Patent ID: 7803648
Filing Date: 2010-09-28
Classification: H01L

Abstract:
1. A method for the production of a nitride semiconductor light-emitting device comprising a substrate, a nitride semiconductor layer incorporating therein a first electroconductive semiconductor layer, a light-emitting layer and a second electroconductive semiconductor layer, a transparent electrode contiguous to at least part of a first surface of the second electroconductive semiconductor layer, and a second electrode contiguous to the first electroconductive semiconductor layer, comprising the steps of: removing a first part of the nitride semiconductor layer in a peripheral part of the device till the substrate is exposed to form a first exposed region thereof; and removing at least a second part of the nitride semiconductor layer contiguous to the transparent electrode except the peripheral part of the device till the substrate is reached to form a second exposed region thereof; wherein the steps are taken by combining the removal first with a laser and then the removal by wet etching.