The stacked fin heat sink is made by using high pressure to press a special structure single profile and multiple profiles together into a complete heat sink. The stacked fin heat sink formed by this close-fitting method can realize the heat dissipation structure of upper and lower double bottom plates, and power devices can be installed on both sides.

Stacked fin (also known as the snapped fin) heat sinks are manufactured by stamping sheets of rolled aluminum or copper into a tightly formed array of fins. The character is neat on a metal plate with multiple parallel intervals arranged on the convex groove and the groove, and the groove under each convex slot on the top and bottom of each one vertical bending forming one cant, cant make the groove under a heat sink in a heat sink on convex slot can't agree with each other, so that the multiple heat sink stacked together to form a heat dissipation module. With a large heat dissipation area and simple assembly, convenient and fast.

Stacked fin solutions offer better performance when compared to the typical extrusion heat sink, due to thinner fin profiles leading to higher surface area and lower pressure drop. The stacked fin heat sink is often used in machines that need heat dissipation from both sides. From the appearance, both sides are the cooling base plate, the heat sink fins in the middle, and heat from both sides through the cooling base plate to the central fins for heat dissipation. It has the characteristics of low development cost, and can freely combine heat sink with different widths and structures. It has strong versatility and is widely used for heat dissipation of high-power equipment such as power frequency conversion transformers and engines.