Patent ID: 8956890
Filing Date: 2015-02-17
Classification: H01L

Abstract:
1. A method for producing a Group III nitride semiconductor light-emitting device including a p-cladding layer comprising a Group III nitride semiconductor containing Al on a light-emitting layer, wherein the p-cladding layer is formed in a former process where a first p-cladding layer is formed by metalorganic chemical vapor deposition (MOCVD) on the light-emitting layer, and in a latter process where a second p-cladding layer is formed by MOCVD on the first cladding layer, and wherein a supply amount of a Mg dopant gas in the latter process is half or less than a supply amount of Mg dopant gas in the former process such that a Mg concentration distribution is obtained in which after the Mg concentration steeply increases from a vicinity of an interface between the light-emitting layer and the p-cladding layer toward a p-contact layer, the Mg concentration is kept almost constant, and then the Mg concentration steeply decreases in a vicinity of the interface between the p-cladding layer and the p-contact layer.