Patent ID: 9640714
Date: 2017-05-02
CPC Classifications: H01L

Claim:
1. A method for manufacturing a light emitting element, the method comprising: preparing a wafer including a substrate and a semiconductor structure, the substrate including a main face, the semiconductor structure provided on the main face of the substrate, the main face of the substrate including a plurality of protrusions at positions corresponding to lattice points of a regular triangular lattice, the regular triangular lattice including a plurality of lattice lines; forming a plurality of first modified parts in the substrate, the forming of the first modified parts including irradiating the substrate with a laser beam along a plurality first dividing lines, the first dividing lines disposed parallel, separated at a first spacing from each other, and intersecting with the lattice lines of the regular triangular lattice at a first acute angle, the first acute angle being the smallest angle formed by the lattice lines and the first dividing lines; forming a plurality of second modified parts in the substrate, the forming of the second modified parts including irradiating the substrate with a laser beam along a plurality of second dividing lines, the second dividing lines disposed perpendicular to the first dividing lines, parallel to each other, and separated at a second spacing that is narrower than the first spacing, the second dividing lines intersecting with the lattice lines of the regular triangular lattice at a second acute angle, the second acute angle being the smallest of the angles formed by the lattice lines and the second dividing lines, and the second acute angle being more acute than the first acute angle; and dividing the wafer along the first modified parts and the second modified parts to obtain a plurality of light emitting elements.