Patent ID: 8476652

Claim:
A light emitting diode (LED) chip comprising: a substrate including an integral region, a separating region and a slope region therebetween; a mesa formed on the substrate, wherein the upper surface of the mesa is vertically displaced relative to the upper surface of the substrate exposed by the mesa in the separating region, and the upper surface of the substrate exposed by the mesa in the separating region is connected to the upper surface of the mesa in the integral region via a slope surface in the slope region; a first LED structure formed on the upper surface of the substrate exposed by the mesa in the separating region and a second LED structure formed on the upper surface of the mesa in the separating region, wherein the first LED structure comprises a first n-type layer, a first active-region, and a first p-type layer, the second LED structure comprises a second n-type layer, a second active-region, and a second p-type layer, and the first and second LED structures are separated from each other in the separating region, while in the integral region, the first and second n-type layers merge into a single n-type layer, the first and second active-regions merge into a single active-region, and the first and second p-type layers merge into a single p-type layer.