Patent ID: 7601553
Filing Date: 2009-10-13
Classification: C23C,H01L,H01S

Abstract:
1. A method of manufacturing a nitride semiconductor light emitting device, the nitride semiconductor light emitting device including a plurality of nitride semiconductor layers and an electrode layer disposed on the plurality of the nitride semiconductor layers, the plurality of nitride semiconductor layers having an active layer that generates light through recombination of electrons and holes, and a p-type nitride semiconductor layer for supplying holes to the active layer, the method comprising the steps of: forming the p-type nitride semiconductor layer of the plurality of nitride semiconductor layers, without a subsequent annealing process, by using ammonia and hydrazine-based material as nitrogen precursor wherein the p-type nitride semiconductor layer contains gallium, and the molar flow ratio of hydrazine-based material/gallium in 1 to 10 and, upon thermal decomposition, the hydrazine-based material generates a radical that is combined with a hydrogen radical to eliminate the hydrogen radical to make the p-type nitride semiconductor layer without the subsequent annealing process during the formation of the p-type nitride semiconductor layer; and forming the electrode layer to be electrically in contact with the p-type nitride semiconductor layer.