Method of making a surface emitting light emitting diode

摘要

A light-emitting diode and corresponding method for its fabrication, in which a blocking layer is used for current confinement, and a rectangular light emission pattern is employed, to avoid anisotropic effects when material systems such as indium phosphide are used. A critical step in the method of the invention is etching an opening through the blocking layer. The opening has its sides precisely oriented at forty-five degrees with respect to the cleavage planes of the substrate, to avoid exposing any crystal planes that are anisotropic.