CVD synthetic diamond heat spreader

Reactor time, not raw material, is the constraint. Growing optical-grade polycrystalline diamond is slow, and the qualified capacity is held by a handful of firms.

Grade that ships · Polycrystalline CVD diamond, 10 × 10 mm, metallised to specification.

Part of the process · Materials & tools, which takes years, per qualification to loosen once somebody decides to.

5How this is computedSum of four judged scores, each 0–3: concentration + substitution + lead time + inelasticity.Method →Code →Check this number with Ask / 12

Several growers, and copper or SiC do the job for most parts today. Binds only if diamond becomes the standard spreader for high-power dies.

• Diamond heat spreaders in production packaging5/9Estimate, not a measurementUsed in specialist radio-frequency and laser parts; not standard in high-volume logic packaging.By Substrata, open to challenge · 2026-09-15Supporting source →Check this number with Ask · Works in a realistic setting

  Wider adoption is what would make this a bottleneck; today the constraint is cost, not supply.

All science →

1. Research64 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)+3 (Computed: Items first collected in the last 7 days whose publication or award date is within the last 30 days.) new
2. Lab11 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
3. Pilot0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
4. Early0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
5. Scale0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)

judged, with a citation claimed, no citationNumber: papers, preprints and grants the feeds collected — unreviewed

• Paper2026-10-09International Journal of Heat and Mass Transfer0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  Thermal and mechanical modulation of interfacial thermal resistance in GaN/diamond heterostructures based on machine learning potentials ↗

  Heterogeneous integration of high-thermal-conductivity diamond with gallium nitride (GaN) represents a compelling paradigm to break through the thermal dissipation bottlenecks in high-power electronics. However, the intrinsic acoustic mismatch between GaN and diamond gives rise…

  Harbin Institute of TechnologyNortheastern University

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOI

• Paper2026-10-01Journal of Manufacturing Processes0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  Enhanced tribological performance of snowflake-textured CVD diamond coatings under nanofluid lubrication ↗

  To mitigate the significant tribological degradation of chemical vapor deposition (CVD) diamond coatings under high thermal load conditions, this study proposes a synergistic approach to enhance their tribological performance through biomimetic snowflake microtextures and…

  Applied / lab · Says "fabricated".From OpenAlex · not yet reviewedDOI

• Paper2026-10-01Diamond and Related Materials0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  X-ray optical properties of CVD diamonds ↗

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOI

• Paper2026-10-01Review of Scientific Instruments0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  Design of a diamond-based in-vessel soft x-ray camera system for the SPARC tokamak ↗

  Soft x-ray tomography has been used in tokamaks for decades to interrogate a wide variety of phenomena; however, the standard silicon diodes coupled with beryllium filters will not be able to survive the high heat and neutron fluxes present in burning plasma devices like SPARC…

  Massachusetts Institute of TechnologyCommonwealth Fusion Systems (United States)National Agency for New Technologies, Energy and Sustainable Economic DevelopmentUniversity of Rome Tor Vergata

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOIPDF

• Paper2026-09-30Crystals0SourcedOpenAlex, as fetchedOpen the source →Check this number with Ask citations

  Color Modification and Defect Evolution of Type IIa CVD-Grown Diamonds During HPHT, Irradiation, and Annealing Treatments ↗

  With the rapid expansion of laboratory-grown diamond production, post-growth color modification has become an essential route to enhance the value of CVD-grown diamonds. In this study, five faceted type IIa CVD-grown diamonds (round brilliant cut) were processed through HPHT…

  Gemstone FoundationChina University of Geosciences (Beijing)State Key Laboratory of Geological Processes and Mineral Resources

  Fundamental research · No laboratory or pilot wording.From OpenAlex · not yet reviewedDOI

The full pipeline, by stage →

• Energyone turn: Months to years

  Worst judgement on this loop: 11 of 12How this is computedThe highest severity score among the bottlenecks recorded as gates on the loop.Method →Code →Check this number with Ask, judged 2026-09-15

• Materials qualificationone turn: Years

  Worst judgement on this loop: 11 of 12How this is computedThe highest severity score among the bottlenecks recorded as gates on the loop.Method →Code →Check this number with Ask, judged 2026-09-15

A loop is one design, build and measure turn. Severity is a dated judgement on a 0–12 scale, not a measurement, and the judgements are not added together — the figure shown is the worst single one.

• Diamond heat spreaders in production packagingrelieved by

  source-backed readiness judgement