Patent ID: 9006005
Filing Date: 2015-04-14
Classification: H01L

Abstract:
1. A method of fabricating a light emitting diode device, comprising: providing a substrate; providing an epitaxial structure on the substrate, a first layer on the substrate, an active layer on the first layer and a second layer on the active layer; depositing a conductive and reflective layer on the second layer of the epitaxial structure; forming an array of first trenches, a second trench on one side of the first trenches and a space on the other side of the first trenches, each of the first trenches and the second trench extending from surface of the conductive and reflective layer into the first layer to expose part of the first layer, the space extending from surface of the conductive and reflective layer to the substrate to expose part of the substrate; depositing conductive material to cover a portion of surface of the conductive and reflective layer to form a first contact pad, and surfaces between adjacent first trenches to form a second contact pad, wherein the second contact pad electrically connects the first layer by filling the conductive material in the first trenches, and wherein the first contact pad is spatially separated from the second contact pad by the second trench; and depositing a first passivation layer over uncovered portion of surface of the conductive and reflective layer to form a first planar passivation contact surface between the first contact pad and the second trench, the first passivation layer comprising a first passivation material; and depositing bonding material to cover a portion of surface of the first contact pad, a portion of the second contact pad and a portion of the first planar passivation contact to form a first light emitting diode bonding pad on the first contact pad, a second light emitting diode bonding pad on the second contact pad, and a third light emitting diode bonding pad on the first planar passivation contact, respectively.