerprint.

Cite this