Patent ID: 9440880
Filing Date: 2016-09-13
CPC Classification: C03C

Claim Text:
1. A method of manufacturing a light-emitting device, comprising the steps of: forming a light-emitting element over a first substrate; forming a sealing material layer over the first substrate, whereby the light-emitting element is surrounded by the sealing material layer; forming a metal film by using a sputtering method over a second substrate; forming a buffer layer over the second substrate in a closed pattern by selectively etching the metal film; forming a frit paste comprising a frit material and a binder over the buffer layer, whereby the buffer layer is interposed between the frit paste and the second substrate, and an entity of the frit paste overlaps with the buffer layer; removing the binder and fusing the frit material by heat treatment, whereby a glass frit is formed; stacking the first substrate comprising the sealing material layer and the second substrate comprising the glass frit, whereby the first substrate and the second substrate are bonded with the sealing material layer and the light-emitting element is surrounded by the glass frit; and irradiating the buffer layer with laser light passing through the second substrate to melt the glass frit by a heat from the buffer layer heated by the irradiation, whereby the glass frit and the first substrate are bonded, wherein the buffer layer is arranged for surrounding the light-emitting element after stacking the first substrate and the second substrate, and wherein the second substrate is capable of transmitting the laser light.