Folded Fin Heatsink Overview
Manufacturing and Materials
Folded fin heatsinks are made by folding thin metal sheets-typically aluminum or copper-into a corrugated or folding pattern. This process provides a high surface area with low material usage. The folded fins are then attached to a base plate through soldering, brazing, or thermal adhesive bonding.
Common materials:
Aluminum – lightweight, cost-effective, and thermally efficient.
Copper – superior thermal conductivity, ideal for high-power devices.
Key Advantages
High aspect ratio fins increase heat dissipation area.
Lightweight and compact structure.
Excellent for both passive and forced-air cooling.
Can be easily combined with other thermal manufacturing processes for enhanced performance.
Compatible Secondary Processes
Folded fin heatsinks can be further customized with processes such as:
CNC machining, Drilling, Tapping, Stamping, Anodizing, Screen printing, Powder coating, Laser etching, and Polishing.
These processes improve surface protection, mechanical precision, and visual appeal.
The Benefits of Combined heat sink
Due to their lightweight nature and efficient thermal performance, folded fin heatsinks are often soldered to aluminum base plates using solder paste.
The aluminum base plate provides structural strength and excellent heat conduction from the heat source, while the folded fins greatly expand the surface area in contact with air, achieving a synergistic cooling effect - "1 + 1 > 2."
Awind's Expertise
Awind has years of experience in manufacturing combined-type heatsinks using folded fin and base plate designs.
We have successfully produced aluminum folded fin + aluminum base plate and copper folded fin + aluminum base plate heatsinks for various high-power applications, such as amplifiers (AMP).
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