Patent ID: 8080436

Claim:
A method of manufacturing a light emitting device comprising: a first step of forming a metallic layer on a supporting substrate made of a stainless steel, the metallic layer comprising a metal having a diffusion coefficient with respect to Au smaller than a diffusion coefficient of a metal contained in the supporting substrate with respect to the Au; forming a plurality of conductive members spaced apart from each other on the metallic layer, each of the plurality of conductive members comprising a first region containing the Au, and a second region disposed on at least a part of the first region and the supporting substrate, the second region comprising a metallic member having a diffusion coefficient with respect to the metal contained in the supporting substrate smaller than a diffusion coefficient of the Au with respect to the metal contained in the supporting substrate, and forming a first layer of the each of the plurality of conductive members as the first region on the metallic layer, the first layer having the Au as its main component, and a second layer as the second region formed on the first layer, the second layer containing a metal other than the Au as its main component; a second step of forming at least one base member made of a light-blocking resin on the supporting substrate at locations having the first region of conductive member, and forming a plurality of additional base members made of a light blocking resin on the supporting substrate or the metallic layer exposed at locations between the plurality of conductive members; a third step of bonding at least one light emitting element on an upper surface of a second region of the conductive member through an adhesive member, wherein the third step comprises, mounting a plurality of light emitting elements on each upper surface of the plurality of conductive members or base members through at least one adhesive member containing a metal, and applying heat at a temperature lower than the melting point of the metallic layer to melt the at least one adhesive member; a fourth step of covering the light emitting element with an optically transmissive sealing member; and a fifth step of removing the supporting substrate so as to expose at least a part of the first region of the conductive member, wherein the fifth step comprises, removing the supporting substrate by detaching between the metallic layer and the first layer and individually separating the light emitting device.