Method of manufacturing light emitting device

#The present disclosure relates to a light emitting device and method of manufacturing the same.

#Japanese Unexamined Patent Application Publication No. 2016-48718 discloses a light emitting device as a side-emission type light emitting device including: a flip-chip type light emitting element in which an element substrate, a crystal layer on the element substrate, outer electrodes electrically connected to the crystal layer are included; an optical member having a surface inclined to the outer electrodes, the optical member formed on the element substrate side of the light emitting element; a reflective layer formed on the inclined surface of the optical member. In such light emitting device, light emitted from the light emitting element and entering the optical member is reflected by the reflective member, and extracted from the light extraction surface of the optical member.

#The light emitting device disclosed in the above mentioned publication has a poor light emission efficiency due to a poor efficiency of light incident from the light emitting element to the optical member. In order to increase the light output, the light emitting element is needed to be larger, resulting in increase of the size of the light emitting device.

#FIG. 1 is a schematic front view of a light emitting device of Embodiment 1.

#FIG. 2 is a schematic sectional view of the light emitting device taken along a line II-II in FIG. 1.

#FIG. 3 is a schematic sectional view of a light emitting device of another embodiment.

#Hereinafter, an embodiment will be appropriately described referring to drawings. However, a light-emitting device described below is provided for the purpose of embodying the technical concept described in the present disclosure, and unless specifically stated otherwise, the present disclosure is not limited to descriptions below. Also, the content of one embodiment and example can be applied to other embodiments and examples. There is a case where a magnitude, aspect ratio or positional relation of members illustrated in each drawing is exaggerated so as to clarify the description.

#In FIGS. 1 to 3, an X direction, a Y direction and a Z direction perpendicular to one another are illustrated with allows. The present disclosure may refer to the X direction as a longitudinal direction, the Y direction as a thickness direction, the Z direction as a width direction.

#The light emitting device has a rectangular-cuboid outer shape and has six outer surfaces including an upper surface, a lower surface which is opposite to the upper surface and serves as a mounting surface, four lateral surfaces between the upper surface and the lower surface. One of the lateral surfaces is configured with one surface of the light transmissive member exposed from the light emitting device. The surface of the light transmissive member exposed from the light emitting device serves as a light extraction surface, and referred to as a front surface in which the surface of the light transmissive member is included. A surface opposite to the front surface is also referred to as a back surface.