thin heat sinks thinnest heat sinks esd wrist strap THIN HEAT SINKS Most thin heat sinks are anodized aluminum. No matter how good production methods are, the metal surfaces of the thin heat sink and the metal mating surface of the semiconductor will not be totally smooth Such an arrangement can be fabricated by cleaving linear diode laser arrays from a wafer, attaching them to thin heat sinks, and stacking these assemblies so as to obtain a periodic array of diode bars and heat sinks. Thin-fin heat sinks have passed the following tests: heat aging and high temperature. If the thin heat sink is electrically conductive, you must have some sort of insulator between the semiconductor and the sink to avoid a short circuit. The anodizing process creates a thin heat sink aluminum oxide layer which is an electrical insulator. This is a very effective thermal conductor. Some electrical insulators are more efficient than others in transferring heat from a semiconductor to the thin heat sink. Designer and manufacturer of high efficiency thin heat sinks, fan sinks and accessories for high end electronics. This step is only if your heatsinks have super thin fins just like mine.