Patent ID: 7399649

Claim:
A fabrication method of a semiconductor light-emitting device, comprising: a first process for forming an underlying layer on a substrate; a second process for forming a mask having a number of microscopic opening portions on said underlying layer; a third process for forming a bump and dip shaped transfer layer having a number of projected portions made up of a plurality of microscopic planes inclined with respect to said substrate plane, by selective growth at each of said opening portions and by lateral growth on said mask; a fourth process for forming, on said bump and dip shaped transfer layer, a light absorption layer less in band gap energy than said underlying layer and said transfer layer; a fifth process for forming a planarization layer having a flat principal growth plane on said light absorption layer; a sixth process for forming a structured light-emitting layer having at least an active layer on said planarization layer; and a seventh process for decomposing said light absorption layer by irradiating the backside of said substrate with light reaching said light absorption layer to delaminate said substrate, the underlying layer, and the transfer layer from said planarization layer, wherein said planarization layer is employed as a light extraction face for extracting light produced in said active layer out of the device, and wherein in said seventh process, an energy level of the light used to irradiate the backside of said substrate is less than a band gap energy level of said underlying layer and said transfer layer and is greater than a band gap energy level of said light absorption layer.