Patent ID: 6881985
Filing Date: 2005-04-19
Classification: H01L

Abstract:
1. A light emitting diode of a double hetero-junction type in which a light-emitting layer made of a GaAlInP material is interposed between a p-type cladding layer and an n-type cladding layer, wherein: a p-side electrode is formed on a p-type cladding layer-side surface having an area of 0.15 mm thus or more; any point present in a region not containing the p-side electrode of said p-type cladding layer-side surface is within a distance of (Ld×2) from some point on an edge of said p-side electrode, where Ld is a distance from a position at which an optical power is maximum, to a position at which the optical power attenuates by 90%; and said p-side electrode comprises a plurality of branch electrodes and a connection electrode connecting said branch electrodes to each other electrically.