Patent ID: 9468114
Filing Date: 2016-10-11
CPC Classification: H04M,H05K,Y10T

Claim Text:
1. An electronic device, comprising: a main body; and a housing configured to assemble with the main body, the housing comprising: a substrate; and a decorative layer disposed on the substrate; wherein the decorative layer comprises chromium, iron, aluminum, chromium oxide, ferric oxide, and aluminum oxide; the chromium oxide, ferric oxide, and aluminum oxide distribute among the chromium, iron, and aluminum respectively to separate the atoms of chromium, iron, and aluminum from each other in the decorative layer; and wherein in the decorative layer, the chromium has a total mass percentage of about 19% to about 20%, the iron has a total mass percentage of about 68% to about 71%, the aluminum has a total mass percentage of about 4% to about 5%, and oxygen has a total mass percentage of about 4% to about 5%.