A semiconductor device having light-emitting diodes (LEDs) formed on a concave textured substrate is provided. A substrate is patterned and etched to form recesses. A separation layer is formed along the bottom of the recesses. An LED structure is formed along the sidewalls and, optionally, along the...http://www.google.fr/patents/US8134163?utm_source=gb-gplus-shareBrevet US8134163 - Light-emitting diodes on concave texture substrate
Light-emitting diodes on concave texture substrate
