| 摘要 |
A method for making a ultra-thin fin heat sink includes the following steps. First, a continuous elongated heat sink bar is made by, the extrusion procedure wherein such heat sink bar is formed with a plurality of parallel closely spaced ultra-thin fins integrally extending from a base. Liquid type wax is injected into the space between every two adjacent fins until such space is completely filled with the wax. The wax is solidified after a while, and then the whole assembly including the heat sink bar with the inner wax generally becomes a whole solid reinforced structure which can bear the traditional sawing procedure. Via a fixture, the assembly is sawed/cut to pieces of the predetermined length. The cut pieces are successively heated to have the inner solid wax liquefied and leave from the heat sink unit.
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