What are Zipper Fins?
Zipper fins are manufactured from stamped material typically aluminum or copper. They are folded into shape with interlocking grooves, this provides structurally stability while allowing for very high fin densities and fin aspect ratios. To form heat sink assembly they are typically soldered, brazed, or epoxied to a base.
Zipper fins are the most cost efficient method for high density heat sinks, as they have increased surface area as well as design flexibility when integrating heat pipes, fans or blowers.
Materials Used to Manufacture Zipper Fins: