Patent ID: 9190570
Filing Date: 2015-11-17
Classification: H01L

Abstract:
1. A method of laser annealing a GaN light-emitting diode (LED) structure, comprising forming elongate conductive structures atop either an n-GaN layer or a p-GaN layer of the GaN LED structure, the elongate conductive structures having long and short dimensions, and being spaced apart and substantially aligned in the long dimensions; generating a P-polarized anneal laser beam that has an anneal wavelength that is greater than the short dimension; and irradiating either the n-GaN layer or the p-GaN layer of the GaN LED structure through the conductive structures with the P-polarized anneal laser beam, including directing the anneal laser beam relative to the conductive structures so that the polarization direction is perpendicular to the long dimension of the conductive structures.