| 摘要 |
A method for fabricating a supporting column of a heat sink is disclosed. A substrate having a concave portion, and a material injection board having a through hole are prepared first. The material injection board is then mounted on the concave portion of the substrate with the through hole of the material injection board being located at a position of the substrate where a supporting column is to be formed. Aggregate is injected into the through hole, and then the substrate, the material injection board and the aggregate are disposed under a high-temperature environment for sintering. After the aggregate is formalized, the material injection board is removed from the substrate so as to obtain a substrate having a supporting column formed on the concave portion. Since the supporting column fabricated according to the above method has improved capillary structure and density, the heat sink has an improved heat dissipating efficiency.
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