Skived heat sinks are produced using a series of sharp knives that, as they pass over the material, curl up a small thickness of metal which is then bent vertically to form the fins.
Skived fins are produced from a bar of material which is approximately 16 feet in length and then cut to length as required by the final application. The final heat sink can be machined using normal fabrication techniques. The resulting heatsink structure has higher fin density compared to extruded heat sinks and also features an uninterrupted flow path for the heat because of its single-body construction.
Skived Fin heatsinks can be an alternative to extruded heat sinks when looking for a fin density which can’t be achieved by extrusion technology. Skived heat sinks can be manufactured from either copper or aluminum and usually have 0.5 (0.020”) thick fins. Because of the thin fins, care must be taken in handling to prevent damage.
Blow list is the skiving capacity for your reference:
