Patent ID: 8726485

Claim:
A method for making a housing of electronic device, comprising: making a shielding film, the shielding film including a base layer, an intermediate layer and an emulsion layer, the emulsion layer defining a bore area and a shielding area adjacent to the bore area; attaching the shielding film on a base, the emulsion layer contacting with a surface of the base; peeling the base layer from the shielding film; blasting the intermediate layer, the emulsion layer, and the base with a blasting material, the blasting material breaking through the intermediate layer and passing through the bore area of the emulsion layer to abrade the surface of the base and forming a blasting area, the blasting area corresponding to the bore area of the emulsion layer; eliminating the emulsion layer to expose a peripheral area on the surface of the base, the peripheral area corresponding to the shielding area, the blasting area and the peripheral area corporately forming a pattern layer.