Patent ID: 7541205
Filing Date: 2009-06-02
Classification: H01L,Y10S

Abstract:
1. A method for fabricating a transparent electrode of a visible LED, comprising: providing a visible LED element, comprising a substrate, an epitaxial structure, and a metal electrode at least located on a first surface of the epitaxial structure, wherein the metal electrode and the epitaxial structure are formed on a same side of the substrate; forming an ohmic metal layer over a second surface of the epitaxial structure, wherein the first surface and a second surface of the epitaxial structure are on the same side of the substrate; thermal annealing the ohmic metal layer; entirely removing the ohmic metal layer to expose the second surface of the epitaxial structure; forming a transparent electrode layer directly contacting the second surface of the epitaxial structure in the absence of the ohmic metal layer; and forming a metal pad over the transparent electrode layer.