Patent ID: 8399277

Claim:
A method for the fabrication of a compound semiconductor light-emitting diode comprising a light-emitting layer formed of aluminum-gallium-indium phosphide ((Al X Ga 1-X ) Y In 1-Y P wherein 0≦X≦1, 0<Y≦1), component layers individually having a light-emitting part formed of a Group III-V compound semiconductor and a transparent supporting layer bonded to an outermost surface layer of the light-emitting part and transparent to light emitted from the light-emitting layer, wherein the outermost surface layer of the light-emitting part is formed of a Group III-V compound semiconductor and a surface of the supporting layer is formed of a Group III-V compound semiconductor crystal material, a Group II-VI compound semiconductor crystal material, or a Group IV compound semiconductor crystal material, said method comprising the steps of: growing the component layers of the light-emitting part on a substrate to form the light-emitting part; polishing the light-emitting part by mirror-polishing the outermost surface layer of the light-emitting part to an average roughness of 0.3 nm or less; preparing the supporting layer separately of the light-emitting part; irradiating one or both of the polished outermost surface layer of the light-emitting part and a surface of the supporting layer to be bonded to the light-emitting part in a vacuum with atoms or ions possessing an energy of 50 eV or more; and bonding and adhering the polished outermost surface layer of the light-emitting part and the surface of the supporting layer, wherein the bonding and adhering step is performed at room temperature or more and 100° C. or less.