Frosty Tech has posted a review on the Zalman CNPS3100 Copper FHS Heatsink

I´m really not sure where the Zalman heatsinks fit into this equation, or for that matter what to call them... We´ve seen extruded, cast, cold forged, assembled, bonded fin, and Orb heatsinks along with any number of copper-aluminum hybrid variations.

The Zalman CNPS3100 is probably the first "Flower Heatsink" (FHS) you´ve ever seen. What makes this a Flower-type heatsink, is how the CNPS3100 is constructed. Where extruded heatsinks are one-piece affairs, this heatsink is made up of 50 individual pure-copper patterned fins, and two aluminum blocks which are held together with two stainless steel bolts. The base of this heatsink is milled absolutely flat, and is razor smooth. That in itself is something rare to see these days.

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