Patent ID: 7332744

Claim:
A semiconductor light-emitting device comprising: an active layer having a current injection region; and a current confinement layer restricting the current injection region in the active layer and being provided on a side of the active layer, the current confinement layer including a non-oxidized region made of a semiconductor corresponding to the current injection region in the active layer; and an oxidized region having lower conductivity than the non-oxidized region corresponding to a region other than the current injection region in the active layer, the oxidized region being formed by forming a non-oxidized layer made of the semiconductor and then oxidizing part of the non-oxidized layer at a temperature from 240° C. to less than 375° C., wherein, the width of the oxidized region on one side of the non-oxidized region is greater than or equal to the width of the non-oxidized region, the non-oxidized region and the current injection region are formed in strip shape and the oxidized region is formed in strip shape on both sides of the non-oxidized region, and a distance between the current confinement layer and the active layer is 50 nm or more.