Patent ID: 8481352
Filing Date: 2013-07-09
Classification: H01L

Abstract:
1. A method of fabricating a light-emitting diode chip, the method comprising: forming a first-type semiconductor layer, an active layer, and a second-type semiconductor layer on a first surface of a substrate, the active layer being disposed between the first-type semiconductor layer and the second-type semiconductor layer; forming a plurality of photoresist patterns on the second-type semiconductor layer, the photoresist patterns to define a plurality of light emitting regions; etching the first-type semiconductor layer, the active layer, and the second-type semiconductor layer using the photoresist patterns as an etching mask, thereby exposing a first portion of the first-type semiconductor layer; forming a plurality of metallic wires on the second-type semiconductor layer and the exposed first portion of the first-type semiconductor layer; and forming a plurality of grooves in the first-type semiconductor layer, the active layer, and the second-type semiconductor layer, the grooves exposing the substrate, wherein the grooves include inclined sidewalls that extend at a non-perpendicular angle with respect to the first surface of the substrate, through the first-type semiconductor layer, the active layer, and the second-type semiconductor layer.