Heat sink

Abstract

Disclosed herein is a heat sink including: a first region connected to a cooling water introduction part and having a plurality of first pins arranged therein; and a second region connected to a cooling water discharge part and having a plurality of second pins arranged therein.

What is claimed is: 
     
         1 . A heat sink comprising:
 a first region connected to a cooling water introduction part and having a plurality of first pins arranged therein; and   a second region connected to a cooling water discharge part and having a plurality of second pins arranged therein.   
     
     
         2 . The heat sink as set forth in  claim 1 , further comprising:
 one or more regions provided between the first and second regions and having pins arranged therein, the pins having a surface area greater than that of the first pins and smaller than that of the second pins.   
     
     
         3 . The heat sink as set forth in  claim 1 , wherein a space between the first pins arranged in the first region is greater than that between the second pins arranged in the second region. 
     
     
         4 . The heat sink as set forth in  claim 1 , wherein a total area of the sides that cooling water faces perpendicularly in the second region is greater than a total area of the sides that the cooling water faces perpendicularly in the first region. 
     
     
         5 . The heat sink as set forth in  claim 1 , further comprising:
 a cover member covering the first and second regions.   
     
     
         6 . The heat sink as set forth in  claim 1 , wherein the heat sink is made of copper (Cu) or aluminum (Al). 
     
     
         7 . A heat sink comprising:
 a first region having a plurality of first pins arranged therein;   a second region having a plurality of second pins whose surface area is larger than that of the first pins, and formed to be adjacent to the first region; and   a third region having a plurality of third pins whose surface area is larger than that of the second pins, and formed to be adjacent to the second region.   
     
     
         8 . The heat sink as set forth in  claim 7 , wherein the first region is connected to a cooling water introduction part, the third region is connected to a cooling water discharge part, and a total area of the sides that cooling water faces perpendicularly in the second region is greater than a total area of the sides that the cooling water faces perpendicularly in the first region. 
     
     
         9 . The heat sink as set forth in  claim 7 , wherein the first region is connected to a cooling water introduction part, the third region is connected to a cooling water discharge part, and a total area of the sides that cooling water faces perpendicularly in the third region is greater than a total area of the sides that the cooling water faces perpendicularly in the second region. 
     
     
         10 . The heat sink as set forth in  claim 7 , wherein the first pins, the second pins, and the third pins are arranged at regular intervals in the first region, the second region, and the third region, respectively. 
     
     
         11 . The heat sink as set forth in  claim 10 , wherein a space between the first pins arranged in the first region is greater than that between the second pins arranged in the second region. 
     
     
         12 . The heat sink as set forth in  claim 10 , wherein the space between the second pins arranged in the second region is greater than that between the third pins arranged in the third region. 
     
     
         13 . The heat sink as set forth in  claim 7 , wherein the heat sink is made of copper (Cu) or aluminum (Al). 
     
     
         14 . The heat sink as set forth in  claim 7 , further comprising:
 a cover member covering the first, the second, and the third regions.