Heat sink with multiple micro bosses

Abstract

A heat sink includes multiple heat dissipating fins each with two opposite side walls. Multiple micro bosses are formed on a periphery of the heat dissipating fin. Each heat dissipating fin is securely connected to an adjacent heat dissipating fin via secure engagement between the side walls and a bottom face of the adjacent heat dissipating fin. Each micro boss is in the order between 10 −6 to 10 −9 mm so that laminar effect to decrease heat dissipating capability of the heat sink is avoided.

What is claimed is:  
     
         1 . A heat sink comprising: 
 multiple heat dissipating fins each provided with two opposite side walls and multiple micro bosses formed on a periphery of the heat dissipating fin; each heat dissipating fin securely connected to an adjacent heat dissipating fin via secure engagement between the side walls and a bottom face of the adjacent heat dissipating fin, wherein each micro boss is in the order between 10 −6  to 10 −9  mm.    
     
     
         2 . The heat sink as claimed in  claim 1 , wherein each heat dissipating fin further has a through hole and after the heat dissipating fins are securely connected to one another, the through holes are aligned with and communicated to each other.  
     
     
         3 . The heat sink as claimed in  claim 2  further comprising a heat conducting bar extending into the aligned through holes to securely engage with each one of the heat dissipating fins.  
     
     
         4 . The heat sink as claimed in  claim 2 , wherein a flange is formed around a periphery defining the through hole.  
     
     
         5 . The heat sink as claimed in  claim 3 , wherein a flange is formed around a periphery defining the through hole so that after the heat conducting bar extends into the aligned through holes, the heat conducting bar is able to securely engage with each one of the heat dissipating fins via the flanges.