Diamond Heat Sink
Diamond Heat Sink is an ultra-high thermal conductivity thermal management material designed for advanced electronic packaging, semiconductor devices, laser systems, RF modules, and high-power optoelectronic applications. Compared with conventional copper, aluminum, and copper-tungsten materials, synthetic diamond provides significantly higher thermal conductivity while maintaining low thermal expansion characteristics. Through precision CVD diamond synthesis, metallization treatment, and high-accuracy machining, China Super Tech Co., Ltd. delivers thermal solutions capable of rapidly dissipating localized heat, reducing thermal resistance, and improving long-term device reliability in demanding operating environments.
- Product Introduction
Product Introduction
Diamond Heat Sink is an ultra-high thermal conductivity thermal management material designed for advanced electronic packaging, semiconductor devices, laser systems, RF modules, and high-power optoelectronic applications. Compared with conventional copper, aluminum, and copper-tungsten materials, synthetic diamond provides significantly higher thermal conductivity while maintaining low thermal expansion characteristics. Through precision CVD diamond synthesis, metallization treatment, and high-accuracy machining, China Super Tech Co., Ltd. delivers thermal solutions capable of rapidly dissipating localized heat, reducing thermal resistance, and improving long-term device reliability in demanding operating environments.
Product Features
1.Ultra-High Thermal Conductivity for Hot Spot Elimination
Diamond possesses thermal conductivity far exceeding traditional heat sink materials. This allows heat generated by semiconductor junctions or laser chips to spread rapidly across the substrate, reducing localized thermal accumulation that can shorten component lifespan or degrade performance.
(1)Lower junction temperature
(2)Improved power density
(3)Enhanced device stability
(4)Extended operational lifetime
2.Low Coefficient of Thermal Expansion for Packaging Reliability
One of the major causes of electronic package failure is thermal stress caused by mismatched expansion rates between materials.
By carefully controlling crystal growth and material structure, the diamond substrate exhibits thermal expansion characteristics closer to semiconductor materials such as GaN, SiC, and certain ceramic packages.
(1)Reduced solder fatigue
(2)Lower risk of delamination
(3)Improved thermal cycling performance
(4)Greater package integrity during long-term operation
3.High Purity CVD Diamond Manufacturing
China Super Tech Co., Ltd. utilizes advanced Chemical Vapor Deposition (CVD) technology to produce high-purity synthetic diamond.
Unlike lower-grade materials containing graphitic inclusions or impurities, controlled deposition processes help achieve:
(1)Consistent thermal conductivity
(2)Uniform crystal structure
(3)Stable performance across batches
(4)Improved reliability for critical applications
This level of consistency is particularly important for aerospace, telecommunications, and semiconductor industries where thermal failure can result in significant operational losses.
4.Precision Metallization for Efficient Heat Transfer
Raw diamond cannot be directly integrated into most electronic assemblies.
Our specialized metallization processes create robust bonding layers on the diamond surface, enabling reliable attachment to copper, molybdenum, ceramic, and semiconductor components.
This significantly reduces interface thermal resistance and improves overall heat dissipation efficiency.
Applications
1.High-Power Semiconductor Devices
Modern GaN and SiC power devices generate extremely high heat flux within compact footprints.
The material rapidly spreads heat away from the active junction area, preventing excessive temperature rise that can reduce switching efficiency and accelerate device degradation.
Typical uses include:
(1)Power amplifiers
(2)High-frequency switching modules
(3)Power conversion systems
(4)Electric vehicle electronics
2.Laser Diode and Photonics Systems
Laser performance is highly sensitive to temperature fluctuations.
Diamond-based thermal management helps maintain wavelength stability and output power consistency by efficiently removing heat from the laser chip.
Common applications include:
(1)Industrial laser systems
(2)Medical laser equipment
(3)Fiber optic communication modules
(4)Defense-grade photonic devices
3.RF and Microwave Electronics
RF components often operate at high frequencies where thermal accumulation can directly affect signal quality and device efficiency.
The superior heat spreading capability improves thermal stability and supports higher operating power levels.
Suitable for:
(1)Radar systems
(2)Satellite communications
(3)5G infrastructure
(4)Aerospace RF modules
4.Advanced Semiconductor Packaging
As semiconductor packaging becomes increasingly compact, thermal management becomes a critical bottleneck.
The material helps reduce package thermal resistance and supports next-generation high-density electronic architectures requiring superior heat dissipation performance.
Custom Manufacturing Services
1.Tailored Thermal Solutions from Design to Production
China Super Tech Co., Ltd. provides complete customization services based on thermal requirements, package architecture, and assembly methods.
Available customization options include:
(1)CVD diamond thickness optimization
(2)Custom dimensions and geometries
(3)Metallized surface coatings
(4)Multi-layer thermal structures
(5)Composite copper-diamond assemblies
(6)Semiconductor package integration solutions
2.In-House Material and Processing Control
By controlling diamond growth, precision machining, and metallization processes internally, we minimize performance variation and ensure consistent thermal characteristics from prototype to mass production.
3.High-Precision Machining Capability
Advanced grinding and polishing technologies enable tight dimensional tolerances and superior surface flatness, critical for reducing interface thermal resistance.
4.Engineering-Based Thermal Design Support
Our engineering team assists customers in selecting the optimal material configuration based on heat flux, operating temperature, package structure, and reliability requirements rather than offering generic off-the-shelf solutions.
5.Reliable Supply for Critical Industries
Strict quality control and traceability systems support demanding sectors such as aerospace, semiconductor manufacturing, telecommunications, medical technology, and defense electronics.
Specifications
|
Parameter |
Specification |
|
Material Type |
CVD Synthetic Diamond |
|
Purity Level |
High Purity Electronic Grade |
|
Thermal Conductivity |
1200–2200 W/m·K |
|
Density |
3.5–3.52 g/cm³ |
|
Thermal Expansion Coefficient |
0.8–1.5 ×10⁻⁶/K |
|
Thickness Range |
0.1–2.0 mm |
|
Length & Width |
Customizable |
|
Surface Finish |
Polished / Precision Ground |
|
Surface Roughness |
Ra ≤ 0.05 μm Available |
|
Metallization Options |
Ti/Pt/Au, Ti/Au, Ni/Au and Custom Systems |
|
Operating Temperature |
Customized According to Application |
|
Shape Options |
Square, Rectangular, Circular, Custom Design |
|
Manufacturing Standard |
Customer Drawing or Technical Specification |
FAQ
1.Why choose diamond instead of copper heat sinks?
Copper offers thermal conductivity around 400 W/m·K, while high-quality CVD diamond can exceed 2000 W/m·K. This enables much faster heat spreading and significantly lower thermal resistance in high-power electronic applications.
2.Is synthetic diamond as effective as natural diamond?
For thermal management applications, high-quality CVD diamond is often preferred because its thermal properties, purity, dimensions, and consistency can be tightly controlled during manufacturing.
3.Can the material be directly bonded to semiconductor devices?
Yes. Through metallization treatments such as Ti/Pt/Au or Ni/Au coatings, the material can be integrated into various semiconductor packaging and thermal management structures.
4.What industries benefit most from this solution?
Industries with extremely high heat density requirements gain the greatest advantages, including semiconductor manufacturing, aerospace electronics, RF communications, laser technology, medical devices, and advanced defense systems.
5.Can China Super Tech Co., Ltd. manufacture according to drawings?
Yes. We support full OEM and custom manufacturing services based on customer drawings, thermal requirements, dimensional specifications, surface treatments, and assembly requirements.
6.How do I select the correct thermal solution?
Our engineering team can evaluate operating temperature, heat flux, chip size, package structure, mounting method, and reliability targets to recommend the most suitable configuration for your application.
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