Patent ID: 8076168

Claim:
A method for producing a light-emitting device, comprising: performing, on a first substrate made of III-V group compound semiconductor, crystal growth of a laminated body including an etching easy layer contiguous to the first substrate and a light-emitting layer made of nitride semiconductor; bonding a second substrate and the laminated body; and detaching the second substrate provided with the light-emitting layer from the first substrate by, one of removing the etching easy layer by using a solution etching method, and removing the first substrate and the etching easy layer by using mechanical polishing method, wherein the bonding process includes forming a first metal layer on the laminated body, forming a second metal layer on the second substrate, and heating the first and second metal layers in a state that the first and second metal layers are bonded, and the second substrate is made of Si, the first substrate is made of GaP, and the etching easy layer has at least anyone of AlGaP, InGaP, and GaAsP.