Nexus says the PHT-3600 is skivved from a single piece of aluminum. This concept permits the production of heat sinks with a precise and super fine detail previously considered impossible. SkiveTek ® represents a process of shaping materials to produce lightweight, high fin density thermal solutions. Base plate and fins are constructed out of one piece of pure aluminum or copper by cutting the material into thin layers, bending the fins in place. No bonding, welding, soldering or adhesive is involved. The joint between fin and base is continuous aluminum or copper.