Patent ID: 8377728

Claim:
A method for making a light emitting diode, comprising: providing a substrate; locating a patterned mask layer on a surface of the substrate, wherein the patterned mask layer comprises a plurality of bar-shaped protruding structures aligned side by side, and a slot is defined between each two adjacent protruding structures of the plurality of bar-shaped protruding structures to expose a portion of the substrate; etching the exposed substrate, wherein the each two adjacent protruding structures begin to slant face to face until they are contacting each other to form a protruding pair; forming a plurality of three-dimensional nano-structures by removing the patterned mask layer; growing a first semiconductor layer, an active layer and a second semiconductor layers on a surface of the plurality of three-dimensional nano-structures in that order; applying a first electrode electrically connected with the first semiconductor layer; and locating a second electrode electrically connected with the second semiconductor layer.