Patent attributes
A method for manufacturing an optical device comprises steps of: (a) laminating a first, a second, a third, a fourth, a fifth, and a sixth semiconductor layers; (b) patterning at least the third, fourth, fifth and sixth semiconductor layers, thereby forming a light emitting device section and a rectification section; (c) forming first and second electrodes for driving the light emitting device section; and (d) connecting the fourth and sixth semiconductor sections between the first and second electrodes in parallel with the light emitting device section so as to have a rectification action in a reverse direction with respect to the light emitting device section, wherein the step (b) includes conducting etching until a portion of a top surface of the third semiconductor layer is exposed.
