Patent ID: 8540919

Claim:
A manufacturing method of a housing of an electronic device, comprising: providing a metal member; forming a plurality of nano-class apertures on a surface of the metal member; enlarging each of the nano-class apertures and roughening inner walls of the nano-class apertures so that the nano-class apertures become micro-class anchored apertures, wherein inner walls of the micro-class anchored apertures are formed with uneven cavities and protrusions thereon; placing the metal member in a plastic injection mold, wherein the plastic injection mold is set at a first temperature; and providing a molten plastic material in the plastic injection mold for being combined with the surface of the metal member having the micro-class anchored apertures, wherein the plastic material fills in the micro-class anchored apertures and fully abuts and adheres on the inner walls of the micro-class anchored apertures, and the plastic injection mold is set at a second temperature, and the second temperature is higher than the first temperature.