A multiple pin heatsink device with U-shaped wire elements mechanically swaged into channels of a base element is provided. In the manufacture of the multiple pin heatsink, pins of the U-shaped wire element are introduced into respective pin receiving holes present in the upper surface of a die member...http://www.google.se/patents/US5499450?utm_source=gb-gplus-sharePatent US5499450 - Method of manufacturing a multiple pin heatsink device