Aluminum Skived Fin Heat Sink

Aluminum Skived Fin Heat Sink

Precision High-Density Cooling for Extreme Thermal Challenges

 

The skived fin heat sink is named after the manufacturing process used to create its fins. In this process, a solid block of aluminum is shaved or skived to produce thin, closely spaced fins. The result is a highly efficient and compact design that provides a large surface area for heat dissipation while maintaining a relatively small form factor.

 

 

Since the fin and the base plate belong to the same material, there is no contact thermal resistance between the heat dissipation teeth and the base plate, and the ratio of the height of the teeth to the spacing of the teeth is very large (copper can reach 25, aluminum can reach 60), so the cut The heat dissipation fins are thin and dense, which greatly increases the heat dissipation area. Even if the air volume is reduced, the radiator can still achieve a good heat dissipation effect, thereby greatly reducing the noise generated by the fan, and can dissipate a large amount of heat in a limited space to meet the heat dissipation requirements.

 

Break through thermal density barriers with our Aluminum Skived Fin Heat Sinks – engineered for applications where conventional extrusion reaches its limits. Utilizing advanced skiving technology, we create ultra-thin fin cooling solutions (0.3-1.2mm thickness) with aspect ratios up to 25:1, achieving 40% greater surface density than extruded alternatives. Our precision-skived thermal assemblies deliver unmatched heat dissipation for high-flux semiconductors, power modules, and laser systems where every micron of thermal interface matters. Each unit undergoes CFD optimization to ensure your high-performance skived sinks overcome thermal bottlenecks while maintaining structural integrity under extreme conditions.

 

 

 

Product name	Aluminum skived fin heat sink
Materials	Aluminum
Finish	Anodized, Plating, Brushing, Polishing, Powder coating, Sandblasting,
Inspection Equipment	CMM, Projector, Calipers, Micro caliper, Thread Micro caliper, Pin gauge, Caliper gauge, Pass meter, Pass meter etc.
Certification	ISO 9001 SGS
Accuracy	Accuracy Of Machining:+/-0.05mm
	Accuracy Of Grinding:+/-0.05mm
	Surface Roughness:Ra0.8
	Parallelism:0.01mm
	Verticality:0.01mm
	Concentricity:0.01mm
Drawing format	PDF DWG/DXF IGS/STP Picture
Origin Country	Foshan, Guangdong,China
MOQ	No Limit For MOQ, Any Quantity Is OK
Lead Time	Extrusion tooling: 20 days after the drawing confirmed
	Diecast tooling and plastic tooling : 45 days after the drawing confirmed
	CNC sample: within 10 days after the drawing confirmed
	Mass Production: 35 days after the sample approval
Package	Product to carton directly with cardboard
	Product in Blister to carton
	Product in wood box (for heavy product)
	Product in inner box to carton

 

 

 

The skived fin heat sink has higher fin density, increasing the heat dissipation area and improving the heat dissipation performance The fin height of the skived fin heat sink can reach 120mm, which fully meets the production needs of most heat sinks. The teeth of the skived fin heat sink can be made thinner, generally 1.5mm or even 1.0mm, which can make the heat sink lighter The skived fin heat sink is shoveled on the prototype material, so the heat dissipation efficiency is not damaged, reaching 100% of the heat dissipation efficiency of the prototype material, and there is no risk of loosening and falling off, which improves the reliability of machine operation. The skived fin heat sink has high compatibility, and the possibility of post-processing is also large. It can also be combined with the buried heat pipe process to improve the heat dissipation performance.

 

 

Unmatched Fin Density: Achieves 50 FPI skived heat sink configurations impossible with extrusion

Monolithic Construction: Base-to-fin integrity eliminates thermal interface resistance

Micro-Fin Precision: ±0.02mm thickness consistency across full assemblies

Directional Thermal Optimization: Angled/curved fins for targeted airflow

Vibration-Resistant Design: Proprietary fin-root reinforcement

High-Flux Capability: Direct die-attach surfaces with Ra ≤0.4μm

Custom Topology: Step-skived designs for multi-level components

Corrosion Protection: MIL-DTL-5541 compliant finishes

 

 

Skived fin heat sink have low tooling cost, a high fin aspect ratio & thin fins, which can easily become bent and thus hamper the thermal performance. They can be used in medium to high-performance applications:

 

GPU/CPU Server Cooling (AI/Data Center Racks)

EV Power Modules (SiC Inverters, OBCs)

Laser Diode Arrays (Fiber, CO₂, Direct-Diode)

RF Power Amplifiers (5G mMIMO, Radar)

Medical X-Ray Generators

Industrial IGBT Stacks

Aerospace Avionics

Semiconductor Test Handlers

 

 

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