Patent ID: 8163582
Filing Date: 2012-04-24
Classification: H01L

Abstract:
1. A method for fabricating a light emitting diode chip comprising the steps of: depositing a multilayer semiconductor structure on a transparent growth substrate, wherein said growth substrate has a first surface and a second surface opposite said first surface, wherein said multilayer semiconductor structure has a first surface in contact with said second surface of said growth substrate and a second surface opposite said first surface, wherein said multilayer semiconductor structure is at least 10 microns thick and wherein said multilayer semiconductor structure includes a first doped layer proximal to said growth substrate, an active region, and a second doped layer distal from said growth substrate, wherein said active region is interposed between said first doped layer and said second doped layer; etching a first array of parallel streets substantially through said multilayer semiconductor structure by scanning a first laser beam directed to said second surface of said multilayer semiconductor structure; and detaching said multilayer semiconductor structure from said growth substrate wherein said first surface of said multilayer semiconductor structure is exposed.