CVD Diamond Heat Spreaders for High-Power Systems
Specify the complete heat path, not just a material value. Define the crystal route, geometry, surface, interface, joining method and verification before quotation.
Define a diamond heat spreader from the full heat path.
A heat spreader moves concentrated heat into a wider area. It is one element in a complete thermal assembly that may also include interfaces, metallization, joints, a base, fins or cooling hardware.
Define CVD diamond by crystal route, geometry, surface, temperature, test method and boundary resistance. Quotation therefore starts with the complete heat path—not a context-free conductivity maximum.
- 01Heat sourceHotspot · footprint · duty cycle
- 02Joining interfaceAttachment route · contact boundary
- 03CVD diamondCrystal route · geometry · surface
- 04Cold-side systemPackage · base · cooling boundary
Choose the device context before choosing the plate.
Each scene changes the inputs that belong in the drawing, interface plan and acceptance review. The images are independent references, not DiamovaLab cases.
Concentrated heat beneath a compact package
Licensed industry reference · not a DiamovaLab customer project
Hotspot control inside a constrained RF package
CC0 industry reference · not a DiamovaLab device or case study
Stable heat removal around an optical source
NASA/JPL reference · not a DiamovaLab product photograph
Move heat into the downstream cooling system
Licensed industry reference · not a DiamovaLab deploymentBuild the part around interfaces, geometry and proof.
Each decision changes the drawing, interface plan and evidence that should accompany the proposed material. Available dimensions and performance values are confirmed for the specific project.
One material sits inside four engineering boundaries.
Use the stack to separate the source, joining layer, diamond part and downstream cooling structure before a performance claim is reviewed.
- 01
Heat path and hotspot
Map the source, target temperature, footprint, heat-flow direction and surrounding package constraints.
- 02
Geometry and surface
Lock length, width, thickness, tolerances, flatness, roughness and edge requirements from the drawing.
- 03
Interface and verification
Define metallization or joining needs and the test method, temperature and acceptance evidence required.
Turn the drawing into a quote-ready scope.
Use the four groups below to keep buyer requirements, drawings and acceptance evidence attached to the same part definition before quotation.
01Thermal taskDescribe the system problem.
- Application
- Power device, RF package, laser module or other operating context
- Buyer-defined
- Thermal requirement
- Target plus temperature, direction and test or guarantee method
- Model or report required
02Part definitionLock material route and geometry.
- Crystal route
- Single-crystal, polycrystalline or open selection
- Client product matrix required
- Dimensions
- Length × width × thickness, drawing and edge details
- Client capability range required
03Surface and interfaceDefine what touches the part.
- Flatness and surface
- Flatness, bow or warp, Ra and polished-face requirement
- Inspection evidence required
- Metallization
- Stack, thickness, patterned area, tolerance and adhesion need
- Capability evidence not yet confirmed
- Joining
- Solder, braze, bonding or downstream assembly method
- Compatibility evidence required
04Commercial frameSet the review boundary.
- Commercial scope
- Sample or production quantity, required date and destination
- MOQ and lead time required
- Acceptance evidence
- Required report, sample identity, test method and approval rule
- Agree before quotation
Separate material data from interface and assembly claims.
A material result does not by itself establish interface or assembled-device performance. Keep material, surface or joining, and device-level evidence attached to the correct project layer.
Three views, three distinct review roles.
Use the photographs to review visible form—not to infer construction. The range view shows form variety, the square view supports surface discussion, and the paired rectangular view supports edge and repeatability questions.
Visible sample range
Project-supplied visual · website use authorized 2026-08-25 · form range only; construction and availability are confirmed per quotation
Square sample form
Project-supplied visual · website use authorized 2026-08-25 · surface appearance only; material system and finish are not inferred
Rectangular sample forms
Project-supplied visual · website use authorized 2026-08-25 · paired rectangular forms; dimensions and assembly status are not inferred
Material evidence
Crystal type, sample identity, dimensions, test direction, temperature, method and measured or guaranteed result.
Independent material reference · not a DiamovaLab test result
Interface evidence
Surface condition, metallization stack, thickness, adhesion, solderability or bonding compatibility with defined test conditions.
Licensed metrology reference · not a DiamovaLab laboratory or instrument
Assembly evidence
Only a verified module build and device-level test may support claims about a finished heat sink, package or customer outcome.
Public-domain reference · not a DiamovaLab module testPrepare a reviewable heat-spreader enquiry
Four review moments keep the requirement, evidence and commercial assumptions attached to the same part definition.
01Licensed reference context Map the source
Identify hotspot size, power envelope, current thermal path and the temperature problem to be solved.
02AI illustrative context Attach geometry
Supply a drawing with dimensions, tolerances, surface, flatness and downstream assembly constraints.
03AI illustrative context Define acceptance
State the thermal, dimensional, surface or interface evidence your engineering team expects.
04AI illustrative context Confirm commercial terms
A factual proposal can be completed after available material, sample policy, MOQ and lead time are verified.
Questions engineers and buyers resolve before approval
These answers keep the material, interface and finished thermal assembly distinct without hiding the terms buyers use to find this page.
01What is the difference between a diamond heat spreader and a diamond heat sink?
A heat spreader distributes heat from a concentrated source across a larger area. A complete heat sink usually adds structures that reject heat to air, liquid or another cooling system. DiamovaLab currently reviews the diamond spreader requirement rather than presenting a finished heat-sink module line.
02Does 2,000 W/(m·K) describe every CVD diamond heat spreader?
No. A conductivity value needs crystal type, direction, temperature, sample condition and measurement method. Device performance also depends on geometry and interfaces, so this page does not publish a context-free universal value.
03Can a heat spreader be supplied with metallization?
The project brief can capture metallization stack, thickness, patterned area, tolerance and joining requirements. Supply scope and supporting evidence are confirmed for the requested part before they are included in a quotation.
04What information reduces the first engineering review cycle?
Provide the application, heat-source footprint, dimensions, thickness, flatness, surface, interface or joining method, quantity, required date and the test evidence needed for approval.
