CVD Diamond Heat Sinks
CVD diamond heat spreader materials for power electronics, semiconductor lasers, RF systems and advanced packaging. Standard grades and drawing-based dimensions are available for technical review.
- Designed for demanding heat-spreading applications
- Single-crystal and polycrystalline material options
- Specifications reviewed against your application, dimensions and estimated quantity
Material options for demanding thermal applications
Specify the required grade, dimensions, thickness, surface condition and quantity for technical review.
CVD diamond heat sink grades and dimensional options
Compare the available single-crystal and polycrystalline materials for CVD diamond heat sinks, including size, thickness and thermal-conductivity ranges.
Maximum Thermal Conductivity
Available for single-crystal CVD diamond heat sinks.
Single-Crystal Size
Available length and width range.
Single-Crystal Thickness
Thickness options are subject to specification review.
Polycrystalline Diameter
Available polycrystalline wafer diameter range.
| Product Type | Size Range | Thickness | Thermal Conductivity | Available Shapes |
|---|---|---|---|---|
| CVD Single-Crystal Diamond Heat Sink High Thermal Grade |
1–20 mm Length / width |
0.3–5 mm | >1,800 W/m·K | Rectangular, circular and custom geometries |
| CVD Polycrystalline Diamond Heat Sink Large-Area Material |
2–6 inch Diameter |
0.3–0.5 mm | 800–1,800 W/m·K | Wafers, square plates and custom laser-cut shapes |
Specifications vary by material grade, dimensions, thickness and product configuration. Final values must be confirmed during technical review.
Application Areas
CVD Diamond Heat Sink Applications
CVD diamond heat spreaders can be evaluated for thermal management in power electronics, semiconductor lasers, advanced packaging and RF systems. Final material selection depends on operating conditions, dimensions and integration requirements.
Power Electronics
CVD diamond heat spreaders may be evaluated for thermal management near high-power transistors, rectifiers and IGBT modules. Operating temperature, mounting method and interface conditions should be reviewed before material selection.
- Power Transistors
- Rectifiers
- IGBT Modules
Semiconductor Laser Systems
Diamond heat-spreading materials may be considered for thermal paths in semiconductor laser assemblies. Required dimensions, surface condition and integration method should be included in the technical review.
- Laser Diodes
- Laser Modules
- Thermal Interfaces
GaN and SiC Device Packaging
CVD diamond materials may be reviewed for thermal management in wide-bandgap semiconductor packaging. Device layout, heat load, electrical isolation and attachment requirements should be evaluated as part of the application.
- GaN Devices
- SiC Devices
- Advanced Packaging
RF and High-Reliability Electronics
Diamond heat spreaders may be evaluated for RF and other high-reliability electronic assemblies. Thermal load, frequency, component layout and dimensional tolerances should be supplied for engineering review.
- RF Systems
- Communications
- Electronic Modules
Need help evaluating a CVD diamond heat sink application? Prepare your operating conditions, dimensions, estimated quantity and available drawings for technical review.
Request an Application ReviewWHY CVD DIAMOND
Why CVD Diamond for Thermal Management?
CVD diamond combines high thermal conductivity, electrical insulation and low thermal expansion for heat-spreading components used in demanding electronic, laser and semiconductor systems.
High Thermal Conductivity
Available single-crystal CVD diamond grades can provide thermal conductivity above 1,800 W/m·K, supporting heat transfer in compact, high-power assemblies.
Electrical Insulation
Diamond transfers heat while remaining electrically insulating, making it suitable for applications where thermal and electrical requirements must be managed together.
Low Thermal Expansion
Low thermal expansion can support dimensional stability across repeated heating and cooling cycles in precision electronic and optical assemblies.
Single-crystal and polycrystalline CVD diamond options.
Review the available material formats and specification ranges below. Final dimensions, thickness, thermal performance and configuration are confirmed through technical review.
Single-Crystal CVD Diamond
Single-crystal CVD diamond material for thermal-management applications requiring compact dimensions and high heat-spreading performance.
- Length / width
- 1–20 mm
- Thickness
- 0.3–5 mm
- Thermal conductivity
- >1,800 W/m·K
- Available shapes
- Rectangular, circular and custom
Polycrystalline CVD Diamond
Polycrystalline CVD diamond material available in wafer, plate and custom-cut formats for larger-area thermal-management applications.
- Diameter
- 2–6 inch
- Thickness
- 0.3–0.5 mm
- Thermal conductivity
- 800–1,800 W/m·K
- Available formats
- Wafer, square plate and custom cut
Specification ranges vary by material grade and configuration. Final values are subject to technical review.
From application requirements to a confirmed project scope.
This four-step workflow helps align the application, material options, dimensions, quantity and drawings before an order proceeds.
Requirement Review
Review the application, operating conditions, dimensions, quantity and available drawings.
- Application and operating conditions
- Dimensions, quantity and drawings
Material & Specification Alignment
Compare applicable single-crystal or polycrystalline CVD diamond options against the submitted requirements.
- Material and grade options
- Standard or drawing-based format
Quotation & Order Confirmation
Confirm the proposed specification, project scope and commercial requirements before production.
- Proposed specification and scope
- Quantity and order requirements
Production & Delivery Coordination
Coordinate production and shipment according to the confirmed order requirements.
- Confirmed order requirements
- Packaging and shipment coordination
CVD diamond heat sink questions
Review common technical and purchasing questions about CVD diamond grades, dimensions, custom specifications, prototype quantities and quotation requirements.
How do single-crystal and polycrystalline CVD diamond differ?
Single-crystal CVD diamond is generally selected for compact components requiring high material uniformity and thermal performance. Polycrystalline CVD diamond is available in larger plate and wafer formats for applications requiring a wider heat-spreading area. Material selection should be based on the required dimensions, thermal target and integration method.
What thermal conductivity grades are available?
Available thermal conductivity depends on whether the application uses single-crystal or polycrystalline CVD diamond, as well as the selected material grade and product configuration. Provide your target thermal performance so the appropriate option can be reviewed.
What sizes, thicknesses and shapes are available?
The available size and thickness range depends on the CVD diamond material type and grade. Rectangular, circular, plate, wafer and drawing-based shapes may be reviewed. Submit the required length, width, thickness, tolerance and quantity for confirmation.
Can you supply CVD diamond to a custom drawing?
Drawing-based requirements can be reviewed for dimensions, thickness, tolerances, shape, surface condition and quantity. Upload a PDF, CAD export or specification document with your technical inquiry. Final feasibility is confirmed during the technical review.
Can I request samples or prototype quantities?
Sample and prototype requests can be reviewed according to the selected material grade, dimensions and quantity. Include the intended application and expected production requirement so availability can be evaluated.
What information should I provide for a technical review and quotation?
Provide the application, operating conditions, preferred material type, required dimensions, thickness, tolerances, thermal target, estimated quantity and any available drawings. Complete information helps the technical team evaluate the requirement and prepare an appropriate quotation.
Request a CVD diamond technical review.
Share your application, target performance, dimensions, estimated quantity and available drawings. Our team will review the information before preparing a technical response.
Application
Describe where the CVD diamond heat sink will be used and the relevant operating conditions.
Specifications
Provide dimensions, thickness, tolerances, thermal targets and any available drawings.
Quantity
Indicate whether you require prototypes, samples or an estimated production quantity.
Submit your heat sink requirements
Fields marked with * are required. Upload drawings or specifications when available.