Brazing process,Bonding Fin process,

High Fin Density Heat Sinks provide increased efficiency for high power applications under forced convection by creating greater volumetric surface area and are classified into two types: High Aspect Ratio Extrusions and Fabricated Fin Assemblies. Although both types offer considerable performance gains over standard extrusions, Fabricated Fin Assemblies are constructed from a base and have independent fins, which allow greater aspect ratios1 than current extrusion processes. These heat sinks can be assembled using a variety of fin types such as stamped, folded, or zipper which are attached to a base using epoxy bonding, swaging, brazing, or soldering.