Diamond Thermal Conductivity
Why high-quality synthetic diamond is used to spread heat away from compact electronics.
What this topic covers
Why high-quality synthetic diamond is used to spread heat away from compact electronics.
Core engineering ideas
Diamond can conduct heat extremely well while remaining electrically insulating when undoped.
Thermal performance varies with crystal quality, isotopic composition, defects, grain boundaries and interfaces.
A heat spreader is only one element of the thermal path; attachment layers and the rest of the package can dominate total thermal resistance.
System tradeoffs
A property table is only a starting point. Crystal quality, orientation, defects, grain structure, surface finish and interfaces determine real component performance.
Quality and verification
Material selection should compare diamond with less costly alternatives under the same temperature, loading, chemistry and lifecycle conditions.
Lifecycle perspective
Synthetic production and recycling expand supply options, while refurbishment can extend the useful life of diamond-bearing tools.