Patent ID: 9006013
Filing Date: 2015-04-14
Classification: H01L,H01S

Abstract:
1. A method for manufacturing a semiconductor light emitting device, comprising: forming a nitride semiconductor layer including a light emitting layer on a major surface of a first substrate, the major surface being provided with an unevenness having a depression and a protrusion; bonding the nitride semiconductor layer to a second substrate; and separating the first substrate from the nitride semiconductor layer by irradiating the nitride semiconductor layer with light via the first substrate, the forming the nitride semiconductor layer including leaving a cavity in a space inside the depression of the unevenness while forming a thin film on an inner wall surface of the depression of the unevenness, the thin film including a same material as at least a part of the nitride semiconductor layer, the nitride semiconductor layer including a first portion facing the depression and a second portion facing the protrusion, and the separating including causing the thin film to absorb at least a part of the light so that an intensity of the light applied to the first portion is made lower than an intensity of the light applied to the second portion; wherein the protrusion is continuous, and the depression is provided in a plurality, and an angle between a side surface of an upper portion of the depression and a first axis perpendicular to the major surface is smaller than an angle between a side surface of a lower portion of the depression and the first axis.