Abstract: A thermal module includes a conductive base disposed on a heat source for conducting heat generated by the heat source, and a plurality of thermal fins disposed substantially on the conductive base in parallel. A plurality of protruding portions is formed on each thermal fin in a direction whereto the thermal fins are stretched from the conductive base, and the protruding portions of adjacent thermal fins are arranged alternately in the direction whereto the thermal fins are stretched from the conductive base so as to dissipate the heat conducted to the conductive base from the heat source.