Patent ID: 8852448

Claim:
A method for fabricating a 3D (three-dimensional) structure having a hydrophobic surface using a dipping method, comprising: immersing a predetermined-shaped structure in a molten metal solution to coat a molten metal material on an outer surface of the predetermined-shaped structure having the 3D structure, thus forming a metal base coated with the molten metal material; anodizing the formed metal-coated base to form nano-scale holes on an outer surface of the metal-coated base; coating a polymer material on the anodized outer surface of the metal-coated base to form the polymer material as a negative replica structure corresponding to the nano-scale holes of the metal-coated base; covering an outer surface of the negative replica structure with an outer formation material; and removing the metal-coated base with the holes formed on the outer surface from an inner surface of the negative replica structure covered with the outer formation material, resulting in the 3D structure formed with the remaining negative replica structure and outer formation material such that the formed 3D structure has an outer surface covered with the outer formation material and the hydrophobic inner surface.